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Subject: Re: 2.6.19 file content corruption on ext3
From: Arjan van de Ven <arjan@infradead.org>
To: Dave Jones <davej@redhat.com>
Cc: Linus Torvalds <torvalds@osdl.org>,
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Date: Thu, 28 Dec 2006 21:10:33 +0100
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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...