[stgt] tgtd stuck when trying to delete a target

[Doron Shoham]

Hi,

tgtd runs into a deadlock when trying to delete a target.

>From gdb:

#0  0x0000003c064074e5 in pthread_join () from /lib64/libpthread.so.0
#1  0x000000000041b5ad in bs_thread_close (info=0x10651fd8) at bs.c:272
#2  0x0000000000412697 in tgt_device_destroy (tid=<value optimized out>, lun=1, force=1) at target.c:587
#3  0x00000000004128b4 in tgt_target_destroy (lld_no=0, tid=1) at target.c:1731
#4  0x000000000040ff93 in tgt_mgmt (mtask=0x1064d580) at mgmt.c:85
#5  0x0000000000410263 in mtask_handler (fd=11, events=<value optimized out>, data=<value optimized out>) at mgmt.c:441
#6  0x000000000040f3c6 in main (argc=<value optimized out>, argv=<value optimized out>) at tgtd.c:236

The deadlock occurs in pthread_join () called by bs_thread_close (at bs.c line 272).

I believe that it is caused by commit: "handle pthread_create failure in backing store pthread code"
(d97cd33a7244aed71d1b618ff3e6f826479d6163)

Tomo - can you please check it out?


Thanks,
Doron
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