From owner-freebsd-current  Thu Sep 20 10:41:12 2001
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Date: Thu, 20 Sep 2001 19:40:52 +0200
From: Wilko Bulte <wkb@freebie.xs4all.nl>
To: John Baldwin <jhb@FreeBSD.ORG>
Cc: current@FreeBSD.ORG,
	Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
Subject: Re: Seen this lock order reversal?
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References: <20010919202447.B1763@freebie.xs4all.nl> <XFMail.010919133228.jhb@FreeBSD.org>
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On Wed, Sep 19, 2001 at 01:32:28PM -0700, John Baldwin wrote:
> 
> On 19-Sep-01 Wilko Bulte wrote:
> > On Tue, Sep 18, 2001 at 03:01:25PM -0700, John Baldwin wrote:

...

> >> p_flag to p_sflag which changed its locking semantics.)
> > 
> > Another one, on a -current from yesterday, on -alpha:
> > 
> > lock order reversal
> >  1st 0xfffffc00007fcef0 clk @ ../../../alpha/alpha/clock.c:702
> >  2nd 0xfffffc00007f65d8 callout @ ../../../kern/kern_timeout.c:225
> > ds10#
> 
> Hmm, ok, that one is new and is a problem.  Can you turn on WITNESS_DDB (it's
> available as the debug.witness_ddb sysctl and loader variableas well) and then
> get me a traceback in ddb?

I built a GENERIC with WITNESS_DDB. Sofar (of course... :-/ ) no
reproduction of the problem. I'm running buildworlds, any other good
suggestions to help trigger it are welcome

W/

-- 
|   / o / /_  _   		email: 	wilko@FreeBSD.org
|/|/ / / /(  (_)  Bulte		Arnhem, The Netherlands	

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