This bug was fixed in the package linux - 3.2.0-38.60
---
linux (3.2.0-38.60) precise-proposed; urgency=low
[Luis Henriques]
* Release Tracking Bug
- LP: #1124013
[ Herton Ronaldo Krzesinski ]
* SAUCE: fix i915 regression after commit 9594e7e
- LP: #1119809
linux
I tried the proposed 3.2.0-38 and confirmed that that fixed the problem.
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Title:
Unplugging USB Headset causes Kernel Panic
To manage
I just tested it, seems to be working.
Marking as verification-done-precise
** Tags added: verification-done-precise
** Tags removed: verification-needed-precise
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I am now away from the user that had this specific issue. Before
leaving, I updated the machine to use the lts-quantal kernel (listed
above), and haven't had reports of the kernel panics since, but this
hasn't been thoroughly tested yet.
I am hoping someone else with this issue is able to test
This bug is awaiting verification that the kernel for Precise in
-proposed solves the problem (3.2.0-38.59). Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-precise' to 'verification-done-precise'.
If verification is not
** Changed in: linux (Ubuntu Precise)
Status: In Progress = Fix Committed
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Title:
Unplugging USB Headset causes Kernel Panic
To manage
I have just run into this bug with a user who has the the stable 3.2
series in 12.04 (32 bit, all updates applied: can't immediately confirm
their kernel version but it is the the 3.2.x).
I am wondering if anyone has any info on if the 3.5 series (package in
precise to provide this:
*** This bug is a duplicate of bug 1091756 ***
https://bugs.launchpad.net/bugs/1091756
** This bug has been marked a duplicate of bug 1091756
12.04 Kernel Panic when removing USB headphones
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** This bug is no longer a duplicate of bug 1091756
12.04 Kernel Panic when removing USB headphones
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Title:
Unplugging USB Headset causes
** Description changed:
+ SRU Justification:
+
+ Impact: When using a USB audio headset with pulseaudio, if one unplugs
+ the headset the kernel will panic.
+
+ Fix: This issue was because of some stable patches that were backported.
The problem was shown to Takashi Iwai (upstream alsa),
SRU sent to ubuntu ktml.
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Title:
Unplugging USB Headset causes Kernel Panic
To manage notifications about this bug go to:
** Tags removed: needs-bisect
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Title:
Unplugging USB Headset causes Kernel Panic
To manage notifications about this bug go to:
Going to work on cherry-picking/SRUing this:
http://git.kernel.org/?p=linux/kernel/git/stable/linux-
stable.git;a=commit;h=115b96e58609cff057d22d0e6118dae093763461
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Takashi Iwai has posted an update here:
http://www.mail-archive.com/stable@vger.kernel.org/msg29403.html
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https://bugs.launchpad.net/bugs/1097396
Title:
Unplugging USB Headset causes
Ok I've bisected down to this commit causing the issue:
502fac43542acaa225492e5d6f6b5cb0df7fc86c is the first bad commit
commit 502fac43542acaa225492e5d6f6b5cb0df7fc86c
Author: Takashi Iwai ti...@suse.de
Date: Fri Oct 12 15:12:55 2012 +0200
ALSA: usb-audio: Fix races at disconnection
http://people.canonical.com/~arges/lp1097396/
A fix with this revert can be tested here. So far it works for me, I can
still use the usb headset properly.
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Here is a backtrace from crash:
KERNEL: kernel_link
DUMPFILE: dump.201301181214 [PARTIAL DUMP]
CPUS: 4
DATE: Fri Jan 18 12:14:12 2013
UPTIME: 00:00:37
LOAD AVERAGE: 0.76, 0.19, 0.06
TASKS: 341
NODENAME: ubuntu-ThinkPad-X220
Commented on linux stable branch:
http://www.mail-archive.com/stable@vger.kernel.org/msg29160.html
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Title:
Unplugging USB Headset causes Kernel
** Also affects: linux (Ubuntu Precise)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Precise)
Importance: Undecided = High
** Also affects: linux (Ubuntu Raring)
Importance: High
Status: Incomplete
** Changed in: linux (Ubuntu Raring)
Status:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2.37-precise/
fails for me.
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Title:
Unplugging USB Headset causes Kernel Panic
To manage
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2.36-precise/
Also fails for me.
** Changed in: linux (Ubuntu Precise)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux (Ubuntu Precise)
Status: Triaged = In Progress
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http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-quantal/ - works!
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5-quantal/ - works!
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4-precise/ - works!
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.3-precise/ - works!
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3.2.0-34-generic #53-Ubuntu - works
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Title:
Unplugging USB Headset causes Kernel Panic
To manage notifications about this bug go to:
v3.2.33: OK
v3.2.34: panic
Looks like we have a winner!
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Title:
Unplugging USB Headset causes Kernel Panic
To manage notifications about this
Thanks for testing, Tony. I'll start a bisect between these two
kernels. Will you be able to test about 7 - 10 kernels? If so, I'll
post them here as the bisect progresses.
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Actually, the next best this to do would be to see if this is already
fixed in the latest version of 3.2 stable, since it is fixed in
mainline.
Can you test v3.2.36:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2.36-precise/
It might be better for me to perform a Reverse bisect and identify
No kernel panic with the Raring kernel either...
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Title:
Unplugging USB Headset causes Kernel Panic
To manage notifications about this bug go
Can you test the following two upstream kernels to confirm the bug
wasn't introduced by an Ubuntu SAUCE patch:
v3.2.33: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2.33-precise/
v3.2.34: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2.34-precise/
If the bug was introduced upstream, then
** Attachment added: screenshot of kernel panic
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1097396/+attachment/3477320/+files/kernel-panic-20120106-1.jpg
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Hi Tony,
Do you happen to know the last kernel version that did not cause this
panic? You should be able to identify in by reviewing the grub menu or
reviewing /var/log/dpkg.log*
If you can identify the last good and first bad kernel, I can perform a
kernel bisect to identify the commit that
Looks like -35 broke it, as -34 works fine.
I'll give the Raring kernel a try first thing tomorrow.
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Title:
Unplugging USB Headset causes
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