From unknown Sat Jun 21 05:18:27 2025 X-Loop: help-debbugs@gnu.org Subject: bug#18350: /bin/cat segfault Resent-From: David King Original-Sender: "Debbugs-submit" Resent-CC: bug-coreutils@gnu.org Resent-Date: Thu, 28 Aug 2014 23:55:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 18350 X-GNU-PR-Package: coreutils X-GNU-PR-Keywords: To: 18350@debbugs.gnu.org X-Debbugs-Original-To: bug-coreutils@gnu.org Received: via spool by submit@debbugs.gnu.org id=B.140927005518001 (code B ref -1); Thu, 28 Aug 2014 23:55:02 +0000 Received: (at submit) by debbugs.gnu.org; 28 Aug 2014 23:54:15 +0000 Received: from localhost ([127.0.0.1]:52906 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XN9W7-0004gC-CO for submit@debbugs.gnu.org; Thu, 28 Aug 2014 19:54:15 -0400 Received: from eggs.gnu.org ([208.118.235.92]:52901) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XN9JT-0004NM-Cu for submit@debbugs.gnu.org; Thu, 28 Aug 2014 19:41:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XN9JE-0002KK-Vd for submit@debbugs.gnu.org; Thu, 28 Aug 2014 19:41:01 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-0.5 required=5.0 tests=BAYES_05,HTML_MESSAGE autolearn=disabled version=3.3.2 Received: from lists.gnu.org ([2001:4830:134:3::11]:58459) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XN9JE-0002KF-SX for submit@debbugs.gnu.org; Thu, 28 Aug 2014 19:40:52 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54612) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XN9J8-00011I-KO for bug-coreutils@gnu.org; Thu, 28 Aug 2014 19:40:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XN9J2-0002Jh-FP for bug-coreutils@gnu.org; Thu, 28 Aug 2014 19:40:46 -0400 Received: from mail-vc0-f171.google.com ([209.85.220.171]:53621) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XN9J2-0002Jd-Az for bug-coreutils@gnu.org; Thu, 28 Aug 2014 19:40:40 -0400 Received: by mail-vc0-f171.google.com with SMTP id id10so1714330vcb.2 for ; Thu, 28 Aug 2014 16:40:39 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to :content-type; bh=QqjL7hUFboM7Gl4ueIQ7ENTZQf8lPdixYZI/AgZQjX4=; b=YrrjmnyIkaK3vHpvuHf9UPjcTIYfs558ZNSpPqIhNxpBK4FedPg/bwyBjf1UzOXR9Q 51T/ZHEF5Yt8uJjGQuimvUSYVtjFZcUw2odouEHQHGbj7hlk3egV2ds/rfEBbx+gfNYs 7JhiiJFg+Bna5Bp7RGBD4JeM0HXJ24cxMku6irsxlzWL5c1nO6rTlnaimwHd4fSyPkYh RUjkc3e8yfBnKCGw9NsJmbUZ5NGN5qVf7Ru3/gMg2RCsCqORhGF+lq5Ly1NHzndaI1l0 TbA9V+37bO9O0fw41kV3PbCLEkT6dad0c0bH6EkB7n9uQec3zItzaJ0HmIpgLWYDAp47 3T6g== X-Gm-Message-State: ALoCoQnomAci/vfQocqmpMcW4jslFVfgkhhTJ+nBbThi9PvHG1Obvj5LtqtBK4AYdPfdVrr3Kibe MIME-Version: 1.0 X-Received: by 10.52.0.132 with SMTP id 4mr2069012vde.10.1409269239300; Thu, 28 Aug 2014 16:40:39 -0700 (PDT) Received: by 10.221.40.6 with HTTP; Thu, 28 Aug 2014 16:40:39 -0700 (PDT) Date: Thu, 28 Aug 2014 19:40:39 -0400 Message-ID: From: David King Content-Type: multipart/alternative; boundary=047d7b41426066ddbe0501b91034 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -4.1 (----) X-Mailman-Approved-At: Thu, 28 Aug 2014 19:54:09 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 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: -5.0 (-----) --047d7b41426066ddbe0501b91034 Content-Type: text/plain; charset=UTF-8 I have recently upgraded from Ubuntu 10.?? to 12.?? to 14.04. Anytime I run "/bin/cat", it segfaults: king@cloud-laptop:~/workspace$ cat foo Segmentation fault (core dumped) king@cloud-laptop:~/workspace$ file /bin/cat /bin/cat: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0c0f211bfc6205fcb4c9f68ff91ebc6920d3a827, stripped king@cloud-laptop:~/workspace$ uname -a Linux cloud-laptop 3.2.0-67-generic-pae #101-Ubuntu SMP Tue Jul 15 18:04:54 UTC 2014 i686 i686 i686 GNU/Linux --047d7b41426066ddbe0501b91034 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I have recently upgraded from Ubuntu 10.?? to 12.?? t= o 14.04.

Anytime I run "/bin/cat", it segfaults:
=
king@cloud-laptop:~/workspace$ cat foo
Segmentation fault (core dump= ed)

king@cloud-laptop:~/workspace$ file /bin/cat
/bin/cat: ELF 32-bit LS= B=C2=A0 executable, Intel 80386, version 1 (SYSV), dynamically linked (uses= shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=3D0c0f211bfc6205fcb4c9f6= 8ff91ebc6920d3a827, stripped


king@cloud-laptop:~/workspace$ uname -a
Linux cloud-laptop 3.2.0= -67-generic-pae #101-Ubuntu SMP Tue Jul 15 18:04:54 UTC 2014 i686 i686 i686= GNU/Linux

--047d7b41426066ddbe0501b91034-- From unknown Sat Jun 21 05:18:27 2025 X-Loop: help-debbugs@gnu.org Subject: bug#18350: /bin/cat segfault Resent-From: =?UTF-8?Q?P=C3=A1draig?= Brady Original-Sender: "Debbugs-submit" Resent-CC: bug-coreutils@gnu.org Resent-Date: Fri, 29 Aug 2014 10:28:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18350 X-GNU-PR-Package: coreutils X-GNU-PR-Keywords: To: David King Cc: 18350@debbugs.gnu.org Received: via spool by 18350-submit@debbugs.gnu.org id=B18350.140930806414235 (code B ref 18350); Fri, 29 Aug 2014 10:28:02 +0000 Received: (at 18350) by debbugs.gnu.org; 29 Aug 2014 10:27:44 +0000 Received: from localhost ([127.0.0.1]:53149 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XNJPE-0003hV-6m for submit@debbugs.gnu.org; Fri, 29 Aug 2014 06:27:44 -0400 Received: from mail2.vodafone.ie ([213.233.128.44]:36773) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XNJPB-0003hD-3W; Fri, 29 Aug 2014 06:27:41 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApQBAJtUAFRtT0ot/2dsb2JhbAANRAqHM8kggyABgSeEewEBBCMPAUYQCw0BCgICBRYLAgIJAwIBAgFFBg0BBwEBiEOmFHiUOxeBLI1EGkIHgnmBUwEEpDyRHIFzgUcBAQE Received: from unknown (HELO [192.168.1.41]) ([109.79.74.45]) by mail2.vodafone.ie with ESMTP; 29 Aug 2014 11:27:33 +0100 Message-ID: <54005595.8080605@draigBrady.com> Date: Fri, 29 Aug 2014 11:27:33 +0100 From: =?UTF-8?Q?P=C3=A1draig?= Brady User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 MIME-Version: 1.0 References: In-Reply-To: X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 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: 0.0 (/) tag 18350 notabug close 18350 stop On 08/29/2014 12:40 AM, David King wrote: > I have recently upgraded from Ubuntu 10.?? to 12.?? to 14.04. > > Anytime I run "/bin/cat", it segfaults: > > king@cloud-laptop:~/workspace$ cat foo > Segmentation fault (core dumped) > > king@cloud-laptop:~/workspace$ file /bin/cat > /bin/cat: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), > dynamically linked (uses shared libs), for GNU/Linux 2.6.24, > BuildID[sha1]=0c0f211bfc6205fcb4c9f68ff91ebc6920d3a827, stripped > > > king@cloud-laptop:~/workspace$ uname -a > Linux cloud-laptop 3.2.0-67-generic-pae #101-Ubuntu SMP Tue Jul 15 18:04:54 > UTC 2014 i686 i686 i686 GNU/Linux This probably isn't a bug with cat or we would have heard about it long ago. I'd verify that the cat binary is OK using: debsums or dpkg --verify coreutils Additionally you could identify where it core dumps like: gdb -args cat foo bt thanks, Pádraig. From unknown Sat Jun 21 05:18:27 2025 X-Loop: help-debbugs@gnu.org Subject: bug#18350: /bin/cat segfault Resent-From: Bob Proulx Original-Sender: "Debbugs-submit" Resent-CC: bug-coreutils@gnu.org Resent-Date: Fri, 29 Aug 2014 16:37:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18350 X-GNU-PR-Package: coreutils X-GNU-PR-Keywords: notabug To: David King , 18350@debbugs.gnu.org Received: via spool by 18350-submit@debbugs.gnu.org id=B18350.140933020627032 (code B ref 18350); Fri, 29 Aug 2014 16:37:01 +0000 Received: (at 18350) by debbugs.gnu.org; 29 Aug 2014 16:36:46 +0000 Received: from localhost ([127.0.0.1]:53694 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XNPAL-00071v-RD for submit@debbugs.gnu.org; Fri, 29 Aug 2014 12:36:46 -0400 Received: from joseki.proulx.com ([216.17.153.58]:44317) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XNPAJ-00071i-Da for 18350@debbugs.gnu.org; Fri, 29 Aug 2014 12:36:44 -0400 Received: from hysteria.proulx.com (hysteria.proulx.com [192.168.230.119]) by joseki.proulx.com (Postfix) with ESMTP id F22D721225; Fri, 29 Aug 2014 10:36:38 -0600 (MDT) Received: by hysteria.proulx.com (Postfix, from userid 1000) id B4BFB2DC39; Fri, 29 Aug 2014 10:36:38 -0600 (MDT) Date: Fri, 29 Aug 2014 10:36:38 -0600 From: Bob Proulx Message-ID: <20140829103421462751543@bob.proulx.com> References: <54005595.8080605@draigBrady.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54005595.8080605@draigBrady.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 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: 0.0 (/) David King wrote: > king@cloud-laptop:~/workspace$ cat foo > Segmentation fault (core dumped) Problems such as these have sometimes occurred when the hardware has started to fail. Such as for failing memory or other hardware caused problems. I would run memtest on the system. I would inspect kernel logs for hardware errors. Bob