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Subject: Re: ixgbe(4) spin lock held too long
From: Sean Bruno <sbruno@ignoranthack.me>
Reply-To: sbruno@freebsd.org
To: Eric van Gyzen <eric@vangyzen.net>
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References: <1410203348.1343.1.camel@bruno> <1410203965.1343.3.camel@bruno>
 <540E04AA.80806@vangyzen.net>
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Date: Mon, 08 Sep 2014 13:27:59 -0700
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On Mon, 2014-09-08 at 15:34 -0400, Eric van Gyzen wrote:
> >> Unread portion of the kernel message buffer:
> >> spin lock 0xffffffff812a0400 (callout) held by 0xfffff800151fe000
> (tid
> >> 100003) too long
> 
> TID 100003 is usually a kernel idle thread, which would seem to
> indicate
> a dangling lock.  Can you enable WITNESS (without WITNESS_SKIPSPIN) on
> this box? 

Will do.  I'll report back when we get a crash with WITNESS

sean