Actually, I believe it has not been released yet. The fix is in the
changelog for 4.4.0-48.69, but the latest release of the xenial LTS
kernel is 4.4.0-47.68 where the bug can still be reproduced.
Specifically:
* Xenial update to v4.4.25 stable release (LP: #1634153)
- timekeeping: Fix __ktime_get_fast_ns() regression
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https://bugs.launchpad.net/bugs/1637619
Title:
ext4dist strange timings on ubuntu 16.04
Status in Linux:
New
Status in linux package in Ubuntu:
Fix Released
Bug description:
Reference: https://github.com/iovisor/bcc/issues/790
"The bug is: timekeeping: Avoid taking lock in NMI path with
CONFIG_DEBUG_TIMEKEEPING
The fix is: timekeeping: Fix __ktime_get_fast_ns() regression
Looks like that kernel version has the bug but not the fix.
http://changelogs.ubuntu.com/changelogs/pool/main/l/linux/linux_4.4.0-45.66/changelog";
Apparently this is fixed by commit:
commit 58bfea9532552d422bde7afa207e1a0f08dffa7d
Author: John Stultz [email protected]
Date: Tue Oct 4 19:55:48 2016 -0700
timekeeping: Fix __ktime_get_fast_ns() regression
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