** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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Title:
Wifi wlan0 device not present on Raspberry Pi
I believe the key to the reproducer is having the kdump-tools package
installed in the chroot. The kdump-tools package provides a
/etc/kernel/postinst.d/kdump-tools script, which has the following
snippet:
(Apologies for formatting, the interface removes the leading spaces from
this code)
43
Public bug reported:
Hello,
On systems that have the following combination of hardware...:
1) arm64 CPU
2) ASPEED AST2600 BMC: https://www.aspeedtech.com/server_ast2600/
.. we see no output when connecting a display to the BMC's VGA port.
Upon further investigation, we see that applying the
For me this was a bare metal bionic install on a home personal, multi-
purpose, intranet server (rsyslog, apache, bind9, etc). The message was
triggered 480 times in ~6 hours and 15 minutes before I downgraded. I
didn't notice other issues. I looked at the logs and couldn't see a
pattern of 'cut
I started seeing this too after upgrading to this kernel (from
https://ubuntu.com/security/notices/USN-6081-1):
ii linux-image-generic4.15.0.211.194
ii linux-image-4.15.0-211-generic 4.15.0-211.222
$ cat /proc/version_signature
Ubuntu 4.15.0-211.222-generic 4.15.18
Marking Incomplete, I upgraded to Jammy where this is no longer a
problem
** Changed in: linux-signed-hwe-5.13 (Ubuntu)
Status: New => Incomplete
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Public bug reported:
System running i5-12400F CPU, this is Alder Lake with 6x performance
cores (no efficiency cores).
Booting with linux-image-5.13.0-40-generic is extremely slow. The system
takes over a minute to even log in, usual time is a few seconds. Running
anything even remotely taxing
Hello,
I've tested the focal-proposed versions of nvidia-driver-450-server-
generic and nvidia-470-server-generic, and the changes look good.
Thanks!
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Public bug reported:
The nvidia-driver-XXX-server meta-package "Recommends" nvidia-settings.
I think it would be better to demote nvidia-settings to a "Suggests" for
these packages because of all the following:
- The Ubuntu default behavior is to install "recommended" packages.
- The -server
Seeing this bug on my Dell Inspiron 15, 5515
Ubuntu 20.04.3
5.11.0-36-lowlatency
Seeing one of the following two behaviors everytime it goes into
suspend:
1) The machine goes into suspend okay, and when I press power it doesn't
turn back on from suspend. I hold power to turn off, then press
I started seeing the issues that Sergio mentioned lately as well. I
think this was caused by the recent automatic move from 5.8 to 5.11. I
had the oem kernel installed (20.04 install) but then apt recently moved
me to the hwe-5.8 kernel. More recently apt pulled in hwe-5.11 and I
believe that is
apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456308/+files/ProcInterrupts.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456313/+files/WifiSyslog.txt
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apport information
** Attachment added: "acpidump.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456314/+files/acpidump.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456310/+files/PulseList.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456309/+files/ProcModules.txt
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** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456312/+files/UdevDb.txt
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** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456311/+files/RfKill.txt
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** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456298/+files/IwConfig.txt
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** Attachment added: "Lspci-vt.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456300/+files/Lspci-vt.txt
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apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456296/+files/CRDA.txt
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apport information
** Attachment added: "AudioDevicesInUse.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456295/+files/AudioDevicesInUse.txt
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** Attachment added: "PaInfo.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456304/+files/PaInfo.txt
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** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456307/+files/ProcEnviron.txt
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** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456299/+files/Lspci.txt
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apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456305/+files/ProcCpuinfo.txt
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** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456306/+files/ProcCpuinfoMinimal.txt
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** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456301/+files/Lsusb.txt
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apport information
** Attachment added: "Lsusb-t.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456302/+files/Lsusb-t.txt
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** Attachment added: "Lsusb-v.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456303/+files/Lsusb-v.txt
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** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1912943/+attachment/5456297/+files/CurrentDmesg.txt
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** Tags added: apport-collected
** Description changed:
Kubuntu 20.10
Kernel: 5.8.0-40-generic
CPU: AMD Ryzen 7 3700X
Motherboard: Asrock X570 Taichi
Recently my system has been failing to boot often and I'm left with a
blank screen before I even see my login
** Attachment added: "version.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1912943/+attachment/5456293/+files/version.log
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** Attachment added: "lspci-vnvn.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1912943/+attachment/5456292/+files/lspci-vnvn.log
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Public bug reported:
Kubuntu 20.10
Kernel: 5.8.0-40-generic
CPU: AMD Ryzen 7 3700X
Motherboard: Asrock X570 Taichi
Recently my system has been failing to boot often and I'm left with a
blank screen before I even see my login screen. After a reset (or 2 or
3) I can usually persuade it to boot and
Sorry, I may not have made it obvious. The problem started on Focal but
I have since upgraded to Groovy as I thought a newer kernel may help
given various amdgpu fixes hit the kernel between 5.4 and 5.8.
I do see a pending update for 5.8.0-34 though which I'll install.
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Ah, the included dmesg output doesn't actually have the useful snippet
in it. Please see attached section of log output which runs from when I
attempted to resume the system to when it was rebooted.
** Attachment added: "amd-gpu-resume-fail-syslog.log"
Public bug reported:
I started seeing my system fail to resume from suspend over the last
couple of weeks. It happens about 1 in 5 times maybe? I press the power
button on my system to resume it and my screens stay blank. I am able to
connect to the system remotely over ssh and check syslog to
Thanks John! :)
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Title:
Please unrevert the apparmor audit rule filtering feature
Status in linux package in Ubuntu:
Fix
FYI, John refreshed the patchset to v20 and reenabled audit rule
filtering and submitted to https://lists.ubuntu.com/archives/kernel-
team/2020-October/113932.html. Since this is a significant change, it
will be considered for a stable release update (SRU) after groovy
release (to allow for peer
After more discussion with John, while groovy does have a newer stacking
patchset, it doesn't have the latest patchset that resolves the audit
subsystem. Unfortunately, as of today, all of those patches haven't been
signed-off on yet so there might be future changes.
** Description changed:
Public bug reported:
Ubuntu carried a patch to apparmor for audit rule filtering, but it was
reverted due to conflicts related to secids with earlier LSM stacking
patchsets. The upstream LSM stacking patchset is believed to resolve
these issues and groovy now carries the updated LSM stacking
I can confirm this problem on the following platforms.
Intel NUC 8i5BEH with Ubuntu 18.04
Intel NUC 8i5BEH with Ubuntu 18.04 and the hardware enablement stack
Intel NUC 8i5BEH with Ubuntu 20.04
Intel NUC 10i7FNH with Ubuntu 18.04
Intel NUC 10i7FNH with Ubuntu 18.04 and the hardware enablement
FYI, John provided me a test kernel for 18.04 and it resolved the issue.
This will be the basis of the SRU.
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Title:
'ptrace trace'
I cannot confirm this with the 5.8.0-12 kernel. Eg, with the 5.4 kernel
in groovy, things work fine:
$ cat /proc/version_signature
Ubuntu 5.4.0-42.46-generic 5.4.44
$ sudo modprobe iptable_filter
$ sudo modprobe ip6table_filter
$ lsmod|grep table_filter
ip6table_filter16384 0
ip6_tables
** Summary changed:
- No IPv4 iptable kernel module can be loaded
+ iptable_filter and ip6table_filter cannot be loaded with 5.8 kernel
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I spoke with John and he plans to SRU this. Marking as triaged and
assigning to him. Thanks John!
** Changed in: linux (Ubuntu Xenial)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Xenial)
Status: Confirmed => Triaged
** Changed in: linux (Ubuntu Bionic)
Status:
** Information type changed from Private Security to Public
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Title:
No IPv4 iptable kernel module can be loaded
Status in linux
Thanks John! Is this something that we can get into the next SRU cycle?
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Title:
'ptrace trace' needed to readlink() /proc/*/ns/*
** Summary changed:
- 'ptrace trace' needed to readlink() /proc/*/ns/* files
+ 'ptrace trace' needed to readlink() /proc/*/ns/* files on older kernels
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Public bug reported:
Per 'man namespaces':
"Permission to dereference or read (readlink(2)) these symbolic links is
governed by a ptrace access mode PTRACE_MODE_READ_FSCREDS check; see
ptrace(2)."
This suggests that a 'ptrace read' rule should be sufficient to
readlink() /proc/*/ns/*, which is
*** This bug is a duplicate of bug 1879690 ***
https://bugs.launchpad.net/bugs/1879690
Actually, this is 1879690 which is a bug in the Ubuntu kernel.
** Project changed: snapd => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: New => Confirmed
** This bug has been marked a
This entry:
* swap storms kills interactive use (LP: #1861359)
- SAUCE: mm/page_alloc.c: disable memory reclaim watermark boosting by
default
closed this bug, but per latest comments, that isn't sufficient to
address the issue. Putting back to Confirmed.
** Changed in: linux (Ubuntu
Users seeing this issue should modify IPT_MODULES in /etc/defaults/ufw
to be empty. Ubuntu 20.04 will do this be default and future releases of
ufw will introduce rule syntax for working with helper rules.
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The linux task can be marked as Fix Released since
net/netfilter/nf_conntrack_helper has defaulted to 0 since 4.7.
** Changed in: ufw (Ubuntu)
Status: Triaged => In Progress
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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p already has read/write access to these directories when
/system-data is not prepended. I've taken a todo to send up a PR for
this.
** Also affects: snapd
Importance: Undecided
Status: New
** Changed in: snapd
Status: New => Triaged
** Changed in: snapd
Assignee: (unassigned) =>
S %CPU %MEM TIME+ COMMAND
200286 jamie 20 0 9007480 4.2g 159064 S 0.0 27.3 6:36.74 Web
Content
410962 libvirt+ 20 0 3428276 572112956 S 0.0 3.5 0:16.71
qemu-system-+
199841 jamie 20 0 3704896 502596 138168 S 2.7 3.1 34:35.49
firefox-bin
I forgot to mention, I also have nvme.
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Title:
swap storms kills interactive use
Status in linux package in Ubuntu:
Confirmed
FYI, I decided to do this:
$ sudo swapoff -a && sudo swapon -a
$ free -h
totalusedfree shared buff/cache available
Mem: 15Gi 5.9Gi 4.8Gi 2.0Gi 4.8Gi 7.2Gi
Swap: 15Gi 348Mi15Gi
Even though I am no
Seth and I talked about this and I marked this as affects me. If it
helps, I saw this on eoan and focal doesn't make a difference (which
might suggest the change is between disco and eoan).
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Okay I've been silly. Just realised I hadn't installed the _all.deb
first!
I did notice during reboot that I got this error Couldn’t get size:
0x800e, however it disappears and I can carry on as normal.
Not sure if you saw this too @Loik?
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Hey @Loik thanks for the heads up.
I've been able to install modules and image but for some reason the
headers file won't install. When running via the OS Installer it never
gives me the option to remove the file which suggests it hasn't
installed.
I then tried to install via terminal...
```
Happening to me too. Full details available on this issue:
https://github.com/brave/brave-browser/issues/7439
** Bug watch added: github.com/brave/brave-browser/issues #7439
https://github.com/brave/brave-browser/issues/7439
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This was fixed upstream in 61c27d8808f0589beb6a319cc04073e8bb32d860
** Changed in: apparmor
Status: Triaged => Fix Released
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*** This bug is a duplicate of bug 1848567 ***
https://bugs.launchpad.net/bugs/1848567
I'm going to mark the linux task as Invalid and then mark as a dupe of
bug 1848567
** Changed in: linux (Ubuntu)
Status: Confirmed => Won't Fix
** Changed in: apparmor (Ubuntu)
Status: New
Hi Timo, thanks for the response.
I'm sorry but I'm not sure how to change the kernel - quite new to Ubuntu etc.
Do you have a guide I could maybe take a look at to reference?
Thanks!
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/tmp/test.lock -c true
/tmp/test.lock rw,
}
$ sudo apparmor_parser -r ./apparmor.profile
$ aa-exec -p test -- flock -w 1 /tmp/test.lock -c true && echo yes
yes
$ ls -l /tmp/test.lock
-rw-rw-r-- 1 jamie jamie 0 Jan 20 15:57 /tmp/test.lock
The flock command uses flock
** Changed in: ufw (Ubuntu)
Status: New => Triaged
** Changed in: ufw (Ubuntu)
Importance: Undecided => Medium
** Changed in: ufw (Ubuntu)
Assignee: (unassigned) => Jamie Strandboge (jdstrand)
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FYI, please note that seccomp 2.4.1 was pushed to bionic in
https://usn.ubuntu.com/4001-1/ on 2019/05/30. It shouldn't affect this
bug report AFAICT because while the 2.4.1 Ubuntu packaging drops these
patches, the upstream commits for lp-1815415-arch-update-syscalls-for-
Linux-4.9.patch and
Uploaded 2.13.2-9ubuntu6 with the SFS_MOUNTPOINT change.
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Title:
apparmor does not start in Disco LXD containers
Status in
Since the apparmor SFS_MOUNTPOINT change is small, I'll prepare an
upload for that immediately. We may need another parser update for the
other issue.
** Changed in: apparmor (Ubuntu)
Status: Triaged => In Progress
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The following will reproduce the issue in a disco VM with disco LXD
container:
Initial setup:
1. have an up to date disco vm
$ cat /proc/version_signature
Ubuntu 5.0.0-11.12-generic 5.0.6
2. sudo snap install lxd
3. sudo adduser `id -un` lxd
4. newgrp lxd
5. sudo lxd init # use defaults
6. .
FYI, I saw this when looking at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1823862. In the
other bug, the reporter say a different error message, but I saw
'iptables v1.6.1: can't initialize iptables table `filter': Memory
allocation problem'. If those in this bug do not have
To be clear, when I installed linux-modules-extra-5.0.0-8-generic, I no
longer saw this error message. Of course, it might not strictly be a
duplicate, but I'll let the kernel team figure that out.
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I can confirm that without linux-modules-extra-*, iptables is broken.
Reduced test case:
$ sudo iptables -L -n
iptables: No chain/target/match by that name.
Full test case:
$ sudo /usr/share/ufw/check-requirements -f
...
ERROR: could not create 'ufw-check-requirements'. Aborting
FAIL: check your
Marking the ufw task as Invalid. The kernel doesn't have what is needed
to run iptables.
** Changed in: ufw (Ubuntu)
Status: New => Invalid
** Changed in: ufw (Ubuntu)
Assignee: Jamie Strandboge (jdstrand) => (unassigned)
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Are there additional steps that need to occur?
** Changed in: iptables (Ubuntu)
Status: New => Incomplete
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Title:
iptables
FYI, I cannot reproduce this with even less memory:
$ iptables --version
iptables v1.6.1
$ free
totalusedfree shared buff/cache available
Mem: 265712 114824 667441024 84144 36024
Swap: 0 0
For me editing the display-manager.service made no difference.
[Service]
# temporary safety check until all DMs are converted to correct
# display-manager.service symlink handling
#ExecStartPre=/bin/sh -c '[ "$(basename $(cat /etc/X11/default-display-manager
2>/dev/null))" = "lightdm" ]'
** Changed in: kernel-sru-workflow/security-signoff
Assignee: Canonical Security Team (canonical-security) => Ubuntu Security
Team (ubuntu-security)
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** Changed in: kernel-sru-workflow/security-signoff
Assignee: Canonical Security Team (canonical-security) => Ubuntu Security
Team (ubuntu-security)
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I too am seeing this after the most recent upgrade:
$ grep -cF 'sit: non-ECT' /var/log/syslog
2917
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Title:
4.4.0-127.153 generates
*** This bug is a duplicate of bug 1579190 ***
https://bugs.launchpad.net/bugs/1579190
I've had this situation using a bluetooth keyboard with 16.04 Ubuntu and
updated the kernal to 4.15 and was still getting the issue.
I am not sure why but installing:
sudo apt-get install ibus-gtk
** Attachment removed: "artful patches"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1765040/+attachment/5120956/+files/cpuid.tar.gz
** Attachment added: "artful patches"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1765040/+attachment/5124602/+files/cpuid.tar.gz
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No applicable logs for this.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
Runtime microcode
Public bug reported:
Unlike upstream, the artful kernel uses the scattered CPU bits
arch/x86/kernel/cpu/scattered.c to get the IBRS/IBPB CPUID bits in the
KVM CPUID ioctls(). However, these are not updated when loading new
microcode at run-time. This means that if you boot a system with older
Public bug reported:
Dell XPS 13 9350 on AC power left running overnight, suspends after a
given timeout. When coming back the next morning sometimes the laptop
resumes to an aubergine desktop (just the screen, no GDM) and cursor and
sits there forever. Sometimes it resumes to a black screen and
This is fixed in xenial 2.3.1-2.1ubuntu2~16.04.1
** Changed in: libseccomp (Ubuntu Xenial)
Status: In Progress => Fix Released
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FYI, the following kernels are also affected (all 4.13 based):
* linux-azure
* linux-hwe
* linux-hwe-edge
* linux-oem
* linux-raspi2
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Since this is going to be fixed in 'linux' and 'linux-gcp', adding tasks
for those.
** Changed in: apparmor (Ubuntu Artful)
Status: Won't Fix => Fix Committed
** Changed in: linux (Ubuntu Artful)
Status: Fix Committed => Confirmed
** Also affects: linux-gcp (Ubuntu)
Importance:
Add a snapd task so that when the https://launchpad.net/ubuntu/+source
/linux-gcp is Fix Released, snapd can re-enable the tests/main/lxd test
on GCE.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Artful)
Status: New => Fix
I had the same issues this bug describes: Freeze on low load; Runs fine
on heavy load. I even ran stress -c 16 when I had to keep the system up
for long periods of low load.
I tried pretty much everything in this list including compiling a
mainline kernel with CONFIG_RCU_NOCB_CPU enabled and the
Verified by our QA. Changing tag to "verification-done-xenial".
====
Thanks, Jamie, below steps were helpful.
This bug did not repro with [Ubuntu 16.04] + kernel 4.4.0-116-generic : 384.111
(R384_00)
I've verified output through all channels (
I've let our QA (India-based) know about this. I'll update as soon as
they've had a chance to verify.
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https://bugs.launchpad.net/bugs/1744117
Title:
ALSA backport
** Changed in: qtbase-opensource-src (Ubuntu)
Status: New => Won't Fix
** Changed in: qtmultimedia-opensource-src (Ubuntu)
Status: New => Won't Fix
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Hi Joseph,
I know I'm new to this thread (took a while to find a match to the
symptom), but I've been experiencing this issue as well (first on
Manjaro, now on Xubuntu, both give problems with 4.13 but are fine in
4.9/4.10). Just installed your test kernel (lp1742630) to my Xubu16.04
Since snapd is using this bug for its SRU blocker and we have bug
#1733700 that is the same issue, I'm going to use this bug as the snapd
one and for the apparmor one.
** Summary changed:
- utils don't understand «include "/where/ever"» (was: Potential regression
found with apparmor test on
@mvo - this is probably obvious, but if you used '#include' instead of
'include', it would side-step the issue.
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https://bugs.launchpad.net/bugs/1734038
Title:
utils don't
Marking as "Won't Fix" for the bluez deb -- the postinst is doing the
right thing, there just happens to be something installed outside of
dpkg/apt that is getting in the way.
** Changed in: bluez (Ubuntu)
Status: Confirmed => Won't Fix
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Looking at the logs I see:
Sep 13 07:51:08 agda-HP-Pavilion-dv6500-Notebook-PC audit[1221]: AVC
apparmor="STATUS" operation="profile_replace" profile="unconfined"
name="snap.bluez.bluetoothctl" pid=1221 comm="apparmor_parser"
This indicates you have the bluez snap installed. This bug is about
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