On 11/09/2018 09:37, Pavel Dovgalyuk wrote:
>> From: Paolo Bonzini [mailto:pbonz...@redhat.com]
>> On 09/07/2018 13:24, Pavel Dovgalyuk wrote:
>>> static void qemu_tcg_rr_wait_io_event(CPUState *cpu)
>>> {
>>> while (all_cpu_threads_idle()) {
>>> stop_tcg_kick_timer();
>>> qemu_
> From: Paolo Bonzini [mailto:pbonz...@redhat.com]
> On 09/07/2018 13:24, Pavel Dovgalyuk wrote:
> > static void qemu_tcg_rr_wait_io_event(CPUState *cpu)
> > {
> > while (all_cpu_threads_idle()) {
> > stop_tcg_kick_timer();
> > qemu_cond_wait(cpu->halt_cond, &qemu_global_mutex);
On 09/07/2018 13:24, Pavel Dovgalyuk wrote:
> static void qemu_tcg_rr_wait_io_event(CPUState *cpu)
> {
> while (all_cpu_threads_idle()) {
> stop_tcg_kick_timer();
> qemu_cond_wait(cpu->halt_cond, &qemu_global_mutex);
> }
>
> start_tcg_kick_timer();
>
> qemu_wait_io
There are some situations when this patch still doesn't help.
I think this happens due to the race condition in qemu_tcg_rr_wait_io_event
static void qemu_tcg_rr_wait_io_event(CPUState *cpu)
{
while (all_cpu_threads_idle()) {
stop_tcg_kick_timer();
qemu_cond_wait(cpu->halt_cond
