Greetings, FreeBSD/amd64 6.1-STABLE (June 18, 18:44 US/Central), running on Intel EM64T Xeons. got a one-off bad pte panic, and when it tried to dump to a gmirror slice, it hung. Box had been rock stable. Had an issue with a neighbor (NFS server to this box) box yesterday, and had to force reboot it to get the NFS stuff back in sync, and all I thought(!) was ok. The out of the blue, while talking IMAP to this one, got the bad pte panic. when the box came back up, it had a massive amount of fsck to do, and then resync the mirror. While the mirror was re-syncing, there were times when I saw LOTS of processes blocked in ufs or getblk or related wait_chans. I'm not sure there is anything more I can provide (no serial console, and the box is in a colo cage 3.5 hours (by car) north of me. Just an FYI, and suggestions welcome. Thanks for listening to my rant. Larry Rosenman -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 512-248-2683 E-Mail: ler@lerctr.org US Mail: 430 Valona Loop, Round Rock, TX 78681-3893
On Wed, 2006-06-28 at 11:14 -0500, Larry Rosenman wrote:> Greetings, > FreeBSD/amd64 6.1-STABLE (June 18, 18:44 US/Central), running on Intel > EM64T Xeons. > > got a one-off bad pte panic, and when it tried to dump to a gmirror slice, > it hung. >[...]> > The out of the blue, while talking IMAP to this one, got the bad pte panic.I've seen this twice now on my only amd64 machine: http://docs.FreeBSD.org/cgi/mid.cgi?1148482556.35287.18.camel Memory testing has so far revealed no issues. Gavin
On Wed, 28 Jun 2006, Larry Rosenman wrote:> Greetings, > FreeBSD/amd64 6.1-STABLE (June 18, 18:44 US/Central), running on Intel > EM64T Xeons. > > got a one-off bad pte panic, and when it tried to dump to a gmirror slice, > it hung.I've seen this, too, on FreeBSD 6.1-PRERELEASE #6: Thu Feb 9 01:01:54 WST 2006 i386. It only appears to occur under load, so I suspect a hardware problem. I am taking this server offline in the next few weeks to try and track it down. Hope it doesn't happen again! David Adam zanchey@ucc.gu.uwa.edu.au