On Mon, Feb 21, 2005 at 12:37:53PM +0100, Andreas Steinmetz <[EMAIL PROTECTED]> wrote: > >Anyway, what do you guys think could be the problem? Could it be that > >the LVM / Device Mapper snapshot feature is solely responsible for > >this corruption? (I'm sure there's a reason it's marked > >Experimental). > > I don't think so - I changed from reiserfs to ext3 without changing the > underlying dm/raid5 and this seems to work properly.
I use both reiserfs and ext3 on lvm/dm on raid. Both filesystems have issues when restoring from backup (i.e. very heavy write activity). I did report this to the linux kernel, and got as reply that there are indeed races *somewhere*, but as of yet there is no fix. The symptoms are _not_ I/O errors (but until I see logs I wouldn't believe you that there are real I/O errors), but usually too-high block numbers. A reboot fixes this for both ext3 and reiserfs (i.e. the error is gone). You might want to explore this problem and decide for yourself if it's caused by I/O errors (in which case you have a disk problem) or "just" filesystem corruption. -- The choice of a -----==- _GNU_ ----==-- _ generation Marc Lehmann ---==---(_)__ __ ____ __ [EMAIL PROTECTED] --==---/ / _ \/ // /\ \/ / http://schmorp.de/ -=====/_/_//_/\_,_/ /_/\_\ XX11-RIPE - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/