[Qemu-devel] Re: [PATCH] vnc: threaded server depends on io-thread

[Corentin Chary]

>> The threaded VNC servers messed up with QEMU fd handlers without
>> any kind of locking, and that can cause some nasty race conditions.
>>
>> The IO-Thread provides appropriate locking primitives to avoid that.
>> This patch makes CONFIG_VNC_THREAD depends on CONFIG_IO_THREAD,
>> and add lock and unlock calls around the two faulty calls.
>
> qemu-kvm currently doesn't compile with --enable-io-thread. is there an easy 
> fix
> for this?

If IO Thread is not available, I'm afraid that --disable-vnc-thread is
the only fix.
Or, you can try to define some global mutex acting like iothread
locks, but that doesn't sounds like an easy fix.

-- 
Corentin Chary
http://xf.iksaif.net