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Date: Tue, 26 Jul 2005 15:17:12 +0200
From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
To: Craig Rodrigues <rodrigc@crodrigues.org>
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Cc: rwatson@freebsd.org, freebsd-current@freebsd.org,
	Harti Brandt <harti@freebsd.org>
Subject: Re: Panic in netnatm
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On Tue, Jul 26, 2005 at 08:42:22AM -0400, Craig Rodrigues wrote:
+> Hi,
+>=20
+> I did a cvsup, rebuilt everything ( buildworld, buildkernel, installkern=
el,
+> mergemaster -p, installworld) and now I get a panic very early when
+> my fatm card initializes:
+>=20
+> panic: mutex natm_mtx not owned at /usr/src/sys/netnatm/natm_pcb.c:110
+>=20
+> I have a dump file, but kgdb cannot read it:
+> kgdb: kvm_read: invalid address (0x4)
+>=20
+> I'll try to get a more useful trace tonight.

Trace will probably not be needed, as there are only two places where
npcb_add() is called.
It looks like NATM locking is missing in /sys/netinet/if_atm.c.

PS. CCing rwatson@, who did the work, AFAIR.

--=20
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd@FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!

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