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** [tickets:#1661] log: deadlock when two threads call saLogStreamClose**
**Status:** accepted
**Milestone:** 4.6.2
**Created:** Fri Jan 08, 2016 01:28 PM UTC by Mathi Naickan
**Last Updated:** Fri Jan 08, 2016 01:28 PM UTC
**Owner:** Mathi Naickan
A deadlock can occur when two threads call saLogStreamClose simultaneously.
Thread1#0 0x00007fa5c2c807bc in __lll_lock_wait () from /lib64/libpthread.so.0
#1 0x00007fa5c2c7c489 in _L_lock_918 () from /lib64/libpthread.so.0 #2
0x00007fa5c2c7c2b0 in pthread_mutex_lock () from /lib64/libpthread.so.0 #3
0x00007fa5c30b034f in saLogStreamClose (logStreamHandle=4246732801) at
lga_api.c:1344
Thread2 #0 0x00007fa5c2c80010 in sem_wait () from /lib64/libpthread.so.0
(gdb) bt #0 0x00007fa5c2c80010 in sem_wait () from /lib64/libpthread.so.0 #1
0x00007fa5c1c2c762 in hm_block_me (cell=cell@entry=0xc8d980,
pool_id=pool_id@entry=0 '\000') at hj_hdl.c:696 #2 0x00007fa5c1c2c8dd in
ncshm_destroy_hdl (id=id@entry=NCS_SERVICE_ID_LGA, uhdl=4246732801) at
hj_hdl.c:366 #3 0x00007fa5c30b0b89 in lga_log_stream_hdl_rec_del
(list_head=list_head@entry=0xca4870,
rm_node=rm_node@entry=0xcd7ba0) at lga_util.c:486 #4
0x00007fa5c30b035b in saLogStreamClose (logStreamHandle=4246732801) at
lga_api.c:1349
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