UBIFS Corrupt during power failure

Artem Bityutskiy dedekind at infradead.org
Thu Mar 26 02:59:30 EDT 2009

On Tue, 2009-03-24 at 11:04 -0600, Eric Holmberg wrote:
> > Also, could you tell us what MTD drivers you are using?
> I'm using the physmap CFI flash driver for a CFI-compliant S29GL256P90F
> 256Mbit NOR flash chip.  Is that what you're asking for?
> I'll keep working on a better way to reproduce the problem.  Let me know
> if I need to add some printk statements somewhere and/or enable UBI or
> MTD debugging.

Any news? I am afraid your problem will be that UBIFS floods to much.
In that case try to enable debugging in the config, but do not enable
any debugging messages. Even with this UBIFS should give useful dumps
when this error happens:


And BTW, we did not test UBIFS well enough on NOR, and never tested
unclean reboots on NOR, but tested them _a lot_ on NAND. So there
may be some problems, but hopefully we can fix them.

Best regards,
Artem Bityutskiy (Битюцкий Артём)

More information about the linux-mtd mailing list