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From: John Baldwin <jhb@FreeBSD.org>
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Date: Fri, 7 May 2004 14:10:25 -0400
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cc: Ian FREISLICH <if@hetzner.co.za>
Subject: Re: spin lock sleepq chain held by 0xc0fc3540 for > 5 seconds
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On Friday 07 May 2004 09:34 am, Ian FREISLICH wrote:
> Hi
>
> Had this twice on my dual PII server runnning current.  It was doing
> a make world -j8 both times.
>
> FreeBSD 5.2-CURRENT #4: Thu May  6 15:58:56 SAST 2004

:(  This is a known reversal that can cause deadlock (it did in this case).  
It is being worked on but completely fixing it is going to take some time.  
Just to verify, you had processes swapped to disk when this happened?

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org