On 03/20/2015 02:38 AM, Waiman Long wrote:
On 03/19/2015 06:01 AM, Peter Zijlstra wrote:
[...]
You are probably right. The initial apply_paravirt() was done before the SMP boot. Subsequent ones were at kernel module load time. I put a counter in the __native_queue_spin_unlock() and it registered 26949 unlock calls in a 16-cpu guest before it got patched out.
because even printks take lock.. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
