Fatal trap 12 page fault error on 8.0, 8.1, 8-STABLE 64bit from ZFS RAIDZ2 volume

[Bonnie Guerelli]

Hi all,

I posted quite a bit about the problems I've been having with a RAIDZ2 volume at http://forums.freebsd.org/showthread.php?p=105831 but am still nowhere towards getting this volume back online. It was created with 8.0 RELEASE 64bit and ZFS v13 on a QC6600 system with 8GB ram.

In a nutshell, when attempting to run import, export, mount, scrub, etc., I receive a 'Fatal trap 12: page fault while in kernel mode' error. This comes typically within a few seconds of issuing any of these commands,  but sometimes scrub has gone approx 6 hours, almost to completion. When running zdb, I've gotten 'Assertion failed' errors.

Any help would be much obliged,
Thanks,
-bg