Cursor release failures

Cursor release failures

[Michael Ivanov]

Good morning,

Not sure whether the devel list is a correct place to ask such
questions - but didn't find more appropriate list, the other
one being only kvm-commits :-) I have a problem with releasing
the cursor with ctrl alt sequence. I.e. it does not release :-)
The actual behaviour depends on actual kvm version: in kvm-19
it might have been actually released, but the pointer remained
frozen even after I have killed qemu process from console
(I was able to switch to it using ctrl alt F1 sequence).
In latest version (kvm 22) the system froze very reliably - I
couldn't even switch the virtual console and had to reset the
box. Before I used ctrl alt sequence pointer worked in guest
system (windows 2000) normally.

My kernel is 2.6.21, for X server nvidia proprietory drivers are
used.

Best regards and thanks
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Re: Cursor release failures

[Avi Kivity]

Michael Ivanov wrote:
> Good morning,
>
> Not sure whether the devel list is a correct place to ask such
> questions - but didn't find more appropriate list, the other
> one being only kvm-commits :-) I have a problem with releasing
> the cursor with ctrl alt sequence. I.e. it does not release :-)
> The actual behaviour depends on actual kvm version: in kvm-19
> it might have been actually released, but the pointer remained
> frozen even after I have killed qemu process from console
> (I was able to switch to it using ctrl alt F1 sequence).
> In latest version (kvm 22) the system froze very reliably - I
> couldn't even switch the virtual console and had to reset the
> box. Before I used ctrl alt sequence pointer worked in guest
> system (windows 2000) normally.
>
> My kernel is 2.6.21, for X server nvidia proprietory drivers are
> used.
>
>   

What cpu are you using (cat /proc/cpuinfo on the host)?

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Re: Cursor release failures

[Michael Ivanov]

Avi Kivity пишет:

> What cpu are you using (cat /proc/cpuinfo on the host)?
>
Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz Avi Kivity пишет:

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Re: Cursor release failures

[Avi Kivity]

Michael Ivanov wrote:
> Avi Kivity пишет:
>
>   
>> What cpu are you using (cat /proc/cpuinfo on the host)?
>>
>>     
> Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz Avi Kivity пишет:
>
>   

Well, it's supposed to be fixed in kvm-22.  Are you 100% certain you 
don't have leftover modules somewhere?  Please load them with insmod 
instead of modprobe.

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Re: Cursor release failures

[Michael Ivanov]

Avi Kivity пишет:

> Well, it's supposed to be fixed in kvm-22.  Are you 100% certain you 
> don't have leftover modules somewhere?  Please load them with insmod 
> instead of modprobe.
I loaded modules using insmod directly from kvm-22/kernel and retested.
I was not exact in my initial mail, sorry: the pointer would not be
released on ctrl alt, but the whole system hanged when the guest system
terminated. My current results are as follows:

  * ctrl alt does NOT release the pointer
  * kill -TERM to qemu does NOT hang the system: the vm is terminated
    and the pointer IS released.
  * when the guest system tries to reboot, the host system hangs. I was
    not able to verify whether it was just frozen x windows or the
    whole system crashed.

Best regards
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Re: Cursor release failures

[Avi Kivity]

Michael Ivanov wrote:
> Avi Kivity пишет:
>
>   
>> Well, it's supposed to be fixed in kvm-22.  Are you 100% certain you 
>> don't have leftover modules somewhere?  Please load them with insmod 
>> instead of modprobe.
>>     
> I loaded modules using insmod directly from kvm-22/kernel and retested.
> I was not exact in my initial mail, sorry: the pointer would not be
> released on ctrl alt, but the whole system hanged when the guest system
> terminated. My current results are as follows:
>
>   * ctrl alt does NOT release the pointer
>   

This is strange.

>   * kill -TERM to qemu does NOT hang the system: the vm is terminated
>     and the pointer IS released.
>   

Okay.

>   * when the guest system tries to reboot, the host system hangs. I was
>     not able to verify whether it was just frozen x windows or the
>     whole system crashed.
>   

This is fixed in kvm-23.


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Re: Cursor release failures

[Michael Ivanov]

Avi Kivity пишет:

>>   * ctrl alt does NOT release the pointer
> 
> This is strange.
Just tested it again with kvm-24
The pointer is not released on ctrl del.
When the guest system reboots the system does not hang anymore though.

Is it possible to turn on some kind of trace/debug output to figure out the problem?

Best regards
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Re: Cursor release failures

[Avi Kivity]

Michael Ivanov wrote:
> Avi Kivity пишет:
>
>   
>>>   * ctrl alt does NOT release the pointer
>>>       
>> This is strange.
>>     
> Just tested it again with kvm-24
> The pointer is not released on ctrl del.
> When the guest system reboots the system does not hang anymore though.
>
> Is it possible to turn on some kind of trace/debug output to figure out the problem?
>
>   

Maybe this is a problem with the SDL version you are using.  What's your 
SDL version?  What distro?  Are you fully updated?


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