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Date:      Sat, 10 Apr 2010 01:07:36 +0200
From:      Jilles Tjoelker <jilles@stack.nl>
To:        Attilio Rao <attilio@freebsd.org>
Cc:        Ed Maste <emaste@sandvine.com>, freebsd-arch@freebsd.org
Subject:   Re: so_rcv_sx, deadlkres, SIGSTOP
Message-ID:  <20100409230736.GA7317@stack.nl>
In-Reply-To: <q2s3bbf2fe11004080257t8eeccb1dhdf90913dee28bc2f@mail.gmail.com>
References:  <20100404175140.GB40499@stack.nl> <q2s3bbf2fe11004080257t8eeccb1dhdf90913dee28bc2f@mail.gmail.com>

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On Thu, Apr 08, 2010 at 11:57:10AM +0200, Attilio Rao wrote:
> Jilles,
> may you please try this patch?:
> http://www.freebsd.org/~attilio/Sandvine/deadlkres/deadlkres-blessed.diff

> It does introduce a blessed list where the sx_lock can be whitelisted.
> It also fixes, for long sleeps, the wrap-up of ticks object.
> The obvious fallout is that deadlkres can't help much with deadlocks
> for whitelisted sxlock or lockmgr but that is a fair price I think.

This fixes the inappropriate deadlkres triggering for me.

-- 
Jilles Tjoelker



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