linux-kernel - Re: [Bug] Reproducible data corruption on i5-3340M: Please revert 53a59fc67!

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Message-ID: <CA+55aFy2D2hTc_ina1DvungsCL4WU2OTM=bnVb8sDyDcGVCBEQ@mail.gmail.com>
Date:	Thu, 15 Aug 2013 05:02:31 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Ben Tebulin <tebulin@...glemail.com>
Cc:	Michal Hocko <mhocko@...e.cz>, Mel Gorman <mgorman@...e.de>,
	Johannes Weiner <hannes@...xchg.org>,
	Balbir Singh <bsingharora@...il.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	linux-mm <linux-mm@...ck.org>, Rik van Riel <riel@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [Bug] Reproducible data corruption on i5-3340M: Please revert 53a59fc67!

On Thu, Aug 15, 2013 at 2:25 AM, Ben Tebulin <tebulin@...glemail.com> wrote:
>
> I just cherry-picked e6c495a96ce0 into 3.9.11 and 3.7.10.
> Unfortunately this does _not resolve_ my issue (too good to be true) :-(

Ho humm. I've found at least one other bug, but that one only affects
hugepages. Do you perhaps have transparent hugepages enabled? But even
then it looks quite unlikely.

I'll think about this some more. I'm not happy with how that
particular whole TLB flushing hack was done, but I need to sleep on
this.

              Linus
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