Thank you for taking the time to report this bug and helping to make Ubuntu
better. We are closing this bug report because it lacks the information we need
to investigate the problem, as described in the previous comments. Please
reopen it if you can give us the missing information, and don't he
** Changed in: linux (Ubuntu)
Status: Triaged => Incomplete
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Frequent random KVM host kernel OOPS
https://bugs.launchpad.net/bugs/361819
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This bug report was marked as Triaged a while ago but has not had any
updated comments for quite some time. Please let us know if this issue
remains in the current Ubuntu release,
http://www.ubuntu.com/getubuntu/download . If the issue remains, click
on the current status under the Status column
I haven't, though it is possible I just haven't spent enough time
testing it in karmic yet.
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Frequent random KVM host kernel OOPS
https://bugs.launchpad.net/bugs/361819
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Can anyone reproduce this on karmic?
:-Dustin
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Frequent random KVM host kernel OOPS
https://bugs.launchpad.net/bugs/361819
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No I haven't been able to confirm it is a kernel issue yet, though I am
planning on devoting some good time to this bug over the next couple
days.
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Frequent random KVM host kernel OOPS
https://bugs.launchpad.net/bugs/361819
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John-
Any update on this? Can you confirm that it's a kernel issue, and not
KVM userspace?
:-Dustin
** Changed in: kvm (Ubuntu)
Status: Confirmed => Incomplete
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Frequent random KVM host kernel OOPS
https://bugs.launchpad.net/bugs/361819
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For info on pinning your CPU, see the cpufreq-selector utility.
http://manpages.ubuntu.com/manpages/jaunty/en/man1/cpufreq-
selector.1.html
:-Dustin
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Frequent random KVM host kernel OOPS
https://bugs.launchpad.net/bugs/361819
You received this bug notification because you are a member of Ubu
** Changed in: linux (Ubuntu)
Status: New => Triaged
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Frequent random KVM host kernel OOPS
https://bugs.launchpad.net/bugs/361819
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Last week, I pulled a stock 2.6.29.3 kernel from kernel.org, built it
with kpkg, and installed kvm-85 on top. It's been completely stable
since, so I expect I will stick with this.
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Frequent random KVM host kernel OOPS
https://bugs.launchpad.net/bugs/361819
You received this bug notification
"but as I recall it also never happens until at least one
suspend/resume"
Until today. Sigh. Nevermind.
May 13 16:38:45 aethereal kernel: [28098.589766] BUG: unable to handle kernel
NULL pointer dereference at
May 13 16:38:45 aethereal kernel: [28098.589774] IP: []
gfn_to_rma
Meanwhile, here's another. This crash seems like it may be correlated
with suspend/resume somehow. It never happens immediately after a
suspend/resume, but as I recall it also never happens until at least one
suspend/resume.
May 12 22:40:01 aethereal kernel: [22670.242629] [ cut here
Dustin -
Could you be more specific about how I would go about "pinning my cpu"?
Thanks.
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Frequent random KVM host kernel OOPS
https://bugs.launchpad.net/bugs/361819
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ubuntu-bugs ma
Michael-
Do you have frequency scaling enabled on the host? If so, could you
disable it, or pin your cpu and see if you see the oops again?
:-Dustin
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Frequent random KVM host kernel OOPS
https://bugs.launchpad.net/bugs/361819
You received this bug notification because you are a member of Ub
Again.
May 7 01:20:10 aethereal kernel: [147379.785707] BUG: unable to handle kernel N
ULL pointer dereference at
May 7 01:20:10 aethereal kernel: [147379.785713] IP: [] gfn_t
o_rmap+0x50/0x70 [kvm]
May 7 01:20:10 aethereal kernel: [147379.785733] PGD cf107067 PUD c7165067 PMD
Subscribing John Johansen, hoping you might have some insight :-)
:-Dustin
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => John Johansen (jjohansen)
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Frequent random KVM host kernel OOPS
https://bugs.launchpad.net/bugs/361819
You received this bug notification because you are a
Thanks for the information, Michael. I'm adding the Ubuntu linux
package, as this looks to be a kernel bug.
:-Dustin
** Changed in: kvm (Ubuntu)
Status: New => Confirmed
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Importan
"unable to handle kernel NULL pointer dereference"
That doesn't sound very healthy.
May 3 08:02:41 aethereal kernel: [237003.338883] BUG: unable to handle kernel
NULL pointer dereference at
May 3 08:02:41 aethereal kernel: [237003.338891] IP: []
gfn_to_rmap+0x22/0x70 [kvm]
M
Hi, the frequency of this problem has been reduced significantly since
I installed kvm-source, however, it has not been completely eliminated.
kvm1:84+dfsg-0ubuntu11
kvm-source 1:84+dfsg-0ubuntu11
linux-image-2.6.28-11-generi
Hello, thanks for the report.
Can you please install the kvm-source package, which will build the
latest kvm module from source for your kernel, and install it? Please
then reboot, and let me know if you can reproduce the error.
Thanks,
:-Dustin
** Changed in: kvm (Ubuntu)
Importance: Undeci
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