after shutdown though it didnt repeat itself it booted normally
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
To manage no
this just hapenned to me to guest os in virtualbox after cloning , ubuntu host
, kali linux guest
kernel in uname -a says
guest 3.18.0-kali3-amd64 #1 SMP Debian 3.18.6-1~kali2
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https:/
You can take a look at this kernel commit. It is the fix for kernel 3.14
stable tree and has the info about the fix applied to Linux master
branch too:
commit 4c03d4699182312ed42257834b915492af16022a
Author: Peter Zijlstra
Date: Wed Apr 9 16:24:47 2014 +0200
x86,preempt: Fix preemption for
I'm currently experiencing this bug on a Dell PowerEdge R430 server,
clean install of 14.04.2 (kernel 3.16).
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Title:
BUG: soft lockup - CPU#2 stu
** Changed in: linux (Ubuntu Trusty)
Status: Confirmed => Fix Released
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
What was the last known kernel affected by this bug? I would like to
bisect it and find what patch fixed it.
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Title:
BUG: soft lockup - CPU#2 stu
It does not occur anymore for me (kernel 3.13.0-21). I couldn't get from
which update the issue disappeared but now everything's fine. Thanks !
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Ti
Can folks affected by this bug see if the issue still exists with the
latest Trusty kernel and updates?
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Title:
BUG: soft lockup - CPU#2 stuck fo
** Tags added: patch
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
To manage notifications about this bug go to:
https://b
I've got this same issue on Intel Merrifield based device. I managed to
workaround with the attached hackish patch.
I commented on lkml here:
http://www.spinics.net/lists/kernel/msg1716965.html
** Patch added:
"0001-x86-sched-HACK-crazy-workaround-to-avoid-scheduler-r.patch"
https://bugs.lau
How can I test if this still affects me?
I don't currently have Ubuntu installed on the machine, but I can
install it or run something from USB (probably easiest as the installer
runs ubuntu and also has this bug). I guess I have to have select an
experimental kernel somehow?
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** This bug is no longer a duplicate of bug 1275116
lowlatency-flavour crashes and locks up alot
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Title:
BUG: soft lockup - CPU#2 stuck for 22
*** This bug is a duplicate of bug 1275116 ***
https://bugs.launchpad.net/bugs/1275116
Hi,
I still have this soft lockup bug with kernel 3.13.0-17 (no matter if it's the
lowlatency flavour or not, hence not a duplicate of bug #1275116, which seems
resolved now).
Joel and Alin, do you still h
*** This bug is a duplicate of bug 1275116 ***
https://bugs.launchpad.net/bugs/1275116
I get this too. I thought the error messages were just random (my
suspicion was multithreading and IRQs going wild after peeking into the
kernel source), but I recognize them here! And, I don\t recognize it
*** This bug is a duplicate of bug 1275116 ***
https://bugs.launchpad.net/bugs/1275116
** Attachment added: "lshw"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269404/+attachment/3988979/+files/lshw
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*** This bug is a duplicate of bug 1275116 ***
https://bugs.launchpad.net/bugs/1275116
** This bug has been marked a duplicate of bug 1275116
lowlatency-flavour crashes and locks up alot
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Like the others, this one freezes too when using "threadirqs". So the
bug still occurs.
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-
I built the next test kernel, up to the following commit:
5328f35b1584a9849ffe46afa42018946aa43851
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1269404
Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on y
The bug still occurs, this one freezes too.
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
To manage notifications about th
I built the next test kernel, up to the following commit:
1071ec7bc2dabd0a9d12a1ae5570f4fd3ba944ca
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1269404
Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on y
No, I didn't see any "soft lockup" messages.
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
To manage notifications about t
Is it the same bug when the laptop freezes in comment #28? Do you see
the "BUG: soft lockup" message?
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Title:
BUG: soft lockup - CPU#2 stuck for
I forgot something: those errors occur when switching to a tty AFTER
logging in to Unity. If I get to the login screen and then I switch to a
tty, the laptop doesn't freeze when switching to the tty and no errors
are displayed in the tty. Maybe that's somehow relevant.
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I investigated further and something is really messed up with this last
kernel. Every time I switch to a tty, the laptop freezes and the tty
displays a huge list of error messages. And this happens even without
"threadirqs". I'm attaching photos of the errors.
** Attachment added: "pictures - ker
Well, I spoke too soon.
With this kernel, the laptop doesn't freeze on boot. But the laptop
freezes when I click the restart button under Unity, it happened every
time. It doesn't occur with the "sudo reboot" command though.
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This kernel worked, the bug didn't occur.
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
To manage notifications about this
I built the next test kernel, up to the following commit:
2cb85c0845e5826b789d755c97e13e8d5dc85368
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1269404
Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on y
Thanks for testing. During the bisect, we will have some kernels that
have the bug and some that don't, which is to be expected. Eventually,
we will narrow down to which commit introduced the bug.
I'll update the bisect and build the next kernel. I'll post a link
shortly.
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Unfortunately the laptop froze with this kernel too, so the bug still
occurs.
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
I built the next test kernel, up to the following commit:
0b1e73ed225d8f7aeef96b74147215ca8b990dce
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1269404
Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on y
Unfortunately the bug still occurs with the kernel from your latest
comment.
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
Thanks for the update.
I built the next test kernel, up to the following commit:
f9efbce6334844c7f8b9b9459f6d7a6fbc2928e0
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1269404
Can you test that kernel and report back if it has the bug or not. I
will build the nex
Yes, I meant that the bug is still present with this kernel.
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
To manage notif
By "Doesn't work" do you mean it exhibits the bug, or there is some
other issue?
During the bisect, there will be several kernels to test. Some will
exhibit this bug and some will not. I update the bisect with which
kernels have the bug and which do not, and eventually we will locate the
commit
Yes, it was installed successfully. But unfortunately it doesn't work.
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
To ma
Does the linux-image package install? That is the only one you should
need to test. No need to install the headers package.
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Title:
BUG: soft l
The packages you provided do not install successfully. Here's the output
(I've tried a couple of time and the result was the same):
sudo dpkg -i *.deb
(Reading database ... 721241 files and directories currently installed.)
Preparing to unpack
linux-headers-3.12.0-031200-generic_3.12.0-031200.201
** Changed in: linux (Ubuntu Trusty)
Status: Incomplete => Confirmed
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
I started a kernel bisect between v3.12 final and v3.13-rc1. The kernel
bisect will require testing of about 10 - 12 test kernels.
I built the first test kernel, up to the following commit:
5cbb3d216e2041700231bcfc383ee5f8b7fc8b74
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~
Could be a similar issue reported upstream:
https://lkml.org/lkml/2013/12/31/144
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:5
I found out what was causing it: starting with v3.13-rc1, having
"threadirqs" under "GRUB_CMDLINE_LINUX_DEFAULT" in the /etc/default/grub
configuration file causes the behaviour I mentioned above.
After removing "threadirqs" from /etc/default/grub, the bug doesn't
occur any more. I guess this is s
Thanks!
Unfortunately v3.13-rc8 doesn't work either...
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
To manage notificati
Thanks for testing. It sounds like the bug was introduced in 3.13-rc1.
I'll start a bisect between v3.12 final and v3.13-rc1.
The v3.13-rc8 kernel is now out. Can you also give that kernel a test
to see if it still contains the bug:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc8-trusty
** Attachment added: "error photo 1"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269404/+attachment/3950836/+files/2014-01-17%2013.23.05.jpg
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** Attachment added: "error photo 2"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269404/+attachment/3950837/+files/2014-01-17%2013.25.59.jpg
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Both v3.13-rc2 and v3.13-rc1 didn't work. This time I was able to make
photos of the errors. I've attached 2 photos to the bug report...
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Title:
Can you give v3.13-rc2 a try:
v3.13-rc2: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc2-trusty
If 3.13-rc2 also has the bug, can you test v3.13-rc1 to see if it also has the
bug?
v3.13-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc1-trusty
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I've tried the kernels you mentioned and:
- v3.12 final worked
- v3.13-rc3 didn't work
The problem is that the bug behavior changed after a couple of reboots.
I was trying to take a photo of the error messages but I couldn't get a
clear photo and after a few reboots, the error wasn't displayed an
Hello,
The last working kernel was 3.12.0-8-generic and the first for which the
bug started was 3.13.0-1-generic. I'll also try what you said and post
the results.
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Also, can you follow the "Boot options" instructions on the following
wiki to enable additional output on boot:
https://wiki.ubuntu.com/DebuggingKernelBoot
As mentioned on the wiki, it would be great if you can attach a log file
which may have captured any messages you see. If you are unable to
c
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Title:
BUG: soft lockup - CPU#2 stuck for 22s! [systemd-udevd:546]
To mana
I'd like to perform a bisect to figure out what commit caused this
regression. We need to identify the earliest kernel where the issue
started happening as well as the latest kernel that did not have this
issue.
Can you test the following kernels and report back? We are looking for
the first kerne
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