Re: [Qemu-devel] [PATCH uq/master 0/3] Fix MSI injection at load time

[Jan Kiszka]

On 2012-10-30 17:47, Paolo Bonzini wrote:
> Il 30/10/2012 13:16, Paolo Bonzini ha scritto:
>> A simplified reproducer (that doesn't hang Linux,
>> but shows the message) is to start the VM without a backend for the
>> virtserialport, and to resume it with a backend, for example
>>
>> $ qemu-system-x86_64 -device virtio-serial-pci -device virtserialport 
>> test.img --enable-kvm -m 512
>> $ qemu-system-x86_64 -device virtio-serial-pci -chardev stdio,id=vs0 -device 
>> virtserialport,chardev=vs0 test.img --enable-kvm -m 512 -incoming 'exec:cat 
>> foo.ckp'
> 
> Jan, Amit,
> 
> the same bug is also happening without MSI.  The reproducer is the same
> as above, but with pci=nomsi for Linux guests.  After migration, "cat
> /dev/vport0p1" will not block, and if you have a NIC on the same line as
> virtio-serial it will also not work.
> 
> Do any of you have some time to look at it?

Likely not the very next days. :-/

Jan

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