2011/6/29 Rafael J. Wysocki <rjw@xxxxxxx>: > One of the roles of the PM core is to prevent different PM callbacks > executed for the same device object from racing with each other. > Unfortunately, after commit e8665002477f0278f84f898145b1f141ba26ee26 > (PM: Allow pm_runtime_suspend() to succeed during system suspend) > runtime PM callbacks may be executed concurrently with system > suspend/resume callbacks for the same device. (...) > Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx> A quick question: is there some specific reason why this patch should not go into the 3.0.y stable releases? We are trying to produce a runtime PM system of product quality based on 3.0.y and we've already had to backport this patch ourselves to get things stable. We have also backported: PM: Introduce generic "noirq" callback routines for subsystems (v2) PM / Runtime: Update documentation of interactions with system sleep PM / Runtime: Add new helper function: pm_runtime_status_suspended() And now it seems to be sufficient to get this thing going. Yours, Linus Walleij _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/linux-pm
