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Date: Mon, 03 Nov 2008 14:04:18 -0600
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: [Qemu-devel] Re: [5578] Increase default IO timeout from 10ms to 5s
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To: Jan Kiszka <jan.kiszka@web.de>
Cc: qemu-devel@nongnu.org

Jan Kiszka wrote:
> Anthony Liguori wrote:
>   
>> If anyone notices a slow down, I'd check this revision.  There may be
>> broken bits of code out there that depends on wake up rate.  I've done a
>> fair bit of testing and haven't found any but you never know.
>>     
>
> OK, here is one brokenness for you: Musicpal (qemu-arm-system) becomes
> unusable, sounds is stopping for seconds, even keyboard input is
> inpossible, including switching to the monitor console. What should I
> check for? Note that this board uses a ptimer to a PIT to the guest. May
> this make a difference here?
>   

Keyboard input should be governed by the VGA refresh timer which should 
be firing 30 times a second.

How do you have qemu configured?  Are you using SDL?  What sound driver 
are you using on the host?

Regards,

Anthony Liguori

> Jan
>
>