2004-04-21 12:09:08

by Xavier Wielemans

[permalink] [raw]
Subject: abort() and exit(1) make RHEL freeze when core size limit is higher than 2 MB

[ I hope this is a relevant linux-kernel bug - I think so, all apologies if
not... ]
[ Please CC me personally if replying, I'm not subscribed to the list -
thank you ! ]

Hi all,

I encountered the following problem - when my C++ application executes the
abort() or exit(1) system instructions, if the core size limit was
previously set to more than ~2MB (ulimit -c 2000), my PC freezes totally
and must be power-cycled...

If the core limit is left untouched to 0 (default), the abort or exit
instructions are executed without problems, but of course no core file is
dumped !

If core limit is set to 2000 or less, a core file is dumped but it is
unreadable (certainly because it is trimmed to less than its actual size).

If core limit is set to 4000 or higher (including 'ulimit -c unlimited')
the machine freezes as soon as abort() or exit() are executed.

Here are my configuration details :

[wielemans@electro:wielemans] cat /etc/redhat-release
Red Hat Enterprise Linux WS release 3 (Taroon Update 1)

[wielemans@electro:wielemans] uname -a
Linux electro 2.4.21-9.0.1.EL #2 Fri Apr 16 13:51:32 CEST 2004 i686 i686
i386 GNU/Linux

[wielemans@electro:wielemans] gcc -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.2.3/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --with-system-zlib --enable-__cxa_atexit
--host=i386-redhat-linux
Thread model: posix
gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-24)

If you need more details, please ask ! Any help or idea welcome, thanks in
advance...

Have a nice day !

Willy.

Xavier Wielemans

Alterface
Avenue Alexander Fleming 10
B-1348 Louvain-la-Neuve
Belgium
http://www.alterface.com

phone: +32 10 48 00 63
fax: +32 10 48 00 69



2004-04-28 23:29:51

by Marcelo Tosatti

[permalink] [raw]
Subject: Re: abort() and exit(1) make RHEL freeze when core size limit is higher than 2 MB

On Wed, Apr 21, 2004 at 02:11:19PM +0200, Xavier Wielemans wrote:
> [ I hope this is a relevant linux-kernel bug - I think so, all apologies if
> not... ]
> [ Please CC me personally if replying, I'm not subscribed to the list -
> thank you ! ]
>
> Hi all,
>
> I encountered the following problem - when my C++ application executes the
> abort() or exit(1) system instructions, if the core size limit was
> previously set to more than ~2MB (ulimit -c 2000), my PC freezes totally
> and must be power-cycled...
>
> If the core limit is left untouched to 0 (default), the abort or exit
> instructions are executed without problems, but of course no core file is
> dumped !
>
> If core limit is set to 2000 or less, a core file is dumped but it is
> unreadable (certainly because it is trimmed to less than its actual size).
>
> If core limit is set to 4000 or higher (including 'ulimit -c unlimited')
> the machine freezes as soon as abort() or exit() are executed.
>
> Here are my configuration details :
>
> [wielemans@electro:wielemans] cat /etc/redhat-release
> Red Hat Enterprise Linux WS release 3 (Taroon Update 1)
>
> [wielemans@electro:wielemans] uname -a
> Linux electro 2.4.21-9.0.1.EL #2 Fri Apr 16 13:51:32 CEST 2004 i686 i686
> i386 GNU/Linux
>
> [wielemans@electro:wielemans] gcc -v
> Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.2.3/specs
> Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
> --infodir=/usr/share/info --enable-shared --enable-threads=posix
> --disable-checking --with-system-zlib --enable-__cxa_atexit
> --host=i386-redhat-linux
> Thread model: posix
> gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-24)
>
> If you need more details, please ask ! Any help or idea welcome, thanks in
> advance...

Xavier,

Odd. Is this the latest RH update? Maybe you can try a mainline kernel?