linux-kernel - Re: [080/119] sched: Fix boot crash by zalloc()ing most of the cpu masks

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Date:	Tue, 8 Dec 2009 12:09:51 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Greg KH <gregkh@...e.de>
Cc:	linux-kernel@...r.kernel.org, stable@...nel.org,
	stable-review@...nel.org, torvalds@...ux-foundation.org,
	Ingo Molnar <mingo@...e.hu>, Anton Blanchard <anton@...ba.org>
Subject: Re: [080/119] sched: Fix boot crash by zalloc()ing most of the cpu masks

On Mon, 7 Dec 2009 10:30:56 am Greg KH wrote:
> 2.6.31-stable review patch.  If anyone has any objections, please let us know.
> 
> ------------------
> From: Rusty Russell <rusty@...tcorp.com.au>
> 
> commit 49557e620339cb134127b5bfbcfecc06b77d0232 upstream.
> 
> I got a boot crash when forcing cpumasks offstack on 32 bit,
> because find_new_ilb() returned 3 on my UP system (nohz.cpu_mask
> wasn't zeroed).

Please also include "bdddd2963c0264c56f18043f6fa829d3c1d3d1c0"
(sched: Fix isolcpus boot option) from Linus' tree which fixes
a regression this introduces.

Thanks,
Rusty.
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