Segmentation fault

[Guillaume]

hehe, i delete the old kernel. And then I cant boot on.

the strace return this logs maybe it can help someone! :
==10859== My PID = 10859, parent PID = 10646. Prog and args are:
==10859== ./soldatserver
==10859==
==10859== Valgrind library directory: /usr/lib/valgrind
==10859== Command line
==10859== ./soldatserver
==10859== Startup, with flags:
==10859== -v
==10859== --log-file=soldatlogmem.log
==10859== Contents of /proc/version:
==10859== Linux version 2.6.16-1.2108_FC4 (bhcole at h.redhat.com) (gcc
version 4.0.2 20051125 (Red Hat 4.0.2-8)) #1 Thu May 4 23:52:01 EDT
2006
==10859== Reading syms from /data/soldatserver249/soldatserver (0x8048000)
==10859== object doesn't have a symbol table
==10859== object doesn't have any debug info
==10859== Reading syms from /lib/ld-2.3.6.so (0x1B8E4000)
==10859== object doesn't have any debug info
==10859== Reading syms from /usr/lib/valgrind/stage2 (0xB0000000)
==10859== Reading syms from /lib/ld-2.3.6.so (0xB1000000)
==10859== object doesn't have any debug info
==10859== Reading syms from /usr/lib/valgrind/vgskin_memcheck.so (0xB7C25000)
==10859== Reading syms from /lib/libc-2.3.6.so (0xB7E85000)
==10859== object doesn't have any debug info
==10859== Reading syms from /lib/libdl-2.3.6.so (0xB7FAF000)
==10859== object doesn't have any debug info
==10859== Reading suppressions file: /usr/lib/valgrind/default.supp
==10859==
==10859== Reading syms from /usr/lib/valgrind/vg_inject.so (0x1B901000)
==10859== Reading syms from /usr/lib/valgrind/vgpreload_memcheck.so (0x1B906000)
==10859== Reading syms from /lib/libNoVersion-2.3.6.so (0x1B90D000)
==10859== object doesn't have any debug info
==10859== Reading syms from
/lib/obsolete/linuxthreads/libpthread-0.10.so (0x1B918000)
==10859== object doesn't have any debug info
==10859== Reading syms from /lib/libdl-2.3.6.so (0x46B000)
==10859== object doesn't have any debug info
==10859== Reading syms from /lib/obsolete/linuxthreads/libc-2.3.6.so
(0x1B96C000)
==10859== object doesn't have any debug info
==10859== Conditional jump or move depends on uninitialised value(s)
==10859== at 0x1B9D6B77: strstr (in /lib/obsolete/linuxthreads/libc-2.3.6.so)
==10859== by 0x1B91FF10: pthread_initialize (in
/lib/obsolete/linuxthreads/libpthread-0.10.so)
==10859== by 0x1B925CA1: (within /lib/obsolete/linuxthreads/libpthread-0.10.so)
==10859== by 0x1B91BAE9: (within /lib/obsolete/linuxthreads/libpthread-0.10.so)
==10859== by 0x1B8F1D5A: call_init (in /lib/ld-2.3.6.so)
==10859== by 0x1B8F1E7C: _dl_init (in /lib/ld-2.3.6.so)
==10859== by 0x1B8E47CE: (within /lib/ld-2.3.6.so)
==10859==
==10859== Invalid read of size 1
==10859== at 0x80533C5: (within /data/soldatserver249/soldatserver)
==10859== by 0x1B9812AE: __libc_start_main (in
/lib/obsolete/linuxthreads/libc-2.3.6.so)
==10859== by 0x8053743: (within /data/soldatserver249/soldatserver)
==10859== Address 0x52BFEA14 is just below %esp. Possibly a bug in GCC/G++
==10859== v 2.96 or 3.0.X. To suppress, use: --workaround-gcc296-bugs=yes
==10859== TRANSLATE: 0x1B9D24FD redirected to 0x1B909AE6



2006/5/22, Mogens Kjaer <mk at crc.dk>:
> Guillaume wrote:
> > hi,
> > I have a problem since (i tought) i upgrade my kernel to the last
> > release... When i launch specific program it show me an error :
> > "segmentation fault"
> >
> > I have 2 questions:
> >
> > 1) Is it possible to revert to my previous kernel version,and if yes,
> > how to? (i download from a site  kernel.i686 2.6.15-1.1833_FC4.rpm but
> > when i try to install it it fail...)
>
> Most likely, the old kernel is still installed.
>
> rpm -qa|fgrep kernel
>
> should list the kernels installed.
>
> To boot an old kernel, stop grub at the booting stage and
> see if the old kernel is listed.
>
> >
> > 2) How have to do to trace the error program & find what is wrong...
> >
> > I run Fedora core 4 on a pentium 3 proc. The actual kernel installed
> > is 2.6.16-1.2108_FC4.
>
> You could try strace and see what happens.
>
> boot old kernel:
>
> strace -o oldkernel.log yourprogram
>
> boot new kernel:
>
> strace -o newkernel.log yourprogram
>
> compare the two files newkernel.log and oldkernel.log
>
> Mogens
>
>
> --
> Mogens Kjaer, Carlsberg A/S, Computer Department
> Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark
> Phone: +45 33 27 53 25, Fax: +45 33 27 47 08
> Email: mk at crc.dk Homepage: http://www.crc.dk
>
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