linux-kernel - Re: [block IO crash] Re: 2.6.39-rc5-git2 boot crashs

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Message-ID: <20110504110650.GA6376@elte.hu>
Date:	Wed, 4 May 2011 13:06:50 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jens Axboe <axboe@...nel.dk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Pekka Enberg <penberg@...helsinki.fi>
Cc:	werner <w.landgraf@...ru>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [block IO crash] Re: 2.6.39-rc5-git2 boot crashs


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

> diff --git a/mm/slub.c b/mm/slub.c
> index 94d2a33..27bc3be 100644
> --- a/mm/slub.c
> +++ b/mm/slub.c
> @@ -30,6 +30,8 @@
>  
>  #include <trace/events/kmem.h>
>  
> +#undef CONFIG_CMPXCHG_LOCAL
> +
>  /*
>   * Lock order:
>   *   1. slab_lock(page)

This seems rock solid after half an hour of testing. I'll keep it running 
longer, i still have no good data for how frequently the crashes are occuring.

Thanks,

	Ingo
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