Yang, Sheng wrote:
On Tuesday 15 July 2008 23:19:07 Dor Laor wrote:
Martin Michlmayr wrote:
I installed a Windows XP SP2 guest on a Debian x86_64 host The
installation itself went fine but kvm aborts when when XP starts
during "Windows XP Setup". XP mentions something with
intelppm.sys (see the attached screenshot) and kvm says:
kvm_run: Unknown error 524
kvm_run returned -524
It's a FlexPriority bug, while it should be solved, you can disable
it by using kvm-intel module parameter.
Dor, are you sure it's a FlexPriority bug?
Well, I'm not sure it's the FlexPriority's fault, it's just when it is
disabled it does not happen and I saw the apic
access. It can be miss emulation too.
It happened to me on ~ kvm-69
If you look at where is the complain, you would find there is a result
of emulate_instruction().
And you will find a clearly "emulation failed (mmio) rip 7cb3d000 ff
ff 8d 85" in the bug tracker Martin metioned above the "Fail to
handle apic access vmexit! Offset is 0xf0"(Spurious Interrupt Vector
Register).
I don't think "ff ff 8d 85" is a vaild opcode for that case.
Maybe it's a regression? The last report is long ago...
Hi Martin, can you show more dmesg here? And if it can be reproduce
stable?
Thanks.
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