ubi deadlock on .36+

Artem Bityutskiy dedekind1 at gmail.com
Sun Nov 14 02:50:07 EST 2010

On Sat, 2010-11-13 at 16:23 +0200, Grazvydas Ignotas wrote:
> On Sat, Nov 13, 2010 at 3:15 PM, Artem Bityutskiy <dedekind1 at gmail.com> wrote:
> > While trying to figure out what is happening in your system, I realized
> > one possible scenario which may confuse UBI. I've added a patch below.
> > This probably won't fix your issue (but you could try), I need more time
> > to think about what was happening. But a log with all messages (not only
> > I/O) would help. Thanks.
> Well I think I already know what's wrong with my driver - it has
> subpage reads broken. So UBI tries to read a subpage, driver fails
> there, then it runs a torture test on full PEB that passes (because
> page reads work right), marks that PEB as good and retries the subpage
> read that fails again, and the story repeats. Does that sound like
> reasonable scenario, or do you still want more debugging logs?

Yaeah, obviously you have driver problems, I'm just interested to
improve UBI's resilience.
Best Regards,
Artem Bityutskiy (Битюцкий Артём)

More information about the linux-mtd mailing list