Greg, On Tue, 27 Sep 2016 16:27:57 +0200 <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > This is a note to let you know that I've just added the patch titled > > hrtimer: Add support for CLOCK_MONOTONIC_RAW > > to the 4.4-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary > > The filename of the patch is: > hrtimer-add-support-for-clock_monotonic_raw.patch > and it can be found in the queue-4.4 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable@xxxxxxxxxxxxxxx> know about it. > > > From 9c808765e88efb6fa6af7e2206ef89512f1840a7 Mon Sep 17 00:00:00 2001 > From: Marc Zyngier <marc.zyngier@xxxxxxx> > Date: Fri, 15 Jan 2016 17:41:08 +0000 > Subject: hrtimer: Add support for CLOCK_MONOTONIC_RAW > > From: Marc Zyngier <marc.zyngier@xxxxxxx> > > commit 9c808765e88efb6fa6af7e2206ef89512f1840a7 upstream. > > The KVM/ARM timer implementation arms a hrtimer when a vcpu is > blocked (usually because it is waiting for an interrupt) > while its timer is going to kick in the future. > > It is essential that this timer doesn't get adjusted, or the > guest will end up being woken-up at the wrong time (NTP running > on the host seems to confuse the hell out of some guests). > > In order to allow this, let's add CLOCK_MONOTONIC_RAW support > to hrtimer (it is so far only supported for posix timers). It also > has the (limited) benefit of fixing de0421d53bfb ("mac80211_hwsim: > shuffle code to prepare for dynamic radios"), which already uses > this functionnality without realizing wasn't implemented (just being > lucky...). > > Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx> > Cc: Tomasz Nowicki <tn@xxxxxxxxxxxx> > Cc: Christoffer Dall <christoffer.dall@xxxxxxxxxx> > Link: http://lkml.kernel.org/r/1452879670-16133-2-git-send-email-marc.zyngier@xxxxxxx > Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Cc: Felix Fietkau <nbd@xxxxxxxx> > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Please drop that patch. It is utterly broken, and was reverted in mainline with commit 82e88ff1ea94 ("hrtimer: Revert CLOCK_MONOTONIC_RAW support"). Thanks, M. -- Jazz is not dead. It just smells funny. -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html