On Wed, Jan 06, 2010 at 11:25:14AM +0000, Mark Cave-Ayland wrote: > Avi Kivity wrote: > >>> I think I'm experiencing a regression with the new qemu-kvm-0.12.1.2 >>> release compared to qemu-kvm-0.12.1.1 with a WinXP guest on Linux. >>> >>> I can boot my WinXP guest without a problem under qemu-kvm-0.12.1.1, >>> however under qemu-kvm-0.12.1.2 a couple of seconds after reaching >>> the login screen, the WinXP guest goes BSOD with the following error: >>> DRIVER_UNLOADED_WITHOUT_CANCELING_PENDING_OPERATIONS. >>> >>> I've confirmed by switching between the two installations several >>> times that the error consistently occurs with qemu-kvm-0.12.1.2 but >>> not qemu-kvm-0.12.1.1. Is this a known issue? This is on an x86_64 >>> Debian Lenny host with a 2.6.32.2 kernel on Intel. >> >> It's not a known issue. What's your command line? What's your host >> cpu type? > > Hi Avi, > > Good news - I downloaded the userspace git repository and managed to > identify the offending commit between 0.12.1.1 and 0.12.1.2 using git > bisect: > > > 4dad7ff32aa6dcf18cef0c606d8fb43ff0b939a1 is first bad commit > commit 4dad7ff32aa6dcf18cef0c606d8fb43ff0b939a1 > Author: Avi Kivity <avi@xxxxxxxxxx> > Date: Mon Dec 28 10:48:00 2009 +0200 > > Reinstate cpuid vendor override when kvm is enabled > > Due to upstream qemu changes we no longer expose the host cpu vendor id > to the guest. This leads to failures when the syscall/sysenter > instructions > are used in compatibility mode. > > Change the default to override when kvm is enabled. > > Signed-off-by: Avi Kivity <avi@xxxxxxxxxx> > Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx> > > > HTH, > > Mark. Mark, Thanks for tracking it down. Is there any difference with "-cpu host" option? -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
