From unknown Tue Jun 17 01:49:07 2025 X-Loop: help-debbugs@gnu.org Subject: bug#47708: 28.0.50; SIGSYS test failure with seccomp-filter.bpf Resent-From: "Basil L. Contovounesios" Original-Sender: "Debbugs-submit" Resent-CC: p.stephani2@gmail.com, bug-gnu-emacs@gnu.org Resent-Date: Sun, 11 Apr 2021 13:19:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 47708 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: 47708@debbugs.gnu.org Cc: Philipp Stephani X-Debbugs-Original-To: bug-gnu-emacs@gnu.org X-Debbugs-Original-Xcc: Philipp Stephani Received: via spool by submit@debbugs.gnu.org id=B.161814708515975 (code B ref -1); Sun, 11 Apr 2021 13:19:01 +0000 Received: (at submit) by debbugs.gnu.org; 11 Apr 2021 13:18:05 +0000 Received: from localhost ([127.0.0.1]:54151 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVZyW-00049X-8n for submit@debbugs.gnu.org; Sun, 11 Apr 2021 09:18:04 -0400 Received: from lists.gnu.org ([209.51.188.17]:45926) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVZyU-00049P-60 for submit@debbugs.gnu.org; Sun, 11 Apr 2021 09:18:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58422) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lVZyT-0003qP-Oq for bug-gnu-emacs@gnu.org; Sun, 11 Apr 2021 09:18:02 -0400 Received: from mail-wr1-x429.google.com ([2a00:1450:4864:20::429]:36408) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lVZyR-0007E2-DH for bug-gnu-emacs@gnu.org; Sun, 11 Apr 2021 09:18:01 -0400 Received: by mail-wr1-x429.google.com with SMTP id x15so10162061wrq.3 for ; Sun, 11 Apr 2021 06:17:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tcd.ie; s=google21; h=from:to:subject:date:message-id:mime-version; bh=L2Jqv4vdfktnNSOxZ/AF55zYz8qGFAJk3b8xT1MoCeM=; b=FC30HXJ4kzW3YnWZGPDWWqTnexlhemeo1Mv0/DK64Uj/CzYnysONeGyTrlg8rqo6fD QiCsKxrAa07cY3Q4q60A7OvhGTMTZ5WBxHEdhuW6mmQKCRpTGNXJDzOQfLncGMpMoBeG rFJ6CppxP/afULb4fByR1Uf6TuKtRtVlwR45NBAOvMcgoYynfWmP9LI6aOwUDbDN3sgY KfNcnc3SmLpJqltBzVeZMR4ODtYyVf+KMgKy/QFXcO6WrIzKh3OYqR7s8pVeSwSWtXY6 kPW5Q+Wov1dFw8twGuRR3LwhouJLxhiqzWXK3yG/UL+bm3UQVzhHP4mn6LOJRRyv2IPs cw5g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version; bh=L2Jqv4vdfktnNSOxZ/AF55zYz8qGFAJk3b8xT1MoCeM=; b=fGSo9XznKcLo/zIyQID0qVzAJmJAOEebSu3MNtMh6far0/FblfxIMgPIV5pZ+kxAmZ l168/NIoUNhz+N25WmQayDf0seD+7yGZWoz9OXqb7KYokK2khsiWNJvGlluO4YVd/LP4 x85VSOBZLN22WCrl9oDFeoa4yQTYKtMNKbZwvsQT3yG+fSw6VI8THr61H5XTNAjpnceI qfmhfKb+38puCH7dVfzkpJYhjRMEJ2wxPdT+crWceRaeLcCeNbDEvzcd7ovimi21lTht BxSSHUWvWi+d9MLFqSBerANX/TgnHTpYCewjED039d8riTzFNqXD6cKUu53lgEu/ntPD kFoA== X-Gm-Message-State: AOAM5313oiWQ/8Yi1XUxhEO2wm2SKsqI/BmYWrDdrHTEx78AwL9v7CxG AIWXNWuRVyurvN3CJcoCZZp1JntF4GYNEwyF X-Google-Smtp-Source: ABdhPJwm+0PDuvSyw7umpDaqx3x7xLK33JQ89mz/5iq9vJavZdfEaWAUO61upbFDbStsBQTp5+4dpA== X-Received: by 2002:adf:dc4f:: with SMTP id m15mr27030003wrj.420.1618147075290; Sun, 11 Apr 2021 06:17:55 -0700 (PDT) Received: from localhost ([2a02:8084:20e2:c380:f410:82e8:3a21:eedf]) by smtp.gmail.com with ESMTPSA id z1sm13143600wrt.8.2021.04.11.06.17.54 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 Apr 2021 06:17:54 -0700 (PDT) From: "Basil L. Contovounesios" Date: Sun, 11 Apr 2021 14:17:53 +0100 Message-ID: <87r1jharjy.fsf@tcd.ie> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" Received-SPF: pass client-ip=2a00:1450:4864:20::429; envelope-from=contovob@tcd.ie; helo=mail-wr1-x429.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.7 (-) 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: -2.7 (--) --=-=-= Content-Type: text/plain On Debian Testing with libseccomp 2.5.1-1, 'make test/emacs-tests' fails with: Test emacs-tests/seccomp/allows-stdout backtrace: signal(ert-test-failed (((should (eql status 0)) :form (eql "Bad sys ert-fail(((should (eql status 0)) :form (eql "Bad system call" 0) :v [...] normal-top-level() Test emacs-tests/seccomp/allows-stdout condition: Info: Process output: (ert-test-failed ((should (eql status 0)) :form (eql "Bad system call" 0) :value nil)) FAILED 2/6 emacs-tests/seccomp/allows-stdout (0.032159 sec) Investigating a bit further, from the source tree root: 0. cd src 1. gdb ./emacs 2. set logging on 3. b pdumper.c:5263 4. r -Q -batch -seccomp ../test/src/emacs-resources/seccomp-filter.bpf 5. s RET RET RET 6. q Here's the log: --=-=-= Content-Type: text/plain Content-Disposition: inline; filename=gdb.txt Breakpoint 3 at 0x28ab53: file pdumper.c, line 5263. Starting program: /home/blc/.local/src/emacs/src/emacs -Q -batch -seccomp ../test/src/emacs-resources/seccomp-filter.bpf [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Breakpoint 3, pdumper_load (dump_filename=0x555555ed99f0 "/home/blc/.local/src/emacs/src/emacs.pdmp") at pdumper.c:5263 5263 const struct timespec start_time = current_timespec (); current_timespec () at gettime.c:47 47 gettime (&ts); gettime (ts=0x7fffffffd8b0) at gettime.c:32 32 clock_gettime (CLOCK_REALTIME, ts); __GI___clock_gettime (clock_id=0, tp=0x7fffffffd8b0) at ../sysdeps/unix/sysv/linux/clock_gettime.c:38 38 ../sysdeps/unix/sysv/linux/clock_gettime.c: No such file or directory. Program terminated with signal SIGSYS, Bad system call. The program no longer exists. --=-=-= Content-Type: text/plain Let me know if you'd like me to test anything further. Thanks, -- Basil In GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 1.16.0, Xaw3d scroll bars) of 2021-04-11 built on tia Repository revision: 686c366f8a63c448d06e5f08d604374fb316bc57 Repository branch: master Windowing system distributor 'The X.Org Foundation', version 11.0.12010000 System Description: Debian GNU/Linux bullseye/sid Configured using: 'configure 'CC=ccache gcc' 'CFLAGS=-O0 -g3 -ggdb -gdwarf-4' --prefix=/home/blc/.local --enable-checking=yes,glyphs --enable-check-lisp-object-type --with-x-toolkit=lucid --with-file-notification=yes --with-x' Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS X11 XAW3D XDBE XIM XPM LUCID ZLIB Important settings: value of $LANG: en_IE.UTF-8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8-unix Features: (shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs rfc822 mml mml-sec epa derived epg epg-config gnus-util rmail rmail-loaddefs auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs password-cache json map text-property-search time-date subr-x seq byte-opt gv bytecomp byte-compile cconv mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader cl-loaddefs cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils iso-transl tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode elisp-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray cl-preloaded nadvice button loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote threads dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting cairo x-toolkit x multi-tty make-network-process emacs) --=-=-=-- From unknown Tue Jun 17 01:49:07 2025 X-Loop: help-debbugs@gnu.org Subject: bug#47708: 28.0.50; SIGSYS test failure with seccomp-filter.bpf Resent-From: Philipp Stephani Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 11 Apr 2021 14:00:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47708 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: "Basil L. Contovounesios" Cc: 47708@debbugs.gnu.org Received: via spool by 47708-submit@debbugs.gnu.org id=B47708.161814955621284 (code B ref 47708); Sun, 11 Apr 2021 14:00:02 +0000 Received: (at 47708) by debbugs.gnu.org; 11 Apr 2021 13:59:16 +0000 Received: from localhost ([127.0.0.1]:55693 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVacO-0005XC-CX for submit@debbugs.gnu.org; Sun, 11 Apr 2021 09:59:16 -0400 Received: from mail-ot1-f47.google.com ([209.85.210.47]:34678) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVacM-0005Wz-K4 for 47708@debbugs.gnu.org; Sun, 11 Apr 2021 09:59:15 -0400 Received: by mail-ot1-f47.google.com with SMTP id k14-20020a9d7dce0000b02901b866632f29so10302613otn.1 for <47708@debbugs.gnu.org>; Sun, 11 Apr 2021 06:59:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=83X2vuyENqK7sbk6LFgsKuVp7QcCek1rvFsNRc+zwQk=; b=jpeFdNrLnHkF+KIe05wowtZ/C6TvM3V2yAaLkhWSG56Y1LaqdkrzqWbtFUK35UrGue QoWEzCiwWuEXrAozZ2Q0Z+pgT+EvFwgH9p4CpTuEkowhvb0b5qpw/RgRptD6aTFhRtFQ sW6BVuecDqgi1kykm0PJuXMDRro+K/ecdD+9G3a8T/nO97dBEKlnERhBuMWqHDaQPf1o ouGezZUfyA/2QZXBOhJT9zBmwg8B+aanG9OIaNFPL5xYsKidDpRtPydXS3Nbb4e8Elvj su/Isf7BIsc0ETqgSyMjj0gzAWL+JyXR0CCa7bgkk6ASTt87kUGZfmZVfyX6ot3QHp+g TBfg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=83X2vuyENqK7sbk6LFgsKuVp7QcCek1rvFsNRc+zwQk=; b=Mdbv5PzfMWZ8jtcZ6Rcj+uJMhT/73vT52754gRwCKF/p7wLM4ssZLdfFCnsDuPy8hG TLDBKAZDunvOv+ZWxUg4Br9nWWoKdsn1El8zWYbQ/hV5hQxrYwVgvNvAOJVuBKTHEH89 0dRxSMV/y5WDx4Hpe51IxsVTNj+vbpkJQVUIeW3wcrId5cg6AIZorst5g8NyMhzCJSsT l09SeVChMiW3lBRvma5hqHIrwPiXK8D+0deIInplke/OAF1/efuvF4aqkoNscrXPrR84 gu7G6LefTu1StdW7+7GEHKAo8JCdqcmeYV80TF2xIs9t+P9yUBqB49iH/Fd55IGW+uhQ hbig== X-Gm-Message-State: AOAM530xGzn/uLCUZSL9aBTYKcejAr710BQIU+yAjpVWLuQEouXV0yGs 4yeFIL2g7EP6+8p67xBGyirbnYU84VB1w9z3Ugc= X-Google-Smtp-Source: ABdhPJxT/QrMd2jiQiJd+rnHPYIQdASeWKDVncp5LzBjTGBKwZviHvZYJznMMhMYIS5VJC20O4wWPU0CaY5AM3TgG5c= X-Received: by 2002:a05:6830:4121:: with SMTP id w33mr19714900ott.153.1618149548868; Sun, 11 Apr 2021 06:59:08 -0700 (PDT) MIME-Version: 1.0 References: <87r1jharjy.fsf@tcd.ie> In-Reply-To: <87r1jharjy.fsf@tcd.ie> From: Philipp Stephani Date: Sun, 11 Apr 2021 15:58:57 +0200 Message-ID: Content-Type: text/plain; charset="UTF-8" X-Spam-Score: 0.2 (/) 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: -0.8 (/) Am So., 11. Apr. 2021 um 15:19 Uhr schrieb Basil L. Contovounesios : > > On Debian Testing with libseccomp 2.5.1-1, 'make test/emacs-tests' fails > with: > > Test emacs-tests/seccomp/allows-stdout backtrace: > signal(ert-test-failed (((should (eql status 0)) :form (eql "Bad sys > ert-fail(((should (eql status 0)) :form (eql "Bad system call" 0) :v > [...] > normal-top-level() > Test emacs-tests/seccomp/allows-stdout condition: > Info: Process output: > (ert-test-failed > ((should > (eql status 0)) > :form > (eql "Bad system call" 0) > :value nil)) > FAILED 2/6 emacs-tests/seccomp/allows-stdout (0.032159 sec) > Thanks for the report! Could you check which syscall exactly is failing, e.g. using journalctl -g SECCOMP -t audisp-syslog (assuming that system uses systemd and seccomp audit logging is enabled). From unknown Tue Jun 17 01:49:07 2025 X-Loop: help-debbugs@gnu.org Subject: bug#47708: 28.0.50; SIGSYS test failure with seccomp-filter.bpf Resent-From: "Basil L. Contovounesios" Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 11 Apr 2021 17:14:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47708 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Philipp Stephani Cc: 47708@debbugs.gnu.org Received: via spool by 47708-submit@debbugs.gnu.org id=B47708.16181612236981 (code B ref 47708); Sun, 11 Apr 2021 17:14:01 +0000 Received: (at 47708) by debbugs.gnu.org; 11 Apr 2021 17:13:43 +0000 Received: from localhost ([127.0.0.1]:55804 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVdeY-0001oX-Or for submit@debbugs.gnu.org; Sun, 11 Apr 2021 13:13:42 -0400 Received: from mail-wr1-f43.google.com ([209.85.221.43]:41808) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVdeW-0001oJ-CQ for 47708@debbugs.gnu.org; Sun, 11 Apr 2021 13:13:41 -0400 Received: by mail-wr1-f43.google.com with SMTP id a6so10513436wrw.8 for <47708@debbugs.gnu.org>; Sun, 11 Apr 2021 10:13:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tcd.ie; s=google21; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version; bh=lzqiRo5K7VAkXb55WDjcyDGrztYrB1nCzrW5vpdt+J0=; b=BAYPWeeA6hdDh7M60kUqud3ETrxVZfsGnmSqJi6wlr3RMhWnvhQBruju0dqrfWDSwf 17Ecv4SSHs50LdVGJiYsxOCsX0tHYRXfEpyu9TEz3k5Y6FEONcH6icsArbZxJBDuLuUk 7a+6M7sRCl1XFE6ouPzvD6P/WsTZzRJeqM7H48de5D0YTOhHJUys6mxwWpk20Viqu3G/ hwjmVlmlxXGWM/cv4HjqXyaPAz9/YSXSIiEDY2eym7e8RoWU1+OveWPWCG8Gvk8+nQmJ dAlCGP7SkeOp84LSz8HF3nR3xnrcXw+b5/9TpdaU9tGXc/Fcp0LZ+wrnEjwcbEnkwbYm YvnA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version; bh=lzqiRo5K7VAkXb55WDjcyDGrztYrB1nCzrW5vpdt+J0=; b=W7n5BR5Meh+TQS7l/aBEqC3OEkKGILCnYgJ7xfrksUe3Z/M0CFLAEhWc7m31yw5xnL VvgsM5KfEOH/QtLWdyahNQ1zqss+KEVEiakIz63gHA19yErW6fRPtVa3qQQy6F2wioWh 78/RWFHuKyutPeovIRpEDHW1JgKgO2fLYRxq+F/jibJuIDxxjO12EA4zWoMjfUFleH3X YLXepI3IZy2TChVovlBrNbInjgLdaO9fDsz0boPwi1IkjZzObw0S+JOU4e3tSYN+nsIY gvEMeLf1Rpbht6LlgxtKtduREN7tik8qixADDnAe6eFkrztWIdwFhySxR3YlquC5AgG+ lFoQ== X-Gm-Message-State: AOAM530TMySk5VFotH2hTQCV8Dmh1CoEPdl043KT/sSFcMxrs0sTk8Yy bRWFGh1CsF3KV+Nm4eWezGh4HA== X-Google-Smtp-Source: ABdhPJym3sXVEhaBKtuiBydHcQHXvcW3+zCUbaXNXoIojXuKQI9HTPNBPQVBfIADor1cZsY9CTX+8A== X-Received: by 2002:adf:b1d3:: with SMTP id r19mr6966020wra.97.1618161214663; Sun, 11 Apr 2021 10:13:34 -0700 (PDT) Received: from localhost ([2a02:8084:20e2:c380:d15:339e:aa10:60f1]) by smtp.gmail.com with ESMTPSA id g15sm11600551wmq.31.2021.04.11.10.13.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 Apr 2021 10:13:34 -0700 (PDT) From: "Basil L. Contovounesios" References: <87r1jharjy.fsf@tcd.ie> Date: Sun, 11 Apr 2021 18:13:32 +0100 In-Reply-To: (Philipp Stephani's message of "Sun, 11 Apr 2021 15:58:57 +0200") Message-ID: <87h7kcpww3.fsf@tcd.ie> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: -0.0 (/) 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 (-) Philipp Stephani writes: > Could you check which syscall exactly is failing, e.g. using > journalctl -g SECCOMP -t audisp-syslog > (assuming that system uses systemd and seccomp audit logging is enabled). After running: ./src/emacs -Q -batch -seccomp test/src/emacs-resources/seccomp-filter.bpf the last audit in 'sudo journalctl -g SECCOMP' is: Apr 11 18:08:56 tia audit[25251]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj==unconfined pid=25251 comm="emacs" exe="/home/blc/.local/src/emacs/src/emacs" sig=31 arch=c000003e syscall=228 compat=0 ip=0x7fff7f1f7a7d code=0x80000000 Looking up syscall 228 online points to clock_gettime, just like in the GDB log I attached in my previous message. Is there something else I can check? Thanks, -- Basil From unknown Tue Jun 17 01:49:07 2025 X-Loop: help-debbugs@gnu.org Subject: bug#47708: 28.0.50; SIGSYS test failure with seccomp-filter.bpf Resent-From: "Basil L. Contovounesios" Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 11 Apr 2021 17:20:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47708 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Philipp Stephani Cc: 47708@debbugs.gnu.org Received: via spool by 47708-submit@debbugs.gnu.org id=B47708.16181615797561 (code B ref 47708); Sun, 11 Apr 2021 17:20:03 +0000 Received: (at 47708) by debbugs.gnu.org; 11 Apr 2021 17:19:39 +0000 Received: from localhost ([127.0.0.1]:55817 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVdkI-0001xt-Q6 for submit@debbugs.gnu.org; Sun, 11 Apr 2021 13:19:39 -0400 Received: from mail-wm1-f43.google.com ([209.85.128.43]:54995) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVdkH-0001xh-7R for 47708@debbugs.gnu.org; Sun, 11 Apr 2021 13:19:37 -0400 Received: by mail-wm1-f43.google.com with SMTP id k128so5466122wmk.4 for <47708@debbugs.gnu.org>; Sun, 11 Apr 2021 10:19:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tcd.ie; s=google21; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-transfer-encoding; bh=Q8g5ZCZGkbOfjsyGheRlpduAWXsqemBLM44C2rpIKM4=; b=IUzI1MjKvfeLK5Qjp6cSKw0txnMTOzBo4wHjSKDq9vxromYd9yn06XyxCh+qUVIM1K gohECa5gATFNZilp9XkdrAnLasg8JmvJgvBdU24wrb4Lhlt82woUo7I5yJ0PNSS3J2US HBezxA1YqplEvFBFHFCTIgNjOzCrqImiWe3zFDJJIGZ9pnqyVi89vMmRSYa4OznguWmO 85Q3SQGEepdIbJjmgku1zI/00yDjJ60SOin8h72ORrjv7X8P7r9WeD1sESB/tIbSopAb 7Pckswke72ZzzIlMcDe+ecmWD0PhlOilJajFz8Liy7ndrQAI3getktzrr7ahbnQCtvEl DVtA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version:content-transfer-encoding; bh=Q8g5ZCZGkbOfjsyGheRlpduAWXsqemBLM44C2rpIKM4=; b=I1gEcu5Ds+1HL0OBRHxkrTmZXfzP/PxUJEm3yC2FOkmJ38n+2tepqmbhffVzJPf6sC psDterM9ROKYCy5IU0izC/5DdUUTp3HWrkngnLSvdC60KOoGIH3Pe37pXMWOTs5NCqhS gY3gT13vMLHYOGPDPzFumlDFYDOuWe7LdhuIXV9krnzKhFHg39kf9bJ9BRxdm/aCFY+O KNCd/SNmPQw4q3tEeVWgwoC+Ae0e0WEZEVxNuqSGB43TCtub/unJ+4C0DLOeiBzbVWQn jXz0J+DbuyM2nxnuJtFdbEw3vnO4d6TsOy+VsijChxuo9RSIinmw5hWFwGdUJMHXivHD Rl3w== X-Gm-Message-State: AOAM533fB/O954RGy9etuNMaNyvZG/o9G+/ofPJHSHkqiEZJXhbHxxH/ feA2uAob6vxGF45xmELwsTcIYw== X-Google-Smtp-Source: ABdhPJzxzJLk30g0bYJbIG8gWmMJfdHn5pELNCTSX2kkyuB/PY/NsY94LSKoDEqh6TTeZUMiLhjpWQ== X-Received: by 2002:a05:600c:358c:: with SMTP id p12mr22839470wmq.19.1618161571426; Sun, 11 Apr 2021 10:19:31 -0700 (PDT) Received: from localhost ([2a02:8084:20e2:c380:d15:339e:aa10:60f1]) by smtp.gmail.com with ESMTPSA id n3sm12315892wmi.7.2021.04.11.10.19.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 Apr 2021 10:19:31 -0700 (PDT) From: "Basil L. Contovounesios" References: <87r1jharjy.fsf@tcd.ie> <87h7kcpww3.fsf@tcd.ie> Date: Sun, 11 Apr 2021 18:19:29 +0100 In-Reply-To: <87h7kcpww3.fsf@tcd.ie> (Basil L. Contovounesios's message of "Sun, 11 Apr 2021 18:13:32 +0100") Message-ID: <875z0spwm6.fsf@tcd.ie> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -0.0 (/) 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 (-) "Basil L. Contovounesios" writes: > Philipp Stephani writes: > >> Could you check which syscall exactly is failing, e.g. using >> journalctl -g SECCOMP -t audisp-syslog >> (assuming that system uses systemd and seccomp audit logging is enabled). > > After running: > > ./src/emacs -Q -batch -seccomp test/src/emacs-resources/seccomp-filter.= bpf > > the last audit in 'sudo journalctl -g SECCOMP' is: > > Apr 11 18:08:56 tia audit[25251]: SECCOMP auid=3D1000 uid=3D1000 gid=3D= 1000 > ses=3D3 subj=3D=3Dunconfined pid=3D25251 comm=3D"emacs" > exe=3D"/home/blc/.local/src/emacs/src/emacs" sig=3D31 arch=3Dc000003e > syscall=3D228 compat=3D0 ip=3D0x7fff7f1f7a7d code=3D0x80000000 > > Looking up syscall 228 online points to clock_gettime, just like in the > GDB log I attached in my previous message. I don't know whether this is relevant, but 'man 2 seccomp' has the following to say about clock_gettime: Caveats There are various subtleties to consider when applying seccomp filte= rs to a program, including the following: * Some traditional system calls have user-space implementations in t= he vdso(7) on many architectures. Notable examples include clock_ge= t=E2=80=90 time(2), gettimeofday(2), and time(2). On such architectures, se= c=E2=80=90 comp filtering for these system calls will have no effect. (Ho= w=E2=80=90 ever, there are cases where the vdso(7) implementations may fa= ll back to invoking the true system call, in which case seccomp filte= rs would see the system call.) --=20 Basil From unknown Tue Jun 17 01:49:07 2025 X-Loop: help-debbugs@gnu.org Subject: bug#47708: 28.0.50; SIGSYS test failure with seccomp-filter.bpf Resent-From: Philipp Stephani Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 11 Apr 2021 17:40:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47708 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: "Basil L. Contovounesios" Cc: 47708@debbugs.gnu.org Received: via spool by 47708-submit@debbugs.gnu.org id=B47708.16181627809367 (code B ref 47708); Sun, 11 Apr 2021 17:40:02 +0000 Received: (at 47708) by debbugs.gnu.org; 11 Apr 2021 17:39:40 +0000 Received: from localhost ([127.0.0.1]:55828 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVe3g-0002R1-05 for submit@debbugs.gnu.org; Sun, 11 Apr 2021 13:39:40 -0400 Received: from mail-ot1-f42.google.com ([209.85.210.42]:45960) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVe3e-0002Qn-2s for 47708@debbugs.gnu.org; Sun, 11 Apr 2021 13:39:38 -0400 Received: by mail-ot1-f42.google.com with SMTP id f75-20020a9d03d10000b0290280def9ab76so5535617otf.12 for <47708@debbugs.gnu.org>; Sun, 11 Apr 2021 10:39:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=AljiSjEbqBbr3Flho9KeCZh2D8APlrciVHjW2GsJeX0=; b=GGnVC+Z6SL4KY1ygGIkZRSix5jr+KBFtfPqe722onOQVH9DBUqznpVadnX0Bm3dC5e yQomOLMSJFyK9hpZa6i385tmJE6CWwWYCk1n4BwucmS51qdmm5q36u4MUth/gyqEM6QD f2vTYfXxbgHZLlvEugNYaDweiax4Rwi5Y6qMOKc682vESUO4vGZjGYAcL1LC3Cd/USnN A6RnTYa6LaiIgi3N8h1fuedV3CeR6/Ek50MG4X4G7vROa478d8CewIiq2RzSYJbiApFG EC5r9R4w/iwHOBzpl8nj+pNCPd36XgOTOYBwQH6GYvzyGNg2jmSOl8foLHa/wx+NaOnc SWpQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=AljiSjEbqBbr3Flho9KeCZh2D8APlrciVHjW2GsJeX0=; b=CakSPEOm+As6kLEBjHJ62l/ivT/j13NGlAg8n/fnwmPm723f1q2yqKE0/jv70EkcPo BYc1VgIkjrOMzHw6DK2nBKPOkQRM1hi5pyz23qNvDvhQcDv7Jvn2WD3W/m7BLyzKaoU/ rDN04OQx6sSKM9eU5fkiwaVcsMXUZSVVfPhxQPiRurSRVxKfdc4Ku5W4rgcNHhslAiUi NQuFV/+KeNQSitSlgA4CfTuB8SCQZrrH7jBwW1+FAvAOlO+DR30Hp5J/EN3fH/JT+3m8 urC920R09AeasoQUP8pCFiJa7Uo8NRc6YLf+QU8I5WB5bkvfYPqQ48kgGlTdRwBpJatT lM5A== X-Gm-Message-State: AOAM5311YkcH+BPPYpjJJoaDPqi8GGpxD0IjbtTPkeOKos37VZf9yuOU i6V9WlgnHMliXuDhvBjvmMt0QZRYthcsi/5dGLI= X-Google-Smtp-Source: ABdhPJxOMpOm2EqHMuYUSuA7qkk9+YdIEtUMibUNpnOHTDqSPQwRtGGg18cJyipBC3KUhWQQhv04TfphUtnteLPn3K0= X-Received: by 2002:a05:6830:1046:: with SMTP id b6mr20614134otp.156.1618162772216; Sun, 11 Apr 2021 10:39:32 -0700 (PDT) MIME-Version: 1.0 References: <87r1jharjy.fsf@tcd.ie> <87h7kcpww3.fsf@tcd.ie> In-Reply-To: <87h7kcpww3.fsf@tcd.ie> From: Philipp Stephani Date: Sun, 11 Apr 2021 19:39:21 +0200 Message-ID: Content-Type: text/plain; charset="UTF-8" X-Spam-Score: 0.2 (/) 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: -0.8 (/) Am So., 11. Apr. 2021 um 19:13 Uhr schrieb Basil L. Contovounesios : > > Philipp Stephani writes: > > > Could you check which syscall exactly is failing, e.g. using > > journalctl -g SECCOMP -t audisp-syslog > > (assuming that system uses systemd and seccomp audit logging is enabled). > > After running: > > ./src/emacs -Q -batch -seccomp test/src/emacs-resources/seccomp-filter.bpf > > the last audit in 'sudo journalctl -g SECCOMP' is: > > Apr 11 18:08:56 tia audit[25251]: SECCOMP auid=1000 uid=1000 gid=1000 > ses=3 subj==unconfined pid=25251 comm="emacs" > exe="/home/blc/.local/src/emacs/src/emacs" sig=31 arch=c000003e > syscall=228 compat=0 ip=0x7fff7f1f7a7d code=0x80000000 > > Looking up syscall 228 online points to clock_gettime, just like in the > GDB log I attached in my previous message. Thanks for the confirmation. (Occasionally the actual syscall is different from the C library function that invokes it.) From unknown Tue Jun 17 01:49:07 2025 X-Loop: help-debbugs@gnu.org Subject: bug#47708: 28.0.50; SIGSYS test failure with seccomp-filter.bpf Resent-From: Philipp Stephani Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 11 Apr 2021 17:53:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47708 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: "Basil L. Contovounesios" Cc: 47708@debbugs.gnu.org Received: via spool by 47708-submit@debbugs.gnu.org id=B47708.161816358110525 (code B ref 47708); Sun, 11 Apr 2021 17:53:02 +0000 Received: (at 47708) by debbugs.gnu.org; 11 Apr 2021 17:53:01 +0000 Received: from localhost ([127.0.0.1]:55832 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVeGb-0002jh-8I for submit@debbugs.gnu.org; Sun, 11 Apr 2021 13:53:01 -0400 Received: from mail-ot1-f49.google.com ([209.85.210.49]:47062) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVeGZ-0002jT-4j for 47708@debbugs.gnu.org; Sun, 11 Apr 2021 13:52:59 -0400 Received: by mail-ot1-f49.google.com with SMTP id d3-20020a9d29030000b029027e8019067fso8747091otb.13 for <47708@debbugs.gnu.org>; Sun, 11 Apr 2021 10:52:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=UR4YnEswZdYFqKanyQAdeaf6TAP+1RV55pNQG5xxaLo=; b=Jf+3DqbNlmT7MTA7aVOSrzcpRtXq34xHPna8uUKA1gFdA7Af+dXNPlfcgcNeg/zunB 7TYYyMmOiSi0teSx8gqIIcOK9H8EROLcIlo+yJfrC6+VA6l9J1MFkAqqugVKhil5Aa11 O1N0fAEHF3GbvE6tD2aIdqRAkFIQ7kWjXCMfdTtAKfbTmDu1uK/cWW4O6uxhHOGxygbG GV3TUMe8a8/RVWHJ6bPKnr5Szuq/zkiJcRJMrQRFscoi/llUhNoDuSgf++ncJRdm4Qzn NXXWam/X3A6MEPR9FDc1KhT0WN0lxIUeGfSs32veylCMD5ijm7GdzV5m21iNCrtroPuU 2S0Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=UR4YnEswZdYFqKanyQAdeaf6TAP+1RV55pNQG5xxaLo=; b=L90GpEBe2SANn03vhQqLyTWg8KIwioDJpvHKJ//OPduVsosGk9aC/Y/+RvI9Uu4kaa YcWwWFpojZJ26nJCLRRn9eRmG0GCITY/4VPEuNqhtkFPAqP3Qd9D3vDI0wC9uhX95ptp KIwspoVOMA+zH29EHGHHn/phGBgZHpA3PkQ97pUPWU5J5x3u9edFgCizj1JcLaAW6F0I ZGYZF1ovrRDwxk7fXk8R2S0k8r87rUPfrKGr62MUBB+nxH9P7Z91SpFhm7q2B/gB8M15 1NiTZhKbVzthiCc+Gieky7lk7IClcHJCl1p7lOBTdfbnK9KfjJCiedErGorSrsclwap6 w9/Q== X-Gm-Message-State: AOAM532f4ahaTMvdC68cLaQxS7G2VXmJAKopR43JowSse+mHkYjIHEqp 0uAJF/ZOpT5ZUPxKfMRKW7b8/x5hPnSYYXaMnOM= X-Google-Smtp-Source: ABdhPJw68xY/QAvhpTpRQwBojlZouqJUJFV2VyWVnBJLAyAnXajQgLkNtOdCQ6y84nrnwVrwhauuSL0RIGp8t82ZAEo= X-Received: by 2002:a05:6830:4121:: with SMTP id w33mr20401668ott.153.1618163573453; Sun, 11 Apr 2021 10:52:53 -0700 (PDT) MIME-Version: 1.0 References: <87r1jharjy.fsf@tcd.ie> <87h7kcpww3.fsf@tcd.ie> <875z0spwm6.fsf@tcd.ie> In-Reply-To: <875z0spwm6.fsf@tcd.ie> From: Philipp Stephani Date: Sun, 11 Apr 2021 19:52:42 +0200 Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.2 (/) 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: -0.8 (/) Am So., 11. Apr. 2021 um 19:19 Uhr schrieb Basil L. Contovounesios : > > "Basil L. Contovounesios" writes: > > > Philipp Stephani writes: > > > >> Could you check which syscall exactly is failing, e.g. using > >> journalctl -g SECCOMP -t audisp-syslog > >> (assuming that system uses systemd and seccomp audit logging is enable= d). > > > > After running: > > > > ./src/emacs -Q -batch -seccomp test/src/emacs-resources/seccomp-filte= r.bpf > > > > the last audit in 'sudo journalctl -g SECCOMP' is: > > > > Apr 11 18:08:56 tia audit[25251]: SECCOMP auid=3D1000 uid=3D1000 gid= =3D1000 > > ses=3D3 subj=3D=3Dunconfined pid=3D25251 comm=3D"emacs" > > exe=3D"/home/blc/.local/src/emacs/src/emacs" sig=3D31 arch=3Dc000003e > > syscall=3D228 compat=3D0 ip=3D0x7fff7f1f7a7d code=3D0x80000000 > > > > Looking up syscall 228 online points to clock_gettime, just like in the > > GDB log I attached in my previous message. > > I don't know whether this is relevant, but 'man 2 seccomp' has the > following to say about clock_gettime: > > Caveats > There are various subtleties to consider when applying seccomp fil= ters > to a program, including the following: > > * Some traditional system calls have user-space implementations in= the > vdso(7) on many architectures. Notable examples include clock_= get=E2=80=90 > time(2), gettimeofday(2), and time(2). On such architectures, = sec=E2=80=90 > comp filtering for these system calls will have no effect. (= How=E2=80=90 > ever, there are cases where the vdso(7) implementations may = fall > back to invoking the true system call, in which case seccomp fil= ters > would see the system call.) > Nice catch. I think it should be fine to allow the clock system calls. I've now done that with commit ea5ea09244b762008bba509d8c58bad5835fb949. From unknown Tue Jun 17 01:49:07 2025 MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) X-Loop: help-debbugs@gnu.org From: help-debbugs@gnu.org (GNU bug Tracking System) To: "Basil L. Contovounesios" Subject: bug#47708: closed (Re: bug#47708: 28.0.50; SIGSYS test failure with seccomp-filter.bpf) Message-ID: References: <87wnt8odv8.fsf@tcd.ie> <87r1jharjy.fsf@tcd.ie> X-Gnu-PR-Message: they-closed 47708 X-Gnu-PR-Package: emacs Reply-To: 47708@debbugs.gnu.org Date: Sun, 11 Apr 2021 18:50:01 +0000 Content-Type: multipart/mixed; boundary="----------=_1618167001-15696-1" This is a multi-part message in MIME format... ------------=_1618167001-15696-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Your bug report #47708: 28.0.50; SIGSYS test failure with seccomp-filter.bpf which was filed against the emacs package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 47708@debbugs.gnu.org. --=20 47708: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D47708 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems ------------=_1618167001-15696-1 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at 47708-done) by debbugs.gnu.org; 11 Apr 2021 18:49:59 +0000 Received: from localhost ([127.0.0.1]:55875 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVf9i-00044q-RX for submit@debbugs.gnu.org; Sun, 11 Apr 2021 14:49:59 -0400 Received: from mail-wr1-f41.google.com ([209.85.221.41]:40789) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVf9f-00044b-P9 for 47708-done@debbugs.gnu.org; Sun, 11 Apr 2021 14:49:57 -0400 Received: by mail-wr1-f41.google.com with SMTP id 12so10666007wrz.7 for <47708-done@debbugs.gnu.org>; Sun, 11 Apr 2021 11:49:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tcd.ie; s=google21; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-transfer-encoding; bh=v6dLAJGThH5KeeJuGQQsl1U7cIED0XC1iqDMogDVQyw=; b=Ib7K4Blzln9JWuxh+wkqZoFrVzVMmuTT6alM2LcFdmCgnM5XCOloioWKIQOl4ZouSR VDfXGsE+pAHPj9ibQH1wMd5xbV3oPLfg1+ORELfr9r1ZLTkvSK8rIKujAF+lshM6VwqQ aPoe60aOiP4mVJveWXM7a+thpc/SrK/zFk3gzcQ+GLuLTa9gTOASubEu8Xo8ctUh1VWr MJqduWwfb7kWp9RvxdfQDEYWKDf2uGqEyjpkTiiGtLu3f4plGdWW1rF1ZmMBJ9zTRlUW w1r+622SCjX780dr2K3ArytgY+5mxgKb47GdWUFUmTDyNHCq68G82uvImGqsX9Q+nfk/ NLTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version:content-transfer-encoding; bh=v6dLAJGThH5KeeJuGQQsl1U7cIED0XC1iqDMogDVQyw=; b=c3WYovEp6TtFxH8cs2p0vQckY+d8/I9gL/bBGFgcLt5PrFf9iFSJl5lwbnrmPaeTqq s1IGzZJd5JmnSBj+inKjOtMLQZ0QVusN+lLVWvviJLlgem0BsamS2HQMYnvfEqhqaHlE zI7WmsAGHmdJIauR9r1psdmfpPYqFBvmiy0aGf2UruEH4h2FpgzkWKEpTtcthu6OKiw+ PijjRpQqUcZeqlHdHOGdiMWwhIX5LbJqVQCFktT9jeLyaJT+GFtwYNKp33ZEHP9yrMdM mSH7rxaUHxneyD3K+cmX6VRtj4IJ3XlJekW7g2X/G3wBIVmaGoDPdChMIIukx/+sA9hH hWUA== X-Gm-Message-State: AOAM530xbz48n6b00loFHgxMEOXdIa8bEs+w7qQSF2eotI6adfBPg+XG SQetq2jQB6WSOKKOyAFVtWB9Fw== X-Google-Smtp-Source: ABdhPJzWSX3x1N2IoJVPxVvsgigMz0goxPg7KsdSbGpRTX433D3HmVyLpPJBMME/JlbgpksGDRnPuQ== X-Received: by 2002:a5d:58e5:: with SMTP id f5mr28457663wrd.131.1618166989759; Sun, 11 Apr 2021 11:49:49 -0700 (PDT) Received: from localhost ([2a02:8084:20e2:c380:d15:339e:aa10:60f1]) by smtp.gmail.com with ESMTPSA id u9sm12374677wmc.38.2021.04.11.11.49.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 Apr 2021 11:49:49 -0700 (PDT) From: "Basil L. Contovounesios" To: Philipp Stephani Subject: Re: bug#47708: 28.0.50; SIGSYS test failure with seccomp-filter.bpf References: <87r1jharjy.fsf@tcd.ie> <87h7kcpww3.fsf@tcd.ie> <875z0spwm6.fsf@tcd.ie> Date: Sun, 11 Apr 2021 19:49:47 +0100 In-Reply-To: (Philipp Stephani's message of "Sun, 11 Apr 2021 19:52:42 +0200") Message-ID: <87wnt8odv8.fsf@tcd.ie> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 47708-done Cc: 47708-done@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 (-) Philipp Stephani writes: > Am So., 11. Apr. 2021 um 19:19 Uhr schrieb Basil L. Contovounesios > : >> >> I don't know whether this is relevant, but 'man 2 seccomp' has the >> following to say about clock_gettime: >> >> Caveats >> There are various subtleties to consider when applying seccomp fi= lters >> to a program, including the following: >> >> * Some traditional system calls have user-space implementations i= n the >> vdso(7) on many architectures. Notable examples include clock= _get=E2=80=90 >> time(2), gettimeofday(2), and time(2). On such architectures,= sec=E2=80=90 >> comp filtering for these system calls will have no effect. = (How=E2=80=90 >> ever, there are cases where the vdso(7) implementations may= fall >> back to invoking the true system call, in which case seccomp fi= lters >> would see the system call.) >> > > Nice catch. I think it should be fine to allow the clock system calls. > I've now done that with commit > ea5ea09244b762008bba509d8c58bad5835fb949. Thanks, that fixes the test failure here, so I'm closing this report. --=20 Basil ------------=_1618167001-15696-1 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at submit) by debbugs.gnu.org; 11 Apr 2021 13:18:05 +0000 Received: from localhost ([127.0.0.1]:54151 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVZyW-00049X-8n for submit@debbugs.gnu.org; Sun, 11 Apr 2021 09:18:04 -0400 Received: from lists.gnu.org ([209.51.188.17]:45926) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lVZyU-00049P-60 for submit@debbugs.gnu.org; Sun, 11 Apr 2021 09:18:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58422) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lVZyT-0003qP-Oq for bug-gnu-emacs@gnu.org; Sun, 11 Apr 2021 09:18:02 -0400 Received: from mail-wr1-x429.google.com ([2a00:1450:4864:20::429]:36408) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lVZyR-0007E2-DH for bug-gnu-emacs@gnu.org; Sun, 11 Apr 2021 09:18:01 -0400 Received: by mail-wr1-x429.google.com with SMTP id x15so10162061wrq.3 for ; Sun, 11 Apr 2021 06:17:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tcd.ie; s=google21; h=from:to:subject:date:message-id:mime-version; bh=L2Jqv4vdfktnNSOxZ/AF55zYz8qGFAJk3b8xT1MoCeM=; b=FC30HXJ4kzW3YnWZGPDWWqTnexlhemeo1Mv0/DK64Uj/CzYnysONeGyTrlg8rqo6fD QiCsKxrAa07cY3Q4q60A7OvhGTMTZ5WBxHEdhuW6mmQKCRpTGNXJDzOQfLncGMpMoBeG rFJ6CppxP/afULb4fByR1Uf6TuKtRtVlwR45NBAOvMcgoYynfWmP9LI6aOwUDbDN3sgY KfNcnc3SmLpJqltBzVeZMR4ODtYyVf+KMgKy/QFXcO6WrIzKh3OYqR7s8pVeSwSWtXY6 kPW5Q+Wov1dFw8twGuRR3LwhouJLxhiqzWXK3yG/UL+bm3UQVzhHP4mn6LOJRRyv2IPs cw5g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version; bh=L2Jqv4vdfktnNSOxZ/AF55zYz8qGFAJk3b8xT1MoCeM=; b=fGSo9XznKcLo/zIyQID0qVzAJmJAOEebSu3MNtMh6far0/FblfxIMgPIV5pZ+kxAmZ l168/NIoUNhz+N25WmQayDf0seD+7yGZWoz9OXqb7KYokK2khsiWNJvGlluO4YVd/LP4 x85VSOBZLN22WCrl9oDFeoa4yQTYKtMNKbZwvsQT3yG+fSw6VI8THr61H5XTNAjpnceI qfmhfKb+38puCH7dVfzkpJYhjRMEJ2wxPdT+crWceRaeLcCeNbDEvzcd7ovimi21lTht BxSSHUWvWi+d9MLFqSBerANX/TgnHTpYCewjED039d8riTzFNqXD6cKUu53lgEu/ntPD kFoA== X-Gm-Message-State: AOAM5313oiWQ/8Yi1XUxhEO2wm2SKsqI/BmYWrDdrHTEx78AwL9v7CxG AIWXNWuRVyurvN3CJcoCZZp1JntF4GYNEwyF X-Google-Smtp-Source: ABdhPJwm+0PDuvSyw7umpDaqx3x7xLK33JQ89mz/5iq9vJavZdfEaWAUO61upbFDbStsBQTp5+4dpA== X-Received: by 2002:adf:dc4f:: with SMTP id m15mr27030003wrj.420.1618147075290; Sun, 11 Apr 2021 06:17:55 -0700 (PDT) Received: from localhost ([2a02:8084:20e2:c380:f410:82e8:3a21:eedf]) by smtp.gmail.com with ESMTPSA id z1sm13143600wrt.8.2021.04.11.06.17.54 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 Apr 2021 06:17:54 -0700 (PDT) From: "Basil L. Contovounesios" To: bug-gnu-emacs@gnu.org Subject: 28.0.50; SIGSYS test failure with seccomp-filter.bpf X-Debbugs-Cc: Philipp Stephani Date: Sun, 11 Apr 2021 14:17:53 +0100 Message-ID: <87r1jharjy.fsf@tcd.ie> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" Received-SPF: pass client-ip=2a00:1450:4864:20::429; envelope-from=contovob@tcd.ie; helo=mail-wr1-x429.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.7 (-) 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: -2.7 (--) --=-=-= Content-Type: text/plain On Debian Testing with libseccomp 2.5.1-1, 'make test/emacs-tests' fails with: Test emacs-tests/seccomp/allows-stdout backtrace: signal(ert-test-failed (((should (eql status 0)) :form (eql "Bad sys ert-fail(((should (eql status 0)) :form (eql "Bad system call" 0) :v [...] normal-top-level() Test emacs-tests/seccomp/allows-stdout condition: Info: Process output: (ert-test-failed ((should (eql status 0)) :form (eql "Bad system call" 0) :value nil)) FAILED 2/6 emacs-tests/seccomp/allows-stdout (0.032159 sec) Investigating a bit further, from the source tree root: 0. cd src 1. gdb ./emacs 2. set logging on 3. b pdumper.c:5263 4. r -Q -batch -seccomp ../test/src/emacs-resources/seccomp-filter.bpf 5. s RET RET RET 6. q Here's the log: --=-=-= Content-Type: text/plain Content-Disposition: inline; filename=gdb.txt Breakpoint 3 at 0x28ab53: file pdumper.c, line 5263. Starting program: /home/blc/.local/src/emacs/src/emacs -Q -batch -seccomp ../test/src/emacs-resources/seccomp-filter.bpf [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Breakpoint 3, pdumper_load (dump_filename=0x555555ed99f0 "/home/blc/.local/src/emacs/src/emacs.pdmp") at pdumper.c:5263 5263 const struct timespec start_time = current_timespec (); current_timespec () at gettime.c:47 47 gettime (&ts); gettime (ts=0x7fffffffd8b0) at gettime.c:32 32 clock_gettime (CLOCK_REALTIME, ts); __GI___clock_gettime (clock_id=0, tp=0x7fffffffd8b0) at ../sysdeps/unix/sysv/linux/clock_gettime.c:38 38 ../sysdeps/unix/sysv/linux/clock_gettime.c: No such file or directory. Program terminated with signal SIGSYS, Bad system call. The program no longer exists. --=-=-= Content-Type: text/plain Let me know if you'd like me to test anything further. Thanks, -- Basil In GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 1.16.0, Xaw3d scroll bars) of 2021-04-11 built on tia Repository revision: 686c366f8a63c448d06e5f08d604374fb316bc57 Repository branch: master Windowing system distributor 'The X.Org Foundation', version 11.0.12010000 System Description: Debian GNU/Linux bullseye/sid Configured using: 'configure 'CC=ccache gcc' 'CFLAGS=-O0 -g3 -ggdb -gdwarf-4' --prefix=/home/blc/.local --enable-checking=yes,glyphs --enable-check-lisp-object-type --with-x-toolkit=lucid --with-file-notification=yes --with-x' Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS X11 XAW3D XDBE XIM XPM LUCID ZLIB Important settings: value of $LANG: en_IE.UTF-8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8-unix Features: (shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs rfc822 mml mml-sec epa derived epg epg-config gnus-util rmail rmail-loaddefs auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs password-cache json map text-property-search time-date subr-x seq byte-opt gv bytecomp byte-compile cconv mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader cl-loaddefs cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils iso-transl tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode elisp-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray cl-preloaded nadvice button loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote threads dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting cairo x-toolkit x multi-tty make-network-process emacs) --=-=-=-- ------------=_1618167001-15696-1--