RE: stuck iscsi/iser target with linux-4.15.0-rc1

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> 
> Hey Steve,
> 
> > Hey, while working on some changes in the cxgb4 qp_drain functionality, I
> > encountered this stall.  To reproduce it, I attach 2 ram disks via iser over
> > cxgb4 and run an fio test.  While the test is running, I tear down the target
> > stack with 'targetcli clearconfig true'
> >
> > While this could be something with my qp_drain logic, I don't see that in these
> > stuck threads.  Has anybody seen this?
> 
> Not for a while, can you turn the debug prints in
> target_wait_for_sess_cmds so we can understand which commands are
> hanging?

Here ya go:

[239800.115739] target_wait_for_sess_cmds: Waiting for se_cmd: ffff88034082c998 t_state: 6, fabric state: 12


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