linux-kernel - Re: headsup: random memory corruption on 4.5-rc5

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Message-ID: <CA+55aFz4a0d6Aaj7uzRt74OkM-tj-Zbay37VT0gA9zGCRVSPzg@mail.gmail.com>
Date:	Fri, 4 Mar 2016 14:23:02 -0800
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Dave Airlie <airlied@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: headsup: random memory corruption on 4.5-rc5

On Fri, Mar 4, 2016 at 1:44 PM, Dave Airlie <airlied@...il.com> wrote:
>
> ------------[ cut here ]------------
> kernel BUG at mm/slub.c:3625!

Yeah, not a lot to go on. That case should probably use
VM_BUG_ON_PAGE() to five a little more information, but on the whole
it's does look like just major memory corruption.

The call trace doesn't really strike me as a likely source of the bug.

Enabling slub debugging does seem to be the best idea.

             Linus