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Date: Tue, 10 Aug 2004 08:06:03 +0100
From: Mike Bristow <mike@urgle.com>
To: Robert Watson <rwatson@freebsd.org>
Message-ID: <20040810070603.GA27291@urgle.com>
References: <1092044482.20927.35.camel@singsing.eng.demon.net>
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cc: freebsd-current@freebsd.org
Subject: 
	Re: panic: mutex vr0 not owned at ...if_vr.c:571 when doing	ifconfig
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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
cpuid = 1
KDB: enter: panic
[thread 100089]
Stopped at      kdb_enter+0x30: leave
db> trace
kdb_enter(...
panic(...
_mtx_lock_sleep
_mtx_lock_flags
vr_miibus_statchg
miibus_statchg
mii_phy_update
amphy_service
mii_mediachg
vr_init_locked
vr_init
vr_ifmdia_upd
ifmedia_ioctl
vr_ioctl
ifhwioctl
ifioctl
syscall
Xint0x80_syscall

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