Date: Fri, 4 Apr 2003 10:27:34 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Nate Lawson <nate@root.org> Cc: current@freebsd.org Subject: Re: MPSAFE fxp m_pkthdr not valid Message-ID: <16013.42086.170914.788364@grasshopper.cs.duke.edu> In-Reply-To: <Pine.BSF.4.21.0304032356590.15815-100000@root.org> References: <Pine.BSF.4.21.0304032356590.15815-100000@root.org>
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Nate Lawson writes: > I have gotten fxp running with MPSAFE and did a large scp transfer. It > ran for a few minutes and then paniced. It was trap 12 (page fault) at > address 0x24. Here is where it crashed: > <..> > The deref of mb_head->m_pkthdr is invalid. Note that my fxp_intr function > acquires the fxp lock right away so this shouldn't be a race in fxp. Where else is the lock acquired? It would be easier to help if we could see a diff.. Drew
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