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Message-ID: <4827E930.3000008@krogh.cc> Date: Mon, 12 May 2008 08:52:32 +0200 From: Jesper Krogh <jesper@...gh.cc> To: David Miller <davem@...emloft.net> CC: yhlu.kernel@...il.com, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: NIU - Sun Neptune 10g - Transmit timed out reset (2.6.24) David Miller wrote: > From: Jesper Krogh <jesper@...gh.cc> > Date: Sat, 10 May 2008 13:01:08 +0200 > >> Any good suggestions about the "Transmit timed out" messages. It >> currently leads to a system that "doesnt die" but doesnt respond within >> 15 minutes of load of the network adapter. > > It's likely some bug in the driver that hangs the card for whatever > reason, which we'll need to work out. Ok. I have been testing a bit more. It generally works fine, It seems the "transmit timed out" thing was provoked by dd in the tests, because it was creating a lot of small requests. (default bs=512).(over NFS). When the blocksize went up, the problem dissapered. (and the numer of context-switches went down). When the blocksize went up, the performance likewise raised to 615MB/s. I haven't been able to get pass that number. This is where one of the cpu's are settling at 100% load. Jesper -- Jesper -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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