Messages in this thread | | | Date | Tue, 26 Aug 2008 15:02:22 -0300 | From | "Luiz Fernando N. Capitulino" <> | Subject | Re: 2.6.{26.2,27-rc} oops on virtualbox |
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Em Tue, 26 Aug 2008 13:18:22 -0400 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> escreveu:
| * Luiz Fernando N. Capitulino (lcapitulino@mandriva.com.br) wrote: | > Em Tue, 26 Aug 2008 10:53:38 -0400 | > Mathieu Desnoyers <mathieu.desnoyers@polymtl.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. | > | | Sorry, I was looking directly at the commit which caused the problem. | Yes, these modif should go on top of the text_poke -> text_poke_early. | | So in current mainline, change, in alternatives_smp_switch() : | | mutex_lock(&smp_alt); | ... | | mutex_unlock(&smp_alt); | | to | | mutex_lock(&smp_alt); | local_irq_save(flags); | ... | | local_irq_restore(flags); | mutex_unlock(&smp_alt);
Did not help, same oops here.
-- Luiz Fernando N. Capitulino
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