Re: [Qemu-devel] Page protection and i386 cmpxchg8b

[Pierre d'Herbemont]

On 27 févr. 07, at 08:22, Ilya Shar wrote:

> Please see the diff file attached.

I meant send a diff to the qemu-devel in a new mail with [Patch] in  
the subject so that it can be committed :-)

However, at second thought, I think that it might need some re-work,  
see [1], and the arguments might need to be byte-swapped.

> Any suggestions how to fix this?

As I said before, I think that the problem appears because:

> > qemu signal handlers might be overridden by some mach calls, that  
> > could explain the problem you are encountering. We need to work on  
> > this.

That's really not easy to fix, in two words. [1] I think it should  
consist in writing a custom implementation of semaphore_signal_trap,  
semaphore_signal_thread_trap, semaphore_wait_signal_trap, etc. that  
hook into signal.c. Tell me if you want more info on this.

Pierre.