Re: [Xen-devel] HVM guests hanging in hpet_rtc_interrupt

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2013-02-04 at 15:27 +0000, Olaf Hering wrote:
> On Mon, Feb 04, Olaf Hering wrote:
> 
> > Now I'm going to boot into sles11 dom0 and see if the hpet1 messsages
> > are really gone.
> 
> With sles11 dom0+domU there are no more hpet1 messages when started from
> xend.
> 
> 
> With xl however I now get a hanging guest, which I did not see before this
> patch. But this happens only if it is booted with quiet, with 'debug
> ignore_loglevel' booting works fine.
> Also xl list shows the domain in paused state?!

[...]
>   [<ffffffff812a9543>] acpi_os_write_port+0xe  <--

I expect this will have trapped to qemu, which would explain why the
vcpu is paused, but not why qemu appears to not be responding. Maybe
something in the qemu logs will shed some light?

>   [<ffffffff812c31d3>] acpi_ex_system_io_space_handler+0x8f
>   [<0000000000000000>] irq_stack_union
>   [<0000000000000000>] irq_stack_union
>   [<0000000000000000>] irq_stack_union
>   [<ffffffff812babf1>] acpi_ev_address_space_dispatch+0x1d5
>   [<ffffffff812c3144>] acpi_ex_system_io_space_handler
[...]



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