linux-kernel - Re: 2.6.{26.2,27-rc} oops on virtualbox

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Message-ID: <20080826131354.356ae11d@doriath.conectiva>
Date:	Tue, 26 Aug 2008 13:13:54 -0300
From:	"Luiz Fernando N. Capitulino" <lcapitulino@...driva.com.br>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	Gerhard Brauer <gerhard.brauer@....de>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.{26.2,27-rc} oops on virtualbox

Em Tue, 26 Aug 2008 10:53:38 -0400
Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca> escreveu:

| Then, after having tested (2), try this on top of it :
| 
| In arch/x86/kernel/alternative.c, alternatives_smp_switch()
| 
| Add   unsigned long flags;
| Change 
| spin_lock -> spin_lock_irqsave(&smp_alt, flags);
| spin_unlock(&smp_alt); -> spin_unlock_irqrestore(&smp_alt, flags);

 Hmm, I can't find spin_lock functions in alternatives_smp_switch()
looks like the current implementation is now using mutexes.

 What tree are you referring to?

-- 
Luiz Fernando N. Capitulino
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