This release has reached end-of-life [0].
[0] https://wiki.ubuntu.com/Releases
** Changed in: linux (Ubuntu Natty)
Status: Triaged => Invalid
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Leap seconds are inserted at the end of a given six-month period. You
can see that the leap second that was inserted at the end of 30 June
2012 (IERS bulletin C43) results in an update for "1 Jul 2012" in your
file. You can then see that the line for "1 Jan 2013", which is not yet
enabled (note t
Sorry, didn't mean to split hairs, For all intents and purposes, with the
holiday schedule, I'm considering Jan 1 2013 as good as Dec 31st 2012.
Point being, Jan 1 has a leap second
ftp://tycho.usno.navy.mil/pub/ntp/leap-seconds.3535142400
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No leap second is scheduled for December 2012.
http://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat
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Title:
Addition of leap second causes spuriou
Any update on a natty build for this? The next leap second is coming up
end of december
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Title:
Addition of leap second causes spuriously high CP
This solution may have introduced a regression problem on Lucid.
https://bugs.launchpad.net/linux-kernel-bugs/+bug/1052323
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Title:
Addition of le
This is fixed already for Quantal as well, and leap_seconds test is
passing on latest Quantal kernel.
** Changed in: linux (Ubuntu Quantal)
Status: In Progress => Fix Released
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htt
By the way, I confirmed through leapseconds test that they are ok on
Oneiric/Precise (using leapseconds test integrated on our autotest).
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Title:
Fixed already on Oneiric (3.0.0-24.40) and Precise (3.2.0-29.46), they
didn't have a BugLink pointing here as the fixes were applied through
stable updates, so no automatic status change to Fix Released.
** Changed in: linux (Ubuntu Oneiric)
Status: Triaged => Fix Released
** Changed in: l
** Tags removed: kernel-key
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Title:
Addition of leap second causes spuriously high CPU usage and futex
lockups
To manage notifications about t
This bug was fixed in the package linux - 2.6.32-42.95
---
linux (2.6.32-42.95) lucid-proposed; urgency=low
[Luis Henriques]
* Release Tracking Bug
- LP: #1027831
[ Upstream Kernel Changes ]
* hugetlb: fix resv_map leak in error path
- LP: #1004621
- CVE-2012-23
I've executed the test case on a Lucid system. Here's the output for the
2.6.32-41.94 kernel:
# uname -a
Linux lucid 2.6.32-41-generic #94-Ubuntu SMP Fri Jul 6 16:51:39 UTC 2012 i686
GNU/Linux
# ./leap_seconds
now: 1343779191:18314044 diff: 0:275081 rem: 0:0
now: 1343779191:518753118 diff: 0:
This bug is awaiting verification that the kernel for Lucid in -proposed
solves the problem (2.6.32-42.95). Please test the kernel and update
this bug with the results. If the problem is solved, change the tag
'verification-needed-lucid' to 'verification-done-lucid'.
If verification is not done by
** Branch linked: lp:ubuntu/lucid-proposed/linux-ec2
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Title:
Addition of leap second causes spuriously high CPU usage and futex
lockups
To man
** Changed in: linux (Ubuntu Lucid)
Status: Triaged => Fix Committed
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Title:
Addition of leap second causes spuriously high CPU usage and
Red Hat bug no. 836803, "RHEL6: Potential fix for leapsecond caused futex
related load spikes":
https://bugzilla.redhat.com/show_bug.cgi?id=836803
** Bug watch added: Red Hat Bugzilla #836803
https://bugzilla.redhat.com/show_bug.cgi?id=836803
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(Revised the script to set its exit status based on the results of the
testing.)
** Attachment removed: "Python script to check for post-leap-second sub-second
timeouts issue"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1020285/+attachment/3220508/+files/post_leapsecond_nanosleep_che
Note that even though it's been a while since the leap second, a kernel
affected by this bug could persist with its desynced internal idea of
time, and the system would show no noticable symptoms until someone
eventually runs an effected application. (See
https://lkml.org/lkml/2012/7/1/203 and
htt
SRUs withdrawn; the window when this would have been a useful SRU has
since passed.
** Changed in: base-files (Ubuntu Lucid)
Status: Fix Committed => Won't Fix
** Changed in: base-files (Ubuntu Natty)
Status: Fix Committed => Won't Fix
** Changed in: base-files (Ubuntu Oneiric)
Debbugs #679882 pulls together a list of various leap-second-related kernel
patches:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=679882
** Bug watch added: Debian Bug tracker #679882
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=679882
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> For the record, those looking for a runtime workaround might prefer:
>
> date -u -s "$(date -u -R)"
>
> The extra switches are to avoid locales and ambiguous timezones getting in
> your way, and the quoting is, well, for proper quoting. :P
For what it's worth, an even simpler command to do th
** Branch linked: lp:ubuntu/lucid-proposed/base-files
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Title:
Addition of leap second causes spuriously high CPU usage and futex
lockups
To ma
** Branch linked: lp:~ubuntu-branches/ubuntu/natty/base-files/natty-
proposed
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Title:
Addition of leap second causes spuriously high CPU usage an
Hello James, or anyone else affected,
Accepted base-files into lucid-proposed. The package will build now and
be available at http://launchpad.net/ubuntu/+source/base-
files/5.0.0ubuntu20.10.04.6 in a few hours, and then in the -proposed
repository.
Please help us by testing this new package. Se
** Description changed:
[Impact]
Software that relies on fine-grained pthread timeouts will spin indefinitely
and drive up system load following a leap second, when the kernel's idea of
time has become desynced and sub-1s timeouts are all hit immediately. Mysql
and Java are in particular r
Hello James, or anyone else affected,
Accepted base-files into natty-proposed. The package will build now and
be available at http://launchpad.net/ubuntu/+source/base-
files/5.0.0ubuntu28.1 in a few hours, and then in the -proposed
repository.
Please help us by testing this new package. See
http
** Branch linked: lp:~ubuntu-branches/ubuntu/oneiric/base-files/oneiric-
proposed
** Branch linked: lp:~ubuntu-branches/ubuntu/precise/base-files/precise-
proposed
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** Description changed:
[Impact]
Software that relies on fine-grained pthread timeouts will spin indefinitely
and drive up system load following a leap second, when the kernel's idea of
time has become desynced and sub-1s timeouts are all hit immediately. Mysql
and Java are in particular r
** Description changed:
+ [Impact]
+ Software that relies on fine-grained pthread timeouts will spin indefinitely
and drive up system load following a leap second, when the kernel's idea of
time has become desynced and sub-1s timeouts are all hit immediately. Mysql
and Java are in particular r
Hello James, or anyone else affected,
Accepted into base-files-proposed and precise-proposed. The package will
build now and be available at
http://launchpad.net/ubuntu/+source/None/6.5ubuntu6.1 in a few hours,
and then in the -proposed repository.
Please help us by testing this new package. See
This bug was fixed in the package base-files - 6.5ubuntu8
---
base-files (6.5ubuntu8) quantal; urgency=low
* Call date -s $(date -R) on upgrade, to resync any clocks that might
be desynced (and causing pthread spinning in the kernel) due to the leap
second. LP: #1020285.
-
** Branch linked: lp:ubuntu/base-files
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Title:
Addition of leap second causes spuriously high CPU usage and futex
lockups
To manage notificati
13:41 < infinity> It would, perhaps, be vaguely close to harmless to have a
one-time addition to the kernel postinst
that just does date -u -s "$(date -u -R)" (extra switches
there to make sure locales and ambiguous
timezones don't mess with you).
13:47 < sla
** Changed in: linux (Ubuntu Lucid)
Assignee: (unassigned) => Brad Figg (brad-figg)
** Changed in: linux (Ubuntu Natty)
Assignee: (unassigned) => Brad Figg (brad-figg)
** Changed in: linux (Ubuntu Oneiric)
Assignee: (unassigned) => Brad Figg (brad-figg)
** Changed in: linux (Ubunt
** Changed in: linux (Ubuntu Precise)
Status: New => Confirmed
** Changed in: linux (Ubuntu Precise)
Status: Confirmed => Triaged
** Changed in: linux (Ubuntu Oneiric)
Status: New => Triaged
** Changed in: linux (Ubuntu Natty)
Status: New => Triaged
** Changed in: li
** Changed in: linux (Ubuntu Quantal)
Assignee: Andy Whitcroft (apw) => Brad Figg (brad-figg)
** Changed in: linux (Ubuntu Quantal)
Status: Triaged => In Progress
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** Changed in: linux (Ubuntu Precise)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Oneiric)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Natty)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Lucid)
Importance: Undecided => Medium
** Chan
Subscribing self.
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Title:
Addition of leap second causes spuriously high CPU usage and futex
lockups
To manage notifications about this bug go
** Also affects: linux (Ubuntu Lucid)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Natty)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Oneiric)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Precise)
Impor
Relevant LKML thread:
https://lkml.org/lkml/2012/7/1/176
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Title:
Addition of leap second causes spuriously high CPU usage and futex
lockups
T
** Changed in: linux (Ubuntu)
Status: New => Triaged
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
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This is perhaps redundant, but for the avoidance of doubt, a reboot
does appear to fix the problem too.
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Title:
Addition of leap second causes sp
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Tags added: kernel-da-key lucid precise
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Title:
Addition of leap second caus
For the record, those looking for a runtime workaround might prefer:
date -u -s "$(date -u -R)"
The extra switches are to avoid locales and ambiguous timezones getting
in your way, and the quoting is, well, for proper quoting. :P
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