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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/