Re: xl create/save throwing errors

[Petr Beneš <w1benny@xxxxxxxxx>]

On Wed, Feb 26, 2025 at 1:50 AM Marek Marczykowski-Górecki
<marmarek@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> This is domain crash.
> Anything interesting on the console log of that domain (if it has some
> debug logs there...), or maybe in xl dmesg?
>
> --
> Best Regards,
> Marek Marczykowski-Górecki
> Invisible Things Lab

I figured. The domain simply crashes (bugchecks) and frustratingly,
the generated MEMORY.DMP is corrupted.

xl dmesg shows:

(XEN) d157: VIRIDIAN GUEST_OS_ID: vendor: 0x1 os: 0x4 major: 0xa
minor: 0 sp: 0 build: 0x271b
(XEN) d157: VIRIDIAN HYPERCALL: enabled: 1 pfn: 0x20e
(XEN) d157v0: VIRIDIAN VP_ASSIST: pfn: 0xc
(XEN) d157: VIRIDIAN HVCALL_NOTIFY_LONG_SPIN_WAIT
(XEN) d157: VIRIDIAN MSR_TIME_REF_COUNT: accessed
(XEN) d157v1: VIRIDIAN VP_ASSIST: pfn: 0x3ffff
(XEN) d157v2: VIRIDIAN VP_ASSIST: pfn: 0x3fffe
(XEN) d157v3: VIRIDIAN VP_ASSIST: pfn: 0x3fffd
(XEN) arch/x86/hvm/irq.c:368: Dom157 PCI link 0 changed 5 -> 0
(XEN) arch/x86/hvm/irq.c:368: Dom157 PCI link 1 changed 10 -> 0
(XEN) arch/x86/hvm/irq.c:368: Dom157 PCI link 2 changed 11 -> 0
(XEN) arch/x86/hvm/irq.c:368: Dom157 PCI link 3 changed 5 -> 0
(XEN) arch/x86/hvm/vmx/vmx.c:3413:d157v0 RDMSR 0x0000019a unimplemented
(XEN) arch/x86/hvm/vmx/vmx.c:3413:d157v0 RDMSR 0x0000019b unimplemented
(XEN) arch/x86/hvm/vmx/vmx.c:3413:d157v2 RDMSR 0x0000019a unimplemented
(XEN) arch/x86/hvm/vmx/vmx.c:3413:d157v2 RDMSR 0x0000019b unimplemented
(XEN) d157v3 VIRIDIAN GUEST_CRASH: 0xa 0xffffffffffffffff 0xe 0
0xfffff80648bbd2b3

So... it just confirms the bugcheck.

P.