[Spice-devel] qemu stuck (locking issue ?)

[Paolo Bonzini]

On 11/29/2010 01:32 PM, Hans de Goede wrote:
>> I didn't do any serious testing with the iothread enabled (yet). Last
>> time I tried enabling iothread caused problems even without spice so I
>> didn't bother. Was a few months ago though, so things can have changed
>> meanwhile ...
>
> Ok, I just enabled iothread to see if it made any difference with
> usb redirection which it does not. I'll disable it again.
>
> BTW, if it is best left disabled, why do the build instructions on
> the wiki suggest to enable it ? :
> http://spice-space.org/page/Building_Instructions

Presumably because QEMU-with-iothread is closer to how qemu-kvm 
operates; qemu-kvm always has the iothread enabled.  Also, QEMU would 
like to enable iothread always, but this is blocked on lack of Windows 
host support and subtle bugs like yours. :(

Paolo