Continuing with the CR code I now get a crash which can be easily reproduced
using orte/test/system/orte_barrier.c
I get:
orte_barrier: ../../../../../opal/class/opal_list.h:547: _opal_list_append:
Assertion `0 == item->opal_list_item_refcount' failed.
[dcbz:05085] *** Process received signal ***
[dcbz:05085] Signal: Aborted (6)
[dcbz:05085] Signal code: (-6)
[dcbz:05085] [ 0] /lib64/libpthread.so.0(+0xf750)[0x7f95bca0b750]
[dcbz:05085] [ 1] /lib64/libc.so.6(gsignal+0x39)[0x7f95bc672c59]
[dcbz:05085] [ 2] /lib64/libc.so.6(abort+0x148)[0x7f95bc674368]
[dcbz:05085] [ 3] /lib64/libc.so.6(+0x2ebb6)[0x7f95bc66bbb6]
[dcbz:05085] [ 4] /lib64/libc.so.6(+0x2ec62)[0x7f95bc66bc62]
[dcbz:05085] [ 5]
/home/adrian/devel/openmpi-trunk/lib/libopen-rte.so.0(+0x86975)[0x7f95bcfbd975]
[dcbz:05085] [ 6]
/home/adrian/devel/openmpi-trunk/lib/libopen-rte.so.0(+0x86d9a)[0x7f95bcfbdd9a]
[dcbz:05085] [ 7]
/home/adrian/devel/openmpi-trunk/lib/libopen-pal.so.0(+0x8c831)[0x7f95bcca5831]
[dcbz:05085] [ 8]
/home/adrian/devel/openmpi-trunk/lib/libopen-pal.so.0(+0x8caa3)[0x7f95bcca5aa3]
[dcbz:05085] [ 9]
/home/adrian/devel/openmpi-trunk/lib/libopen-pal.so.0(opal_libevent2021_event_base_loop+0x2c1)[0x7f95bcca611f]
[dcbz:05085] [10]
/home/adrian/devel/openmpi-trunk/lib/libopen-rte.so.0(+0x2233b)[0x7f95bcf5933b]
[dcbz:05085] [11] /lib64/libpthread.so.0(+0x7f33)[0x7f95bca03f33]
[dcbz:05085] [12] /lib64/libc.so.6(clone+0x6d)[0x7f95bc731ead]
[dcbz:05085] *** End of error message ***
--------------------------------------------------------------------------
orterun noticed that process rank 0 with PID 5085 on node dcbz exited on signal
6 (Aborted).
--------------------------------------------------------------------------
and in gdb
[New LWP 5086]
[New LWP 5085]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `system/orte_barrier'.
Program terminated with signal SIGABRT, Aborted.
#0 0x00007f95bc672c59 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
56 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
(gdb) bt
#0 0x00007f95bc672c59 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00007f95bc6744a8 in __GI_abort () at abort.c:118
#2 0x00007f95bc66bbb6 in __assert_fail_base (fmt=0x7f95bc7b8ea8 "%s%s%s:%u:
%s%sAssertion `%s' failed.\n%n",
assertion=assertion@entry=0x7f95bd06d6c0 "0 ==
item->opal_list_item_refcount",
file=file@entry=0x7f95bd06d600 "../../../../../opal/class/opal_list.h",
line=line@entry=547,
function=function@entry=0x7f95bd06d9d0 <__PRETTY_FUNCTION__.4605>
"_opal_list_append") at assert.c:92
#3 0x00007f95bc66bc62 in __GI___assert_fail (assertion=0x7f95bd06d6c0 "0 ==
item->opal_list_item_refcount",
file=0x7f95bd06d600 "../../../../../opal/class/opal_list.h", line=547,
function=0x7f95bd06d9d0 <__PRETTY_FUNCTION__.4605> "_opal_list_append") at
assert.c:101
#4 0x00007f95bcfbd975 in _opal_list_append (list=0x7f95bd2b9408
<orte_grpcomm_base+8>, item=0x1f35be0,
FILE_NAME=0x7f95bd06d718
"../../../../../orte/mca/grpcomm/bad/grpcomm_bad_module.c", LINENO=163)
at ../../../../../opal/class/opal_list.h:547
#5 0x00007f95bcfbdd9a in process_barrier (fd=-1, args=4, cbdata=0x1f35ed0) at
../../../../../orte/mca/grpcomm/bad/grpcomm_bad_module.c:163
#6 0x00007f95bcca5831 in event_process_active_single_queue (base=0x1ef63a0,
activeq=0x1ef6360)
at ../../../../../../opal/mca/event/libevent2021/libevent/event.c:1367
#7 0x00007f95bcca5aa3 in event_process_active (base=0x1ef63a0) at
../../../../../../opal/mca/event/libevent2021/libevent/event.c:1437
#8 0x00007f95bcca611f in opal_libevent2021_event_base_loop (base=0x1ef63a0,
flags=1)
at ../../../../../../opal/mca/event/libevent2021/libevent/event.c:1645
#9 0x00007f95bcf5933b in orte_progress_thread_engine (obj=0x7f95bd2b9160
<orte_progress_thread>) at ../../orte/runtime/orte_init.c:180
#10 0x00007f95bca03f33 in start_thread (arg=0x7f95bbb0d700) at
pthread_create.c:309
#11 0x00007f95bc731ead in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
(gdb)
As far as I understand it seems to call opal_list_append() twice in
orte/mca/grpcomm/bad/grpcomm_bad_module.c:163
opal_list_append(&orte_grpcomm_base.active_colls, &coll->super);
I have no idea how to fix this.
Adrian
