I'm trying to track down the cause of a seg fault in my MPI program.
Here's what happens with valgrind.
% mpirun -n 27 ../../valgrind-3.4.1/bin/valgrind --kernel-
variant=bproc mc3_op
ERROR: ld.so: object '/usr/projects/dark/gam/valgrind/amd64-linux/
libmpiwrap.so' from LD_PRELOAD cannot be preloaded: ignored.
[many other errors reported: conditional jump or move...;
uninitialized data; all trace to library routines]
[program nearly completes and then:]
--30441-- VALGRIND INTERNAL ERROR: Valgrind received a signal 11
(SIGSEGV) - exiting
--30441-- si_code=80; Faulting address: 0x0; sp: 0x403087d60
valgrind: the 'impossible' happened:
Killed by fatal signal
==30441== at 0x380323E0: vgPlain_arena_free (m_mallocfree.c:218)
==30441== by 0x38001B17: die_and_free_mem (mc_malloc_wrappers.c:123)
==30441== by 0x3804AEB4: vgPlain_scheduler (scheduler.c:1303)
==30441== by 0x3804D44E: run_a_thread_NORETURN (syswrap-linux.c:89)
sched status:
running_tid=1
Thread 1: status = VgTs_Runnable
==30441== at 0x4A1A69C: operator delete[](void*)
(vg_replace_malloc.c:364)
==30441== by 0x4153B5: Particles::~Particles() (Particles.cxx:60)
==30441== by 0x40A7B8: main (mc3.cxx:167)
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: www.valgrind.org
In the bug report, send all the above text, the valgrind
version, and what Linux distro you are using. Thanks.
% ../../valgrind/bin/valgrind --version
valgrind-3.4.1
% uname -a
Linux cy-1.lanl.gov 2.6.14-8.BProcPerfctr_FC3smp #1 SMP Mon Oct 1
15:20:42 MDT 2007 x86_64 x86_64 x86_64 GNU/Linux
==========================
Graham Mark
CCS-3
Information Sciences
Los Alamos National Laboratory
505-667-8147
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