linux-kernel - Re: [PATCH] slub: Fix the lockless code on 32-bit platforms with no 64-bit cmpxchg

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Message-ID: <20110504163046.GA31689@elte.hu>
Date:	Wed, 4 May 2011 18:30:46 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Tejun Heo <tj@...nel.org>, Pekka Enberg <penberg@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jens Axboe <axboe@...nel.dk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	werner <w.landgraf@...ru>, "H. Peter Anvin" <hpa@...or.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Christoph Lameter <cl@...ux.com>
Subject: Re: [PATCH] slub: Fix the lockless code on 32-bit platforms with no
 64-bit cmpxchg


* Ingo Molnar <mingo@...e.hu> wrote:

> * Ingo Molnar <mingo@...e.hu> wrote:
> 
> > 
> > * Thomas Gleixner <tglx@...utronix.de> wrote:
> > 
> > > Patch below. Ingo, can you test that please ?
> > 
> > Sure - test underway.
> 
> Ok, the patch below is looking really good - the test would have crashed on the 
> bad kernel. I think we can consider the regression fixed:
> 
>   Acked-and-tested-by: Ingo Molnar <mingo@...e.hu>
> 
> I'll keep it running some more to make really sure it's fixed, plus it would 
> be nice if Walter tested your fix as well.

Stopped the test after 2 hours uptime - i think we can consider the crash 
fixed.

Thanks,

	Ingo
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