** Tags removed: verification-failed-quantal verification-failed-raring
** Description changed:
SRU Justification:
Impact:
Users of the 3.5/3.8 kernel will have poor network throughput when using
OpenStack Neutron depending on their setup.
Fix:
- These patches are all in
Works for me.
** Tags removed: verification-needed-quantal
** Tags added: verification-done-quantal
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Title:
usbaudio: unit X:
Public bug reported:
We should have an autopkgtest for crash to ensure it works!
** Affects: crash (Ubuntu)
Importance: Medium
Assignee: Chris J Arges (arges)
Status: In Progress
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Here is a base patch that has been tested on 13.10 and Debian 7.
I will submit this to debian first.
** Patch added: crash_autopkgtest_v1.debdiff
https://bugs.launchpad.net/ubuntu/+source/crash/+bug/1217474/+attachment/3790784/+files/crash_autopkgtest_v1.debdiff
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debian bug filed here:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=721095
** Bug watch added: Debian Bug tracker #721095
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=721095
** Also affects: crash (Debian) via
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=721095
Importance:
[Regression Potential]
* The following patches fix the issue:
665e205c1
32263dd1b
http://patchwork.ozlabs.org/patch/294312/
Two are upstream patches, while the last one hasn't been accepted
upstream yet.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Chris J Arges (arges
** Changed in: linux (Ubuntu)
Status: Incomplete = In Progress
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
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** Description changed:
[Impact]
* When restoring an iptable in a network namespace, if the network namespace
is deleted the kernel crashes.
[Test Case]
- ipt-restore is attached to this bug.
-
- % sudo -s
+ $ sudo -s
# ip netns add foobar
- # ip netns exec foobar iptables-restore
)
Status: New = Fix Released
** Changed in: linux (Ubuntu Precise)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux (Ubuntu Quantal)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux (Ubuntu)
Assignee: Chris J Arges (arges) = (unassigned
: Chris J Arges (arges)
Status: In Progress
** Tags: bot-stop-nagging
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Title:
cgroup cpu capping via cpu.cfs_quota can cause
)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Trusty)
Importance: Medium
Assignee: Chris J Arges (arges)
Status: In Progress
** Changed in: linux (Ubuntu Quantal)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux (Ubuntu Precise
** Changed in: linux (Ubuntu Raring)
Status: New = In Progress
** Changed in: linux (Ubuntu Quantal)
Status: New = In Progress
** Changed in: linux (Ubuntu Precise)
Status: New = In Progress
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** Description changed:
[Impact]
* When restoring an iptable in a network namespace, if the network namespace
is deleted the kernel crashes.
[Test Case]
$ sudo -s
# ip netns add foobar
# ip netns exec foobar iptables -A OUTPUT -m recent --rcheck --rsource
# ip netns del foobar
** Description changed:
SRU Justification:
Impact:
When using cgroup's cpu capping features via the cpu.cfs_quota setting a race
condition can occur such that a task has its timer disabled and no longer gets
scheduled on the runqueue.
- This has been observed when setting cpu capping
@william,
Hi! What versions is this affecting you on? I know this affects quantal, but
wanted to make sure this fix makes it into appropriate versions.
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** Description changed:
[Impact]
* When restoring an iptable in a network namespace, if the network namespace
is deleted the kernel crashes.
[Test Case]
$ sudo -s
# ip netns add foobar
# ip netns exec foobar iptables -A OUTPUT -m recent --rcheck --rsource
# ip netns del foobar
** Tags added: kernel-key
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https://bugs.launchpad.net/bugs/1201869
Title:
poor networking throughput across an OpenStack Neutron router on
3.5/3.8 kernels
Status in
** Tags added: kernel-key
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Title:
linux-image-generic-lts-quantal does not have proper Provides fields
Status in “linux” package
Looks like with these patch we get the following crash:
PID: 6752 TASK: 8817d41e1700 CPU: 13 COMMAND: ip
#0 [8817d2be33f0] machine_kexec at 8103bbda
#1 [8817d2be3460] crash_kexec at 810bc028
#2 [8817d2be3530] oops_end at 8169f098
#3 [8817d2be3560]
Another related fix for this is here:
commit f45a5c267da35174e22cec955093a7513dc1623d
Author: Eric Dumazet eduma...@google.com
Date: Fri Feb 8 20:10:49 2013 +
veth: fix NULL dereference in veth_dellink()
commit d0e2c55e7c940 (veth: avoid a NULL deref in veth_stats_one)
.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Fix Released
** Affects: linux (Ubuntu Precise)
Importance: Medium
Assignee: Chris J Arges (arges)
Status: In Progress
** Affects: linux (Ubuntu Quantal)
Importance: Medium
Assignee: Chris J Arges (arges
This is already fixed in precise/raring due to upstream stable work.
** Changed in: linux (Ubuntu Precise)
Status: In Progress = Fix Released
** Changed in: linux (Ubuntu Raring)
Status: In Progress = Fix Released
** Changed in: linux (Ubuntu Precise)
Assignee: Chris J Arges
** Changed in: linux (Ubuntu Precise)
Status: Fix Released = Triaged
** Changed in: linux (Ubuntu Precise)
Assignee: (unassigned) = Chris J Arges (arges)
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https
My mistake, this actually needs to be submitted to 3.2.x stable.
** Description changed:
SRU Justification:
Impact: Users of the 3.5 kernel may not be able to use their usbaudio
devices.
Fix: commit 61ac51301e6c6d4ed977d7674ce2b8e713619a9b upstream. This is
already applied to
** Description changed:
SRU Justification:
- Impact: Users of the 3.5 kernel may not be able to use their usbaudio
devices.
- Fix: commit 61ac51301e6c6d4ed977d7674ce2b8e713619a9b upstream. This is
already applied to 3.2 and 3.8 kernels.
+ Impact: Users of the 3.2/3.5 kernel may
I believe this issue is related to bug 1160490.
I have test ifupdown packages there that may eliminate a race condition based
on an upstream patch. Please give them a test and provide feedback. This solved
my issue in #35.
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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
** Also affects: grub2 (Ubuntu Precise)
Importance: Undecided
Status: New
** Also affects: kexec-tools (Ubuntu Precise)
Importance: Undecided
Status: New
** Also affects: grub2 (Ubuntu Quantal)
Importance: Undecided
Status: New
** Also affects: kexec-tools (Ubuntu
: kexec-tools (Ubuntu Saucy)
** No longer affects: kexec-tools (Ubuntu Trusty)
** Changed in: grub (Ubuntu)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: grub (Ubuntu)
Importance: Undecided = Medium
** Changed in: grub (Ubuntu)
Status: New = In Progress
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** Also affects: kexec-tools (Ubuntu)
Importance: Undecided
Status: New
** Changed in: kexec-tools (Ubuntu)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: kexec-tools (Ubuntu)
Importance: Undecided = Medium
** Changed in: kexec-tools (Ubuntu)
Status: New
Pushed changes into kexec-tools trusty. Let's test these changes first,
then modify the grub packages in earlier releases via SRU if trusty is
working fine.
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-nagging
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Status: New = In Progress
I need to find if the problem is with linux or openvswitch.
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Title:
oops using openvswitch 1.4.6 with 3.5 series kernel
Status in
** Changed in: linux (Ubuntu Precise)
Importance: Medium = High
** Changed in: linux (Ubuntu Raring)
Importance: Medium = High
** Changed in: linux (Ubuntu Quantal)
Importance: Medium = High
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Arges (arges)
Status: In Progress
** Affects: linux (Ubuntu Quantal)
Importance: Medium
Assignee: Chris J Arges (arges)
Status: In Progress
** Affects: linux (Ubuntu Raring)
Importance: Medium
Assignee: Chris J Arges (arges)
Status: In Progress
: Undecided
Status: New
** Also affects: linux (Ubuntu Quantal)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Saucy)
Importance: Medium
Assignee: Chris J Arges (arges)
Status: New
** Also affects: linux (Ubuntu Raring)
Importance: Undecided
On 3.8 I have been able to solve the problem with two patches:
84d17192d2afd52aeba88c71ae4959a015f56a38
57eccb830f1cc93d4b506ba306d8dfa685e0c88f
Doing more extensive testing now.
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** Tags removed: verification-quantal-done
** Tags added: verification-done-quantal
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Title:
poor networking throughput across an
= Fix Released
** Changed in: linux (Ubuntu Quantal)
Status: New = In Progress
** Changed in: linux (Ubuntu Quantal)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux (Ubuntu Quantal)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu Raring)
Importance
A test build is here:
http://people.canonical.com/~arges/lp1088433.1/
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https://bugs.launchpad.net/bugs/1088433
Title:
PERCPU: allocation failed when loading module kvm
** Changed in: qemu-kvm (Ubuntu)
Assignee: (unassigned) = Chris J Arges (arges)
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Title:
Live Migration Causes Performance
** Changed in: qemu-kvm (Ubuntu)
Status: Triaged = In Progress
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Title:
Live Migration Causes Performance Issues
Status in
: High
Assignee: Chris J Arges (arges)
Status: In Progress
** Changed in: qemu-kvm (Ubuntu Precise)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: qemu-kvm (Ubuntu Quantal)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: qemu-kvm (Ubuntu Raring
** Description changed:
+ SRU Justification:
+
+ Impact: When creating thousands of network namespaces the delay in
+ executing commands increases exponentially in kernels before 84d17192.
+
+ Fix: In 84d17192 in the upstream kernel, locking code in fs/namespace.c
+ is greatly improved
** Tags added: kernel-da-key
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https://bugs.launchpad.net/bugs/996369
Title:
bond slave interface sometimes does not come up on boot
Status in “linux” package in Ubuntu:
I've been able to reproduce a similar issue.
To test:
1) Create a VM with the latest image, and add 12 network interfaces.
2) Use the attached interfaces.lp996369
3) Add something like this to rc.local to reproduce the issue:
sleep 60
if [ `ifconfig | grep eth | wc -l` = 12 ]; then
echo
** Tags removed: kernel-da-key
** Tags added: kernel-key
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Title:
bond slave interface sometimes does not come up on boot
Status in
git tag --contains on the patches I see:
99a1224fd2b5d50a19977d5bbc0341793a16dcc7 - Ubuntu-3.2.0-56.86
6a0e09413c4106ed6925e235acd3b0010c6ea93e - Ubuntu-3.5.0-43.66
c58f8db5cfbcc3f7ba35c24edc752bb446d9c85d - Ubuntu-3.8.0-33.48
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A bisection reveals that the following patch solves the issue:
8093315a91340bca52549044975d8c7f673b28a1 veth: extend device features
However it relies on:
2681128f0ced8aa4e66f221197e183cc16d244fe veth: reduce stat overhead
For a clean cherry-pick.
And after building and testing the following bug
** Description changed:
+ SRU Justification:
+
+ Impact:
+ Users of the 3.5/3.8 kernel will have poor network throughput when using
OpenStack Neutron depending on their setup.
+
+ Fix:
+ These patches are all in Ubuntu-3.9.0-7.15 / v3.9-rc1:
+ 2681128f0ced8aa4e66f221197e183cc16d244fe
+
** Description changed:
SRU Justification:
Impact:
Users of the 3.5/3.8 kernel will have poor network throughput when using
OpenStack Neutron depending on their setup.
Fix:
These patches are all in Ubuntu-3.9.0-7.15 / v3.9-rc1:
2681128f0ced8aa4e66f221197e183cc16d244fe
Public bug reported:
The package does not have a proper Provides: field for linux-image,
linux-headers, and linux-debug.
This works fine in precise/quantal/raring and precise-lts-raring.
** Affects: linux (Ubuntu)
Importance: Medium
Assignee: Chris J Arges (arges)
Status
** Changed in: crash (Ubuntu)
Assignee: Louis Bouchard (louis-bouchard) = Chris J Arges (arges)
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https://bugs.launchpad.net/bugs/1251268
Title:
Please merge crash
** Description changed:
- Current Ubuntu : 6.1.6-1
+ Current Ubuntu : 7.0.2-1
Current Debian : 7.0.3-3
** Branch unlinked: lp:~louis-bouchard/ubuntu/trusty/crash/crash
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Its merged.
** Changed in: crash (Ubuntu)
Status: In Progress = Fix Released
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Title:
Please merge crash-7.0.3-3 (main) from
** Description changed:
SRU Justification:
Impact: When creating thousands of network namespaces the delay in
executing commands increases exponentially in kernels before 84d17192.
Fix: In 84d17192 in the upstream kernel, locking code in fs/namespace.c
is greatly improved
** Changed in: linux (Ubuntu Precise)
Status: In Progress = Won't Fix
** Changed in: linux (Ubuntu Precise)
Assignee: Chris J Arges (arges) = (unassigned)
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https
** Changed in: linux (Ubuntu Raring)
Status: Confirmed = In Progress
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https://bugs.launchpad.net/bugs/1189998
Title:
bluetooth disconnection corrupts memory and
** Changed in: linux (Ubuntu Raring)
Assignee: Chris J Arges (arges) = (unassigned)
** Changed in: linux (Ubuntu Raring)
Status: In Progress = Confirmed
** Changed in: linux (Ubuntu Raring)
Status: Confirmed = New
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** Changed in: linux (Ubuntu Precise)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux (Ubuntu Quantal)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux (Ubuntu Raring)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux
** Description changed:
+ SRU Justification:
+
+ Impact: Large pastes over 4KB in a console may not be pasted correctly.
+
+ Fix: A patch was posted here https://lkml.org/lkml/2013/9/3/539, that
+ resolves the issue. It is not upstreamed yet, pending additional
+ analysis.
+
+ Testcase:
+ 1.
SRU Patches sent to ML for P/Q/R.
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https://bugs.launchpad.net/bugs/1208740
Title:
Large pastes into readline enabled programs causes breakage from
kernels v2.6.31
Sent pull request for saucy.
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Title:
bluetooth disconnection corrupts memory and causes kernel panic
Status in “linux” package in
A test build of the patch identified here:
https://lkml.org/lkml/2013/9/3/539
Can be found here:
http://people.canonical.com/~arges/lp1208740
I've tested with the test case described in #3 and the patched kernel
solves this issue.
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Sauce patch sent to kernel ML for Saucy.
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Title:
Large pastes into readline enabled programs causes breakage from
kernels v2.6.31
@racb, thanks for correcting those typos!
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https://bugs.launchpad.net/bugs/1217474
Title:
basic autopkgtest for crash
Status in “crash” package in Ubuntu:
Fix Committed
Can you test this kernel built with lockdep debugging on and see what
output it provides? It also may be worthwhile to getting a crashdump if
lockdep debugging is inconclusive.
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And the link to the build is here:
http://people.canonical.com/~arges/lp1314274/
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https://bugs.launchpad.net/bugs/1314274
Title:
BUG in nf_nat_cleanup_conntrack
Status in
** Also affects: linux (Ubuntu Precise)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Precise)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux (Ubuntu Precise)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu Precise
** Description changed:
+ SRU Justification:
+
+ Impact:
+ When creating new network namespace dmesg can show the following :
unregister_netdevice: waiting for lo to become free. Usage count = 1
+
+ Fix:
+ Stefan Bader's SAUCE patch has fixed this for Quantal: UBUNTU: SAUCE:
I assume there wasn't anything else interesting in the kernel logs... this just
looks similar to the existing bug.
Can you get a proper crash dump when this issue occurs?
https://wiki.ubuntu.com/Kernel/CrashdumpRecipe
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Verified on 3.2.0-63-virtual.
** Tags removed: verification-needed-precise
** Tags added: verification-done-precise
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https://bugs.launchpad.net/bugs/1021471
Title:
** Changed in: linux (Ubuntu)
Assignee: Chris J Arges (arges) = (unassigned)
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https://bugs.launchpad.net/bugs/736226
Title:
bonding inside a bridge does not work when
Public bug reported:
I cannot boot my haswell machine in 14.04 unless I use 'recovery' mode.
I get the following backtrace:
[ 10.770854] WARNING: CPU: 0 PID: 74 at
/build/buildd/linux-3.13.0/drivers/gpu/drm/i915/intel_pm.c:5817
i915_request_power_well+0x77/0x80 [i915]()
[ 10.772266]
Same issue with mainline 3.15: 14186fea0cb06bc43181ce239efe0df6f1af260a.
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Title:
WARNING: CPU: 0 PID: 74 at
Adding 'nomodeset' to the commandline options is a valid workaround for
me.
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Title:
WARNING: CPU: 0 PID: 74 at
Public bug reported:
[157242.574746] WARNING: CPU: 4 PID: 71 at
/build/buildd/linux-3.13.0/fs/sysfs/group.c:214 sysfs_remove_group+0xc6/0xd0()
[157242.574748] sysfs group 81cab480 not found for kobject 'card3'
[157242.574750] Modules linked in: nls_utf8 isofs nls_iso8859_1 ipt_MASQUERADE
)
Status: New = Invalid
** Changed in: linux-lts-raring (Ubuntu Precise)
Status: New = Fix Released
** Changed in: linux-lts-raring (Ubuntu Precise)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux-lts-raring (Ubuntu Precise)
Importance: Undecided = Medium
** Changed in: pcsc-lite (Ubuntu)
Importance: Undecided = High
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https://bugs.launchpad.net/bugs/1307109
Title:
Alcor Micro AU9540 keeps powering down when card is
An example of a non-working log:
http://pastebin.ubuntu.com/7250315/
An example of a working log:
http://pastebin.ubuntu.com/7250304/
The main differences I see start after here in the log:
0003 winscard.c:261:SCardConnect() Attempting Connect to Alcor Micro AU9540
00 00 using protocol: 3
** Changed in: linux (Ubuntu Precise)
Assignee: Louis Bouchard (louis-bouchard) = Chris J Arges (arges)
** Changed in: linux (Ubuntu)
Assignee: Louis Bouchard (louis-bouchard) = (unassigned)
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Can those affected by this issue test this build with the patch identified by
@kamatam?
http://people.canonical.com/~arges/lp1233175/
Thanks!
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A similar case is here:
http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg351591.html
It seems like using NUMA with high load MongoDB workloads are factors in
causing this crash.
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So I see that get_data_rates is returning an error, are there
alternative Control USB bytes we need to send? Or do we think this
failure is because of something else (reader clock being stopped.)
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Hit this same bug on my X220. Will try mainline and see if it happens again.
Similar reports:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1312996
https://bugzilla.redhat.com/show_bug.cgi?id=1060387
** Changed in: linux (Ubuntu)
Status: Incomplete = New
** Bug watch added: Red Hat
Link to upstream bug: https://bugzilla.kernel.org/show_bug.cgi?id=65191
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Status: New = Confirmed
** Bug watch added: Linux Kernel Bug Tracker #65191
Looks like there is confirmation on the upstream bug and patch is upstream:
945b2b2d259d1a4364a2799e80e8ff32f8c6ee6f
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Title:
BUG in
** Changed in: linux (Ubuntu Lucid)
Assignee: Chris J Arges (arges) = (unassigned)
** Changed in: linux (Ubuntu Lucid)
Status: In Progress = New
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https
Request for stable inclusion sent:
http://www.spinics.net/lists/netdev/msg287462.html
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https://bugs.launchpad.net/bugs/1314274
Title:
BUG in nf_nat_cleanup_conntrack
** No longer affects: linux (Ubuntu Quantal)
** No longer affects: linux (Ubuntu Saucy)
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Title:
echo string to /dev/kmsg fails to
After doing a bisect, I found the first bad commit is:
7ff9554bb578ba02166071d2d487b7fc7d860d62
** Description changed:
[Impact]
In the precise 3.2 series kernel writing strings to /dev/kmsg appears and
dmesg and /var/log/syslog, in 3.5 series kernel this does not happen properly
even with
Before that patch if we echo something into /dev/kmsg we get:
4[ 35.084348] testing
If we do it on or after that patch we get:
12[ 71.091005] test
This change makes sense from the commit message All userspace-injected
messages enforce a
facility value 0 now, to be able to reliably
Sent email to rsyslog about this:
http://lists.adiscon.net/pipermail/rsyslog/2014-June/037843.html
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Title:
echo string to /dev/kmsg
Ok so the N is both the priority and facility numbers combined. Where
the lowest 3 bits are priority and any upper bits are facility. By
default any userspace log is 1, and only kernel messages originating
from the kernel can be 0.
http://www.mjmwired.net/kernel/Documentation/ABI/testing/dev-kmsg
** Description changed:
+ SRU Justification:
+
+ [Impact]
+ A race condition can occur that can be triggered when cleaning up LXC
containers that use NAT/netns.
+
+ [Fix]
+
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=945b2b2d259d1a4364a2799e80e8ff32f8c6ee6f
+
+
Ok here is the workaround:
in /etc/rsyslog.conf we need to add:
$KLogPermitNonKernelFacility on
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Title:
echo string to /dev/kmsg
Attaching a patch here for utopic. I know there is a pending merge, so
perhaps this can be applied on top of that merge.
** Changed in: linux (Ubuntu)
Status: In Progress = Invalid
** Changed in: rsyslog (Ubuntu)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: linux
Marking this as affecting trusty/precise because those series can run
3.5+ kernels.
** Description changed:
[Impact]
In the precise 3.2 series kernel writing strings to /dev/kmsg appears and
dmesg and /var/log/syslog, in 3.5 series kernel this does not happen properly
even with the
** No longer affects: linux (Ubuntu Precise)
** No longer affects: linux (Ubuntu Trusty)
** Changed in: rsyslog (Ubuntu Precise)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: rsyslog (Ubuntu Trusty)
Assignee: (unassigned) = Chris J Arges (arges)
** Changed in: rsyslog
Uploaded for Utopic; after it lands in -updates and seems to not break
things, I'll look at SRU'ing into previous releases.
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Title:
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