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Re: [qemu-s390x] qemu crashes with vnc and multiple outputs + console re
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From: |
Christian Borntraeger |
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Subject: |
Re: [qemu-s390x] qemu crashes with vnc and multiple outputs + console redirection |
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Date: |
Thu, 8 Mar 2018 16:37:45 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 |
On 03/08/2018 04:26 PM, Gerd Hoffmann wrote:
> Hi,
>
>> I am playing with the virtio-gpu support on s390 and for that I also wanted
>> to multiplex
>> the existing consoles.
>> So I basically used the max_outputs=2 of virtio gpu to be able
>> to switch with ctrl+alt+1 and 3 between the virtio gpu and the sclplm
>> console.
>
> Why max_outputs=2? Do you want two fbdev devices?
I had the situation that the vc device does not appear via vnc
(only the virtio-gpu was then available). But I can no longer reproduce. So
with max_outputs=1 this now works as well. No idea what was wrong. And here
I can no longer see the crash.
>
>> -chardev pty,id=charconsole0 -device
>> sclpconsole,chardev=charconsole0,id=console0
>> -chardev vc,id=charconsole1 -device
>> sclplmconsole,chardev=charconsole1,id=console1
>> -device virtio-keyboard-ccw,id=input0,devno=fe.0.0001
>> -vnc 0.0.0.0:0
>> -k en-us
>> -device virtio-gpu-ccw,id=video0,max_outputs=2,devno=fe.0.0008
>>
>>
>> This seems to work fine, vrtio-gpu is on 1 and sclplm is on 3. Problem is,
>> when I randomly do ctrl+alt+[^1..9] sooner or later qemu crashes with
>
> Any chance this is ctrl-alt-2 ?
yes.