Re: [RFC] Avoid PIT SMP lockups

From: Gerd Hoffmann
Date: Mon Oct 16 2006 - 12:09:00 EST


john stultz wrote:
> Hey Gerd,
> Looks like the smp replacements code in 2.6.18 is breaking with vmware.
> I'm guessing we're taking an interrupt while apply_replacements is
> running. Any ideas?

It's not the smp alternatives code, its the one for processor-specific
instructions. The eip offset for alternative_instructions() in the
trace suggests it is the first call to apply_replacements. The second
one is the one for the smp alternatives (which doesn't do anything btw
as we patch away the lock prefixes only).

cheers,

Gerd

--
Gerd Hoffmann <kraxel@xxxxxxx>
http://www.suse.de/~kraxel/julika-dora.jpeg
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