K 10
svn:author
V 5
trasz
K 8
svn:date
V 27
2018-03-15T17:36:13.702719Z
K 7
svn:log
V 687
Fix iSCSI target crash on session reinstation.

The crash scenario goes like this: there's a thread waiting on "reinstate";
because it doesn't update the timeout counter it gets terminated by the
callout; at this point the maintenance thread starts the termination routine.
The first thread finishes waiting, proceeds to icl_conn_handoff(), and drops
the refcount, which allows the maintenance thread to free its resources.  At
this point another thread receives a PDU.  Boom.

PR:		222898, 219866
Reported by:	Eugene M. Zheganin <emz at norma.perm.ru>
Tested by:	Eugene M. Zheganin <emz at norma.perm.ru>
Reviewed by:	mav@ (earlier version)
MFC after:	2 weeks
Sponsored by:	playkey.net

END