Date: Wed, 28 Sep 2005 11:13:20 -0400 From: Kris Kennaway <kris@obsecurity.org> To: SUZUKI Shinsuke <suz@kame.net> Cc: net@FreeBSD.org, kris@obsecurity.org Subject: Re: ipv6 panic in 6.0 ([kris@FreeBSD.org: kern/85780: 'panic: bogus refcnt 0' in routing/ipv6]) Message-ID: <20050928151319.GA27347@xor.obsecurity.org> In-Reply-To: <x7psqtzyad.wl%suz@alaxala.net> References: <20050927222634.GA46375@xor.obsecurity.org> <x7psqtzyad.wl%suz@alaxala.net>
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[-- Attachment #1 --] On Wed, Sep 28, 2005 at 12:06:18PM +0900, SUZUKI Shinsuke wrote: > Hello kris, > > >>>>> On Tue, 27 Sep 2005 18:26:34 -0400 > >>>>> kris@obsecurity.org(Kris Kennaway) said: > > > Can someone please look into this ipv6 panic? It is now my #1 panic > > on 6.0 (every few days, and I hardly make any use of ipv6 except for > > light nfs and tcp traffic), so it would be good to get it fixed before > > the release. > > Let me confirm one thing. > Did you also see a message "panic: bogus refcnt 0", in your panic? Yes, that's the panic string. > As far as I investigated, only IF_CLONE_REMREF_LOCKED() can display > this message. But it's called only in > if_clone_create/detach/destory(), and none of them seems to be called > according to the description in the PR. (rtexpunge() in route.c also > has this message, but it is commented out by "if 0", so it is not the > cause of this message) I have a number of (sparc64) cores for this panic if you'd like to see them. Kris [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDOrMPWry0BWjoQKURAi56AKDxgstbaXAPZ08l+1zihv1k73QjdQCeO2tk 6wPd/vC6wPc0N4Ne5/eJOiY= =MJa0 -----END PGP SIGNATURE-----
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