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Subject: Re: [OMPI devel] Intermittent mpirun crash?
From: George Bosilca (bosilca_at_[hidden])
Date: 2014-01-30 11:58:42


I got something similar 2 days ago, with a large software package abusing of MPI_Waitany/MPI_Waitsome (that was working seamlessly a month ago). I had to find a quick fix. Upon figuring out that turning the leave_pinned off fixes the problem, I did not investigate any further.

Do you see a similar behavior?

  George.

On Jan 30, 2014, at 17:26 , Rolf vandeVaart <rvandevaart_at_[hidden]> wrote:

> I am seeing this happening to me very intermittently. Looks like mpirun is getting a SEGV. Is anyone else seeing this?
> This is 1.7.4 built yesterday. (Note that I added some stuff to what is being printed out so the message is slightly different than 1.7.4 output)
>
> mpirun - -np 6 -host drossetti-ivy0,drossetti-ivy1,drossetti-ivy2,drossetti-ivy3 --mca btl_openib_warn_default_gid_prefix 0 -- `pwd`/src/MPI_Waitsome_p_c
> MPITEST info (0): Starting: MPI_Waitsome_p: Persistent Waitsome using two nodes
> MPITEST_results: MPI_Waitsome_p: Persistent Waitsome using two nodes all tests PASSED (742)
> [drossetti-ivy0:10353] *** Process (mpirun)received signal ***
> [drossetti-ivy0:10353] Signal: Segmentation fault (11)
> [drossetti-ivy0:10353] Signal code: Address not mapped (1)
> [drossetti-ivy0:10353] Failing at address: 0x7fd31e5f208d
> [drossetti-ivy0:10353] End of signal information - not sleeping
> gmake[1]: *** [MPI_Waitsome_p_c] Segmentation fault (core dumped)
> gmake[1]: Leaving directory `/geppetto/home/rvandevaart/public/ompi-tests/trunk/intel_tests'
>
> (gdb) where
> #0 0x00007fd31f620807 in ?? () from /lib64/libgcc_s.so.1
> #1 0x00007fd31f6210b9 in _Unwind_Backtrace () from /lib64/libgcc_s.so.1
> #2 0x00007fd31fb2893e in backtrace () from /lib64/libc.so.6
> #3 0x00007fd320b0d622 in opal_backtrace_buffer (message_out=0x7fd31e5e33a0, len_out=0x7fd31e5e33ac)
> at ../../../../../opal/mca/backtrace/execinfo/backtrace_execinfo.c:57
> #4 0x00007fd320b0a794 in show_stackframe (signo=11, info=0x7fd31e5e3930, p=0x7fd31e5e3800) at ../../../opal/util/stacktrace.c:354
> #5 <signal handler called>
> #6 0x00007fd31e5f208d in ?? ()
> #7 0x00007fd31e5e46d8 in ?? ()
> #8 0x000000000000c2a8 in ?? ()
> #9 0x0000000000000000 in ?? ()
>
>
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