Re: qemu-kvm-0.12.2 hangs when booting grub, when kvm is disabled

[Jan Kiszka <jan.kiszka@siemens.com>]

Gleb Natapov wrote:
> On Thu, Feb 18, 2010 at 12:32:39PM +0100, Jan Kiszka wrote:
>> Jacques Landru wrote:
>>> Hi,
>>>
>>> Same problem here
>>>
>>> qemu-kvm-0.12.x hangs if I have at the same time "-no-kvm" and 
>>> "file=essai-slitaz.raw,if=ide,index=0,boot=on" sometime with the
>>> message  below
>>>
>>> but
>>>
>>> qemu-kvm with "-no-kvm" and without "boot=on" option for the file 
>>> parameter, works
>>> qemu-kvm with "boot=on" option and kvm enable works. (kvm-kmod is 2.6.32.7)
>> I have to confirm this issue: Something badly crashes here as well,
>> either grub or the extboot ROM or Seabios.
>>
>> Does anyone has a good idea what makes the difference here, ie. where to
>> start debugging?
>>
> May be TCG interprets something incorrectly in extboot.bin. Sounds
> unlikely, but symptoms look like this is the case.

Yes, maybe. I'm currently building a debug version that has support for
TCG block tracing enabled. Should get us closer to the crash.

Jan

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