linux-kernel - Re: [RFC/PATCH] SLQB: Mark the allocator as broken PowerPC and S390

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Message-ID: <20090917115252.GO18404@wotan.suse.de>
Date:	Thu, 17 Sep 2009 13:52:52 +0200
From:	Nick Piggin <npiggin@...e.de>
To:	Pekka Enberg <penberg@...helsinki.fi>
Cc:	Sachin Sant <sachinp@...ibm.com>, Mel Gorman <mel@....ul.ie>,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	cl@...ux-foundation.org, heiko.carstens@...ibm.com, mingo@...e.hu,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [RFC/PATCH] SLQB: Mark the allocator as broken PowerPC and S390

On Thu, Sep 17, 2009 at 02:43:38PM +0300, Pekka Enberg wrote:
> Hi Nick,
> 
> Mel Gorman wrote:
> >> >I have access to a ppc machine but not necessarily one with a memoryless
> >> >nodes
> >> >that can reproduce this problem.
> >> >
> >> >Assuming Sachin is the reporter and we are in the same company, maybe I
> >> >have access to the machine. Sachin, can you mail me privately what this
> >> >machine is called and lets see can I get some time on that machine? By
> >> >any chance, was this bisected or did it just show up when SLQB became
> >> >the default?
> 
> On Thu, Sep 17, 2009 at 04:53:41PM +0530, Sachin Sant wrote:
> >> Have sent you the access details for the machine. This bug showed
> >> up when SLQB was enabled as default in linux-next
> 
> On Thu, Sep 17, 2009 at 2:38 PM, Nick Piggin <npiggin@...e.de> wrote:
> > Maybe it will be better to hold off merging until this is
> > debugged then? If it is merged as a non-default option, then
> > I can't see it being a huge issue to merge it a bit after the
> > window? It doesn't touch anything else...
> 
> Me sending anything but bug fixes to Linus after the merge window is
> closed...? That's one scary thought!

Well, I don't know if it is much different than merging with known
bugs and expecting to resolve them. Maybe it circumvents the
_letter_ of the merge window law, but in spirit it is probably
nicer to merge after fixing the bug :)

But I'll let you decide how to proceed.
 
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