Date: Wed, 17 Oct 2012 15:41:39 +0100 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Andriy Gapon" <avg@FreeBSD.org>, "Nikolay Denev" <ndenev@gmail.com> Cc: freebsd-fs@FreeBSD.org, dg17@penx.com, Dennis Glatting <dg@pki2.com> Subject: Re: I have a DDB session open to a crashed ZFS server Message-ID: <9826CE7F20544176825D7C71CD4A36B4@multiplay.co.uk> References: <1350317019.71982.50.camel@btw.pki2.com> <201210160844.41042.jhb@freebsd.org> <1350400597.72003.32.camel@btw.pki2.com> <201210161215.33369.jhb@freebsd.org> <507D8B69.3090903@FreeBSD.org> <alpine.BSF.2.00.1210161139060.22959@btw.pki2.com> <0B0CA833-79FA-4C8E-86AC-828E7947FF67@gmail.com> <507EC242.1070809@FreeBSD.org>
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----- Original Message -----
From: "Andriy Gapon" <avg@FreeBSD.org>
>> And there were no deadlocks since it's applied.
>> If you're hitting the same issue as I was, this should help.
>
> I am going to commit that change soon-ish, if nobody expressly objects to it.
>
> BTW, Nikolay, is your system (that used to deadlock) amd64?
> Could you please capture 'sysctl vm | fgrep kmem' output when it is under load?
We have a machine here which is locking up under high NFS / ZFS
load but unfortunately when it locks nothing is responsive.
I've patched out 8.3-RELEASE install with this and intend to give
it a test but as it only happens every week or so won't be able
to give you an answer for a few weeks I'm afraid.
Regards
Steve
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