From debbugs-submit-bounces@debbugs.gnu.org Mon Apr 06 16:54:56 2020 Received: (at submit) by debbugs.gnu.org; 6 Apr 2020 20:54:56 +0000 Received: from localhost ([127.0.0.1]:49298 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jLYlk-0004kt-9z for submit@debbugs.gnu.org; Mon, 06 Apr 2020 16:54:56 -0400 Received: from lists.gnu.org ([209.51.188.17]:43390) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jLYli-0004kh-FA for submit@debbugs.gnu.org; Mon, 06 Apr 2020 16:54:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34277) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jLYlh-0003fQ-Ej for bug-grep@gnu.org; Mon, 06 Apr 2020 16:54:54 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM, URIBL_BLOCKED autolearn=disabled version=3.3.2 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jLYlf-00086c-GB for bug-grep@gnu.org; Mon, 06 Apr 2020 16:54:53 -0400 Received: from mail-oi1-x232.google.com ([2607:f8b0:4864:20::232]:44893) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1jLYlf-00086L-Bl for bug-grep@gnu.org; Mon, 06 Apr 2020 16:54:51 -0400 Received: by mail-oi1-x232.google.com with SMTP id r21so5961988oij.11 for ; Mon, 06 Apr 2020 13:54:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=to:from:subject:message-id:date:user-agent:mime-version :content-language:content-transfer-encoding; bh=xzYp1lEW5NP+sZtBohndbK/gf8MX2Jzlr6WAgXc/TNU=; b=K/EuZqUqpu4N3LBgHhDX8vMABe+H9j2jTv7/d04XfWp+X1/ThEyPN6R3vFx5wWyjlt enDcVF0qpbxj91oZX2BaYIGap+5wveqJyLdjRKUd8EWo3i/z2t9vOsgXA12je9fiOdJ4 AORQm6wVWy22/fU5WOAt4Xxkct8vjFv2jInUjd67jsL8vBrIAfgAzAS9+cFDa5S0ZY9/ u9iHxDpFJ3fL6z65GlXErg5IiYLv6sW0ztp5GBnMYQ48VbYDs7SFnnW0gcmQHcPtOsV9 uatuJvP86+wxujl/U3acy6orjuEA9xPwJX5Wd9cgFVSwv0FrvpPLYy+LAvfwPFRz2YB+ crGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-language:content-transfer-encoding; bh=xzYp1lEW5NP+sZtBohndbK/gf8MX2Jzlr6WAgXc/TNU=; b=PX5tpcMND4asz++TCau2nYmk4OOQUHtP+5jV3eIS9FvMFeObEn0ouukqKRGrtsZLXU 0QTKjmut6upldM8RzsuK+C0gKvHT2rmSKgqEWkNuQOSWjPiLtDSt9twT2Vk3/MRv0Cfh Mk+aaVaKl6juQ8hthyGDTQ1jcy1h6+8sF+NIdzMt+BKQlxsFEk8kdIesXON5DGA2Gr/S eNn89iuN+vZBn9ppknJgKOj/fYS8mBZvROWgEW7PrjhLo1QdqWsYqNjbs5qNWS+GyRoR Q82sfQQ0N9QL4f5N4b8AXWaU/Eo5YmqRPdq6dLbPW0GNiI1BD91oQ5W3dEQkerowq6WU XP4A== X-Gm-Message-State: AGi0Pub/OVQ3bdzcxF3th7ycsrNCLfTcFWjM/Dr3cSnYHjs6sRsgvs84 QA6kYTj7IzpnY+QpYOML6Ve4lj1c X-Google-Smtp-Source: APiQypKX0WLj9eSjJ3DF0Uf8QbunvLRDvWIAPl+UnOZ+yGelwpFqQK9CYtULTh9DKyQtGsSwujz5og== X-Received: by 2002:aca:574a:: with SMTP id l71mr1063588oib.148.1586206490118; Mon, 06 Apr 2020 13:54:50 -0700 (PDT) Received: from [192.168.0.91] (cpe-70-123-227-116.satx.res.rr.com. [70.123.227.116]) by smtp.gmail.com with ESMTPSA id 74sm4761229oti.9.2020.04.06.13.54.49 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 06 Apr 2020 13:54:49 -0700 (PDT) To: bug-grep@gnu.org From: Bruce Dubbs Subject: Segfault with grep-3.4 and pcre-8.44 Message-ID: <74c8926e-47c3-fa39-b1fc-eba361936e43@gmail.com> Date: Mon, 6 Apr 2020 15:54:47 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::232 X-Spam-Score: 2.3 (++) X-Spam-Report: Spam detection software, running on the system "debbugs.gnu.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: In linuxfromscratch we normally build grep without pcre using: ./configure --prefix=/usr --bindir=/bin make It works fine. Content analysis details: (2.3 points, 10.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 URIBL_BLOCKED ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [URIs: linuxfromscratch.org] -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [209.51.188.17 listed in list.dnswl.org] 1.0 SPF_SOFTFAIL SPF: sender does not match SPF record (softfail) 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (bruce.dubbs[at]gmail.com) 2.0 SPOOFED_FREEMAIL No description available. X-Debbugs-Envelope-To: submit 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: -0.7 (/) In linuxfromscratch we normally build grep without pcre using: ./configure --prefix=/usr --bindir=/bin make It works fine. Later after pcre is installed users can rebuild grep with exactly the same instructions, but with grep-3.4, I get a segfault with grep --help and all other command line entries. Adding --disable-perl-regexp restores grep but of course removes pcre regex capabilities. I went back and built grep-3.3 with pcre and everything worked with the same pcre library as above. I did some preliminary gdb testing and got: Reading symbols from src/grep... (gdb) run --help Starting program: /build/grep/grep-3.4/src/grep --help Program received signal SIGSEGV, Segmentation fault. 0x000000000041cc03 in __libc_start_main () (gdb) bt #0 0x000000000041cc03 in __libc_start_main () #1 0x000000000040715a in _start () at ../sysdeps/x86_64/start.S:120 We are using glibc-2.31 and gcc-9.2.0 if that makes a difference. -- Bruce Dubbs linuxfromscratch.org From debbugs-submit-bounces@debbugs.gnu.org Mon Apr 06 19:48:24 2020 Received: (at 40477) by debbugs.gnu.org; 6 Apr 2020 23:48:24 +0000 Received: from localhost ([127.0.0.1]:49371 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jLbTb-0007eG-MP for submit@debbugs.gnu.org; Mon, 06 Apr 2020 19:48:23 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:54028) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jLbTZ-0007di-9X for 40477@debbugs.gnu.org; Mon, 06 Apr 2020 19:48:22 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 360C0160065; Mon, 6 Apr 2020 16:48:15 -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 OtLatgoPyiH4; Mon, 6 Apr 2020 16:48:14 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 8CF7B1600CD; Mon, 6 Apr 2020 16:48:14 -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 35oDDgvu9CbS; Mon, 6 Apr 2020 16:48:14 -0700 (PDT) Received: from [192.168.1.9] (cpe-23-242-74-103.socal.res.rr.com [23.242.74.103]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 60422160065; Mon, 6 Apr 2020 16:48:14 -0700 (PDT) Subject: Re: bug#40477: Segfault with grep-3.4 and pcre-8.44 To: Bruce Dubbs References: <74c8926e-47c3-fa39-b1fc-eba361936e43@gmail.com> From: Paul Eggert Organization: UCLA Computer Science Department Message-ID: <2a36850c-15c8-6745-c0e2-2587327d5214@cs.ucla.edu> Date: Mon, 6 Apr 2020 16:48:13 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <74c8926e-47c3-fa39-b1fc-eba361936e43@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 40477 Cc: 40477@debbugs.gnu.org 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 4/6/20 1:54 PM, Bruce Dubbs wrote: >=20 > Program received signal SIGSEGV, Segmentation fault. > 0x000000000041cc03 in __libc_start_main () > (gdb) bt > #0=C2=A0 0x000000000041cc03 in __libc_start_main () > #1=C2=A0 0x000000000040715a in _start () at ../sysdeps/x86_64/start.S:1= 20 You'll have to debug this one, as grep's main function hasn't even starte= d yet=20 so the failure cannot be due to anything in grep's source code. Probably = you=20 linked it the wrong way somehow. From debbugs-submit-bounces@debbugs.gnu.org Mon Apr 06 23:31:45 2020 Received: (at 40477) by debbugs.gnu.org; 7 Apr 2020 03:31:45 +0000 Received: from localhost ([127.0.0.1]:49420 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jLexk-0002xj-ST for submit@debbugs.gnu.org; Mon, 06 Apr 2020 23:31:45 -0400 Received: from mail-ot1-f66.google.com ([209.85.210.66]:40537) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jLexh-0002xB-Og for 40477@debbugs.gnu.org; Mon, 06 Apr 2020 23:31:43 -0400 Received: by mail-ot1-f66.google.com with SMTP id r19so1673545otn.7 for <40477@debbugs.gnu.org>; Mon, 06 Apr 2020 20:31:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=8g8Ig9GUVaA65Y6S1d1a3gK/nUStCTNwz+WpMde+Mkg=; b=o1dz2pBmjaR4gZbf86Qer+jJanKJuM5U5iI34FtarNIGDnm/857GUfpyA+9KIqkHX5 T3vccpA0qM1PU0mhtacEidyZEua/qmGltL5Wvnyn/M8yZ4/R6/rV9nTIBYtLNS30TLK3 LPMvi6orpLFEpQHmsh2JWNYD7eP1kScZBbXnygz+C2BiZG+HZLzV3wDMziBCAm4CBDe/ Tunq0jSyaC4CaXY0ZCPuHM6Slqx/EYfMPOzYzttieaXAfqasGO6msu2ya12En6hZkaAb NpW4JNUZ/qeKeQwYEM+ZOtevXre8DNKRm30E941EHRpnNy34MrS0rTqCGHukzfQw0aqH yURA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=8g8Ig9GUVaA65Y6S1d1a3gK/nUStCTNwz+WpMde+Mkg=; b=IexNcRlN7mEWcZ5H+QZl92CDxBV2KhsOhDo7bJyLLZlZc97tstJ+LimvA1dSCh3OY+ wmPPzPiVd+JdySTuXLKZ3fbH25XmzQUr6KhGiOPVTN0P+C8dpXk4WbMj3oyucFRlNL6+ nU+O/7XItddvrpTuMYREQf25PmrhK83WXai1mey+9QHCtTIwZyhZrf4i12/GkoD20fnt cZ7GI3BLl0feRHm3LC7t3N0ZH2QMbWYV5C23Zd4Ni3WcU0Asra+652zIVkVoJQ/RUv2E lFAp7v1PmN/R6n46JPMeDGOTlVV8orzQAENFPUhulzELoczrRc8vxaUYV4uytyxnxH8D 77lQ== X-Gm-Message-State: AGi0PuZozMHB4fnBNFcRte+fOJCVXc52DpDCh8cfWLauQ29a8a80NHOD xCuAMNudvwRn4dmtPTXFma+DMLgG X-Google-Smtp-Source: APiQypLzPhKbjhIAvDCoPT9Kqv1/uA5qI7Kw+2XxQ1bb6XN5wleLlYMEDoS94SHNyQF/vQL4lx3Yaw== X-Received: by 2002:a9d:63c9:: with SMTP id e9mr20545121otl.65.1586230295843; Mon, 06 Apr 2020 20:31:35 -0700 (PDT) Received: from [192.168.0.91] (cpe-70-123-227-116.satx.res.rr.com. [70.123.227.116]) by smtp.gmail.com with ESMTPSA id d84sm5010853oig.33.2020.04.06.20.31.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 06 Apr 2020 20:31:35 -0700 (PDT) Subject: Re: bug#40477: Segfault with grep-3.4 and pcre-8.44 To: Paul Eggert References: <74c8926e-47c3-fa39-b1fc-eba361936e43@gmail.com> <2a36850c-15c8-6745-c0e2-2587327d5214@cs.ucla.edu> From: Bruce Dubbs Message-ID: <5b9a690a-35e3-266d-3e49-d98ab2a9bbd9@gmail.com> Date: Mon, 6 Apr 2020 22:31:33 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <2a36850c-15c8-6745-c0e2-2587327d5214@cs.ucla.edu> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 40477 Cc: 40477@debbugs.gnu.org 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 4/6/20 6:48 PM, Paul Eggert wrote: > On 4/6/20 1:54 PM, Bruce Dubbs wrote: >> >> Program received signal SIGSEGV, Segmentation fault. >> 0x000000000041cc03 in __libc_start_main () >> (gdb) bt >> #0  0x000000000041cc03 in __libc_start_main () >> #1  0x000000000040715a in _start () at ../sysdeps/x86_64/start.S:120 > > You'll have to debug this one, as grep's main function hasn't even > started yet so the failure cannot be due to anything in grep's source > code. Probably you linked it the wrong way somehow. It's definitely a problem specific to my system. I tried it on another very similar system with the same gcc, glibc, and build instructions and it worked perfectly. Upon more investigation my problem may be to be due to libsigsegv-2.12. If I keep that from being linked into grep it is fine. I'm passing on this as info. I don't think it is a grep issue, but in case you run into it again I offer the following: For grep-3.3 (working): [ /build/grep33/grep-3.3 ]$ ldd src/grep linux-vdso.so.1 (0x00007ffc2858b000) libpcre.so.1 => /lib/libpcre.so.1 (0x00007fa569942000) libsigsegv.so.2 => /usr/lib/libsigsegv.so.2 (0x00007fa56993c000) libc.so.6 => /lib/libc.so.6 (0x00007fa569779000) /lib64/ld-linux-x86-64.so.2 (0x00007fa5699b8000) For grep-3.4 (not working): [ /build/grep/grep-3.4 ]$ ldd src/grep linux-vdso.so.1 (0x00007ffded180000) libpcre.so.1 => /lib/libpcre.so.1 (0x00007f38dd95e000) libsigsegv.so.2 => /usr/lib/libsigsegv.so.2 (0x00007f38dd958000) libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x00007f38dd93e000) libc.so.6 => /lib/libc.so.6 (0x00007f38dd77b000) /lib64/ld-linux-x86-64.so.2 (0x00007f38dd9d4000) I have no idea why my system is adding libgcc_s.so.1 into the build. I did note that the link line included /usr/lib/libc.a. Removing that fixed my problem. -- Bruce From debbugs-submit-bounces@debbugs.gnu.org Mon Sep 21 15:20:07 2020 Received: (at 40477-done) by debbugs.gnu.org; 21 Sep 2020 19:20:07 +0000 Received: from localhost ([127.0.0.1]:56288 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kKRM7-0001m3-Gx for submit@debbugs.gnu.org; Mon, 21 Sep 2020 15:20:07 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:50256) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kKRM5-0001lP-6e for 40477-done@debbugs.gnu.org; Mon, 21 Sep 2020 15:20:06 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 5F9B31600FF; Mon, 21 Sep 2020 12:19:58 -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 wG86yH6VOYhe; Mon, 21 Sep 2020 12:19:57 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 910221600FC; Mon, 21 Sep 2020 12:19:57 -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 icy7nimEPgC1; Mon, 21 Sep 2020 12:19:57 -0700 (PDT) Received: from [192.168.1.9] (cpe-23-243-218-95.socal.res.rr.com [23.243.218.95]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 6A5CB1600F1; Mon, 21 Sep 2020 12:19:57 -0700 (PDT) Subject: Re: bug#40477: Segfault with grep-3.4 and pcre-8.44 To: Bruce Dubbs References: <74c8926e-47c3-fa39-b1fc-eba361936e43@gmail.com> <2a36850c-15c8-6745-c0e2-2587327d5214@cs.ucla.edu> <5b9a690a-35e3-266d-3e49-d98ab2a9bbd9@gmail.com> From: Paul Eggert Autocrypt: addr=eggert@cs.ucla.edu; prefer-encrypt=mutual; keydata= LS0tLS1CRUdJTiBQR1AgUFVCTElDIEtFWSBCTE9DSy0tLS0tCgptUUlOQkV5QWNtUUJFQURB QXlIMnhvVHU3cHBHNUQzYThGTVpFb243NGRDdmM0K3ExWEEySjJ0QnkycHdhVHFmCmhweHhk 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Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) On 4/6/20 8:31 PM, Bruce Dubbs wrote: > Upon more investigation my problem may be to be due to libsigsegv-2.12. If I > keep that from being linked into grep it is fine. This appears to be the Gnulib/libsigsegv problem that Bruno Haible fixed yesterday: https://lists.gnu.org/r/bug-gnulib/2020-09/msg00101.html so I'm closing the grep bug report. From unknown Sat Jun 14 19:17:08 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Tue, 20 Oct 2020 11:24:13 +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