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Tue, 19 Apr 2022 09:47:25 +0200 Content-Type: multipart/alternative; boundary="------------PqApDscBwORJ72FPZsffrn9i" Message-ID: <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> Date: Tue, 19 Apr 2022 09:47:25 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US From: =?UTF-8?Q?Arnaud_Pana=c3=afotis?= To: bug-coreutils@gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> In-Reply-To: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> X-Antivirus: Avast (VPS 220418-6, 18/4/2022), Outbound message X-Antivirus-Status: Clean X-Provags-ID: V03:K1:XHeeX9odi4km9VK0hKbsg0Ip9c+j8Kzn0ICCuKlKzg9/EE31BQi wQi57FDxmYSYc1zFLw08adN3zGjdDMoE6NM8qh7vejlf4yibJE4a/d9ViaMoNNkS64gsqNG WSVCSDjWeRVBmkaYast5V49x0DK8ehCS+In6frdratLzzqvj3jtdi66qH0yG50laAIsUTXF dRGVSzu6uxypo9Gena/Vw== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:aPR3a+XNo54=:mNrGUa6E/uC+hj/LlMwX0m VEZgzaI25sl2ZrUO2bzsTGfiVwIA/Hp95eI85PW76D5wuK/Noez8V4zNgo1nxHp/gKGeP81Ur C3nucq3SUek2eyKfUengA4rshTUgZ7uvdtZccFJRw0dKDFwJBLOczaVl95HfpKl4lo/o2T14t kQJWWbATJdW5NfsV5QREUgsID2hChWCwuTLbRnasKRn1AGNbhK4z/0mmP/WLSPELSrXMwJxxa GOW418dauVK/CbsjrecwEGlTr3YJKiImAoSdIHLu1D4yLwXfS5gqKxibVkjMvmMkGjiydVjLb VXMu1mm3N/71pH59SYrwsATCgBtBSPqW+HZBBxhF7HYTA4qOJagU+z9DftJpY/shLqwGIqWTO Pquzno+H+B8hj7w6BydmbxkG4/5c2qoCUzeBGnrYzk0+ZuMcQqklj3ee3zUdhU/um4tgCh3Xy yoPF3aIsu83LbvXolhsy1JPVP/HyNBbN4xIaE3o/AJayj/Nod78V1vLt4kgcuuTLvs+b5q0BS M+7aSdfa1HRRE5KZjjWdDRWEIaBjbyUOv7/Qgg8Di+8Rt/EL7weaiicE/rzosfkd9Ew2S59F8 9uzTUIgxFDqoqgZuSD6Y2aCb/Di2q0T/Ymhi9YtzTVQ9LirKhbnZV7Fn6M/YpLWSKHOLIsc7J glPG0Bl4STDJNz0lCG5M1wWTjcUu5QalZ0w+3rRtpbuRPlGdFSTjIeGVksS89lclXs8X07jVT D/4N91V0H0vKVrMk9BoGZyuCDQA1Pd3rzB8IJGn3OIwPiXPlms71e3TrvWzYguPFonP/tcXRt 0mi0BjA89sDatiJObLCKO7lxlZQBokaarYRkzTI2qzEyggJn+JrcUUf9BkGNzDs+29fLhCJeD e3Ohh7Jcls1m2hfkWLdUHLXbShEGRu75yhlMP/dAiuXr3NX4sHc4AqYha1yj+sJMlflU0nACt uvBVVm+UHUi8DrsWClOKUL+L/p/8xrAqZav/P8qVOKF0TQbKIC3Y3HZ3kcewfQM7G73/O873x 1eSy6MIQrnrr4gem9cARPWRpzhCEfZjCUIs6wr+42A1MRuSA4du4R6aU635/WpCLyWWUf6VEO jLfjsyRqcKuVAc= Received-SPF: pass client-ip=212.227.17.20; envelope-from=arnaud.panaiotis@gmx.fr; helo=mout.gmx.net X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_REMOTE_IMAGE=0.01, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.4 (-) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Tue, 19 Apr 2022 07:16:57 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.4 (--) This is a multi-part message in MIME format. --------------PqApDscBwORJ72FPZsffrn9i Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Hello, I did not received any feedback from this request right now. Have you made any progress on this subject ? Please let me know the progress for this, or contact me for additional information if needed. I'd like to have a ticket link to follow the advancement of this issue (if possible). I'm available to test a patch if you are able to provide me one. Best regards, On 01/04/2022 15:55, Arnaud Pana=C3=AFotis wrote: > > Hello, > > I'm working for a client to generate embedded 32-bits Linux Kernel > working after y2038 issue. > > I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC > 11.2.0, Binutils 2.37 and CFLAGS=C2=A0 -D_LARGEFILE_SOURCE > -D_FILE_OFFSET_BITS=3D64=C2=A0 -D_TIME_BITS=3D64 > > The Kernel pass y2038 but I found an issue with cp: > After analysis, the error occurs when trying to move an empty folder > without all user mode rights. > > Here how to reproduce: > > # mkdir -p test/test1 folder > # chmod u-w test/test1 > # date -s "2040-04-02" > # cp -a test/* folder/ > cp: setting permissions for 'folder/test1' : Value too large for defined= data type > > Note: The folder is copied before the error occurs. The copy works > fine before y2038. > > > The issue comes from coreutils-9.0/src/cp.c > > Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) !=3D 0) > > FYI I had a previous issue while calling lstat function from > which is included in lib/lchmod.c. I used /usr/bin/stat > as a workaround. > > > Keep me in touch if you need more information. > > -- > > *Arnaud PANA=C3=8FOTIS* | Lead Developer Freelance > +33 6 34 82 12 62 | arnaud.panaiotis@gmx.fr > > > 18 place Jean Moulin - 38000 Grenoble - France > APsudo - www.panaiotis.fr =2D- *Arnaud PANA=C3=8FOTIS* | Lead Developer Freelance +33 6 34 82 12 62 | arnaud.panaiotis@gmx.fr > 18 place Jean Moulin - 38000 Grenoble APsudo - www.panaiotis.fr =2D- L'absence de virus dans ce courrier =C3=A9lectronique a =C3=A9t=C3=A9 v=C3= =A9rifi=C3=A9e par le logiciel antivirus Avast. https://www.avast.com/antivirus --------------PqApDscBwORJ72FPZsffrn9i Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

Hello,

I did not received any feedback from this request right now. Have you made any progress on this subject ?

Please let me know the progress for this, or contact me for additional information if needed.

I'd like to have a ticket link to follow the advancement of this issue (if possible). I'm available to test a patch if you are able to provide me one.

Best regards,

On 01/04/2022 15:55, Arnaud Pana=C3=AFo= tis wrote:

Hello,

I'm working for a client to generate embedded 32-bits Linux Kernel working after y2038 issue.

I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC 11.2.0, Binutils 2.37 and CFLAGS=C2=A0 -D_LARGEFILE_SOURCE=C2= =A0 -D_FILE_OFFSET_BITS=3D64=C2=A0 -D_TIME_BITS=3D64

The Kernel pass y2038 but I found an issue with cp:
After analysis, the error occurs when trying to move an empty folder without all user mode rights.

Here how to reproduce: 

# mkdir -p test/test1 folder
# chmod u-w test/test1
# date -s "2040-04-02"
# cp -a test/* folder/
cp: setting permissions for 'folder/test1' : Value too large fo=
r defined data type

Note: The folder is copied before the error occurs. The copy works fine before y2038.


The issue comes from coreutils-9.0/src/cp.c

Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) !=3D 0)
      
FYI I had a previous issue while calling lstat function from
        <sys/stat.h> which is included in lib/lchmod.c. I used
        /usr/bin/stat as a workaround.

      

      


      

      
Keep me in touch if you need more information.

      
-- 

        

        Arnaud PANA=C3=8FOTIS | Lead Developer Freelance

        +33 6 34 82 12 62 | arnaud=
.panaiotis@gmx.fr

        

        18 place Jean Moulin - 38000 Grenoble - France

        APsudo - www.panaiotis.fr
--

Arnaud PANA=C3=8FOTIS | Lead Developer Freelance
+33 6 34 82 12 62 | arnaud.panaiotis@gmx.fr

18 place Jean Moulin - 38000 Grenoble
APsudo - www.= panaiotis.fr


3D"Avast

L'absence de virus dans ce courrier =C3=A9lectronique a =C3=A9t=C3=A9 = v=C3=A9rifi=C3=A9e par le logiciel antivirus Avast.
www.avast.com


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[95.44.90.175]) by smtp.googlemail.com with ESMTPSA id n68-20020a1c2747000000b0038e6b4d5395sm17184091wmn.16.2022.04.19.07.00.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 19 Apr 2022 07:00:26 -0700 (PDT) Message-ID: <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> Date: Tue, 19 Apr 2022 15:00:25 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:97.0) Gecko/20100101 Thunderbird/97.0 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: =?UTF-8?Q?Arnaud_Pana=c3=afotis?= , 55023@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> From: =?UTF-8?Q?P=c3=a1draig_Brady?= In-Reply-To: <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Score: 0.5 (/) X-Debbugs-Envelope-To: 55023 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.5 (/) On 19/04/2022 08:47, Arnaud Panaïotis wrote: > Hello, > > I did not received any feedback from this request right now. Have you > made any progress on this subject ? > > Please let me know the progress for this, or contact me for additional > information if needed. > > I'd like to have a ticket link to follow the advancement of this issue > (if possible). I'm available to test a patch if you are able to provide > me one. > > Best regards, > > On 01/04/2022 15:55, Arnaud Panaïotis wrote: >> >> Hello, >> >> I'm working for a client to generate embedded 32-bits Linux Kernel >> working after y2038 issue. >> >> I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC >> 11.2.0, Binutils 2.37 and CFLAGS  -D_LARGEFILE_SOURCE >> -D_FILE_OFFSET_BITS=64  -D_TIME_BITS=64 >> >> The Kernel pass y2038 but I found an issue with cp: >> After analysis, the error occurs when trying to move an empty folder >> without all user mode rights. >> >> Here how to reproduce: >> >> # mkdir -p test/test1 folder >> # chmod u-w test/test1 >> # date -s "2040-04-02" >> # cp -a test/* folder/ >> cp: setting permissions for 'folder/test1' : Value too large for defined data type >> >> Note: The folder is copied before the error occurs. The copy works >> fine before y2038. >> >> >> The issue comes from coreutils-9.0/src/cp.c >> >> Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) != 0) >> >> FYI I had a previous issue while calling lstat function from >> which is included in lib/lchmod.c. I used /usr/bin/stat >> as a workaround. >> >> >> Keep me in touch if you need more information. The original mail seems to not have hit the lists, sorry. The error suggests that the fstatat() done within lchmod() is using a 32 bit time_t component of the stat structure. Your kernel is new enough to support the 64 bit equivalent, but you don't mention glibc. Can you ensure you're using at least glibc 2.34, which added support for the 64 bit variants. coreutils is configured by default to enable use of the 64 bit variants where available, and you've confirmed this as you say both -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 are defined. An strace of the cp command would be useful to confirm the problematic syscall. thanks, Pádraig From debbugs-submit-bounces@debbugs.gnu.org Tue Apr 19 11:01:45 2022 Received: (at 55023) by debbugs.gnu.org; 19 Apr 2022 15:01:45 +0000 Received: from localhost ([127.0.0.1]:43902 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ngpMO-0007oS-EM for submit@debbugs.gnu.org; Tue, 19 Apr 2022 11:01:45 -0400 Received: from mout.gmx.net ([212.227.17.22]:57989) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ngpML-0007oE-V1 for 55023@debbugs.gnu.org; Tue, 19 Apr 2022 11:01:43 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1650380495; bh=sUTx04N+JFwcGljhI7ez+MHubLj+8wKg7tBSr+mBvC8=; h=X-UI-Sender-Class:Date:Subject:To:References:From:In-Reply-To; b=isWUl2CtByx9vAgb2XwduI+YaNIFopOmaQ+1gMIL8jnTTeHNiXaaRX+jchSzwpDY/ akscAi3M9FIS/GmABQzB1eAFg+gGOhqBkxSEr3NINXhQnAC1lbS6jSJ3MOPhB/STdQ 0Shepzewyai4LYPIktB8mqWjc1UFp5qTvgNU+ejg= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [100.120.35.85] ([51.158.21.218]) by mail.gmx.net (mrgmx104 [212.227.17.174]) with ESMTPSA (Nemesis) id 1M8QS8-1ncRe31nQ8-004SNT; Tue, 19 Apr 2022 17:01:35 +0200 Content-Type: multipart/mixed; boundary="------------COWUHwWy3000Wt0WE43oJ62E" Message-ID: <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> Date: Tue, 19 Apr 2022 17:01:35 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: =?UTF-8?Q?P=c3=a1draig_Brady?= , 55023@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> From: =?UTF-8?Q?Arnaud_Pana=c3=afotis?= In-Reply-To: <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> X-Antivirus: Avast (VPS 220419-6, 19/4/2022), Outbound message X-Antivirus-Status: Clean X-Provags-ID: V03:K1:TS1sP9x4rRv/H4jVDK3Nwe2rgAQT9ng3f2SigFMBidrvK2VeMvu 4rwDwpvobzFEKw3knPICZh5pj2nFwww8uBauixRCstskHf/i0cl46mJ2lWru3A3xUGTpFby 12VfuSWPzneotgigbpuHnerebQY8dPi67nY5O9lcdnxW2ObxoEFyGcHpCiB6+Hay/hi1oG2 mt8E2fEpPL5Vt33Yvspqg== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:B9qRRxgB2Dk=:jky6Z48yOWN4QT/CxaIX6W n0UX9HwL13j8Seu62oAhPX2AM+j5PaX+t0k2bSYG9F+zOAW48hV74/tf6BqEc3RuWoYMkEsV+ vmYVnSN0g/SkYzNpx5xD4A3NYu6VmLtiIziWGUTUQqImM8tXDYSi3P3elKDlYRDh7CU3zAgAF LBJe/5srV85AF0RG/Q5JeQumCZKtZppNOM9W32TjtKvDkyLAsbSqyEx7EFQIfP+RUeo79YbR9 E8xfM0h99NrWeIImH4gc8zJQLXsIqJ5osrmh3cqAm8Uz74v9+iZ5mIrValH9rKk2cMEKlvdmq dSgkHCoHb4NlxFu4yNwEEj9lcHTwM6fZ7thqLLhuJM1whPpBVoY9ZLUK2EknxBEWcrNiufjgR FzsMW3jw31CY+OL2t4LOmVkIbR++gFX6smR9plfgsIilmQdDCRjGlLwZPbVCwdNFBwboolwMX zMxikVeqtJ096t8ixQpgFq2kFp5LijhbQ2nHeVg3CvwwwTCR4sk33wHZo3MNCD3uSqjeG+8Rt G8c7CrgEmFbc15D7Tz8nSrVZTuY1CxFW5XRQWHB2c9cDBYh0pVMtVMSaX7L1oS3jMptj3e/rP wX9CrGdjqDrhdHi6barndc7GdIxyA8oi/yyOumt7b6FONbNTybmKFQjGDijPEMbhW38xFXiEU u/l/YHRkGSiSkTBxr5tCQ97IxOtoMwPqBmkb0Z1LJPUAI5cJt6Rt1PVp6SA+Mj8VxZBSQm0kG iG5fUuiLJbElWQanW/4R2eZ60YSiOdkj2txpkvOMMsS4ud5X9R3gkpwTOC12PIWnqw8t5CXa+ 9crW+Vqxcp6u9flQ3WuAfQnb7sfxhZKYV9FRmIXcSeeE/mzpEOpHL/3ghLhhDi2aD/ZCn2pkq l05mmFyvg2bW6f5KCF/qxTllKuc/n/aJY0lg0C5GiPyIFNPih4EezBnIjv+dsmNPHku3g8J9n oLGYGepi00/CyOgOIwWkDbx85CtU8xTGLssd++NBAoqNkwUhGmtFdM5TqHqWo5DEcgbADBvlf YTMO255a8W1sNxw62FpckbRn55fQrGb0/1oban0kjtRLIRr03yMuO/EV4VSrO6ni+awaUU85K IRULWNu7mYzQ4A= X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 55023 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.7 (-) This is a multi-part message in MIME format. --------------COWUHwWy3000Wt0WE43oJ62E Content-Type: multipart/alternative; boundary="------------fyKMQ4qaAYJBWT6dq1z2Z4JK" --------------fyKMQ4qaAYJBWT6dq1z2Z4JK Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable On 19/04/2022 16:00, P=C3=A1draig Brady wrote: > On 19/04/2022 08:47, Arnaud Pana=C3=AFotis wrote: >> Hello, >> >> I did not received any feedback from this request right now. Have you >> made any progress on this subject ? >> >> Please let me know the progress for this, or contact me for additional >> information if needed. >> >> I'd like to have a ticket link to follow the advancement of this issue >> (if possible). I'm available to test a patch if you are able to provide >> me one. >> >> Best regards, >> >> On 01/04/2022 15:55, Arnaud Pana=C3=AFotis wrote: >>> >>> Hello, >>> >>> I'm working for a client to generate embedded 32-bits Linux Kernel >>> working after y2038 issue. >>> >>> I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC >>> 11.2.0, Binutils 2.37 and CFLAGS=C2=A0 -D_LARGEFILE_SOURCE >>> -D_FILE_OFFSET_BITS=3D64=C2=A0 -D_TIME_BITS=3D64 >>> >>> The Kernel pass y2038 but I found an issue with cp: >>> After analysis, the error occurs when trying to move an empty folder >>> without all user mode rights. >>> >>> Here how to reproduce: >>> >>> # mkdir -p test/test1 folder >>> # chmod u-w test/test1 >>> # date -s "2040-04-02" >>> # cp -a test/* folder/ >>> cp: setting permissions for 'folder/test1' : Value too large for >>> defined data type >>> >>> Note: The folder is copied before the error occurs. The copy works >>> fine before y2038. >>> >>> >>> The issue comes from coreutils-9.0/src/cp.c >>> >>> Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) !=3D 0) >>> >>> FYI I had a previous issue while calling lstat function from >>> which is included in lib/lchmod.c. I used /usr/bin/stat >>> as a workaround. >>> >>> >>> Keep me in touch if you need more information. > > The original mail seems to not have hit the lists, sorry. > > The error suggests that the fstatat() done within lchmod() > is using a 32 bit time_t component of the stat structure. > Your kernel is new enough to support the 64 bit equivalent, > but you don't mention glibc. Can you ensure you're using > at least glibc 2.34, which added support for the 64 bit variants. > > coreutils is configured by default to enable use > of the 64 bit variants where available, and you've confirmed > this as you say both -D_FILE_OFFSET_BITS=3D64 and -D_TIME_BITS=3D64 are > defined. > > An strace of the cp command would be useful to confirm the problematic > syscall. > > thanks, > P=C3=A1draig Hello, Thanks for the quick answer. My glibc is 2.34-9 (2.34-9-g9acab0bba6a5a57323b1f94bf95b21618a9e5aa4). Strace attached. Except for the stat.h, I encountered no issue with Kernel, mysql, my application... I indeed suspect stat.h to use a 32 bits time_t somewhere. Regards, =2D- *Arnaud PANA=C3=8FOTIS* | Lead Developer Freelance +33 6 34 82 12 62 | arnaud.panaiotis@gmx.fr > 18 place Jean Moulin - 38000 Grenoble APsudo - www.panaiotis.fr =2D- L'absence de virus dans ce courrier =C3=A9lectronique a =C3=A9t=C3=A9 v=C3= =A9rifi=C3=A9e par le logiciel antivirus Avast. https://www.avast.com/antivirus --------------fyKMQ4qaAYJBWT6dq1z2Z4JK Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 19/04/2022 16:00, P=C3=A1draig Brady wrote:
On 19/04/2022 08:47, Arnaud Pana=C3=AFotis wrote:
Hello,

I did not received any feedback from this request right now. Have you
made any progress on this subject ?

Please let me know the progress for this, or contact me for additional
information if needed.

I'd like to have a ticket link to follow the advancement of this issue
(if possible). I'm available to test a patch if you are able to provide
me one.

Best regards,

On 01/04/2022 15:55, Arnaud Pana=C3=AFotis wrote:

Hello,

I'm working for a client to generate embedded 32-bits Linux Kernel
working after y2038 issue.

I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC
11.2.0, Binutils 2.37 and CFLAGS=C2=A0 -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=3D64=C2=A0 -D_TIME_BITS=3D64

The Kernel pass y2038 but I found an issue with cp:
After analysis, the error occurs when trying to move an empty folder
without all user mode rights.

Here how to reproduce:

# mkdir -p test/test1 folder
# chmod u-w test/test1
# date -s "2040-04-02"
# cp -a test/* folder/
cp: setting permissions for 'folder/test1' : Value too large for defined data type

Note: The folder is copied before the error occurs. The copy works
fine before y2038.


The issue comes from coreutils-9.0/src/cp.c

Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) !=3D 0)

FYI I had a previous issue while calling lstat function from
<sys/stat.h> which is included in lib/lchmod.c. I used /usr/bin/stat
as a workaround.


Keep me in touch if you need more information.

The original mail seems to not have hit the lists, sorry.

The error suggests that the fstatat() done within lchmod()
is using a 32 bit time_t component of the stat structure.
Your kernel is new enough to support the 64 bit equivalent,
but you don't mention glibc. Can you ensure you're using
at least glibc 2.34, which added support for the 64 bit variants.

coreutils is configured by default to enable use
of the 64 bit variants where available, and you've confirmed
this as you say both -D_FILE_OFFSET_BITS=3D64 and -D_TIME_BITS=3D64 are defined.

An strace of the cp command would be useful to confirm the problematic syscall.

thanks,
P=C3=A1draig

Hello,

Thanks for the quick answer.

My glibc is 2.34-9 (2.34-9-g9acab0bba6a5a57323b1f94bf95b21618a9e5aa4).

Strace attached.

Except for the stat.h, I encountered no issue with Kernel, mysql, my application...

I indeed suspect stat.h to use a 32 bits time_t somewhere.

Regards,

--

Arnaud PANA=C3=8FOTIS | Lead Developer Freelance
+33 6 34 82 12 62 | arnaud.panaiotis@gmx.fr

18 place Jean Moulin - 38000 Grenoble
APsudo - www.= panaiotis.fr


3D"Avast

L'absence de virus dans ce courrier =C3=A9lectronique a =C3=A9t=C3=A9 = v=C3=A9rifi=C3=A9e par le logiciel antivirus Avast.
www.avast.com


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[95.44.90.175]) by smtp.googlemail.com with ESMTPSA id h2-20020a05600c414200b0038ec7a4f07esm1967675wmm.33.2022.04.21.05.36.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 21 Apr 2022 05:36:13 -0700 (PDT) Message-ID: Date: Thu, 21 Apr 2022 13:36:12 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:97.0) Gecko/20100101 Thunderbird/97.0 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: =?UTF-8?Q?Arnaud_Pana=c3=afotis?= , 55023@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> From: =?UTF-8?Q?P=c3=a1draig_Brady?= In-Reply-To: <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Score: 0.5 (/) X-Debbugs-Envelope-To: 55023 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.5 (/) On 19/04/2022 16:01, Arnaud Panaïotis wrote: > On 19/04/2022 16:00, Pádraig Brady wrote: >> On 19/04/2022 08:47, Arnaud Panaïotis wrote: >>> Hello, >>> >>> I did not received any feedback from this request right now. Have you >>> made any progress on this subject ? >>> >>> Please let me know the progress for this, or contact me for additional >>> information if needed. >>> >>> I'd like to have a ticket link to follow the advancement of this issue >>> (if possible). I'm available to test a patch if you are able to provide >>> me one. >>> >>> Best regards, >>> >>> On 01/04/2022 15:55, Arnaud Panaïotis wrote: >>>> >>>> Hello, >>>> >>>> I'm working for a client to generate embedded 32-bits Linux Kernel >>>> working after y2038 issue. >>>> >>>> I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC >>>> 11.2.0, Binutils 2.37 and CFLAGS  -D_LARGEFILE_SOURCE >>>> -D_FILE_OFFSET_BITS=64  -D_TIME_BITS=64 >>>> >>>> The Kernel pass y2038 but I found an issue with cp: >>>> After analysis, the error occurs when trying to move an empty folder >>>> without all user mode rights. >>>> >>>> Here how to reproduce: >>>> >>>> # mkdir -p test/test1 folder >>>> # chmod u-w test/test1 >>>> # date -s "2040-04-02" >>>> # cp -a test/* folder/ >>>> cp: setting permissions for 'folder/test1' : Value too large for defined data type >>>> >>>> Note: The folder is copied before the error occurs. The copy works >>>> fine before y2038. >>>> >>>> >>>> The issue comes from coreutils-9.0/src/cp.c >>>> >>>> Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) != 0) >>>> >>>> FYI I had a previous issue while calling lstat function from >>>> which is included in lib/lchmod.c. I used /usr/bin/stat >>>> as a workaround. >>>> >>>> >>>> Keep me in touch if you need more information. >> >> The original mail seems to not have hit the lists, sorry. >> >> The error suggests that the fstatat() done within lchmod() >> is using a 32 bit time_t component of the stat structure. >> Your kernel is new enough to support the 64 bit equivalent, >> but you don't mention glibc. Can you ensure you're using >> at least glibc 2.34, which added support for the 64 bit variants. >> >> coreutils is configured by default to enable use >> of the 64 bit variants where available, and you've confirmed >> this as you say both -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 are defined. >> >> An strace of the cp command would be useful to confirm the problematic syscall. That suggests the kernel (statx) returns fine, but glibc is returning the EOVERFLOW. That suggests fstatat() rather than fstatat64() is being used (inferring that by comparing https://sourceware.org/git/?p=glibc.git;a=history;f=sysdeps/unix/sysv/linux/fstatat.c https://sourceware.org/git/?p=glibc.git;a=history;f=sysdeps/unix/sysv/linux/fstatat64.c) So why is fstatat() being used if compiling with -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 You might confirm what statat is being called with: nm cp | grep U.*statat The redirect from fstatat() in code to the appropriate 64 bit interface should be done with asm redirects and so immune to any undef etc. that gnulib may be doing. So in summary please look at how fstatat() is being referenced on your system (by gnulib). thanks, Pádraig From debbugs-submit-bounces@debbugs.gnu.org Thu Apr 21 10:54:05 2022 Received: (at 55023) by debbugs.gnu.org; 21 Apr 2022 14:54:05 +0000 Received: from localhost ([127.0.0.1]:50648 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nhYC4-0006GU-Ay for submit@debbugs.gnu.org; Thu, 21 Apr 2022 10:54:04 -0400 Received: from mout.gmx.net ([212.227.15.15]:41221) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nhYC2-0006Fv-Ap for 55023@debbugs.gnu.org; Thu, 21 Apr 2022 10:54:03 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1650552835; bh=3Y+Jb8w0CcVo548z2OBjObUFe2F5lzDfKQhV3lbPhUE=; h=X-UI-Sender-Class:Date:Subject:To:References:From:In-Reply-To; b=GDZ2luGCKXI8Ng64dM7AWbjuRxckJLrrtTnHsnSjE13BpJF92ND6YJakZuhylO716 ha7cxuLh2m6yVlL7VETUIobTcCMDnnfDlYImAXYxv5d57JLKkZK1ZAjTFE0tX1nkRi mPKelJgCOSZQfHFqZZjE1rR51NJirU9MkpXAXIFs= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [100.120.23.223] ([51.158.24.47]) by mail.gmx.net (mrgmx005 [212.227.17.184]) with ESMTPSA (Nemesis) id 1MNKm0-1nX1h232IE-00OqAs; Thu, 21 Apr 2022 16:53:55 +0200 Content-Type: multipart/alternative; boundary="------------m70XVLNEKAJArSmHycWG760Y" Message-ID: <141f1d60-ebaf-00eb-f640-3c003ce009a6@gmx.fr> Date: Thu, 21 Apr 2022 16:53:47 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: =?UTF-8?Q?P=c3=a1draig_Brady?= , 55023@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> From: =?UTF-8?Q?Arnaud_Pana=c3=afotis?= In-Reply-To: X-Antivirus: Avast (VPS 220421-0, 21/4/2022), Outbound message X-Antivirus-Status: Clean X-Provags-ID: V03:K1:GzguSLyt84rUfaqlyBQbmw3aIjpoBW5zTBOOw1SQRV56pa/0uga 7Dj4cheSkDGQldmTkCh90Ch0Z/Ybe22GMVJlEz0akEJY1bsSE6208z0NEwwHfmLzkV2pa2E 4WY2Mc7pEQBn2jcyjiDJalXlNfIPYb7JWxmBM/iHdw4cV2K128jdYXWQxCtyBqgSTuLWwSp xSMRRrXIcFt0VbpwEPjSw== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:BQzZXl6TE+E=:oNc7leWvae2WQ1Z0LnvwZg s13RvTGDqDUOI/NJyANUh5n1fh8T+BiihGJoa6uJlTjVVlzV1N+eqpOM13ExIZ5pgUAjmMILM E37f5SkfVM7CzIvbm3Fn+9vuPaNFNeSfiLnqn4194gA3XoJzdJQoHoEnOkpUKepvwLuhTLaau qeHUEUGJ7f4Q4TYHqp7AF+9tm7Pjd2Pp/pACnBKh08yidECyOIlr5aD18/+sR8tUG1ErYbLq3 0Fys+YBX4BcArx8SsZNIfvUBLck8/0Q19yU0ln0kHsNXr73M+9TLMoy0QDvyhHQbCnEVcor54 +tfnmcBHZzlHqt/vDxI2MQc0GN1OqveN5uxdr14Am1fLqP/OXypSqBUh1BkdhWHkJSg2nFye5 hV6e40ADhoGjFzjl8QMzZCu8vEkJa/7AtEzL6rVgP6tHwJjCgvsye2AsEsummG2iyToy019r4 oCmTxEsBytWZnWDS9vsSPzwGjK300loLAbTZIAYZs7dYFtMOospgGrpb7PlVPojqbO8PHgUE5 HKTVdquYjAYaqELupUfC3cdgLWisIJPr9GI7fd3MGN1sV1b9dREWPh9VMQe7Hkvxc8SY/QEtT RXtgjX4Wir4SSSnl8jGuU+W5+r0apjXTw28dHfPLvH6z7n81MHzoBd7Qt+UesrVrt1IOc2xP8 YUokxq+cpyKVPNsjIsyjrYfiClr7fYXX0AV736l5kghZB5VMhre6KAtMiY4SDCF0g0YH/oIXH WfaQXHc0Fx5vMZ9P4fkpYPeSPAE3dmEWn0X3UtcCXKOjtzicDFYPbkhIAwQt7nNLftbPAX2aZ Mp5N93ghzSR6vFjRu+UyomH617Ovk/X8kdaUH7IQa7g2QzxtBJoMCmcXVtWGFPbNnjd6fCqhI v3uMqEgeGzO3htwMGd3XjlIT5jUwXDZvGxXpKqCwmbDSTLAVZVRgiYVx34qlT/M2G0EwBvSNe 5k13/ymvQX70Xc3Bcx+5pXnXxt1oG5NbmzfC63kPZs/ZBkG2ihqQ48GVlccJzvXZJRUovIZ8g qnryb1tpZIeKMA/g5TOWt0Dv6dyl3lDcIgfAesPf8HYbUQlP7evbtBUdMAIjM2PzvYzc5QdGE 3At5RtR0+44QB4= X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 55023 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.7 (-) This is a multi-part message in MIME format. --------------m70XVLNEKAJArSmHycWG760Y Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable On 21/04/2022 14:36, P=C3=A1draig Brady wrote: > On 19/04/2022 16:01, Arnaud Pana=C3=AFotis wrote: >> On 19/04/2022 16:00, P=C3=A1draig Brady wrote: >>> On 19/04/2022 08:47, Arnaud Pana=C3=AFotis wrote: >>>> Hello, >>>> >>>> I did not received any feedback from this request right now. Have you >>>> made any progress on this subject ? >>>> >>>> Please let me know the progress for this, or contact me for additiona= l >>>> information if needed. >>>> >>>> I'd like to have a ticket link to follow the advancement of this issu= e >>>> (if possible). I'm available to test a patch if you are able to >>>> provide >>>> me one. >>>> >>>> Best regards, >>>> >>>> On 01/04/2022 15:55, Arnaud Pana=C3=AFotis wrote: >>>>> >>>>> Hello, >>>>> >>>>> I'm working for a client to generate embedded 32-bits Linux Kernel >>>>> working after y2038 issue. >>>>> >>>>> I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC >>>>> 11.2.0, Binutils 2.37 and CFLAGS=C2=A0 -D_LARGEFILE_SOURCE >>>>> -D_FILE_OFFSET_BITS=3D64=C2=A0 -D_TIME_BITS=3D64 >>>>> >>>>> The Kernel pass y2038 but I found an issue with cp: >>>>> After analysis, the error occurs when trying to move an empty folder >>>>> without all user mode rights. >>>>> >>>>> Here how to reproduce: >>>>> >>>>> # mkdir -p test/test1 folder >>>>> # chmod u-w test/test1 >>>>> # date -s "2040-04-02" >>>>> # cp -a test/* folder/ >>>>> cp: setting permissions for 'folder/test1' : Value too large for >>>>> defined data type >>>>> >>>>> Note: The folder is copied before the error occurs. The copy works >>>>> fine before y2038. >>>>> >>>>> >>>>> The issue comes from coreutils-9.0/src/cp.c >>>>> >>>>> Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) !=3D 0) >>>>> >>>>> FYI I had a previous issue while calling lstat function from >>>>> which is included in lib/lchmod.c. I used /usr/bin/stat >>>>> as a workaround. >>>>> >>>>> >>>>> Keep me in touch if you need more information. >>> >>> The original mail seems to not have hit the lists, sorry. >>> >>> The error suggests that the fstatat() done within lchmod() >>> is using a 32 bit time_t component of the stat structure. >>> Your kernel is new enough to support the 64 bit equivalent, >>> but you don't mention glibc. Can you ensure you're using >>> at least glibc 2.34, which added support for the 64 bit variants. >>> >>> coreutils is configured by default to enable use >>> of the 64 bit variants where available, and you've confirmed >>> this as you say both -D_FILE_OFFSET_BITS=3D64 and -D_TIME_BITS=3D64 ar= e >>> defined. >>> >>> An strace of the cp command would be useful to confirm the >>> problematic syscall. > > That suggests the kernel (statx) returns fine, > but glibc is returning the EOVERFLOW. > That suggests fstatat() rather than fstatat64() is being used > (inferring that by comparing > https://sourceware.org/git/?p=3Dglibc.git;a=3Dhistory;f=3Dsysdeps/unix/s= ysv/linux/fstatat.c > > https://sourceware.org/git/?p=3Dglibc.git;a=3Dhistory;f=3Dsysdeps/unix/s= ysv/linux/fstatat64.c) > > > So why is fstatat() being used if compiling with > -D_FILE_OFFSET_BITS=3D64 and -D_TIME_BITS=3D64 > > You might confirm what statat is being called with: > nm cp | grep U.*statat > > The redirect from fstatat() in code to the appropriate 64 bit interface > should be done with asm redirects and so immune to any undef etc. > that gnulib may be doing. > > So in summary please look at how fstatat() is being referenced > on your system (by gnulib). > > thanks, > P=C3=A1draig Hi, I had to add -D option to nm to avoid "no symbols" error. =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 U __fstatat64_time64@GLIBC_2.3= 4 All fstat, fstatat, lstat and stat are 64_time64 with the same GLIBC. Thanks, =2D- *Arnaud PANA=C3=8FOTIS* | Lead Developer Freelance +33 6 34 82 12 62 | arnaud.panaiotis@gmx.fr > 18 place Jean Moulin - 38000 Grenoble APsudo - www.panaiotis.fr =2D- L'absence de virus dans ce courrier =C3=A9lectronique a =C3=A9t=C3=A9 v=C3= =A9rifi=C3=A9e par le logiciel antivirus Avast. https://www.avast.com/antivirus --------------m70XVLNEKAJArSmHycWG760Y Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable


On 21/04/2022 14:36, P=C3=A1draig Brady wrote:
On 19/04/2022 16:01, Arnaud Pana=C3=AFotis wrote:
On 19/04/2022 16:00, P=C3=A1draig Brady wr= ote:
On 19/04/2022 08:47, Arnaud Pana=C3=AFot= is wrote:
Hello,

I did not received any feedback from this request right now. Have you
made any progress on this subject ?

Please let me know the progress for this, or contact me for additional
information if needed.

I'd like to have a ticket link to follow the advancement of this issue
(if possible). I'm available to test a patch if you are able to provide
me one.

Best regards,

On 01/04/2022 15:55, Arnaud Pana=C3=AFotis wrote:

Hello,

I'm working for a client to generate embedded 32-bits Linux Kernel
working after y2038 issue.

I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC
11.2.0, Binutils 2.37 and CFLAGS=C2=A0 -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=3D64=C2=A0 -D_TIME_BITS=3D64

The Kernel pass y2038 but I found an issue with cp:
After analysis, the error occurs when trying to move an empty folder
without all user mode rights.

Here how to reproduce:

# mkdir -p test/test1 folder
# chmod u-w test/test1
# date -s "2040-04-02"
# cp -a test/* folder/
cp: setting permissions for 'folder/test1' : Value too large for defined data type

Note: The folder is copied before the error occurs. The copy works
fine before y2038.


The issue comes from coreutils-9.0/src/cp.c

Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) !=3D 0)

FYI I had a previous issue while calling lstat function from
<sys/stat.h> which is included in lib/lchmod.c. I used /usr/bin/stat
as a workaround.


Keep me in touch if you need more information.

The original mail seems to not have hit the lists, sorry.

The error suggests that the fstatat() done within lchmod()
is using a 32 bit time_t component of the stat structure.
Your kernel is new enough to support the 64 bit equivalent,
but you don't mention glibc. Can you ensure you're using
at least glibc 2.34, which added support for the 64 bit variants.

coreutils is configured by default to enable use
of the 64 bit variants where available, and you've confirmed
this as you say both -D_FILE_OFFSET_BITS=3D64 and -D_TIME_BITS=3D64 are defined.

An strace of the cp command would be useful to confirm the problematic syscall.

That suggests the kernel (statx) returns fine,
but glibc is returning the EOVERFLOW.
That suggests fstatat() rather than fstatat64() is being used
(inferring that by comparing
https://so= urceware.org/git/?p=3Dglibc.git;a=3Dhistory;f=3Dsysdeps/unix/sysv/linux/fs= tatat.c
https://= sourceware.org/git/?p=3Dglibc.git;a=3Dhistory;f=3Dsysdeps/unix/sysv/linux/= fstatat64.c)

So why is fstatat() being used if compiling with
-D_FILE_OFFSET_BITS=3D64 and -D_TIME_BITS=3D64

You might confirm what statat is being called with:
nm cp | grep U.*statat

The redirect from fstatat() in code to the appropriate 64 bit interface
should be done with asm redirects and so immune to any undef etc.
that gnulib may be doing.

So in summary please look at how fstatat() is being referenced
on your system (by gnulib).

thanks,
P=C3=A1draig

Hi,

I had to add -D option to nm to avoid "no symbols" error.

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 U __fstatat64_time64@G=
LIBC_2.34

All fstat, fstatat, lstat and stat are 64_time64 with the same GLIBC.

Thanks,

--

Arnaud PANA=C3=8FOTIS | Lead Developer Freelance
+33 6 34 82 12 62 | arnaud.panaiotis@gmx.fr

18 place Jean Moulin - 38000 Grenoble
APsudo - www.= panaiotis.fr


3D"Avast

L'absence de virus dans ce courrier =C3=A9lectronique a =C3=A9t=C3=A9 = v=C3=A9rifi=C3=A9e par le logiciel antivirus Avast.
www.avast.com


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[95.44.90.175]) by smtp.googlemail.com with ESMTPSA id j14-20020a05600c190e00b00392910b276csm3106698wmq.27.2022.04.21.08.25.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 21 Apr 2022 08:25:50 -0700 (PDT) Message-ID: <5f2cb9fd-78f0-37aa-633d-54a03bfb6ad2@draigBrady.com> Date: Thu, 21 Apr 2022 16:25:49 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:97.0) Gecko/20100101 Thunderbird/97.0 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: =?UTF-8?Q?Arnaud_Pana=c3=afotis?= , 55023@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> <141f1d60-ebaf-00eb-f640-3c003ce009a6@gmx.fr> From: =?UTF-8?Q?P=c3=a1draig_Brady?= In-Reply-To: <141f1d60-ebaf-00eb-f640-3c003ce009a6@gmx.fr> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Score: 0.5 (/) X-Debbugs-Envelope-To: 55023 Cc: Adhemerval Zanella X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.5 (/) On 21/04/2022 15:53, Arnaud Panaïotis wrote: > > On 21/04/2022 14:36, Pádraig Brady wrote: >> On 19/04/2022 16:01, Arnaud Panaïotis wrote: >>> On 19/04/2022 16:00, Pádraig Brady wrote: >>>> On 19/04/2022 08:47, Arnaud Panaïotis wrote: >>>>> Hello, >>>>> >>>>> I did not received any feedback from this request right now. Have you >>>>> made any progress on this subject ? >>>>> >>>>> Please let me know the progress for this, or contact me for additional >>>>> information if needed. >>>>> >>>>> I'd like to have a ticket link to follow the advancement of this issue >>>>> (if possible). I'm available to test a patch if you are able to provide >>>>> me one. >>>>> >>>>> Best regards, >>>>> >>>>> On 01/04/2022 15:55, Arnaud Panaïotis wrote: >>>>>> >>>>>> Hello, >>>>>> >>>>>> I'm working for a client to generate embedded 32-bits Linux Kernel >>>>>> working after y2038 issue. >>>>>> >>>>>> I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC >>>>>> 11.2.0, Binutils 2.37 and CFLAGS  -D_LARGEFILE_SOURCE >>>>>> -D_FILE_OFFSET_BITS=64  -D_TIME_BITS=64 >>>>>> >>>>>> The Kernel pass y2038 but I found an issue with cp: >>>>>> After analysis, the error occurs when trying to move an empty folder >>>>>> without all user mode rights. >>>>>> >>>>>> Here how to reproduce: >>>>>> >>>>>> # mkdir -p test/test1 folder >>>>>> # chmod u-w test/test1 >>>>>> # date -s "2040-04-02" >>>>>> # cp -a test/* folder/ >>>>>> cp: setting permissions for 'folder/test1' : Value too large for defined data type >>>>>> >>>>>> Note: The folder is copied before the error occurs. The copy works >>>>>> fine before y2038. >>>>>> >>>>>> >>>>>> The issue comes from coreutils-9.0/src/cp.c >>>>>> >>>>>> Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) != 0) >>>>>> >>>>>> FYI I had a previous issue while calling lstat function from >>>>>> which is included in lib/lchmod.c. I used /usr/bin/stat >>>>>> as a workaround. >>>>>> >>>>>> >>>>>> Keep me in touch if you need more information. >>>> >>>> The original mail seems to not have hit the lists, sorry. >>>> >>>> The error suggests that the fstatat() done within lchmod() >>>> is using a 32 bit time_t component of the stat structure. >>>> Your kernel is new enough to support the 64 bit equivalent, >>>> but you don't mention glibc. Can you ensure you're using >>>> at least glibc 2.34, which added support for the 64 bit variants. >>>> >>>> coreutils is configured by default to enable use >>>> of the 64 bit variants where available, and you've confirmed >>>> this as you say both -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 are defined. >>>> >>>> An strace of the cp command would be useful to confirm the problematic syscall. >> >> That suggests the kernel (statx) returns fine, >> but glibc is returning the EOVERFLOW. >> That suggests fstatat() rather than fstatat64() is being used >> (inferring that by comparing >> https://sourceware.org/git/?p=glibc.git;a=history;f=sysdeps/unix/sysv/linux/fstatat.c >> https://sourceware.org/git/?p=glibc.git;a=history;f=sysdeps/unix/sysv/linux/fstatat64.c) >> >> So why is fstatat() being used if compiling with >> -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 >> >> You might confirm what statat is being called with: >> nm cp | grep U.*statat >> >> The redirect from fstatat() in code to the appropriate 64 bit interface >> should be done with asm redirects and so immune to any undef etc. >> that gnulib may be doing. >> >> So in summary please look at how fstatat() is being referenced >> on your system (by gnulib). >> >> thanks, >> Pádraig > > Hi, > > I had to add -D option to nm to avoid "no symbols" error. > >         U __fstatat64_time64@GLIBC_2.34 > > All fstat, fstatat, lstat and stat are 64_time64 with the same GLIBC. That looks correct. So perhaps the EOVERFLOW is within your glibc's fstatat64 implementation? You might get to the issue more quickly by installing debug symbols for your coreutils and/or glibc and using: gdb -tui -args cp rest of cp args thanks, Pádraig. From debbugs-submit-bounces@debbugs.gnu.org Thu Apr 21 16:59:14 2022 Received: (at 55023) by debbugs.gnu.org; 21 Apr 2022 20:59:15 +0000 Received: from localhost ([127.0.0.1]:50999 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nhdtS-0005U5-Gs for submit@debbugs.gnu.org; Thu, 21 Apr 2022 16:59:14 -0400 Received: from mail-wm1-f44.google.com ([209.85.128.44]:39867) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nhdtQ-0005Tp-7J for 55023@debbugs.gnu.org; Thu, 21 Apr 2022 16:59:13 -0400 Received: by mail-wm1-f44.google.com with SMTP id ay11-20020a05600c1e0b00b0038eb92fa965so6663935wmb.4 for <55023@debbugs.gnu.org>; Thu, 21 Apr 2022 13:59:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:message-id:date:mime-version:user-agent:subject :content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=Yn8HASbmPjlkFK6WIUtFaOKgmkeb/Ab9yTSlx2maQw8=; b=pair9B/B/HofoixDefb++EB9QzX1eGb5xx8lEKn1OEBYD622qrIkVjKWlbhcvN4BAw Vy9ghO2Rr1mLcvUSCQXnxARpZLg3qOUou9fPQwqLT6aFTKPBAFUOP8X+It0b+Byfxp87 vQFUCsAHD/JTJaaTGKSuHeVSLwLY8A+QcwIwtxHmxihUcgHTFkRxecitwGG6cTatm0Sh Y1Jr012nncs9i29Vt7VKrvAbipyCuNoEVxAQCzxL5Rjf1UvvnLhtvbKgO+QzVNFL2rox MdqAdU6TrXDtWsFj1RoVvrxzI9scPKq9rYo6OLPe7gBNAfODff5mAYcn3JMPeix2DqDw qPog== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:message-id:date:mime-version:user-agent :subject:content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=Yn8HASbmPjlkFK6WIUtFaOKgmkeb/Ab9yTSlx2maQw8=; b=WdyTiZShbZ26GG7Gcm4ZoZPeFYCnXteps9KNSsb75mBzfAroy7NaDKtPzVUmoua5Q0 oLmHKfS4E6jQ1Xm56Fk7BRXxBDycUEgS3gZy5VxOBkNMUm0n6tiHnstFeQsDMUxeVToq CCTigJ5CP66pa30ckF+Yx7URNo0xIyM0YukRqOUGUyz5ucibAtzgflD4OR+sYFRfdkdn Hu5AdEbhrUSL/8OfNUp1uJYu1rN17BewUzgE5jv/lM3z782obBsBJUivrSm9Hq5+O9aC 5oyH0wPoLs4IMh+SFmfDmpncvzzn0MVoyeRNMeviWxjNv0oqkls/O6BrD4vqp4mJU0tl IT+g== X-Gm-Message-State: AOAM533ppaNI3vOhvd+1ahtp0FPYRz1acMp6RmxjOP1j/PCRuAbCZfCm YisZ4e6k7a/VlizTVRXn/zc= X-Google-Smtp-Source: ABdhPJxQLaB0CFCn5TaxIQ7sKFTAIRwGX0BaQZNQKnk04QOPeXCEziyIOwBTExKPjLELunMjZ2iZJA== X-Received: by 2002:a1c:2b82:0:b0:392:5bfb:a0e1 with SMTP id r124-20020a1c2b82000000b003925bfba0e1mr1073489wmr.36.1650574745995; Thu, 21 Apr 2022 13:59:05 -0700 (PDT) Received: from [192.168.1.9] (95-44-90-175-dynamic.agg2.lod.rsl-rtd.eircom.net. [95.44.90.175]) by smtp.googlemail.com with ESMTPSA id c3-20020a05600c148300b0038ebc8ad740sm3334995wmh.1.2022.04.21.13.59.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 21 Apr 2022 13:59:05 -0700 (PDT) Message-ID: Date: Thu, 21 Apr 2022 21:59:04 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:97.0) Gecko/20100101 Thunderbird/97.0 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: Adhemerval Zanella , =?UTF-8?Q?Arnaud_Pana=c3=afotis?= , 55023@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> <141f1d60-ebaf-00eb-f640-3c003ce009a6@gmx.fr> <5f2cb9fd-78f0-37aa-633d-54a03bfb6ad2@draigBrady.com> <58f2ac6e-8363-d2f5-1282-6646553df183@linaro.org> From: =?UTF-8?Q?P=c3=a1draig_Brady?= In-Reply-To: <58f2ac6e-8363-d2f5-1282-6646553df183@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Score: 0.5 (/) X-Debbugs-Envelope-To: 55023 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.5 (/) On 21/04/2022 18:41, Adhemerval Zanella wrote: > > > On 21/04/2022 12:25, Pádraig Brady wrote: >> On 21/04/2022 15:53, Arnaud Panaïotis wrote: >>> >>> On 21/04/2022 14:36, Pádraig Brady wrote: >>>> On 19/04/2022 16:01, Arnaud Panaïotis wrote: >>>>> On 19/04/2022 16:00, Pádraig Brady wrote: >>>>>> On 19/04/2022 08:47, Arnaud Panaïotis wrote: >>>>>>> Hello, >>>>>>> >>>>>>> I did not received any feedback from this request right now. Have you >>>>>>> made any progress on this subject ? >>>>>>> >>>>>>> Please let me know the progress for this, or contact me for additional >>>>>>> information if needed. >>>>>>> >>>>>>> I'd like to have a ticket link to follow the advancement of this issue >>>>>>> (if possible). I'm available to test a patch if you are able to provide >>>>>>> me one. >>>>>>> >>>>>>> Best regards, >>>>>>> >>>>>>> On 01/04/2022 15:55, Arnaud Panaïotis wrote: >>>>>>>> >>>>>>>> Hello, >>>>>>>> >>>>>>>> I'm working for a client to generate embedded 32-bits Linux Kernel >>>>>>>> working after y2038 issue. >>>>>>>> >>>>>>>> I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC >>>>>>>> 11.2.0, Binutils 2.37 and CFLAGS  -D_LARGEFILE_SOURCE >>>>>>>> -D_FILE_OFFSET_BITS=64  -D_TIME_BITS=64 >>>>>>>> >>>>>>>> The Kernel pass y2038 but I found an issue with cp: >>>>>>>> After analysis, the error occurs when trying to move an empty folder >>>>>>>> without all user mode rights. >>>>>>>> >>>>>>>> Here how to reproduce: >>>>>>>> >>>>>>>> # mkdir -p test/test1 folder >>>>>>>> # chmod u-w test/test1 >>>>>>>> # date -s "2040-04-02" >>>>>>>> # cp -a test/* folder/ >>>>>>>> cp: setting permissions for 'folder/test1' : Value too large for defined data type >>>>>>>> >>>>>>>> Note: The folder is copied before the error occurs. The copy works >>>>>>>> fine before y2038. >>>>>>>> >>>>>>>> >>>>>>>> The issue comes from coreutils-9.0/src/cp.c >>>>>>>> >>>>>>>> Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) != 0) >>>>>>>> >>>>>>>> FYI I had a previous issue while calling lstat function from >>>>>>>> which is included in lib/lchmod.c. I used /usr/bin/stat >>>>>>>> as a workaround. >>>>>>>> >>>>>>>> >>>>>>>> Keep me in touch if you need more information. >>>>>> >>>>>> The original mail seems to not have hit the lists, sorry. >>>>>> >>>>>> The error suggests that the fstatat() done within lchmod() >>>>>> is using a 32 bit time_t component of the stat structure. >>>>>> Your kernel is new enough to support the 64 bit equivalent, >>>>>> but you don't mention glibc. Can you ensure you're using >>>>>> at least glibc 2.34, which added support for the 64 bit variants. >>>>>> >>>>>> coreutils is configured by default to enable use >>>>>> of the 64 bit variants where available, and you've confirmed >>>>>> this as you say both -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 are defined. >>>>>> >>>>>> An strace of the cp command would be useful to confirm the problematic syscall. >>>> >>>> That suggests the kernel (statx) returns fine, >>>> but glibc is returning the EOVERFLOW. >>>> That suggests fstatat() rather than fstatat64() is being used >>>> (inferring that by comparing >>>> https://sourceware.org/git/?p=glibc.git;a=history;f=sysdeps/unix/sysv/linux/fstatat.c >>>> https://sourceware.org/git/?p=glibc.git;a=history;f=sysdeps/unix/sysv/linux/fstatat64.c) >>>> >>>> So why is fstatat() being used if compiling with >>>> -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 >>>> >>>> You might confirm what statat is being called with: >>>> nm cp | grep U.*statat >>>> >>>> The redirect from fstatat() in code to the appropriate 64 bit interface >>>> should be done with asm redirects and so immune to any undef etc. >>>> that gnulib may be doing. >>>> >>>> So in summary please look at how fstatat() is being referenced >>>> on your system (by gnulib). >>>> >>>> thanks, >>>> Pádraig >>> >>> Hi, >>> >>> I had to add -D option to nm to avoid "no symbols" error. >>> >>>          U __fstatat64_time64@GLIBC_2.34 >>> >>> All fstat, fstatat, lstat and stat are 64_time64 with the same GLIBC. >> >> That looks correct. >> >> So perhaps the EOVERFLOW is within your glibc's fstatat64 implementation? >> You might get to the issue more quickly by installing debug symbols for >> your coreutils and/or glibc and using: gdb -tui -args cp rest of cp args >> > > Assuming a default config option (without --enable-kernel) the > _fstatat64_time64 should first try statx and then the old fstatat64 > if statx fails with ENOSYS (on kernel older than 4.11). The EOVERFLOW > only happens for later, assuming kernel does not returns anything > bogus. > > What strace shows in this scenario? strace shows statx() returning non error on this 5.15 kernel From debbugs-submit-bounces@debbugs.gnu.org Fri Apr 22 02:24:43 2022 Received: (at 55023) by debbugs.gnu.org; 22 Apr 2022 06:24:43 +0000 Received: from localhost ([127.0.0.1]:51309 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nhmih-0004EF-1l for submit@debbugs.gnu.org; Fri, 22 Apr 2022 02:24:43 -0400 Received: from mail-ot1-f45.google.com ([209.85.210.45]:46738) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nhaoE-0008AH-SG for 55023@debbugs.gnu.org; Thu, 21 Apr 2022 13:41:39 -0400 Received: by mail-ot1-f45.google.com with SMTP id t6-20020a056830224600b00605491a5cd7so3736761otd.13 for <55023@debbugs.gnu.org>; Thu, 21 Apr 2022 10:41:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=message-id:date:mime-version:user-agent:subject:content-language:to :references:from:in-reply-to:content-transfer-encoding; bh=fYnbXgK5MY8p7FP+ydL8Zx3VWnxeCyUHudEFE6ooots=; b=C+ouamUf7A+AsBVMwrIBwLpJHLGtDdiigbEg88pWR//HLT/lcdQYi07KeCbfLHx6yq 5LG629/f7xOEOkBvBCt3ra9vhnxRc+zwSVjJ5G22TGuyarHWusHMZQHbtu4WnAcNMC5t i9nCZv6ZGhvfEpxJ+l3VXN/d6o/uzJp7wLxaY6PainBoeKpY1K/UzRnbPDtdSiFsGueR Jw/Hr51iHJgst/mb32a7i8UdLXYfLbyzmYUxrI7RLzmWf7Jw+BN2gVG1rGb30eAZBgOW 6UcJWcwqZe5kk9uCBAZoqeNAl01x2sMzrJdmRq1g9PZlCtl2omC6wbmEGt3z+GXssY9g ljCw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=fYnbXgK5MY8p7FP+ydL8Zx3VWnxeCyUHudEFE6ooots=; b=wE71ufwlXJmaB1/RI+2fVDKu9KYMHDzfIFpYxJa47MU0Cz2R8USOlCwFZ7I69qes7r Q3mXgKa298D3FYXbH7ONgKqjscNrCNIGf0TINtpWJKDj6PfDrNHwSh5qhT9LQaFY+JYA DocMdnqC6pa4mHah3TZKHYTUv5y7qMGLy5xEgYG/8DHxITg7nXHwbzM2idyDTGdwX08h 9JUk/Fy1YqPqZDNK9+hRlAsERjqAlPOY9c7thBc1emQFSqI5sPVDd73ajTWz5oxqDDL5 ED7T0hUMclhwh8hU9eOx1+q7K6RiNWbkaKXbt8Sqq5qVABNKtJ4f8sJEH1fxFQN7H9Vo 6Nxw== X-Gm-Message-State: AOAM531sIg1D/m8ZqhpJantd7+VHm3HtJOdi4mueb9fabEyixL823f6f 98yboRWCJ67bL0LD+KWy7uYlJ1VelIgYkg== X-Google-Smtp-Source: ABdhPJwgqpH700T+IEVSokHzuDuRbJV1sLtvQYiP3zRG/xpIxdwpv9kZRAUCLWZk0rYnu09O1uSHmA== X-Received: by 2002:a05:6830:1da4:b0:605:4f50:6aa with SMTP id z4-20020a0568301da400b006054f5006aamr368554oti.59.1650562892973; Thu, 21 Apr 2022 10:41:32 -0700 (PDT) Received: from ?IPV6:2804:431:c7ca:c9d0:4761:3591:6c37:ad26? ([2804:431:c7ca:c9d0:4761:3591:6c37:ad26]) by smtp.gmail.com with ESMTPSA id n35-20020a05687055a300b000e1e2ab91e4sm1248131oao.39.2022.04.21.10.41.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 21 Apr 2022 10:41:32 -0700 (PDT) Message-ID: <58f2ac6e-8363-d2f5-1282-6646553df183@linaro.org> Date: Thu, 21 Apr 2022 14:41:29 -0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: =?UTF-8?Q?P=c3=a1draig_Brady?= , =?UTF-8?Q?Arnaud_Pana=c3=afotis?= , 55023@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> <141f1d60-ebaf-00eb-f640-3c003ce009a6@gmx.fr> <5f2cb9fd-78f0-37aa-633d-54a03bfb6ad2@draigBrady.com> From: Adhemerval Zanella In-Reply-To: <5f2cb9fd-78f0-37aa-633d-54a03bfb6ad2@draigBrady.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 55023 X-Mailman-Approved-At: Fri, 22 Apr 2022 02:24:41 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) On 21/04/2022 12:25, Pádraig Brady wrote: > On 21/04/2022 15:53, Arnaud Panaïotis wrote: >> >> On 21/04/2022 14:36, Pádraig Brady wrote: >>> On 19/04/2022 16:01, Arnaud Panaïotis wrote: >>>> On 19/04/2022 16:00, Pádraig Brady wrote: >>>>> On 19/04/2022 08:47, Arnaud Panaïotis wrote: >>>>>> Hello, >>>>>> >>>>>> I did not received any feedback from this request right now. Have you >>>>>> made any progress on this subject ? >>>>>> >>>>>> Please let me know the progress for this, or contact me for additional >>>>>> information if needed. >>>>>> >>>>>> I'd like to have a ticket link to follow the advancement of this issue >>>>>> (if possible). I'm available to test a patch if you are able to provide >>>>>> me one. >>>>>> >>>>>> Best regards, >>>>>> >>>>>> On 01/04/2022 15:55, Arnaud Panaïotis wrote: >>>>>>> >>>>>>> Hello, >>>>>>> >>>>>>> I'm working for a client to generate embedded 32-bits Linux Kernel >>>>>>> working after y2038 issue. >>>>>>> >>>>>>> I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC >>>>>>> 11.2.0, Binutils 2.37 and CFLAGS  -D_LARGEFILE_SOURCE >>>>>>> -D_FILE_OFFSET_BITS=64  -D_TIME_BITS=64 >>>>>>> >>>>>>> The Kernel pass y2038 but I found an issue with cp: >>>>>>> After analysis, the error occurs when trying to move an empty folder >>>>>>> without all user mode rights. >>>>>>> >>>>>>> Here how to reproduce: >>>>>>> >>>>>>> # mkdir -p test/test1 folder >>>>>>> # chmod u-w test/test1 >>>>>>> # date -s "2040-04-02" >>>>>>> # cp -a test/* folder/ >>>>>>> cp: setting permissions for 'folder/test1' : Value too large for defined data type >>>>>>> >>>>>>> Note: The folder is copied before the error occurs. The copy works >>>>>>> fine before y2038. >>>>>>> >>>>>>> >>>>>>> The issue comes from coreutils-9.0/src/cp.c >>>>>>> >>>>>>> Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) != 0) >>>>>>> >>>>>>> FYI I had a previous issue while calling lstat function from >>>>>>> which is included in lib/lchmod.c. I used /usr/bin/stat >>>>>>> as a workaround. >>>>>>> >>>>>>> >>>>>>> Keep me in touch if you need more information. >>>>> >>>>> The original mail seems to not have hit the lists, sorry. >>>>> >>>>> The error suggests that the fstatat() done within lchmod() >>>>> is using a 32 bit time_t component of the stat structure. >>>>> Your kernel is new enough to support the 64 bit equivalent, >>>>> but you don't mention glibc. Can you ensure you're using >>>>> at least glibc 2.34, which added support for the 64 bit variants. >>>>> >>>>> coreutils is configured by default to enable use >>>>> of the 64 bit variants where available, and you've confirmed >>>>> this as you say both -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 are defined. >>>>> >>>>> An strace of the cp command would be useful to confirm the problematic syscall. >>> >>> That suggests the kernel (statx) returns fine, >>> but glibc is returning the EOVERFLOW. >>> That suggests fstatat() rather than fstatat64() is being used >>> (inferring that by comparing >>> https://sourceware.org/git/?p=glibc.git;a=history;f=sysdeps/unix/sysv/linux/fstatat.c >>> https://sourceware.org/git/?p=glibc.git;a=history;f=sysdeps/unix/sysv/linux/fstatat64.c) >>> >>> So why is fstatat() being used if compiling with >>> -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 >>> >>> You might confirm what statat is being called with: >>> nm cp | grep U.*statat >>> >>> The redirect from fstatat() in code to the appropriate 64 bit interface >>> should be done with asm redirects and so immune to any undef etc. >>> that gnulib may be doing. >>> >>> So in summary please look at how fstatat() is being referenced >>> on your system (by gnulib). >>> >>> thanks, >>> Pádraig >> >> Hi, >> >> I had to add -D option to nm to avoid "no symbols" error. >> >>          U __fstatat64_time64@GLIBC_2.34 >> >> All fstat, fstatat, lstat and stat are 64_time64 with the same GLIBC. > > That looks correct. > > So perhaps the EOVERFLOW is within your glibc's fstatat64 implementation? > You might get to the issue more quickly by installing debug symbols for > your coreutils and/or glibc and using: gdb -tui -args cp rest of cp args > Assuming a default config option (without --enable-kernel) the _fstatat64_time64 should first try statx and then the old fstatat64 if statx fails with ENOSYS (on kernel older than 4.11). The EOVERFLOW only happens for later, assuming kernel does not returns anything bogus. What strace shows in this scenario? From debbugs-submit-bounces@debbugs.gnu.org Tue Apr 26 08:44:52 2022 Received: (at 55023) by debbugs.gnu.org; 26 Apr 2022 12:44:52 +0000 Received: from localhost ([127.0.0.1]:37524 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1njKYl-0002rW-9p for submit@debbugs.gnu.org; Tue, 26 Apr 2022 08:44:52 -0400 Received: from mout.gmx.net ([212.227.17.21]:48627) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1njKYf-0002r0-0Y for 55023@debbugs.gnu.org; Tue, 26 Apr 2022 08:44:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1650977077; bh=DdHbD0T8AtkQ7cU+ysfiV+lbu3iTSbZjvMb9x8hpXP0=; h=X-UI-Sender-Class:Date:Subject:To:References:From:In-Reply-To; b=KBAFAb7PD+2mLXB8H8VLyqokppZI1aVEcKt+gmEYHzW57stdkqFQNZbjGs0z7oTMk RBCRxBwTjMesVHDDviMrEEYB07kJnmyn008drWblX0eKaill7Qyn/Hl5uvZEO3YBXT JdcjMUhRgdTEh1esv+bXunwr6DLyEDiNK3o2PkSM= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [100.120.78.214] ([212.129.33.184]) by mail.gmx.net (mrgmx104 [212.227.17.174]) with ESMTPSA (Nemesis) id 1MKbg4-1nSl6v2J0G-00L0XQ; Tue, 26 Apr 2022 14:44:37 +0200 Content-Type: multipart/alternative; boundary="------------SpXrv9goSB4hJL7lnt2dxeqy" Message-ID: <9be41665-e497-6e64-4c50-e8c70d82b4fe@gmx.fr> Date: Tue, 26 Apr 2022 14:44:37 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: =?UTF-8?Q?P=c3=a1draig_Brady?= , Adhemerval Zanella , 55023@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> <141f1d60-ebaf-00eb-f640-3c003ce009a6@gmx.fr> <5f2cb9fd-78f0-37aa-633d-54a03bfb6ad2@draigBrady.com> <58f2ac6e-8363-d2f5-1282-6646553df183@linaro.org> From: =?UTF-8?Q?Arnaud_Pana=c3=afotis?= In-Reply-To: X-Antivirus: Avast (VPS 220426-0, 26/4/2022), Outbound message X-Antivirus-Status: Clean X-Provags-ID: V03:K1:Btd4xgj69vs1cBOhbQJsPDC3g+nIpTSajd5GxB9HVHVk+b3n00W D4DV5NDDLRp60lDBHzU20Bmg5x+ugirQrKuhHzNe0bxppl4FEFT0NOprY9LKaY9j4oLwEem 8kQ5sOLjprGRJuFiafELiuAYquvyJua6C4ykr4i0hiZqY8HMPoSiWcS4CMR28/rGG9KL87x x58bxuh5q1BMc3/Ydxkiw== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:JV1Dj27/730=:Imab7hIx4jfCRBZ/0yc6iU k/lpo1OWn4eoD7rhPp2J/kxBgKSYYZ5qeM1f6XNi3ehis6KrQNkw/6EUEMEu7TKG0DAL3AIaG dF7fSul7Q9QppjDp3IG3ynUkV3osaUyEarGSIWTLVsG0HQn+EYk2XJXWMpIYPIormjKvwvoV9 5dZByA4fZSFC7lHLtWku7INkdpvqwxMUlfF06CHMb6go3v8U1FmQ9VwC/uorme6RJEp8eJsLn 4uG1gNCjXxscNeDN21WHKwgHsXmfcfnbZkQJh4U9SCHkbwp8uJva4VYJXLpsrIatgZNm5FPNf Lv1t7JkfLs+zqLrJbx0wXH11z8aTWATfQr8/NYEvkkwZSUAgFTeCELr0wtTR9gs089iKWL/B1 k00pPXxRVVsD6a9/51m/6GxKuh929rlyiiIxYSi4S7sLVyhk1OhJ7vkutG3LtVfWTyEuy4jSz tum8erXPQDhh7YuJJsFjYtL3KvZBxK7HmFAqmqhtoeR4gTSRGLGVsTZHFBEM+1tl5aYfFL7yW QjeuF9oaXbVLaOhycp5zv4uaVarPcszGce1hKsWq7B5Tnc7kuGKy5HlDFX3loKHh5rr2I5RD/ mMMqxQYKJ2DGDLhUikWpEqd3hzqQqET0b23KLCGfOl+ie+G8JtIBz7Q8xo/iBC4ASnI5IREpH a5ju000DoYuKvI22wxxFaSTMIVBrbyyrPey/d4yitvXRaHEY+iN2ZM+zCshIJwCdx3zrWDSwH w7OY3YcDIiXQ/18T8JPOO+I6ybutQDEgH8CTuAnHEy6B7cSOMjNCoSzM8NF3qJTXtg/uFhRWK plKAwaS4kbkVc0AnuOwoDjDzRpjGwz4sl9kRCdb7GSKIPG+cHnMQK6kSLWPWkV7edUzunpQMW td3gcxKJWO4eCZ9Yd3Z6JPc9piiyV6cBjxhij82f+NsY9zNj0w0kCvnMV4zxNUpvQJG8G9r90 vYNUZikl/YZuN54Blunv/6gN2g3FMc8XDbVFRSs+cUP2vWM9g5aVV90MU/IcrlXmgkugHNF3x pmXPTpCDk90Wz2idILA0g1gHX9AvSGHgron8KdEHizlFy4TzhO6bF5eV0LjXEU+6xAHkUavK8 idoZjKsBLcx3dI= X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 55023 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.7 (-) This is a multi-part message in MIME format. --------------SpXrv9goSB4hJL7lnt2dxeqy Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable On 21/04/2022 22:59, P=C3=A1draig Brady wrote: > On 21/04/2022 18:41, Adhemerval Zanella wrote: >> >> >> On 21/04/2022 12:25, P=C3=A1draig Brady wrote: >>> On 21/04/2022 15:53, Arnaud Pana=C3=AFotis wrote: >>>> >>>> On 21/04/2022 14:36, P=C3=A1draig Brady wrote: >>>>> On 19/04/2022 16:01, Arnaud Pana=C3=AFotis wrote: >>>>>> On 19/04/2022 16:00, P=C3=A1draig Brady wrote: >>>>>>> On 19/04/2022 08:47, Arnaud Pana=C3=AFotis wrote: >>>>>>>> Hello, >>>>>>>> >>>>>>>> I did not received any feedback from this request right now. >>>>>>>> Have you >>>>>>>> made any progress on this subject ? >>>>>>>> >>>>>>>> Please let me know the progress for this, or contact me for >>>>>>>> additional >>>>>>>> information if needed. >>>>>>>> >>>>>>>> I'd like to have a ticket link to follow the advancement of >>>>>>>> this issue >>>>>>>> (if possible). I'm available to test a patch if you are able to >>>>>>>> provide >>>>>>>> me one. >>>>>>>> >>>>>>>> Best regards, >>>>>>>> >>>>>>>> On 01/04/2022 15:55, Arnaud Pana=C3=AFotis wrote: >>>>>>>>> >>>>>>>>> Hello, >>>>>>>>> >>>>>>>>> I'm working for a client to generate embedded 32-bits Linux >>>>>>>>> Kernel >>>>>>>>> working after y2038 issue. >>>>>>>>> >>>>>>>>> I generated a 5.15 Kernel thought Buildroot with Coreutils >>>>>>>>> 9.0, GCC >>>>>>>>> 11.2.0, Binutils 2.37 and CFLAGS -D_LARGEFILE_SOURCE >>>>>>>>> -D_FILE_OFFSET_BITS=3D64=C2=A0 -D_TIME_BITS=3D64 >>>>>>>>> >>>>>>>>> The Kernel pass y2038 but I found an issue with cp: >>>>>>>>> After analysis, the error occurs when trying to move an empty >>>>>>>>> folder >>>>>>>>> without all user mode rights. >>>>>>>>> >>>>>>>>> Here how to reproduce: >>>>>>>>> >>>>>>>>> # mkdir -p test/test1 folder >>>>>>>>> # chmod u-w test/test1 >>>>>>>>> # date -s "2040-04-02" >>>>>>>>> # cp -a test/* folder/ >>>>>>>>> cp: setting permissions for 'folder/test1' : Value too large >>>>>>>>> for defined data type >>>>>>>>> >>>>>>>>> Note: The folder is copied before the error occurs. The copy >>>>>>>>> works >>>>>>>>> fine before y2038. >>>>>>>>> >>>>>>>>> >>>>>>>>> The issue comes from coreutils-9.0/src/cp.c >>>>>>>>> >>>>>>>>> Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) !=3D 0) >>>>>>>>> >>>>>>>>> FYI I had a previous issue while calling lstat function from >>>>>>>>> which is included in lib/lchmod.c. I used >>>>>>>>> /usr/bin/stat >>>>>>>>> as a workaround. >>>>>>>>> >>>>>>>>> >>>>>>>>> Keep me in touch if you need more information. >>>>>>> >>>>>>> The original mail seems to not have hit the lists, sorry. >>>>>>> >>>>>>> The error suggests that the fstatat() done within lchmod() >>>>>>> is using a 32 bit time_t component of the stat structure. >>>>>>> Your kernel is new enough to support the 64 bit equivalent, >>>>>>> but you don't mention glibc. Can you ensure you're using >>>>>>> at least glibc 2.34, which added support for the 64 bit variants. >>>>>>> >>>>>>> coreutils is configured by default to enable use >>>>>>> of the 64 bit variants where available, and you've confirmed >>>>>>> this as you say both -D_FILE_OFFSET_BITS=3D64 and -D_TIME_BITS=3D6= 4 >>>>>>> are defined. >>>>>>> >>>>>>> An strace of the cp command would be useful to confirm the >>>>>>> problematic syscall. >>>>> >>>>> That suggests the kernel (statx) returns fine, >>>>> but glibc is returning the EOVERFLOW. >>>>> That suggests fstatat() rather than fstatat64() is being used >>>>> (inferring that by comparing >>>>> https://sourceware.org/git/?p=3Dglibc.git;a=3Dhistory;f=3Dsysdeps/un= ix/sysv/linux/fstatat.c >>>>> >>>>> https://sourceware.org/git/?p=3Dglibc.git;a=3Dhistory;f=3Dsysdeps/un= ix/sysv/linux/fstatat64.c) >>>>> >>>>> >>>>> So why is fstatat() being used if compiling with >>>>> -D_FILE_OFFSET_BITS=3D64 and -D_TIME_BITS=3D64 >>>>> >>>>> You might confirm what statat is being called with: >>>>> nm cp | grep U.*statat >>>>> >>>>> The redirect from fstatat() in code to the appropriate 64 bit >>>>> interface >>>>> should be done with asm redirects and so immune to any undef etc. >>>>> that gnulib may be doing. >>>>> >>>>> So in summary please look at how fstatat() is being referenced >>>>> on your system (by gnulib). >>>>> >>>>> thanks, >>>>> P=C3=A1draig >>>> >>>> Hi, >>>> >>>> I had to add -D option to nm to avoid "no symbols" error. >>>> >>>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 U __fstatat64_= time64@GLIBC_2.34 >>>> >>>> All fstat, fstatat, lstat and stat are 64_time64 with the same GLIBC. >>> >>> That looks correct. >>> >>> So perhaps the EOVERFLOW is within your glibc's fstatat64 >>> implementation? >>> You might get to the issue more quickly by installing debug symbols fo= r >>> your coreutils and/or glibc and using: gdb -tui -args cp rest of cp >>> args >>> >> >> Assuming a default config option (without --enable-kernel) the >> _fstatat64_time64 should first try statx and then the old fstatat64 >> if statx fails with ENOSYS (on kernel older than 4.11).=C2=A0 The EOVER= FLOW >> only happens for later, assuming kernel does not returns anything >> bogus. >> >> What strace shows in this scenario? > > strace shows statx() returning non error on this 5.15 kernel Hi, Sorry for the delay, had trouble to generate all requirements within Buildroot (now with gdb+coreutils debugs). I can add glibc debug if needed= . quotearg_buffer_restyled (buffer=3Dbuffer@entry=3D0x41b5a0 "", buffersize=3D, buffersize@entry=3D256, arg=3Darg@entry=3D0x41c5f0 "folder/test1", argsize=3D4294967295, =C2=A0 =C2=A0 quoting_style=3D, flags=3D, quote_these_too=3D, left_quote=3D0x0, right_quote=3D0x0) at lib/quotearg.c:262 (gdb) quotearg_n_options (n=3Dn@entry=3D0, arg=3Darg@entry=3D0x41c5f0 "folder/te= st1", argsize=3Dargsize@entry=3D4294967295, options=3D0xbffff630) at lib/quotearg.c:905 0x00406b46 in copy_reg (src_sb=3D, new_dst=3D, omitted_permissions=3D, dst_mode=3D, x=3D, dst_name=3D, =C2=A0 =C2=A0 src_name=3D) at src/copy.c:1146 /bin/cp: setting permissions for 'folder/test1': Value too large for defin= ed data type I don't have layout src working but layout asm works. (breakpoint at fstatat, then step by step). Let me know if you need more details, I'm available for a shared screen visio if needed (I'm in UTC+2). Best regards, =2D- *Arnaud PANA=C3=8FOTIS* | Lead Developer Freelance +33 6 34 82 12 62 | arnaud.panaiotis@gmx.fr > 18 place Jean Moulin - 38000 Grenoble APsudo - www.panaiotis.fr =2D- L'absence de virus dans ce courrier =C3=A9lectronique a =C3=A9t=C3=A9 v=C3= =A9rifi=C3=A9e par le logiciel antivirus Avast. https://www.avast.com/antivirus --------------SpXrv9goSB4hJL7lnt2dxeqy Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable


On 21/04/2022 22:59, P=C3=A1draig Brady wrote:
On 21/04/2022 18:41, Adhemerval Zanella wrote:


On 21/04/2022 12:25, P=C3=A1draig Brady wrote:
On 21/04/2022 15:53, Arnaud Pana=C3=AFot= is wrote:

On 21/04/2022 14:36, P=C3=A1draig Brady wrote:
On 19/04/2022 16:01, Arnaud Pana=C3=AFotis wrote:
On 19/04/2022 16:00, P=C3=A1draig = Brady wrote:
On 19/04/2022 08:47, Arnaud Pana=C3=AFotis wrote:
Hello,

I did not received any feedback from this request right now. Have you
made any progress on this subject ?

Please let me know the progress for this, or contact me for additional
information if needed.

I'd like to have a ticket link to follow the advancement of this issue
(if possible). I'm available to test a patch if you are able to provide
me one.

Best regards,

On 01/04/2022 15:55, Arnaud Pana=C3=AFotis wrote:

Hello,

I'm working for a client to generate embedded 32-bits Linux Kernel
working after y2038 issue.

I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC
11.2.0, Binutils 2.37 and CFLAGS=C2=A0 -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=3D64=C2=A0 -D_TIME_BITS=3D64

The Kernel pass y2038 but I found an issue with cp:
After analysis, the error occurs when trying to move an empty folder
without all user mode rights.

Here how to reproduce:

# mkdir -p test/test1 folder
# chmod u-w test/test1
# date -s "2040-04-02"
# cp -a test/* folder/
cp: setting permissions for 'folder/test1' : Value too large for defined data type

Note: The folder is copied before the error occurs. The copy works
fine before y2038.


The issue comes from coreutils-9.0/src/cp.c

Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) !=3D 0)

FYI I had a previous issue while calling lstat function from
<sys/stat.h> which is included in lib/lchmod.c. I used /usr/bin/stat
as a workaround.


Keep me in touch if you need more information.

The original mail seems to not have hit the lists, sorry.

The error suggests that the fstatat() done within lchmod()
is using a 32 bit time_t component of the stat structure.
Your kernel is new enough to support the 64 bit equivalent,
but you don't mention glibc. Can you ensure you're using
at least glibc 2.34, which added support for the 64 bit variants.

coreutils is configured by default to enable use
of the 64 bit variants where available, and you've confirmed
this as you say both -D_FILE_OFFSET_BITS=3D64 and -D_TIME_BITS=3D64 are defined.

An strace of the cp command would be useful to confirm the problematic syscall.

That suggests the kernel (statx) returns fine,
but glibc is returning the EOVERFLOW.
That suggests fstatat() rather than fstatat64() is being used
(inferring that by comparing
https://so= urceware.org/git/?p=3Dglibc.git;a=3Dhistory;f=3Dsysdeps/unix/sysv/linux/fs= tatat.c
https://= sourceware.org/git/?p=3Dglibc.git;a=3Dhistory;f=3Dsysdeps/unix/sysv/linux/= fstatat64.c)

So why is fstatat() being used if compiling with
-D_FILE_OFFSET_BITS=3D64 and -D_TIME_BITS=3D64

You might confirm what statat is being called with:
nm cp | grep U.*statat

The redirect from fstatat() in code to the appropriate 64 bit interface
should be done with asm redirects and so immune to any undef etc.
that gnulib may be doing.

So in summary please look at how fstatat() is being referenced
on your system (by gnulib).

thanks,
P=C3=A1draig

Hi,

I had to add -D option to nm to avoid "no symbols" error.

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 U __fst= atat64_time64@GLIBC_2.34

All fstat, fstatat, lstat and stat are 64_time64 with the same GLIBC.

That looks correct.

So perhaps the EOVERFLOW is within your glibc's fstatat64 implementation?
You might get to the issue more quickly by installing debug symbols for
your coreutils and/or glibc and using: gdb -tui -args cp rest of cp args


Assuming a default config option (without --enable-kernel) the
_fstatat64_time64 should first try statx and then the old fstatat64
if statx fails with ENOSYS (on kernel older than 4.11).=C2=A0 The EOVERFLOW
only happens for later, assuming kernel does not returns anything
bogus.

What strace shows in this scenario?

strace shows statx() returning non error on this 5.15 kernel
Hi,

Sorry for the delay, had trouble to generate all requirements within Buildroot (now with gdb+coreutils debugs). I can add glibc debug if needed.

quotearg_buffer_restyled (buffer=3Dbuffer@entry=3D0x41b5a0 <=
slot0> "",
 buffersize=3D<optimized out>, buffersize@entry=3D256,
arg=3Darg@entry=3D0x41c5f0 "folder/test1", argsize=3D4294967295,
=C2=A0 =C2=A0 quoting_style=3D<optimized out>, flags=3D<optimized=
 out>,
quote_these_too=3D<optimized out>, left_quote=3D0x0, right_quote=3D0=
x0)
at lib/quotearg.c:262
(gdb)
quotearg_n_options (n=3Dn@entry=3D0, arg=3Darg@entry=3D0x41c5f0 "folder/te=
st1",
argsize=3Dargsize@entry=3D4294967295, options=3D0xbffff630) at
lib/quotearg.c:905
0x00406b46 in copy_reg (src_sb=3D<optimized out>,
new_dst=3D<optimized out>, omitted_permissions=3D<optimized
out>, dst_mode=3D<optimized out>, x=3D<optimized out>,
dst_name=3D<optimized out>,
=C2=A0 =C2=A0 src_name=3D<optimized out>) at src/copy.c:1146
/bin/cp: setting permissions for 'folder/test1': Value too large for defin=
ed data type
I don't have layout src working but layout asm works.

(breakpoint at fstatat, then step by step).

Let me know if you need more details, I'm available for a shared screen visio if needed (I'm in UTC+2).

Best regards,

--

Arnaud PANA=C3=8FOTIS | Lead Developer Freelance
+33 6 34 82 12 62 | arnaud.panaiotis@gmx.fr

18 place Jean Moulin - 38000 Grenoble
APsudo - www.= panaiotis.fr


3D"Avast

L'absence de virus dans ce courrier =C3=A9lectronique a =C3=A9t=C3=A9 = v=C3=A9rifi=C3=A9e par le logiciel antivirus Avast.
www.avast.com


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[95.44.90.175]) by smtp.googlemail.com with ESMTPSA id r184-20020a1c2bc1000000b00392af6f0ab0sm1935127wmr.18.2022.04.27.09.42.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 27 Apr 2022 09:42:48 -0700 (PDT) Message-ID: <3c7a9382-6d04-3fdf-685d-c5c66f91f024@draigBrady.com> Date: Wed, 27 Apr 2022 17:42:47 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:97.0) Gecko/20100101 Thunderbird/97.0 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: Adhemerval Zanella , =?UTF-8?Q?Arnaud_Pana=c3=afotis?= , 55023-done@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> <141f1d60-ebaf-00eb-f640-3c003ce009a6@gmx.fr> <5f2cb9fd-78f0-37aa-633d-54a03bfb6ad2@draigBrady.com> <58f2ac6e-8363-d2f5-1282-6646553df183@linaro.org> <9be41665-e497-6e64-4c50-e8c70d82b4fe@gmx.fr> <473a02d7-0d1d-4dec-8ca2-18fa32a248a9@linaro.org> From: =?UTF-8?Q?P=c3=a1draig_Brady?= In-Reply-To: <473a02d7-0d1d-4dec-8ca2-18fa32a248a9@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Score: 0.5 (/) X-Debbugs-Envelope-To: 55023-done X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.5 (/) Marking this as done in the coreutils bug tracker, now that this is being tracked in glibc. thank you! On 27/04/2022 13:46, Adhemerval Zanella wrote: >>>>>> On 21/04/2022 14:36, Pádraig Brady wrote: >>>>>>> That suggests the kernel (statx) returns fine, >>>>>>> but glibc's fstatat64 is returning the EOVERFLOW. > It seems to be a glibc missing support indeed. The coreutils issues indicates > that lchmodat failed somehow: > > if (lchmodat (dst_dirfd, dst_relname, dst_mode | S_IRWXU) != 0) > { > error (0, errno, _("setting permissions for %s"), > quoteaf (dst_name)); > goto un_backup; > } > > And lchmodat is a gnulib wrapper for fchmodat: > > CHMODAT_INLINE int > lchmodat (int fd, char const *file, mode_t mode) > { > return fchmodat (fd, file, mode, AT_SYMLINK_NOFOLLOW); > } > > And since Linux fchmodat syscall does not provide a 'flag' argument (to > handle AT_SYMLINK_NOFOLLOW), glibc emulates it through opening a procfs file > descriptor, issuing fstatat to check if it is link (since some kernels and > filesystem it returns in inconsistent results), and then issue chmod. > > However, the glibc internal fstat does not use the 64-bit version, which > then results in EOVERFLOW. > > I have opened https://sourceware.org/bugzilla/show_bug.cgi?id=29097 and I will > fix it upstream and backport to 2.34 and 2.35. 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([2804:431:c7ca:4214:b613:182d:cdde:5f86]) by smtp.gmail.com with ESMTPSA id y6-20020a4a86c6000000b0033a64ed2074sm6640536ooh.19.2022.04.27.05.46.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 27 Apr 2022 05:46:51 -0700 (PDT) Message-ID: <473a02d7-0d1d-4dec-8ca2-18fa32a248a9@linaro.org> Date: Wed, 27 Apr 2022 09:46:48 -0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: =?UTF-8?Q?Arnaud_Pana=c3=afotis?= , =?UTF-8?Q?P=c3=a1draig_Brady?= , 55023@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> <141f1d60-ebaf-00eb-f640-3c003ce009a6@gmx.fr> <5f2cb9fd-78f0-37aa-633d-54a03bfb6ad2@draigBrady.com> <58f2ac6e-8363-d2f5-1282-6646553df183@linaro.org> <9be41665-e497-6e64-4c50-e8c70d82b4fe@gmx.fr> From: Adhemerval Zanella In-Reply-To: <9be41665-e497-6e64-4c50-e8c70d82b4fe@gmx.fr> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 55023 X-Mailman-Approved-At: Wed, 27 Apr 2022 17:42:01 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) On 26/04/2022 09:44, Arnaud Panaïotis wrote: > > On 21/04/2022 22:59, Pádraig Brady wrote: >> On 21/04/2022 18:41, Adhemerval Zanella wrote: >>> >>> >>> On 21/04/2022 12:25, Pádraig Brady wrote: >>>> On 21/04/2022 15:53, Arnaud Panaïotis wrote: >>>>> >>>>> On 21/04/2022 14:36, Pádraig Brady wrote: >>>>>> On 19/04/2022 16:01, Arnaud Panaïotis wrote: >>>>>>> On 19/04/2022 16:00, Pádraig Brady wrote: >>>>>>>> On 19/04/2022 08:47, Arnaud Panaïotis wrote: >>>>>>>>> Hello, >>>>>>>>> >>>>>>>>> I did not received any feedback from this request right now. Have you >>>>>>>>> made any progress on this subject ? >>>>>>>>> >>>>>>>>> Please let me know the progress for this, or contact me for additional >>>>>>>>> information if needed. >>>>>>>>> >>>>>>>>> I'd like to have a ticket link to follow the advancement of this issue >>>>>>>>> (if possible). I'm available to test a patch if you are able to provide >>>>>>>>> me one. >>>>>>>>> >>>>>>>>> Best regards, >>>>>>>>> >>>>>>>>> On 01/04/2022 15:55, Arnaud Panaïotis wrote: >>>>>>>>>> >>>>>>>>>> Hello, >>>>>>>>>> >>>>>>>>>> I'm working for a client to generate embedded 32-bits Linux Kernel >>>>>>>>>> working after y2038 issue. >>>>>>>>>> >>>>>>>>>> I generated a 5.15 Kernel thought Buildroot with Coreutils 9.0, GCC >>>>>>>>>> 11.2.0, Binutils 2.37 and CFLAGS  -D_LARGEFILE_SOURCE >>>>>>>>>> -D_FILE_OFFSET_BITS=64  -D_TIME_BITS=64 >>>>>>>>>> >>>>>>>>>> The Kernel pass y2038 but I found an issue with cp: >>>>>>>>>> After analysis, the error occurs when trying to move an empty folder >>>>>>>>>> without all user mode rights. >>>>>>>>>> >>>>>>>>>> Here how to reproduce: >>>>>>>>>> >>>>>>>>>> # mkdir -p test/test1 folder >>>>>>>>>> # chmod u-w test/test1 >>>>>>>>>> # date -s "2040-04-02" >>>>>>>>>> # cp -a test/* folder/ >>>>>>>>>> cp: setting permissions for 'folder/test1' : Value too large for defined data type >>>>>>>>>> >>>>>>>>>> Note: The folder is copied before the error occurs. The copy works >>>>>>>>>> fine before y2038. >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> The issue comes from coreutils-9.0/src/cp.c >>>>>>>>>> >>>>>>>>>> Line 512 : if (lchmod (dir, stats.st_mode | S_IRWXU) != 0) >>>>>>>>>> >>>>>>>>>> FYI I had a previous issue while calling lstat function from >>>>>>>>>> which is included in lib/lchmod.c. I used /usr/bin/stat >>>>>>>>>> as a workaround. >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> Keep me in touch if you need more information. >>>>>>>> >>>>>>>> The original mail seems to not have hit the lists, sorry. >>>>>>>> >>>>>>>> The error suggests that the fstatat() done within lchmod() >>>>>>>> is using a 32 bit time_t component of the stat structure. >>>>>>>> Your kernel is new enough to support the 64 bit equivalent, >>>>>>>> but you don't mention glibc. Can you ensure you're using >>>>>>>> at least glibc 2.34, which added support for the 64 bit variants. >>>>>>>> >>>>>>>> coreutils is configured by default to enable use >>>>>>>> of the 64 bit variants where available, and you've confirmed >>>>>>>> this as you say both -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 are defined. >>>>>>>> >>>>>>>> An strace of the cp command would be useful to confirm the problematic syscall. >>>>>> >>>>>> That suggests the kernel (statx) returns fine, >>>>>> but glibc is returning the EOVERFLOW. >>>>>> That suggests fstatat() rather than fstatat64() is being used >>>>>> (inferring that by comparing >>>>>> https://sourceware.org/git/?p=glibc.git;a=history;f=sysdeps/unix/sysv/linux/fstatat.c >>>>>> https://sourceware.org/git/?p=glibc.git;a=history;f=sysdeps/unix/sysv/linux/fstatat64.c) >>>>>> >>>>>> So why is fstatat() being used if compiling with >>>>>> -D_FILE_OFFSET_BITS=64 and -D_TIME_BITS=64 >>>>>> >>>>>> You might confirm what statat is being called with: >>>>>> nm cp | grep U.*statat >>>>>> >>>>>> The redirect from fstatat() in code to the appropriate 64 bit interface >>>>>> should be done with asm redirects and so immune to any undef etc. >>>>>> that gnulib may be doing. >>>>>> >>>>>> So in summary please look at how fstatat() is being referenced >>>>>> on your system (by gnulib). >>>>>> >>>>>> thanks, >>>>>> Pádraig >>>>> >>>>> Hi, >>>>> >>>>> I had to add -D option to nm to avoid "no symbols" error. >>>>> >>>>>           U __fstatat64_time64@GLIBC_2.34 >>>>> >>>>> All fstat, fstatat, lstat and stat are 64_time64 with the same GLIBC. >>>> >>>> That looks correct. >>>> >>>> So perhaps the EOVERFLOW is within your glibc's fstatat64 implementation? >>>> You might get to the issue more quickly by installing debug symbols for >>>> your coreutils and/or glibc and using: gdb -tui -args cp rest of cp args >>>> >>> >>> Assuming a default config option (without --enable-kernel) the >>> _fstatat64_time64 should first try statx and then the old fstatat64 >>> if statx fails with ENOSYS (on kernel older than 4.11).  The EOVERFLOW >>> only happens for later, assuming kernel does not returns anything >>> bogus. >>> >>> What strace shows in this scenario? >> >> strace shows statx() returning non error on this 5.15 kernel > Hi, > > Sorry for the delay, had trouble to generate all requirements within Buildroot (now with gdb+coreutils debugs). I can add glibc debug if needed. > > quotearg_buffer_restyled (buffer=buffer@entry=0x41b5a0 "", > buffersize=, buffersize@entry=256, > arg=arg@entry=0x41c5f0 "folder/test1", argsize=4294967295, > >     quoting_style=, flags=, > quote_these_too=, left_quote=0x0, right_quote=0x0) > at lib/quotearg.c:262 > > (gdb) > quotearg_n_options (n=n@entry=0, arg=arg@entry=0x41c5f0 "folder/test1", > argsize=argsize@entry=4294967295, options=0xbffff630) at > lib/quotearg.c:905 > > 0x00406b46 in copy_reg (src_sb=, > new_dst=, omitted_permissions= out>, dst_mode=, x=, > dst_name=, > >     src_name=) at src/copy.c:1146 > > /bin/cp: setting permissions for 'folder/test1': Value too large for defined data type > > I don't have layout src working but layout asm works. > > (breakpoint at fstatat, then step by step). > > Let me know if you need more details, I'm available for a shared screen visio if needed (I'm in UTC+2). It seems to be a glibc missing support indeed. The coreutils issues indicates that lchmodat failed somehow: if (lchmodat (dst_dirfd, dst_relname, dst_mode | S_IRWXU) != 0) { error (0, errno, _("setting permissions for %s"), quoteaf (dst_name)); goto un_backup; } And lchmodat is a gnulib wrapper for fchmodat: CHMODAT_INLINE int lchmodat (int fd, char const *file, mode_t mode) { return fchmodat (fd, file, mode, AT_SYMLINK_NOFOLLOW); } And since Linux fchmodat syscall does not provide a 'flag' argument (to handle AT_SYMLINK_NOFOLLOW), glibc emulates it through opening a procfs file descriptor, issuing fstatat to check if it is link (since some kernels and filesystem it returns in inconsistent results), and then issue chmod. However, the glibc internal fstat does not use the 64-bit version, which then results in EOVERFLOW. I have opened https://sourceware.org/bugzilla/show_bug.cgi?id=29097 and I will fix it upstream and backport to 2.34 and 2.35. From debbugs-submit-bounces@debbugs.gnu.org Thu Apr 28 09:22:21 2022 Received: (at 55023-done) by debbugs.gnu.org; 28 Apr 2022 13:22:21 +0000 Received: from localhost ([127.0.0.1]:45775 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nk469-0004ek-Hi for submit@debbugs.gnu.org; Thu, 28 Apr 2022 09:22:21 -0400 Received: from mail-oi1-f178.google.com ([209.85.167.178]:34340) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nk468-0004eY-0e for 55023-done@debbugs.gnu.org; Thu, 28 Apr 2022 09:22:20 -0400 Received: by mail-oi1-f178.google.com with SMTP id s131so5328536oie.1 for <55023-done@debbugs.gnu.org>; Thu, 28 Apr 2022 06:22:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=message-id:date:mime-version:user-agent:subject:content-language:to :references:from:in-reply-to:content-transfer-encoding; bh=ltMo/TbhbUgzfQ94VFPspigkajTZNvw8uj0eQEdFE3o=; b=LvQJUSNwvx3bvfBoU3tkdd9z+eW8leDy8LT4LlOzFtfcOQzQZ0ZOuvLIlBLSZXhSQS 1+vUZWbjQRG3pv4DA8T5RU96O0EV/bvPlyi9X1XLsqErorCR+qBgSGpq8gNPAaWqPml/ Mgxaureece78Opc9tisE46mEn3MBebBkXB6wOfNDf60MPovD2mDMGOe7Wn13kRVkctmq kp6c87efUCbfBOmFYbJDyJ1agNia9NOOrbPT5SdO2hQHyoljb4SKYAvbbblgT0QNPLhP v0qDANDQ35rvUmPFAaRlzyJdYb9JkXf3di7DR3vzeGM7CqONVKJMblvF3Y4q29+TkXPw 7MUg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=ltMo/TbhbUgzfQ94VFPspigkajTZNvw8uj0eQEdFE3o=; b=XREeDWLi2EwRlXihq/nYVM3JkbI5brXSInjQZKuoZlKEUjjuYgNDP4Z762WiV6NDAl 1s9cxBCrpFBwtPZR8n7H5SIvEAlIxSX3O4O0Rhix6sYDRs8nAjYerZTeRBgP/DZoKle4 jWvpPnjFdlsgnJ9SPkIp2blaI5ovDdHlmDP6d3v0m7y/zLAtYcLyzR/OU1y19IiofEYD 8ryYQjcd5dxwS7qwHmrpXPufzQz6Ps53kiX5bgyyw1Aq3sBpfQVIVmbepinX06HTYUnP W2Ui114V6BF3rLTeVKqCZfqkHYh5Oeu/PqlqykYsz91rffduvj3OhXNWXgk/VHBrKAEV N6Nw== X-Gm-Message-State: AOAM531UdBVV7Ya+QIwnPQ23cIHqpWxyrfsjzBBiMNdaO+98tSuBeACb J9UdUnBaHMjTJYgYKTd5FNLoAQ== X-Google-Smtp-Source: ABdhPJzOYur+zgOAuKir1JlDs+OntOFQgwLLwD1mB3zeJrJbk2USyVkPpubUZXCSr5mNN8Lw5NWSHQ== X-Received: by 2002:aca:bed6:0:b0:322:bd33:7efc with SMTP id o205-20020acabed6000000b00322bd337efcmr20652704oif.95.1651152134114; Thu, 28 Apr 2022 06:22:14 -0700 (PDT) Received: from ?IPV6:2804:431:c7ca:4214:4f75:969e:be61:8b2? ([2804:431:c7ca:4214:4f75:969e:be61:8b2]) by smtp.gmail.com with ESMTPSA id r7-20020a056870878700b000e686d1386csm1855007oam.6.2022.04.28.06.22.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 28 Apr 2022 06:22:13 -0700 (PDT) Message-ID: <42cd1687-a8bd-bac2-eb43-cf41515dfc93@linaro.org> Date: Thu, 28 Apr 2022 10:22:11 -0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: =?UTF-8?Q?P=c3=a1draig_Brady?= , =?UTF-8?Q?Arnaud_Pana=c3=afotis?= , 55023-done@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> <141f1d60-ebaf-00eb-f640-3c003ce009a6@gmx.fr> <5f2cb9fd-78f0-37aa-633d-54a03bfb6ad2@draigBrady.com> <58f2ac6e-8363-d2f5-1282-6646553df183@linaro.org> <9be41665-e497-6e64-4c50-e8c70d82b4fe@gmx.fr> <473a02d7-0d1d-4dec-8ca2-18fa32a248a9@linaro.org> <3c7a9382-6d04-3fdf-685d-c5c66f91f024@draigBrady.com> From: Adhemerval Zanella In-Reply-To: <3c7a9382-6d04-3fdf-685d-c5c66f91f024@draigBrady.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 55023-done X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) On 27/04/2022 13:42, Pádraig Brady wrote: > Marking this as done in the coreutils bug tracker, > now that this is being tracked in glibc. > > thank you! > > On 27/04/2022 13:46, Adhemerval Zanella wrote: > >>>>>>> On 21/04/2022 14:36, Pádraig Brady wrote: >>>>>>>> That suggests the kernel (statx) returns fine, >>>>>>>> but glibc's fstatat64 is returning the EOVERFLOW. > >> It seems to be a glibc missing support indeed.  The coreutils issues indicates >> that lchmodat failed somehow: >> >>                if (lchmodat (dst_dirfd, dst_relname, dst_mode | S_IRWXU) != 0) >>                  { >>                    error (0, errno, _("setting permissions for %s"), >>                           quoteaf (dst_name)); >>                    goto un_backup; >>                  } >> >> And lchmodat is a gnulib wrapper for fchmodat: >> >> CHMODAT_INLINE int >> lchmodat (int fd, char const *file, mode_t mode) >> { >>    return fchmodat (fd, file, mode, AT_SYMLINK_NOFOLLOW); >> } >> >> And since Linux fchmodat syscall does not provide a 'flag' argument (to >> handle AT_SYMLINK_NOFOLLOW), glibc emulates it through opening a procfs file >> descriptor, issuing fstatat to check if it is link (since some kernels and >> filesystem it returns in inconsistent results), and then issue chmod. >> >> However, the glibc internal fstat does not use the 64-bit version, which >> then results in EOVERFLOW. >> >> I have opened https://sourceware.org/bugzilla/show_bug.cgi?id=29097 and I will >> fix it upstream and backport to 2.34 and 2.35. > It is now fixed on master, 2.35, and 2.34 branches. From debbugs-submit-bounces@debbugs.gnu.org Thu Apr 28 19:57:05 2022 Received: (at 55023) by debbugs.gnu.org; 28 Apr 2022 23:57:05 +0000 Received: from localhost ([127.0.0.1]:50323 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nkE0P-0007Vg-4B for submit@debbugs.gnu.org; Thu, 28 Apr 2022 19:57:05 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:47680) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1nkE0N-0007VC-Gz for 55023@debbugs.gnu.org; Thu, 28 Apr 2022 19:57:04 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 6AAF6160052; Thu, 28 Apr 2022 16:56:57 -0700 (PDT) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id 970Tw118VONW; Thu, 28 Apr 2022 16:56:56 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id B9A6F16005C; Thu, 28 Apr 2022 16:56:56 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id 7dFDIsqlLe9i; Thu, 28 Apr 2022 16:56:56 -0700 (PDT) Received: from [131.179.64.200] (Penguin.CS.UCLA.EDU [131.179.64.200]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 96721160052; Thu, 28 Apr 2022 16:56:56 -0700 (PDT) Message-ID: <98a11b08-8aea-e310-d5d4-684ebfde39ad@cs.ucla.edu> Date: Thu, 28 Apr 2022 16:56:56 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: 55023@debbugs.gnu.org, P@draigBrady.com, arnaud.panaiotis@gmx.fr References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> <141f1d60-ebaf-00eb-f640-3c003ce009a6@gmx.fr> <5f2cb9fd-78f0-37aa-633d-54a03bfb6ad2@draigBrady.com> <58f2ac6e-8363-d2f5-1282-6646553df183@linaro.org> <9be41665-e497-6e64-4c50-e8c70d82b4fe@gmx.fr> <473a02d7-0d1d-4dec-8ca2-18fa32a248a9@linaro.org> <3c7a9382-6d04-3fdf-685d-c5c66f91f024@draigBrady.com> From: Paul Eggert Organization: UCLA Computer Science Department In-Reply-To: <3c7a9382-6d04-3fdf-685d-c5c66f91f024@draigBrady.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 55023 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) On 4/27/22 09:42, P=C3=A1draig Brady wrote: > Marking this as done in the coreutils bug tracker, > now that this is being tracked in glibc. This could also be worked around Gnulib for the benefit of 32-bit apps=20 running with unpatched glibc 2.34 and 2.35, or glibc older than 2.34.=20 Not sure it's worth the trouble, though, as the fixed glibc should be=20 universal pretty much everywhere before the year 2038 rolls around. 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[95.44.90.175]) by smtp.googlemail.com with ESMTPSA id q1-20020a1c4301000000b00394145534bbsm2705781wma.9.2022.04.29.05.56.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 29 Apr 2022 05:56:25 -0700 (PDT) Message-ID: Date: Fri, 29 Apr 2022 13:56:24 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:97.0) Gecko/20100101 Thunderbird/97.0 Subject: Re: bug#55023: Issue with CP empty folder after y2038 on 32-bits Kernel Content-Language: en-US To: Paul Eggert , 55023@debbugs.gnu.org References: <49c4a8c0-8e00-5f65-fe55-7ce2f6dae79c@gmx.fr> <5e6094ba-0ded-3497-9b44-1be0e0f2bba2@gmx.fr> <2eaf32db-49ba-e539-d73d-429e8dc2658c@draigBrady.com> <5b034b25-0c69-9843-3862-8f937b810aa6@gmx.fr> <141f1d60-ebaf-00eb-f640-3c003ce009a6@gmx.fr> <5f2cb9fd-78f0-37aa-633d-54a03bfb6ad2@draigBrady.com> <58f2ac6e-8363-d2f5-1282-6646553df183@linaro.org> <9be41665-e497-6e64-4c50-e8c70d82b4fe@gmx.fr> <473a02d7-0d1d-4dec-8ca2-18fa32a248a9@linaro.org> <3c7a9382-6d04-3fdf-685d-c5c66f91f024@draigBrady.com> <98a11b08-8aea-e310-d5d4-684ebfde39ad@cs.ucla.edu> From: =?UTF-8?Q?P=c3=a1draig_Brady?= In-Reply-To: <98a11b08-8aea-e310-d5d4-684ebfde39ad@cs.ucla.edu> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Score: 0.5 (/) X-Debbugs-Envelope-To: 55023 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.5 (/) On 29/04/2022 00:56, Paul Eggert wrote: > On 4/27/22 09:42, Pádraig Brady wrote: >> Marking this as done in the coreutils bug tracker, >> now that this is being tracked in glibc. > > This could also be worked around Gnulib for the benefit of 32-bit apps > running with unpatched glibc 2.34 and 2.35, or glibc older than 2.34. > Not sure it's worth the trouble, though, as the fixed glibc should be > universal pretty much everywhere before the year 2038 rolls around. Yes I was thinking about that, and also thought it not necessary to deal with in gnulib. thanks, Pádraig. From unknown Thu Aug 14 17:30:29 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Sat, 28 May 2022 11:24:05 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator