[Valgrind-users] [Kai Henningsen] Bug#229925: valgrind: segfaults starting with Objective-C debug info

[<ar...@de...>]

Package: valgrind
Version: 1:2.1.0-2
Severity: normal

Valgrind output:
-------------------------------------------
==24475== Memcheck, a memory error detector for x86-linux.
==24475== Copyright (C) 2002-2003, and GNU GPL'd, by Julian Seward.
==24475== Using valgrind-2.1.0, a program supervision framework for x86-linux.
==24475== Copyright (C) 2000-2003, and GNU GPL'd, by Julian Seward.
==24475== 
==24475== My PID = 24475, parent PID = 5400.  Prog and args are:
==24475==    ./WServer-gdb
==24475== 
==24475== Command line
==24475==    ./WServer-gdb
==24475== Startup, with flags:
==24475==    --suppressions=/usr/lib/valgrind/default.supp
==24475==    --logfile=/home/kai/cats/valgrind.out
==24475==    --trace-children=yes
==24475==    --leak-check=yes
==24475==    -v
==24475==    --num-callers=100
==24475==    --show-reachable=yes
==24475==    --trace-pthread=all
==24475== Reading syms from /home/kai/cats/WServer-gdb
 @@ don't know what type 'S' is
 @@ parsing S(352,12)=r(0,1);0000000000000;0000000000006; gave NULL type ((352,12)=r(0,1);0000000000000;0000000000006; remains)
 @@ parsing (352,11)=@s56;@S;S(352,12)=r(0,1);0000000000000;0000000000006; gave NULL type ((352,12)=r(0,1);0000000000000;0000000000006; remains)
 @@ parsing (352,10)=(352,11)=@s56;@S;S(352,12)=r(0,1);0000000000000;0000000000006; gave NULL type ((352,12)=r(0,1);0000000000000;0000000000006; remains)
--24475-- INTERNAL ERROR: Valgrind received a signal 11 (SIGSEGV) - exiting
--24475-- si_code=1 Fault EIP: 0x40188598; Faulting address: 0x0

valgrind: the `impossible' happened:
   Killed by fatal signal
Basic block ctr is approximately 0
==24475==    at 0x401790B8: ???
==24475==    by 0x401790B7: ???
==24475==    by 0x401790EA: ???
==24475==    by 0x40180653: ???
==24475==    by 0x4020E293: ???

sched status:

Thread 1: status = Runnable, associated_mx = 0x0, associated_cv = 0x0
==24475==    at 0x40180EA0: ???
==24475==    by 0x4000C0DD: ???
==24475==    by 0x4000C279: ???
==24475==    by 0x40000C5C: ???


Note: see also the FAQ.txt in the source distribution.
It contains workarounds to several common problems.

If that doesn't help, please report this bug to: valgrind.kde.org

In the bug report, send all the above text, the valgrind
version, and what Linux distro you are using.  Thanks.

-------------------------------------------

I can recognize that it's parsing the Dwarf (2?) debug info, but not
more.

The same program works stripped.

gcc used is gcc version 2.95.4 20011002 (Debian prerelease).

-- System Information
Debian Release: 3.0
Architecture: i386
Kernel: Linux lisbeth 2.4.20+lisbeth.20031125 #1 Tue Nov 25 00:21:54 CET 2003 i686
Locale: LANG=C, LC_CTYPE=C

Versions of packages valgrind depends on:
ii  libc6                       2.3.2.ds1-11 GNU C Library: Shared libraries an