Messages in this thread | | | From | John Stultz <> | Subject | [PATCH 0/7] 3.4-stable: Fix for leapsecond caused hrtimer/futex issue | Date | Tue, 17 Jul 2012 02:39:49 -0400 |
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Here is backport of the leapsecond fixes to 3.4-stable. These are very straight forward, and backported to 3.4.x with no collisions or changes.
This patchset resolve the early hrtimer/futex expiration issue widely seen after the June 30th leapsecond.
I've booted and tested this patchset on two boxes and run through a number of leapsecond related stress tests. However, additional testing and review would be appreciated.
The original commits backported in this set are:
f55a6faa384304c89cfef162768e88374d3312cb hrtimer: Provide clock_was_set_delayed() 4873fa070ae84a4115f0b3c9dfabc224f1bc7c51 timekeeping: Fix leapsecond triggered load spike issue 5b9fe759a678e05be4937ddf03d50e950207c1c0 timekeeping: Maintain ktime_t based offsets for hrtimers 196951e91262fccda81147d2bcf7fdab08668b40 hrtimers: Move lock held region in hrtimer_interrupt() f6c06abfb3972ad4914cef57d8348fcb2932bc3b timekeeping: Provide hrtimer update function 5baefd6d84163443215f4a99f6a20f054ef11236 hrtimer: Update hrtimer base offsets each hrtimer_interrupt 3e997130bd2e8c6f5aaa49d6e3161d4d29b43ab0 timekeeping: Add missing update call in timekeeping_resume()
I've already done backports to all the stable kernels to 2.6.32, and will be sending them out shortly.
Please let me know if you have any comments or feedback.
thanks -john
Cc: Prarit Bhargava <prarit@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Linux Kernel <linux-kernel@vger.kernel.org>
John Stultz (3): 3.4.x: hrtimer: Provide clock_was_set_delayed() 3.4.x: timekeeping: Fix leapsecond triggered load spike issue 3.4.x: hrtimer: Update hrtimer base offsets each hrtimer_interrupt
Thomas Gleixner (4): 3.4.x: timekeeping: Maintain ktime_t based offsets for hrtimers 3.4.x: hrtimers: Move lock held region in hrtimer_interrupt() 3.4.x: timekeeping: Provide hrtimer update function 3.4.x: timekeeping: Add missing update call in timekeeping_resume()
include/linux/hrtimer.h | 10 ++++++- kernel/hrtimer.c | 53 +++++++++++++++++++++++++------------ kernel/time/timekeeping.c | 64 +++++++++++++++++++++++++++++++++++++++++++-- 3 files changed, 108 insertions(+), 19 deletions(-)
-- 1.7.9.5
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