linux-kernel - Re: 2.6.19 file content corruption on ext3

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Message-Id: <1167336633.20929.31.camel@laptopd505.fenrus.org>
Date:	Thu, 28 Dec 2006 21:10:33 +0100
From:	Arjan van de Ven <arjan@...radead.org>
To:	Dave Jones <davej@...hat.com>
Cc:	Linus Torvalds <torvalds@...l.org>,
	Petri Kaukasoina <kaukasoina610meov7e@....fi>,
	Marc Haber <mh+linux-kernel@...schlus.de>,
	Andrew Morton <akpm@...l.org>,
	Nick Piggin <nickpiggin@...oo.com.au>, andrei.popa@...eo.ro,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Hugh Dickins <hugh@...itas.com>,
	Florian Weimer <fw@...eb.enyo.de>,
	Martin Michlmayr <tbm@...ius.com>
Subject: Re: 2.6.19 file content corruption on ext3

On Thu, 2006-12-28 at 14:39 -0500, Dave Jones wrote:
> On Thu, Dec 28, 2006 at 11:21:21AM -0800, Linus Torvalds wrote:
>  > 
>  > 
>  > On Thu, 28 Dec 2006, Petri Kaukasoina wrote:
>  > > > me up), and that seems to show the corruption going way way back (ie going 
>  > > > back to Linux-2.6.5 at least, according to one tester).
>  > > 
>  > > That was a Fedora kernel. Has anyone seen the corruption in vanilla 2.6.18
>  > > (or older)?
>  > 
>  > Well, that was a really _old_ fedora kernel. I guarantee you it didn't 
>  > have the page throttling patches in it, those were written this summer. So 
>  > it would either have to be Fedora carrying around another patch that just 
>  > happens to result in the same corruption for _years_, or it's the same 
>  > bug.
> 
> The only notable VM patch in Fedora kernels of that vintage that I recall
> was Ingo's 4g/4g thing.

which does tlb flushes *all the time* so that even rules out (well
almost) a stale tlb somewhere...


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