Date: Thu, 08 Sep 2011 18:19:48 +0100 From: Luke Marsden <luke-lists@hybrid-logic.co.uk> To: Martin Matuska <mm@FreeBSD.org> Cc: freebsd-fs@freebsd.org, tech@hybrid-logic.co.uk, Pawel Jakub Dawidek <pjd@FreeBSD.org> Subject: Re: ZFS hang in production on 8.2-RELEASE Message-ID: <1315502388.11352.15.camel@pow> In-Reply-To: <1314655349.7898.53.camel@pow> References: <1314646728.7898.44.camel@pow> <CAFqOu6gHvwxiOkFZ0Enh3VRHcs3aD=gH4u_6=XuhfYXg5NnkpQ@mail.gmail.com> <4E5BFC6F.5080507@FreeBSD.org> <1314655349.7898.53.camel@pow>
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On Mon, 2011-08-29 at 23:02 +0100, Luke Marsden wrote: > On Mon, 2011-08-29 at 22:54 +0200, Martin Matuska wrote: > > No, I think this is more likely fixed by pjd's bugfix in r224791 (MFC'ed > > to stable/8 as r225100). > > > > The corresponding patch is: > > http://people.freebsd.org/~pjd/patches/zfsdev_state_lock.patch > > > > Great, thanks! Will this patch apply to ZFS v15? We can't upgrade to > v28 yet. > We just got another hang in production, same procstat -kk on zfs umount -f as before: 52739 100186 zfs - mi_switch+0x176 sleepq_wait+0x42 _sleep+0x317 zfsvfs_teardown+0x269 zfs_umount+0x1c4 dounmount+0x32a unmount+0x38b syscallenter+0x1e5 syscall+0x4b Xfast_syscall+0xe2 Please advise whether the zfsdev_state_lock patch with apply to 8.2-RELEASE and whether it is wise to attempt to apply it? Thank you! -- Best Regards, Luke Marsden CTO, Hybrid Logic Ltd. Web: http://www.hybrid-cluster.com/ Hybrid Web Cluster - cloud web hosting Mobile: +447791750420 (UK) / +1-415-449-1165 (US)
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