Date: Fri, 7 Jan 2011 10:41:04 -0600 From: Brandon Gooch <jamesbrandongooch@gmail.com> To: Pawel Tyll <ptyll@nitronet.pl> Cc: freebsd-net@freebsd.org, Jack Vogel <jfvogel@gmail.com>, freebsd-ipfw@freebsd.org Subject: Re: [Panic] Dummynet/IPFW related recurring crash. Message-ID: <AANLkTikZAHNRu_3=i5_0FTNOMua8Kr2bW7H%2BRJZ4c=PW@mail.gmail.com> In-Reply-To: <57312439.20110107171430@nitronet.pl> References: <201953550.20110106221821@nitronet.pl> <AANLkTikozeXLQtePk1niH-N58n9f6xAVGVBTmLPux2e-@mail.gmail.com> <57312439.20110107171430@nitronet.pl>
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On Fri, Jan 7, 2011 at 10:14 AM, Pawel Tyll <ptyll@nitronet.pl> wrote: > One more question tough, > > I have 4 identical machines, also with em-driven NICs - yet this is > the only one that dies like this. OTOH Other machines don't do traffic > shaping and do not use ipfw that extensively. Does this match your > theory? It's likely that the mbuf handling problem (in em_refresh_mbufs()) is triggered by the processing you're doing with ipfw (or elsewhere for that matter), so, yes, I think it's a bug fixed in the revision discussed. When you update and test, please let us know. Also, don't forget to submit a follow-up to your PR. Thanks! -Brandon
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