On Thu, Jul 26, 2012 at 9:25 AM, Shilimkar, Santosh <[email protected]> wrote: > On Wed, Jul 25, 2012 at 11:20 PM, Colin Cross <[email protected]> wrote: >> The cpu hotplug notifier gets called in both atomic and non-atomic >> contexts, it is not always safe to lock a mutex. Filter out all events >> except the six necessary ones, which are all sleepable, before taking >> the mutex. >> >> Signed-off-by: Colin Cross <[email protected]> >> --- > Agree. > Have you observed any lock-up ? > Colin explained me about cause of the issue in an off-list discussion. Thought of updating the thread in case some one wants to reproduce the issue. You get a warning during cpu hotplug in suspend if you turn on sleeping while atomic debugging option in kernel build and the patch fixes it.
Regards Santosh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
