Question : SIGSEGV memset() from libc.so.6

["irvin tsang" <irvin_smile at hotmail dot com>]

Hi All,
i am not the expert on gibc.  i don't know whether this question is too 
trivial or?  Please let me know whether the question is a valid one or it 
has been solved by some way?

thank for your help!
irvin

--- i t <test11_test11@yahoo.com> wrote:
> Hi,
> i have the problem with libc.so.6 which similiar to
> the mail thread dated back in 2002 :
> http://sources.redhat.com/ml/libc-alpha/2002-07/msg00044.html
>
> however, i cannot find the answer/conclusion from
> that
> thread.
>
> here is the gdb output
>
>
> GNU gdb 6.1-debian
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General
> Public License, and you are
> welcome to change it and/or distribute copies of it
> under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show
> warranty" for details.
> This GDB was configured as "i386-linux"...Using host
> libthread_db library "/lib/libthread_db.so.1".
> (gdb) run
> Starting program: testprogram
> [Thread debugging using libthread_db enabled]
> [New Thread 16384 (LWP 6802)]
> [New Thread 32769 (LWP 6804)]
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 32769 (LWP 6804)]
> 0x4441e3ab in memset () from /lib/libc.so.6
> (gdb) thread apply all where
> Thread 2 (Thread 32769 (LWP 6804)):
> #0  0x4441e3ab in memset () from /lib/libc.so.6
> #1  0x42d83036 in pthread_allocate_stack () from
> /lib/libpthread.so.0
> #2  0x42d8311c in pthread_handle_create () from
> /lib/libpthread.so.0
> #3  0x42d82c18 in __pthread_manager () from
> /lib/libpthread.so.0
> #4  0x42d82d57 in __pthread_manager_event () from
> /lib/libpthread.so.0
> #5  0x4447e64a in clone () from /lib/libc.so.6

> Thread 1 (Thread 16384 (LWP 6802)):
> #0  0x42d855f4 in __pthread_sigsuspend () from
> /lib/libpthread.so.0
> #1  0x42d853b8 in __pthread_wait_for_restart_signal
> ()
>    from /lib/libpthread.so.0
> #2  0x42d84c32 in pthread_create@@GLIBC_2.1 () from
> /lib/libpthread.so.0
> #3  0x442a9e0e in taskSpawn (name=0x4380ab61
> "startup", priority=255,
>     options=0, stacksize=0, entryPt=0xfffffffc,
> arg1=-4, arg2=-4, arg3=-4,
>     arg4=-4, arg5=-4, arg6=-4, arg7=-4, arg8=-4,
> arg9=-4, arg10=-4)
>     at /vobs/vel/src/taskLib.c:298
> #4  0x4380990b in main (argc=2, argv=0xbffffda4)
>     at /vobs/startup/src/startup.c:502
> #5  0x443bcdc6 in __libc_start_main () from
> /lib/libc.so.6
> #6  0x080497a1 in _start ()
> #0  0x4441e3ab in memset () from /lib/libc.so.6
> (gdb) quit
> The program is running.  Exit anyway? (y or n) y
> # uname -a
> Linux efi-linux 2.4.26 #1 Wed Apr 28 11:39:23 PDT
> 2004
> i686 GNU/Linux
>
> my program is complied with gcc 3.3.3, debian, glibc
> 2.3.2
>
> something may not be releated is, i have noticed
> that
> the size of libpthread-0.9.so(glibc 2.2.5) is 102172
> byte, however, the libpthread-0.10.so is 81063.  I
> thought the usual case is the latter version will be
> larger?
>
> Thanks for the help!
> irvin

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