Last night I ran into a series of kernel panics that seemed to be related to heavy UFS traffic. I ran into two consecutive panics when trying to mount a UFS-formatted DVD-RAM as a regular user (though not when I mounted it as root). The system seemed to actually succeed in mounting the disk, as it was marked dirty after the ensuing panic. Upon rebooting after the second panic, I saw another two consecutive panics which happened whenever I tried to do something fairly disk-intensive (e.g. starting the X server + KDE) while the bgfsck was still running from the last panic. Ultimately I rebooted in single-user mode, ran fsck manually, and have experienced no further panics. I suspect these panics may be related to UFS deadlocks, as in all cases the application that was attempting disk access hung for several seconds before the panic, followed by a few seconds of total system hang, followed by the automatic reboot.
I'm running 6.1-PRELEASE/amd64 from 12 March on an Athlon 64 x2 (SMP) with SCHED_ULE+PREEMPTION--dangerous combination I know, but it's been rock solid for months until now. If anyone is interested, I'll try to reproduce this panic with a dump/backtrace. It may be one of the UFS deadlock issues that's already under investigation for 6.1-RELEASE. Thanks, Jason Harmening _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
