From owner-freebsd-current@FreeBSD.ORG  Tue Aug 10 14:16:46 2004
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From: Simon Dick <simond@irrelevant.org>
To: Mike Bristow <mike@urgle.com>
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Date: Tue, 10 Aug 2004 15:14:46 +0100
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cc: freebsd-current@freebsd.org
cc: Robert Watson <rwatson@freebsd.org>
Subject: Re: panic: mutex vr0 not owned at ...if_vr.c:571 when
	doing	ifconfig
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On Tue, 2004-08-10 at 14:03, Simon Dick wrote:
> On Tue, 2004-08-10 at 08:06, Mike Bristow wrote:
> > On Mon, Aug 09, 2004 at 06:41:43PM -0400, Robert Watson wrote:
> > > Hmm.  I actually committed a slightly different patch as if_vr.c:1.93 to
> > > acquire the lock around vr_setcfg() in vr_miibus_statchg().  Could you
> > > check that that also solves the problem?
> > 
> > When I tried that, it booted but paniced as soon as I ran 'ifconfig
> > vr0 media blah':
> > 
> > 
> > # ifconfig vr0 media 100baseTX
> > panic: _mtx_lock_sleep: recursed on non-recursive mutex vr0 @
> > +/usr/src/sys/pci/if_vr.c:506
> 
> Same here with 1.93 installed, currently backed out to 1.92 so I can use
> my network

Just tried the patch in PR 70189 and it works fine for me