Date: Tue, 19 Feb 2008 14:00:56 +0000 From: "Bruce M. Simpson" <bms@FreeBSD.org> To: Rob Watt <rob@hudson-trading.com> Cc: freebsd-net@freebsd.org Subject: Re: panic in 6.3-RELEASE when multi-cast client exits Message-ID: <47BAE118.2040508@FreeBSD.org> In-Reply-To: <cf6c7840802181045k7ccad96m50c547aed687e14@mail.gmail.com> References: <cf6c7840802181045k7ccad96m50c547aed687e14@mail.gmail.com>
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Rob Watt wrote: > Hi. > > We recently upgraded some of our machines to 6.3-RELEASE and we have been > plagued by repeatable panics when our multi-cast client applications exit. > Our machines have Intel X5365 processors, LSI MegaSAS 1064R cards, and Intel > Pro 1000 MF nic cards (although we have seen this problem with the onboard > Intel copper nics as well). We have seen this panic with machines that have > Tyan boards as well as Super Micro. I have seen a few postings that seem to > refer to related panics, and bug > http://www.freebsd.org/cgi/query-pr.cgi?pr=116077 contains a patch that > seems like it should address the problem, but our patched system still > panics. I have attached the output from 3 of the dumps/backtraces. Dump #1 > is probably the most useful. I am happy to provide more info if necessary. > Some folk reported that they didn't see this problem occur with the code in 7.x, which jibes as I rewrote some of the logic in that branch. It's been nearly a year since I last had time to look at anything related to this. My understanding is that 7.0 is getting closer to release status so you may wish to try reproducing the problem there. The human resource situation hasn't changed much on my end, though I am getting closer to having time to finishing IGMPv3 (it's needed for other stuff in the future). I haven't been able to reproduce the bug in the PR, which makes suggesting other courses of action difficult. cheers BMS
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