From: Lennart Schulte <lennart.schulte@nets.rwth-aachen.de>
To: "Ilpo Järvinen" <ilpo.jarvinen@helsinki.fi>
Cc: Tejun Heo <tj@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
lkml <linux-kernel@vger.kernel.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"Fehrmann, Henning" <henning.fehrmann@aei.mpg.de>,
Carsten Aulbert <carsten.aulbert@aei.mpg.de>,
Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: oops in tcp_xmit_retransmit_queue() w/ v2.6.32.15
Date: Thu, 15 Jul 2010 13:58:34 +0200 [thread overview]
Message-ID: <4C3EF7EA.2040900@nets.rwth-aachen.de> (raw)
In-Reply-To: <alpine.DEB.2.00.1007111825510.15736@melkinpaasi.cs.helsinki.fi>
I'm testing new reordering algorithms in a virtual testbed, that is the
nodes are emulated with xen and all the network parameters can be tuned
with queues.
With one of the algorithms I also got tracebacks which include
tcp_xmit_retransmit_queue. It only happens with ACK loss. The kernel
version however is 2.6.31.
When I read this thread I tried the debug patch and got the following:
[ 2754.413150] NULL head, pkts 0
[ 2754.413156] Errors caught so far 1
Hope that is of any help.
next prev parent reply other threads:[~2010-07-15 11:58 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-08 8:22 oops in tcp_xmit_retransmit_queue() w/ v2.6.32.15 Tejun Heo
2010-07-11 2:36 ` David Miller
2010-07-11 16:09 ` Ilpo Järvinen
2010-07-11 17:06 ` Eric Dumazet
2010-07-11 17:46 ` Eric Dumazet
2010-07-11 18:29 ` Eric Dumazet
2010-07-11 19:22 ` Ilpo Järvinen
2010-07-11 19:25 ` Ilpo Järvinen
2010-07-11 19:44 ` Ilpo Järvinen
2010-07-15 11:58 ` Lennart Schulte [this message]
2010-07-15 12:05 ` Eric Dumazet
2010-07-15 12:55 ` Lennart Schulte
2010-07-16 12:02 ` Ilpo Järvinen
2010-07-16 12:25 ` Lennart Schulte
2010-07-16 13:19 ` Ilpo Järvinen
2010-07-19 8:06 ` Lennart Schulte
2010-07-19 11:16 ` [PATCHv2] tcp: fix crash in tcp_xmit_retransmit_queue Ilpo Järvinen
2010-07-19 14:09 ` Eric Dumazet
2010-07-19 17:25 ` Ilpo Järvinen
2010-07-19 17:39 ` Eric Dumazet
2010-07-19 19:55 ` David Miller
2010-07-20 8:33 ` Ilpo Järvinen
2010-07-19 14:57 ` oops in tcp_xmit_retransmit_queue() w/ v2.6.32.15 Tejun Heo
2010-07-20 8:41 ` Ilpo Järvinen
2010-09-08 9:32 ` Ilpo Järvinen
2010-09-08 10:25 ` Tejun Heo
2010-09-08 10:34 ` Ilpo Järvinen
2010-09-09 10:27 ` Tejun Heo
2010-09-09 10:45 ` Ilpo Järvinen
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