linux-kernel - Re: 2.6.31.5 x86-64 KVM: 'emulation failed (pagetable) rip 7fb49335da7b 66 0f 7f 07'

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]

Message-ID: <4B14E8E9.8050305@redhat.com>
Date:	Tue, 01 Dec 2009 11:59:05 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Nix <nix@...eri.org.uk>
CC:	Alejandro Riveira Fernández <ariveira@...il.com>,
	kvm@...r.kernel.org,
	Linux-Kernel-Mailing-List <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.31.5 x86-64 KVM: 'emulation failed (pagetable) rip 7fb49335da7b
 66 0f 7f 07'

On 11/30/2009 11:40 PM, Nix wrote:
>
> So I started with -vga std. The emulation failed flood is unaffected
> (strangely it's not consistent: it happens about half the time). As soon
> as I issue a 'stop gdm', X exits and the emulation flood halts: but
> although there are other getties running I can't find a way to switch to
> them, as qemu has stolen Ctrl-Alt for its own purposes: so the system is
> pretty much useless (maybe I should get an sshd up and try to restart
> things from there). (I've never needed to do this before: either my
> qemus have been text mode all the time, or X with one console.)
>
> Surely switching VTs is possible: any clues?
>    

'sendkey alt-ctrl-f2' from the qemu monitor.

So it looks like it is X related, and we'll have no choice other than to 
emulate the instruction.  Annoying, since we don't emulate sse 
instructions yet.

-- 
error compiling committee.c: too many arguments to function

--
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/