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Date:      Sun, 8 Mar 2009 11:24:55 +0000 (GMT)
From:      Robert Watson <rwatson@FreeBSD.org>
To:        Ruben van Staveren <ruben@verweg.com>
Cc:        freebsd-stable Stable <freebsd-stable@freebsd.org>
Subject:   Panics involving ppp following routing fixes
Message-ID:  <alpine.BSF.2.00.0903081123310.1340@fledge.watson.org>
In-Reply-To: <E0513803-2580-4187-8BB2-1C0EA449A4EA@verweg.com>
References:  <E1LcGMf-000Om9-Ey@dilbert.ticketswitch.com> <alpine.BSF.2.00.0902251051230.64866@fledge.watson.org> <alpine.BSF.2.00.0902251130240.64866@fledge.watson.org> <alpine.OSX.2.00.0902252027450.509@freemac.nat.fasttrackmonkey.com> <E0513803-2580-4187-8BB2-1C0EA449A4EA@verweg.com>

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On Sun, 8 Mar 2009, Ruben van Staveren wrote:

>>> Just a minor heads up: I've merged both Kip Macy's lock order fixes to the 
>>> kernel routing code, and the route locking and reference counting fixes 
>>> from kern/130652 to stable/7.  These fixes should correct a number of 
>>> reported network-related hangs.  We might want to release a subset of 
>>> these as an errata patch to 7.1 if they shake out well in 7-stable.
>
> Unfortunately these changes let my system panic during early boot, around 
> the time when ppp/routing is started. Backing out these changes prevents the 
> panic.
>
> I've filed this with some textdumps as: kern/132404: panic sleeping thread 
> after 25th Feb src/sys/net commits
>
> http://www.freebsd.org/cgi/query-pr.cgi?pr=132404

Hi Ruben--

I've had a number of similar reports, but this one contained enough 
information for me to (hopefully) track it down.  I've merged a fix from head 
as r189531 that corrects lock leak in error-handling in the routing socket 
code.  Could you let me know if that helps with the problem?

Robert N M Watson
Computer Laboratory
University of Cambridge



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