Re: oops in tcp_xmit_retransmit_queue() w/ v2.6.32.15

[David Miller]

From: Tejun Heo <tj@xxxxxxxxxx>
Date: Thu, 08 Jul 2010 10:22:02 +0200

> We've been seeing oops in tcp_xmit_retransmit_queue() w/ 2.6.32.15.
 ...
> Does anything ring a bell?

A long time ago we had a packet scheduler bug that could corrupt
the TCP socket queues, but that was fixed in 2.6.27 so would
definitely be fixed in your kernel.

--------------------
commit 69747650c814a8a79fef412c7416adf823293a3e
Author: David S. Miller <davem@xxxxxxxxxxxxx>
Date:   Sun Aug 17 23:55:36 2008 -0700

    pkt_sched: Fix return value corruption in HTB and TBF.
    
    Based upon a bug report by Josip Rodin.
    
    Packet schedulers should only return NET_XMIT_DROP iff
    the packet really was dropped.  If the packet does reach
    the device after we return NET_XMIT_DROP then TCP can
    crash because it depends upon the enqueue path return
    values being accurate.
    
    Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
--------------------

Nothing else jumps to mind, sorry.
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