Looks like you got a block of zeros from disk when it should have been a
block bitmap, or your filesystem is otherwise corrupted. You need to do
a full fsck on this filesystem.
As for cause, I have no idea. IDE DMA, IDE cables, memory, kernel bug...
Cheers, Andreas
-- Andreas Dilger http://www-mddsp.enel.ucalgary.ca/People/adilger/ http://sourceforge.net/projects/ext2resize/- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/