Re: [delayed_fput] BUG: unable to handle kernel paging request at ffff8800122a0ad0

From: Fengguang Wu
Date: Wed Jul 30 2014 - 08:48:01 EST

On Wed, Jul 30, 2014 at 04:15:21AM -0700, Christoph Hellwig wrote:
> On Wed, Jul 30, 2014 at 11:55:41AM +0800, Fengguang Wu wrote:
> > Greetings,
> >
> > 0day kernel testing robot got the below dmesg and the first bad commit is
> How does this manage to trip over a 2 year old commit now?

The bug is first discovered in linux-next, then the older kernel
releases (v3.15, v3.14, ...) are tested step by step, until it's found
to be introduced between v3.5 and v3.6. Then bisect can be started:

git bisect start v3.6 v3.5 --

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