Date: Tue, 30 Sep 2003 23:19:34 -0400 From: "Michael W. Oliver" <michael@gargantuan.com> To: Robert Watson <robert@fledge.watson.org> Cc: freebsd-stable@freebsd.org Subject: Re: panics on 24 hour boundaries Message-ID: <200309302319.40059.michael@gargantuan.com> In-Reply-To: <Pine.NEB.3.96L.1030930223013.10236B-100000@fledge.watson.org> References: <Pine.NEB.3.96L.1030930223013.10236B-100000@fledge.watson.org>
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--Boundary-02=_Mfke/AKl2YS8nXl Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Description: signed data Content-Disposition: inline +--- On Tuesday, September 30, 2003 22:35 --- | Robert Watson proclaimed: | | Initial reactions: panics on 24 hour boundaries are, in my experience, | often associated with the daily event. Once a day, the daily scripts run | find several times on your file systems, causing every file and directory | to be inspected for changes in setuid scripts, etc. This can trigger | certain classes of race conditions and resource limits that you might | otherwise not hit in normal operation -- and conviently, they run 24 | hours apart :-). To try and confirm this suspicion, it would be | interesting to know what time of day exactly the panics take place, and | whether you can reproduce the panic by manually running the daily or | security script. All of the panics happened in the evening hours, between 1800 and 2200 EDT.= =20 I am also able to successfully run the daily periodic scripts at any time=20 of the day without issue. | Also, out of curiosity: since you're experiencing crashes, I assume fsck | has run on all your file systems. If not, you might want to boot to | single user and run fsck on each file system manually to make sure | there's no on-disk corruption of UFS meta-data. Yep, fsck has been run after each hostile reboot, and I did a full fsck fro= m=20 single user mode before installing the world on the evening of 2003-09-28. As of this writing, the server has been up for 1 day, 2:22. Should another= =20 panic occur, I will perform a trace as before and post it out to stable@. Thanks for your reply Robert, I do appreciate it. =2D-=20 Mike perl -e 'print unpack("u","88V]N=3D&%C=3D\"!I;F9O(&EN(&AE861E<G,*");' --Boundary-02=_Mfke/AKl2YS8nXl Content-Type: application/pgp-signature Content-Description: signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (FreeBSD) iD8DBQA/ekfLsWv7q8X6o8kRAlWvAJ4iwjdtPTvWydTsRvzPuOUQDyFO0ACgx9Pw KV1BfvuYXuJFO9shCwxsKtU= =dFcB -----END PGP SIGNATURE----- --Boundary-02=_Mfke/AKl2YS8nXl--
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