** Changed in: linux (Ubuntu)
Status: In Progress => Fix Released
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Title:
kernel oops in free_task
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Hi Olli,
This should be fixed in the 3.11.0-12 kernel. Can you apply the latest
updates and post back if this bug is resolved for you?
Thanks in advance!
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We may have identified the commit that introduced this regression. The
bisect performed in bug 1218004 identified commit a4a23f6 as the first
bad commit.
I built a test kernel with commit a4a23f6 reverted. Can you test this
kernel and see if it resolves the bug?
The test kernel can be downloaded
v.3.10 is still working:
olli@minime:~$ uname -a
Linux minime 3.10.9-031009-generic #201308201935 SMP Tue Aug 20 23:36:10 UTC
2013 x86_64 x86_64 x86_64 GNU/Linux
olli@minime:~$ uptime
08:47:18 up 17:32, 2 users, load average: 1.98, 2.65, 1.73
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Upon trying to reproduce on RC4, I was able to capture attached kernel
panic. The symptom could be triggered within a short amount of time.
re comment #27:
--->---
It sounds like we've concluded the following:
v3.10 final: good
v3.11 rc1: bad
v3.11-rc4: good
v3.11-rc5: bad
---<---
comment #20 r
I did a BIOS upgrade from 1.20 to 1.39 followed by a run of RC4 which
upon connecting the touchpad crashed.
I have not dug in to see if it's related.
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Yeah, that would be great if you can confirm rc4 does not have the bug:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11-rc4-saucy/
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Title:
ke
confirmed that v3.11 final still shows the same symptoms, i.e. crash /
lock soon after I enable the trackpad.
Do you want me to rule out rc4 as working by exercising it for a longer
period (~1d) just to make sure we don't chase ghosts?
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Thanks for the additional testing, Olli. The rc1 kernels in comments
#10 and #22 should be the same builds. One way to tell would be to boot
them and run uname -a, then compare the build stamps.
It sounds like we've concluded the following:
v3.10 final: good
v3.11 rc1: bad
v3.11-rc4: good
v3.11
verifying comment #12 just to be sure:
the system does not lock up with rc4, but does lock up with rc5:
ii linux-image-3.11.0-031100rc4-generic
3.11.0-031100rc4.201308231539 amd64Linux kernel image for
version 3.11.0 on 64 bit x86 SMP
ii linux-image-3.11.0-0311
re comment #23:
revalidated w/o xmir on rc1 kernel from comment #22 - still happens (this is
the 3rd run of rc1)
see attached kern.log from at Aug 30 17:16:25 minime kernel: [
105.040721]
the numerous Aug 30 17:13:XX traces appeared when running xmir and did
not lock the system (2nd run on rc1)
re comment #23:
revalidated w/o xmir on rc1 kernel from comment #22 - still happens
see attached kern.log from at Aug 30 17:16:25 minime kernel: [
105.040721]
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the kernel v3.11-rc1 from comment #22 freezes as soon as I connect the
touchpad.
I am running xmir though in this configuration whereas in the past I was
running plain X
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Hi Olli,
bug 1218004 seems very similar. However, that bug seems to have been
introduced in v3.11-rc1. If possible, can you confirm that you don't
see your bug in v3.11-rc1, which can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11-rc1-saucy/
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I built the next test kernel, which is built up to commit:
201d3dfa4da10ac45b260320b94e2f2f0e10d687
The kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1214931/
Can you test this kernel and post back if it exhibits the bug or not?
c4afd7b95fff2f4964e630d0de90e8bc94ae37f1
-
re comment #15:
linux-
image-3.11.0-031100rc4-generic_3.11.0-031100rc4.201308231048_amd64.deb
ended locking up eventually.
I gave it 2 shots, and think the first one locked immediately after
connecting the trackpad. Short of a verification of the right kernel via
uname -a, I rebooted and wasn't a
connecting the trackpad on rc5 causes the system to freeze, kern.log to
follow
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Title:
kernel oops in free_task
To manage notifications about th
mce log that should have been created during the last run of rc5
** Attachment added: "mcelog"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1214931/+attachment/3784555/+files/mcelog
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Aug 23 10:06:31 minime kernel: [ 4532.566825] magicmouse 0005:05AC:030E.0003:
input,hidraw2: BLUETOOTH HID v1.60 Mouse [ries’s Trackpad] on cc:af:78:ef:62:dd
Aug 23 10:06:35 minime kernel: [ 4537.246692] [ cut here
]
Aug 23 10:06:35 minime kernel: [ 4537.246711] WARNING: C
re comment #14:
disabling the trackpad has me run rc5 now for >1h
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Title:
kernel oops in free_task
To manage notifications about this bug go to
I started a kernel bisect between v3.11-rc4 and v3.11-rc5. The first test
kernel is built up to commit:
201d3dfa4da10ac45b260320b94e2f2f0e10d687
The kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1214931/
Can you test this kernel and post back if it exhibits the bug or no
Olli - try turning off your Bluetooth trackpad.
[ 61.035328] hidraw: raw HID events driver (C) Jiri Kosina
[ 61.091992] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 61.092004] Bluetooth: HIDP socket layer initialized
[ 61.167046] magicmouse 0005:05AC:030E.0001: unknown main item t
2 relevant oops within 1 session at
Aug 22 23:36:47 minime kernel: [ 62.273638] Oops: [#1] SMP
Aug 22 23:36:48 minime kernel: [ 62.498471] Oops: 0010 [#2] SMP
** Attachment added: "kern.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1214931/+attachment/3784236/+files/ke
culprit found:
Linux version 3.11.0-031100rc5-generic
last working version was rc4 as per comment #11
reproduction steps:
boot kernel, start regular (random desktop) usage, i.e. multiple chromium
sessions, xchat, thunderbird, crashes within minutes/seconds
from kern.log (see next attachment)
A
no issues with:
olli@minime:~$ uname -a
Linux minime 3.11.0-031100rc4-generic #201308041735 SMP Sun Aug 4 21:36:46 UTC
2013 x86_64 x86_64 x86_64 GNU/Linux
(skipped rc3)
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no issues with:
olli@minime:~$ uname -a
Linux minime 3.11.0-031100rc1-generic #201307141935 SMP Sun Jul 14 23:36:57 UTC
2013 x86_64 x86_64 x86_64 GNU/Linux
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no issues with:
olli@minime:~$ uname -a
Linux minime 3.10.9-031009-generic #201308201935 SMP Tue Aug 20 23:36:10 UTC
2013 x86_64 x86_64 x86_64 GNU/Linux
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re comment #5 && note to self:
I am not sure that starting w/ v3.11-rc1 is a good point, as the last working
kernel I am running on the system is 3.10.0-6-generic.
starting with 3.10.9-031009 in the search for the last working one
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I have done following steps as per Leann's suggestion:
disable vboxdrv:
root@minime:~# grep vboxdrv /etc/modprobe.d/blacklist.conf
blacklist vboxdrv
remove i915 grub cmdline parameter:
/etc/defaul/grub
# GRUB_CMDLINE_LINUX="i915.i915_enable_rc6=1 i915.i915_enable_fbc=1
i915.lvds_downclock=1"
wi
Looking at the log I see the following:
mce: [Hardware Error]: Machine check events logged
You should install mcelog, and see if it can retrieve more details about the
hardware failure.
I also have an X220, and I can run with 3.11.0-3 without it oopsing
within a few minutes. Perhaps this is some
Hi Olli,
We can perform a kernel bisect to identify the commit that introduced
this bug. It will require testing about 7 - 10 test kernels. We first
need to identify the first bad and last good kernel versions. The
current Saucy kernel was based off of v3.11-rc6. Can you test
v3.11-rc1 to se
** Attachment added: "dmesg shortly before freeze"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1214931/+attachment/3780757/+files/IMG_20130821_080622.jpg
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** Attachment added: "kern.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1214931/+attachment/3780753/+files/kern.log
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Title:
kern
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