Date: Wed, 06 Mar 2002 16:47:59 -0700 From: "Jan L. Peterson" <jlp@softhome.net> To: Ian Dowse <iedowse@maths.tcd.ie> Cc: Matthew Dillon <dillon@apollo.backplane.com>, freebsd-stable@FreeBSD.ORG Subject: Re: crashes on 4.5-RELEASE Message-ID: <20020306234759.699F3422E2@mail.flipdog.com> In-Reply-To: Your message of "Wed, 06 Mar 2002 21:30:43 GMT." <200203062130.aa57106@salmon.maths.tcd.ie> References: <200203062130.aa57106@salmon.maths.tcd.ie>
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Ian> I actually doubt that this patch could help with the panics you were Ian> seeing. The only problem this is known to fix is one where you have an Ian> NFS filesystem mounted, and you load an IPFW rule that blocks outgoing Ian> NFS packets. Well, I was heavily hitting an nfs mounted filesystem, but don't have any IPFW rules so far as I know. Ian> is it possible that you might have been using some kernel module that Ian> didn't match the kernel So far as I know, the only kernel module I have loaded is the maestro3 driver: bash$ kldstat Id Refs Address Size Name 1 5 0xc0100000 2fca04 kernel 2 1 0xc03fd000 8864 snd_maestro3.ko 3 1 0xc0406000 152c4 snd_pcm.ko 4 1 0xc1745000 12000 fire_saver.ko 5 1 0xc1758000 14000 linux.ko Hmmm, I have fire_saver loaded, but it doesn't work because the laptop display doesn't do 320x200 video mode... I should turn that off. Ian> A useful experiment would be to turn off INVARIANTS, undo this patch, Ian> and check that the panics still occur. It's quite possible that there Ian> is a hard-to-find bug that INVARIANTS or the sosend patch somehow Ian> disguise, but it's worth ruling out simpler explanations first! I'll try this tomorrow when I have physical access to the machine again. Matt> I think there may still be a bug in xl0, probably something Matt> that goes wrong when xl0 is unable to allocate a new mbuf. Matt> This patch makes that far less likely to occur under certain Matt> circumstances. I think you're right, based on the PRs in the system associated to the xl driver... Is wpaul still actively maintaining this driver? I see PR http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/22494 from November 2000 (!), but no activity. -jan- -- Jan L. Peterson <jlp@softhome.net> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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