Date: Fri, 25 Oct 2013 07:07:39 GMT From: nikhil <nikhil.kathare@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/183293: Deadlock when modifying the zvol property of increasing the size. Message-ID: <201310250707.r9P77dbk043162@oldred.freebsd.org> Resent-Message-ID: <201310250710.r9P7A07C021979@freefall.freebsd.org>
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>Number: 183293 >Category: kern >Synopsis: Deadlock when modifying the zvol property of increasing the size. >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Oct 25 07:10:00 UTC 2013 >Closed-Date: >Last-Modified: >Originator: nikhil >Release: base/stable/9 >Organization: >Environment: But the current kernel and then installed >Description: zfs enters in deadlock situation when modifying the zvol property >How-To-Repeat: Just create the volume and then do some IO on the at volume through iscsi and then increase the size of volume, it will get deadlock. >Fix: Just remove the holding the lock, rrw_enter(&dp->dp_config_rwlock, RW_WRITER, FTAG); from function, spa_sync_upgrades in file spa.c This fix is already present in base/releng/9.0 >Release-Note: >Audit-Trail: >Unformatted:
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