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From: Thomas Graf <tgraf@suug.ch>
To: David Miller <davem@davemloft.net>
Cc: ilpo.jarvinen@helsinki.fi, akpm@linux-foundation.org,
	netdev@vger.kernel.org
Subject: Re: tcp crash in net-2.6 tree
Date: Sat, 31 Mar 2007 00:10:54 +0200	[thread overview]
Message-ID: <20070330221053.GR521@postel.suug.ch> (raw)
In-Reply-To: <20070330.144347.68157619.davem@davemloft.net>

* David Miller <davem@davemloft.net> 2007-03-30 14:43
> Let's not speculate, let's find out for sure if snd_una is
> surpassing high_seq while we're in this state.
> 
> Andrew please give this debugging patch a spin, and also what
> is your workload?  I'd like to play with it too.
> 
> I've tried to code this patch so that if the bug triggers your
> machine shouldn't crash and burn completely, just spit out the
> log message.

I'm running into the same bug as Andew, i was able to reproduce
using Dave's patch within minutes:

TCP BUG: high_seq==NULL [c3c9cc54] q[c3c94edc] t[c3c9cc54]

The after(snd_una, high_seq) check is not triggered.

  parent reply	other threads:[~2007-03-30 22:10 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-30  6:09 tcp crash in net-2.6 tree Andrew Morton
2007-03-30 14:33 ` Ilpo Järvinen
2007-03-30 16:18   ` Andrew Morton
2007-03-30 21:43   ` David Miller
2007-03-30 22:06     ` Andrew Morton
2007-03-30 22:12       ` David Miller
2007-03-30 22:10     ` Thomas Graf [this message]
2007-03-30 22:15       ` David Miller
2007-03-31 10:19         ` ijjarvin
2007-04-02  8:38           ` Ilpo Järvinen
2007-04-02  9:02             ` David Miller
2007-04-02 21:06               ` Thomas Graf

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