Re: [Qemu-devel] [PATCH] Fix semaphores fallback code

[Blue Swirl]

On Fri, Dec 28, 2012 at 6:00 AM, Brad Smith <address@hidden> wrote:
> As reported in bug 1087114 the semaphores fallback code is broken which
> results in QEMU crashing and making QEMU unusable.
>
> This patch is from Paolo.
>
> This needs to be back ported to the 1.3 stable tree as well.

Needs to be back ported to HEAD as well because of the reorganization,
or applied after Paolo's series.

>
> Signed-off-by: Paolo Bonzini <address@hidden>
> Signed-off-by: Brad Smith <address@hidden>
>
>
> diff --git a/util/qemu-thread-posix.c b/util/qemu-thread-posix.c
> index 7be292e..17f2d7c 100644
> --- a/util/qemu-thread-posix.c
> +++ b/util/qemu-thread-posix.c
> @@ -213,6 +213,7 @@ int qemu_sem_timedwait(QemuSemaphore *sem, int ms)
>      while (sem->count < 0) {
>          rc = pthread_cond_timedwait(&sem->cond, &sem->lock, &ts);
>          if (rc == ETIMEDOUT) {
> +            ++sem->count;
>              break;
>          }
>          if (rc != 0) {
>
> --
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