Hi, I got an assertion failure in fs/jbd/transaction.c. After a reboot, fsck found some errors on a ext3 fs (LVM2 over RAID1 if it matters), a block was shared between multiple files. I'm running a 2.6.8.1 kernel with supermount-ng patch. My proc was a bit overclocked so it could be a hardware problem, but I don't think so because I didn't notice other problems. Can I do anything to help ?