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Date:      Wed, 28 Mar 2007 10:47:19 +0200
From:      Andre Oppermann <andre@freebsd.org>
To:        Andrey Chernov <ache@freebsd.org>
Cc:        Garrett Cooper <youshi10@u.washington.edu>, freebsd-current@freebsd.org
Subject:   Re: Latest -current complete lockup (tcp changes?)
Message-ID:  <460A2B97.9040404@freebsd.org>
In-Reply-To: <20070328074611.GA19740@nagual.pp.ru>
References:  <200703251348.58972.nb_root@videotron.ca>	<20070325194946.GC79938@kobe.laptop>	<200703251620.20879.nb_root@videotron.ca>	<20070325202749.GA1503@kobe.laptop> <460705AE.5040107@freebsd.org>	<20070327045252.GA3256@nagual.pp.ru>	<46099675.3040609@u.washington.edu>	<20070327052810.GA772@nagual.pp.ru>	<20070327054501.GA1026@nagual.pp.ru> <46090BA6.5060206@freebsd.org> <20070328074611.GA19740@nagual.pp.ru>

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Andrey Chernov wrote:
> On Tue, Mar 27, 2007 at 02:18:46PM +0200, Andre Oppermann wrote:
> 
>>Could you revert sys/netinet/tcp_input.c back to rev. 1.327 while leaving
>>all others at HEAD and look if the bug can be reproduced?
> 
> 
> Yes! Reverting to 1.327 really helps, lockup is gone! Thanx!

You tried with a fully updated system before the backout as well?
There was a time window where TCP was indeed broken.  It panic'ed
though.

I'm looking at the tcp_input() split to find a case where it may
go wrong.

-- 
Andre



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