DestroyMagickWand() assertion fails, application dumps core

[sumit.d@vcloudx.com]

Please help. ImageMagick version 7.0.7-39. The issue is not reproducible. Here is the stack trace:

#0 0x00007f22acd12428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#1 0x00007f22acd1402a in __GI_abort () at abort.c:89
#2 0x00007f22acd0abd7 in __assert_fail_base (fmt=<optimized out>, assertion=assertion@entry=0x7f22ac54d530 "semaphore_info != (SemaphoreInfo *) NULL",
file=file@entry=0x7f22ac54d4e8 "MagickCore/semaphore.c", line=line@entry=295,
function=function@entry=0x7f22ac54d640 <__PRETTY_FUNCTION__.10993> "LockSemaphoreInfo") at assert.c:92
#3 0x00007f22acd0ac82 in __GI___assert_fail (assertion=assertion@entry=0x7f22ac54d530 "semaphore_info != (SemaphoreInfo *) NULL",
file=file@entry=0x7f22ac54d4e8 "MagickCore/semaphore.c", line=line@entry=295,
function=function@entry=0x7f22ac54d640 <__PRETTY_FUNCTION__.10993> "LockSemaphoreInfo") at assert.c:101
#4 0x00007f22ac3e156c in LockSemaphoreInfo (semaphore_info=<optimized out>) at MagickCore/semaphore.c:295
#5 0x00007f22b09080e0 in RelinquishWandId (id=63908) at MagickWand/wand.c:152
#6 0x00007f22b08ac164 in DestroyMagickWand (wand=0x7f225c0008c0) at MagickWand/magick-wand.c:177

[magick]

Parallel algorithm issues are notoriously difficult to debug. The only hope of addressing this issue would be if we can reproduce the problem.