Re: [Qemu-devel] [PATCH 11/19] use a bottom half to run timers

[Paolo Bonzini]

On 01/04/2010 08:38 PM, Jamie Lokier wrote:
> In principle, if it does affect something, it seems likely there is
> already a buggy race condition.  After all, if the timer and bottom
> half could trigger at the same time, which is the condition where the
> order is significant, then in principle the timer could have triggered
> slightly later because it depends on the host alarm behaviour.

No, the problem is when the timer function is _itself_ scheduling a 
bottom half.  Before my patch there was a guarantee that the bh would 
run before TCG, now there is not.  It can be fixed easily though.

Paolo