Public bug reported:
I've hit a bug present in 3.2.0-37 that causes my KVM virtual machines
to lockup on occasion, possibly related to this this change in 3.2.0-32
* time: Avoid making adjustments if we haven't accumulated anything
- LP: #1053039
I believe there is already an upstream fix to this patch that I believe
resolves my issue.
I'd like to request that this patch be included in precise.
Commit-ID: 1d17d17484d40f2d5b35c79518597a2b25296996
Gitweb: http://git.kernel.org/tip/1d17d17484d40f2d5b35c79518597a2b25296996
Author: Ingo Molnar <mi...@kernel.org>
AuthorDate: Sat, 4 Aug 2012 21:21:14 +0200
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Sun, 5 Aug 2012 12:37:14 +0200
time: Fix adjustment cleanup bug in timekeeping_adjust()
Tetsuo Handa reported that sporadically the system clock starts
counting up too quickly which is enough to confuse the hangcheck
timer to print a bogus stall warning.
Commit 2a8c0883 "time: Move xtime_nsec adjustment underflow handling
timekeeping_adjust" overlooked this exit path:
} else
return;
which should really be a proper exit sequence, fixing the bug as a
side effect.
Also make the flow more readable by properly balancing curly
braces.
Reported-by: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> wrote:
Tested-by: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> wrote:
Signed-off-by: Ingo Molnar <mi...@kernel.org>
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
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https://bugs.launchpad.net/bugs/1116362
Title:
KVM Lockup Bug
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