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Date: Thu, 09 Sep 2010 12:27:19 +0200 From: Tejun Heo <tj@...nel.org> To: Ilpo Järvinen <ilpo.jarvinen@...sinki.fi> CC: Lennart Schulte <lennart.schulte@...s.rwth-aachen.de>, Eric Dumazet <eric.dumazet@...il.com>, "David S. Miller" <davem@...emloft.net>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "Fehrmann, Henning" <henning.fehrmann@....mpg.de>, Carsten Aulbert <carsten.aulbert@....mpg.de> Subject: Re: oops in tcp_xmit_retransmit_queue() w/ v2.6.32.15 Hello, On 09/08/2010 12:34 PM, Ilpo Järvinen wrote: >> Unfortunately, we haven't been able to reproduce the problem anymore. > > With my debug patch or not at all? With the ugly merged patch I posted previously in this thread which contained debug messages if any of the worked around condition triggers. >> It could be (but not likely given that none of the debugging messages >> is triggering) that I was mistaken and the previously posted fixed the >> issue. The network used by the cluster went through some changes at >> the time and there have been issues with packet losses. Given that >> the problem needs packet losses to trigger, it's likely that packet >> loss pattern here changed such that the patterns of packet losses >> which trigger the problem aren't happening anymore. (Carsten, >> Henning, please feel free to fill in if I'm missing something). > > That might well be true, however, you're already a second guy who > cannot reproduce it with the debug patch so I would not rule out other > possibilities unless you've tried without debug patch too since the > changes? Unfortunately, I can't really tell one way or the other at this point. Carsten will be back in a few days. I'll ask him for more details. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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