linux-kernel - Re: BUG: using smp_processor_id() during suspend with 2.6.25-rc8

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Message-ID: <20080411104015.GA30997@elte.hu>
Date:	Fri, 11 Apr 2008 12:40:15 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Zdenek Kabelac <zdenek.kabelac@...il.com>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: BUG: using smp_processor_id() during suspend with 2.6.25-rc8


* Jiri Kosina <jkosina@...e.cz> wrote:

> On Fri, 11 Apr 2008, Ingo Molnar wrote:
> 
> > > [ CCs added ]
> > thanks Jiri, i've applied both patches of yours. (let me know if there 
> > are any updated patches) do they solve the problem?
> 
> Hi Ingo,
> 
> thanks, but I don't think they are the proper fix anymore. We'd rather 
> figure out why interrupts were enabled in the first place while the 
> code was running.
> 
> Which is quite difficult, because Zdenek doesn't seem to be able to 
> reproduce it, so we even don't know whether it has been caused by KVM 
> or not.

if sticking a WARN_ON_ONCE(!irqs_disabled()) somewhere would help in 
making the breakage more visible i'd be glad to apply such a patch.

	Ingo
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