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

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Message-ID: <20080826212549.GE5300@tux1.brauer.lan>
Date:	Tue, 26 Aug 2008 23:25:50 +0200
From:	Gerhard Brauer <gerhard.brauer@....de>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	"Luiz Fernando N. Capitulino" <lcapitulino@...driva.com.br>,
	"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

On Tue, Aug 26, 2008 at 04:48:14PM -0400, Mathieu Desnoyers wrote:
> 
> OK, so we have a problem with interrupts coming while we are doing the
> alternatives patching.
> 
> First thing, I wonder if Virtualbox expects the OS to patch all its
> paravirt instructions in one go ?
> 
> Also, could you then try to :
> - to revert all those changes
> - Do this to text_poke_early and text_poke :
> 
> - put the sync_core() within the irq off critical section
> (test)

Could you please explain more what to change? I don't see where to put
sync_core(), i not found this section in both functions. (I'm not a developer)

> - add a wbinvd();  just after the sync_core() in both functions
> (test).

Also verbose please...

> Thanks,
> 
> Mathieu

Thank you
	Gerhard

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