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** [tickets:#3169] mds: mds_tipc_fctrl_shutdown() stuck forever**

**Status:** assigned
**Milestone:** 5.20.05
**Created:** Fri Mar 20, 2020 04:24 AM UTC by Thuan Tran
**Last Updated:** Fri Mar 20, 2020 04:24 AM UTC
**Owner:** Thuan Tran


ckpttest 20 11 hang forever because mds_tipc_fctrl_shutdown() stuck forever.

Because it take lock then wait for thread process_all_events() to be canceled
but that thread also want acquire the lock then it is keep waiting for lock 
forever.

~~~
<143>1 2020-03-20T04:38:55.194744+01:00 PL-3 ckpttest 365 mds.log [meta 
sequenceId="3599"] thuantr: poll() ret = 1
<142>1 2020-03-20T04:38:55.194753+01:00 PL-3 ckpttest 365 mds.log [meta 
sequenceId="3600"] MDTM: Processing Timer mailbox events
<142>1 2020-03-20T04:38:55.194766+01:00 PL-3 ckpttest 365 mds.log [meta 
sequenceId="3601"] MDTM: DESTROY post to Mailbox Success
<143>1 2020-03-20T04:38:55.194834+01:00 PL-3 ckpttest 365 mds.log [meta 
sequenceId="3602"] MDS:LIB_DESTROY: Destroy ack from MDS thread in 70 s
<143>1 2020-03-20T04:38:55.194898+01:00 PL-3 ckpttest 365 mds.log [meta 
sequenceId="3603"] thuantr: mds_tipc_fctrl_shutdown() start
<143>1 2020-03-20T04:38:55.194903+01:00 PL-3 ckpttest 365 mds.log [meta 
sequenceId="3604"] thuantr: mds_tipc_fctrl_shutdown() ncs_task_release() start
~~~


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