Re: [Qemu-devel] Multiple instances of Qemu on Windows multicore

[Paolo Bonzini]

On 11/03/2011 10:54 AM, Fabien Chouteau wrote:
> > > >>  The unchaining is neither signal-safe nor thread-safe...
> > >
> > >  Yeah, but there's nothing Windows-specific in that.
> That's very important, I don't see why it is different between Linux and
> Windows here.

Yep, perhaps for timers it was the case a while ago, but with 
iothread+dynticks it should not be a problem anymore.  For unchaining, 
Linux and Windows should have never been different.

> Also, why running all the threads on the same CPU would
> make the code thread-safe?

It would ensure that two mutators wouldn't run concurrently.  In some 
sense, signal-safe code could then be considered thread-safe too.

Paolo