GNU bug report logs - #18350
/bin/cat segfault

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: David King <dave <at> twinstrata.com>
To: bug-coreutils <at> gnu.org
Subject: /bin/cat segfault
Date: Thu, 28 Aug 2014 19:40:39 -0400

[Message part 1 (text/plain, inline)]

I have recently upgraded from Ubuntu 10.?? to 12.?? to 14.04.

Anytime I run "/bin/cat", it segfaults:

king <at> cloud-laptop:~/workspace$ cat foo
Segmentation fault (core dumped)

king <at> 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 <at> 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

[Message part 2 (text/html, inline)]

Message #8 received at 18350 <at> debbugs.gnu.org (full text, mbox):

From: Pádraig Brady <P <at> draigBrady.com>
To: David King <dave <at> twinstrata.com>
Cc: 18350 <at> debbugs.gnu.org
Subject: Re: bug#18350: /bin/cat segfault
Date: Fri, 29 Aug 2014 11:27:33 +0100

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 <at> cloud-laptop:~/workspace$ cat foo
> Segmentation fault (core dumped)
> 
> king <at> 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 <at> 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.

Message #15 received at 18350 <at> debbugs.gnu.org (full text, mbox):

From: Bob Proulx <bob <at> proulx.com>
To: David King <dave <at> twinstrata.com>, 18350 <at> debbugs.gnu.org
Subject: Re: bug#18350: /bin/cat segfault
Date: Fri, 29 Aug 2014 10:36:38 -0600

David King wrote:
> king <at> 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

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