linux-kernel - Re: [PATCH -v2] rmap: make anon_vma_prepare link in all the anon

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Date:	Fri, 9 Apr 2010 11:21:11 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Minchan Kim <minchan.kim@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Nick Piggin <npiggin@...e.de>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	sgunderson@...foot.com, hannes@...xchg.org
Subject: Re: [PATCH -v2] rmap: make anon_vma_prepare link in all the
 anon_vmas of a mergeable VMA

From: Borislav Petkov <bp@...en8.de>
Date: Fri, Apr 09, 2010 at 03:30:12AM +0200

> > Maybe with all the patches flying around, you had a reject or something, 
> > and you lost that one anon_vma_prepare()?
> > 
> > Or maybe I screwed up somewhere and sent you the wrong patch. Here it is 
> > again, just in case.
> 
> Doesn't look like it - here's the diff between yours and what I have
> applied here (yep, only minor fuzz but no code differences) Also, I've
> added my version at the end:

So I went and reapplied the three patches (3rd is the object_err export
for SLUB debugging) on a new branch of today's git - same results, the
same processes crap up in the WARN(!vma->anon_vma) check so it should be
something else we're missing.

More code staring later...

-- 
Regards/Gruss,
Boris.
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