[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
Hi, I'm wondering if the fix for this is https://github.com/lathiat/avahi/pull/366 and whether or not that fix can be SRU'd into Jammy, which uses avahi 0.8-5ubuntu5.1 ? That patch was already pulled in to 0.8-6 (https://salsa.debian.org/utopia- team/avahi/-/commit/cf97e08b52cd2194c4f7a516c3929ea79d39696a) which is included in Kinetic+. Thanks for considering this :) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in Avahi: New Status in avahi package in Ubuntu: Triaged Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
That's with avahi-daemon 0.7-4ubuntu5 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in Avahi: New Status in avahi package in Ubuntu: Triaged Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
I'm seeing exactly the same issue on Ubuntu 19.04 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in Avahi: New Status in avahi package in Ubuntu: Triaged Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
Also, startlingly, I seem to have thousands of ipv6 addresses assigned to enp0s8: ip addr 3: enp0s8: mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether 08:00:27:47:xx:xx brd ff:ff:ff:ff:ff:ff inet 10.169.110.168/21 brd 10.169.111.255 scope global dynamic noprefixroute enp0s8 valid_lft 6027sec preferred_lft 6027sec inet6 2606:b400:818:61:c70:::/64 scope global temporary dynamic valid_lft 604796sec preferred_lft 86280sec inet6 2606:b400:818:61:eece:::/64 scope global dynamic mngtmpaddr noprefixroute valid_lft 2591939sec preferred_lft 604739sec inet6 2606:b400:818:64:c70:::/64 scope global temporary dynamic valid_lft 604796sec preferred_lft 86280sec inet6 2606:b400:818:64:6745:::/64 scope global dynamic mngtmpaddr noprefixroute valid_lft 2591996sec preferred_lft 604796sec inet6 2606:b400:818:64:d7:::0/64 scope global temporary dynamic valid_lft 604740sec preferred_lft 86224sec # ip addr | grep inet6 | cat -n 6294 inet6 2606:b400:818:64::::/64 scope global temporary deprecated dynamic 6295 inet6 2606:b400:818:61::::/64 scope global temporary deprecated dynamic 6296 inet6 2606:b400:818:61::::/64 scope global temporary deprecated dynamic 6297 inet6 2606:b400:818:64::::/64 scope global temporary deprecated dynamic 6298 inet6 2606:b400:818:64::::/64 scope global temporary deprecated dynamic 6299 inet6 2606:b400:818:61::::c/64 scope global temporary deprecated dynamic 6300 inet6 2606:b400:818:61::::/64 scope global temporary deprecated dynamic 6301 inet6 2606:b400:818:64::::/64 scope global temporary deprecated dynamic 6302 inet6 2606:b400:818:64::::/64 scope global temporary deprecated dynamic 6303 inet6 2606:b400:818:61::::/64 scope global temporary deprecated dynamic 6304 inet6 fe80::4721:::/64 scope link noprefixroute -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in Avahi: New Status in avahi package in Ubuntu: Triaged Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
Hi, I'm hitting this quite consistently on Pop!_OS 19.04 in Virtualbox
(Windows 10 host) on Lenovo T460.
Essentially, the CPU usage goes up to 100% for avahi-daemon, and the
strace shows it stuck in a loop, reading/writing to a named pipe, like
so:
poll([{fd=6, events=POLLIN}, {fd=14, events=POLLIN}, {fd=13, events=POLLIN},
{fd=12, events=POLLIN}, {fd=11, events=POLLIN}, {fd=10, events=POLLIN}, {fd=3,
events=POLLIN}, {fd=8, events=POLLIN}], 8, 0) = 3 ([{fd=14,
revents=POLLIN|POLLERR}, {fd=12, revents=POLLIN}, {fd=10, revents=POLLIN}])
write(7, "W", 1)= 1
write(7, "W", 1)= 1
read(6, "WW", 10) = 2
poll([{fd=6, events=POLLIN}, {fd=14, events=POLLIN}, {fd=13, events=POLLIN},
{fd=12, events=POLLIN}, {fd=11, events=POLLIN}, {fd=10, events=POLLIN}, {fd=3,
events=POLLIN}, {fd=8, events=POLLIN}], 8, 0) = 3 ([{fd=14,
revents=POLLIN|POLLERR}, {fd=12, revents=POLLIN}, {fd=10, revents=POLLIN}])
write(7, "W", 1)= 1
write(7, "W", 1)= 1
write(7, "W", 1)= 1
write(7, "W", 1)= 1
read(6, "", 10) = 4
poll([{fd=6, events=POLLIN}, {fd=14, events=POLLIN}, {fd=13, events=POLLIN},
{fd=12, events=POLLIN}, {fd=11, events=POLLIN}, {fd=10, events=POLLIN}, {fd=3,
events=POLLIN}, {fd=8, events=POLLIN}], 8, 0) = 3 ([{fd=14,
revents=POLLIN|POLLERR}, {fd=12, revents=POLLIN}, {fd=10, revents=POLLIN}])
^Cstrace: Process 782 detached
root@pop-os:/# ls -ltr /proc/782/fd
total 0
lrwx-- 1 root root 64 Sep 25 13:03 14 -> 'socket:[20288]'
lrwx-- 1 root root 64 Sep 25 13:03 13 -> 'socket:[20287]'
lrwx-- 1 root root 64 Sep 25 13:03 12 -> 'socket:[20286]'
lr-x-- 1 root root 64 Sep 25 13:03 11 -> anon_inode:inotify
lrwx-- 1 root root 64 Sep 25 13:03 10 -> 'socket:[20154]'
l-wx-- 1 root root 64 Sep 25 13:03 9 -> 'pipe:[20153]'
lr-x-- 1 root root 64 Sep 25 13:03 8 -> 'pipe:[20153]'
l-wx-- 1 root root 64 Sep 25 13:03 7 -> 'pipe:[20152]'
lr-x-- 1 root root 64 Sep 25 13:03 6 -> 'pipe:[20152]'
lrwx-- 1 root root 64 Sep 25 13:03 5 -> 'socket:[20141]'
lrwx-- 1 root root 64 Sep 25 13:03 4 -> 'socket:[19687]'
lrwx-- 1 root root 64 Sep 25 13:03 3 -> 'socket:[17872]'
lrwx-- 1 root root 64 Sep 25 13:03 2 -> 'socket:[19192]'
lrwx-- 1 root root 64 Sep 25 13:03 1 -> 'socket:[19192]'
lr-x-- 1 root root 64 Sep 25 13:03 0 -> /dev/null
root@pop-os:/#
My avahi config is:
## /etc/avah/avahi-daemon.conf
[server]
use-ipv4=yes
use-ipv6=no
ratelimit-interval-usec=100
ratelimit-burst=1000
[wide-area]
enable-wide-area=yes
[publish]
publish-hinfo=no
publish-workstation=no
[reflector]
[rlimits]
The journal log is overgrown with messages like so: (I've replaced parts of the
ipv6 addresses with )
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:64:485e::: on enp0s8.*.
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:64:28d5::: on enp0s8.*.
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:61:28d5::: on enp0s8.*.
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:64:fca2::: on enp0s8.*.
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:61:fca2::: on enp0s8.*.
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:64:90ab::: on enp0s8.*.
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:61:90ab::: on enp0s8.*.
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:61:5855:::9 on enp0s8.*.
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:64:5855::: on enp0s8.*.
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:64:94aa::: on enp0s8.*.
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:61:94aa::: on enp0s8.*.
Sep 25 10:34:11 pop-os avahi-daemon[782]: Registering new address record for
2606:b400:818:64:e973::: on enp0s8.*.
I've managed to gather the 'perf' data, that was requested by lathiat.
Let me know if this info is of use.
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to avahi in Ubuntu.
https://bugs.launchpad.net/bugs/1799265
Title:
avahi-daemon high cpu, unusable networking
Status in Avahi:
New
Status in avahi package in Ubuntu:
Triaged
Bug description:
Currently running Kubuntu 18.10, Dell XPS 13 9350
Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
Same problem with high CPU, but I'm not able to disable ipv6 (ipv6 network). avahi-daemon is almost always at first place by CPU usage. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in Avahi: New Status in avahi package in Ubuntu: Triaged Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
A similar bug happened here on 2 different Ubuntu installs once they upgraded to Ubuntu 18.10. Another symptom of the bug was periodic addition of IPv6 addresses to the `ip addr` listing. If you wait a while, the list had thousands of IPv6 entries in it! Apparently every time it decided to fetch new IPv6 addresses it also did a RST on all the IPv4 connections, which is why webpages fail to load a lot of the time. Once I completely disabled IPv6 support on my machine via: /etc/sysctl.d/99-sysctl.conf:net.ipv6.conf.all.disable_ipv6 = 1 /etc/sysctl.d/99-sysctl.conf:net.ipv6.conf.default.disable_ipv6 = 1 /etc/sysctl.d/99-sysctl.conf:net.ipv6.conf.lo.disable_ipv6 = 1 The problem went away. So I don't know what the exact problem is -- but this narrows it down. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in Avahi: New Status in avahi package in Ubuntu: Triaged Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
** Changed in: avahi Status: Unknown => New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in Avahi: New Status in avahi package in Ubuntu: Triaged Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
** Changed in: avahi (Ubuntu) Status: Incomplete => Triaged ** Changed in: avahi (Ubuntu) Assignee: (unassigned) => Trent Lloyd (lathiat) ** Bug watch added: github.com/lathiat/avahi/issues #210 https://github.com/lathiat/avahi/issues/210 ** Also affects: avahi via https://github.com/lathiat/avahi/issues/210 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in Avahi: Unknown Status in avahi package in Ubuntu: Triaged Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
Ok, ignore previous post. My laptop was sitting unused and suddenly I hear the fans spin up (which they almost never do). Sure enough, the avahi-daemon was running up a full cpu core. I've attached the logs. Thanks for looking into it. ** Attachment added: "avahi.zip" https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1799265/+attachment/5206777/+files/avahi.zip -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in avahi package in Ubuntu: Incomplete Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
Ok, ignore previous post. My laptop was sitting unused and suddenly I hear the fans spin up (which they almost never do). Sure enough, the avahi-daemon was running up a full cpu core. I've attached the logs. Thanks for looking into it. ** Attachment added: "avahi.zip" https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1799265/+attachment/5206776/+files/avahi.zip -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in avahi package in Ubuntu: Incomplete Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
Ok, ignore previous post. My laptop was sitting unused and suddenly I hear the fans spin up (which they almost never do). Sure enough, the avahi-daemon was running up a full cpu core. I've attached the logs. Thanks for looking into it. ** Attachment added: "avahi.zip" https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1799265/+attachment/5206775/+files/avahi.zip -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in avahi package in Ubuntu: Incomplete Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
Ok, the issue seems gone! I cannot recreate it, and I'm not sure why. First, thank you for the quick reply. When I first read your response, I ran the `echo "deb http://ddebs.ubuntu.com $(lsb_release -cs) main restricted universe multiverse" | sudo tee -a /etc/apt/sources.list.d/ddebs.list` command, and then realized the CPU wasn't being maximally taxed so I didn't continue and decided to try again later. I then ran the disable and stop commands to get rid of the issue temporarily. I later decided to try to recreate the issue, so I ran the corresponding enable and start commands, and the CPU didn't increase. I then restarted my system a couple times, but have yet to see the high CPU and bad networking issues. I can confirm that the avahi-daemon is indeed running. Running `ps aux | grep avahi` yields, avahi 915 0.0 0.0 18920 3868 ?Ss 23:46 0:00 avahi-daemon: running [tomboy.local] avahi 1035 0.0 0.0 18716 348 ?S23:46 0:00 avahi-daemon: chroot helper Since my initial post I have performed a couple normal package updates, so perhaps one of them solved the issue? The Kubuntu 18.10 I am on is a new release, so perhaps something was discovered and fixed. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in avahi package in Ubuntu: Incomplete Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
** Changed in: avahi (Ubuntu) Status: New => Incomplete ** Changed in: avahi (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in avahi package in Ubuntu: Incomplete Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
Hi Matt, Thanks for the report. I'd like to profile avahi using perf to get information on what functions are being executed. Could you run the following commands to generate such data? If you are unsure about any of this feel free to ask. echo "deb http://ddebs.ubuntu.com $(lsb_release -cs) main restricted universe multiverse" | sudo tee -a /etc/apt/sources.list.d/ddebs.list sudo apt update sudo apt install linux-tools-generic ubuntu-dbgsym-keyring linux-cloud-tools-generic sudo apt update sudo apt install avahi-daemon-dbgsym libavahi-common3-dbgsym libavahi-core7-dbgsym libavahi-glib1-dbgsym libc6-dbgsym libcap2-dbgsym libdaemon0-dbgsym libdbus-1-3-dbgsym libecore-avahi1-dbgsym libexpat1-dbgsym libgcrypt20-dbgsym libgpg-error0-dbgsym liblz4-1-dbgsym liblzma5-dbgsym libnss-systemd-dbgsym libsystemd0-dbgsym then to record a profile: sudo perf record -p $(cat /run/avahi-daemon/pid) -g -- sleep 60 This will exit after 60 seconds, then generate perf script output: sudo perf script > avahi-perf.script.txt sudo perf report -n --stdio > avahi-perf.report.txt And then upload the resulting avahi-perf.script.txt and avahi- perf.report.txt for analysis. You'll want to make sure avahi is using 100%+ CPU at the time you do this. Lastly from the same bootup, can you please collect the log info from journalctl: journalctl -u avahi-daemon --no-pager --no-tail > avahi-journal.txt Thanks for reporting the bug! Hopefully we can figure it out. In the mean time if you want to disable avahi you can try this: sudo systemctl disable avahi-daemon.socket avahi-daemon sudo systemctl stop avahi-daemon.socket avahi-daemon (to re-enable change to start and enable) Regards, Trent -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in avahi package in Ubuntu: New Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1799265] Re: avahi-daemon high cpu, unusable networking
Instructions fixed to work with the 80 column limit of comments: echo "deb http://ddebs.ubuntu.com $(lsb_release -cs) main restricted universe multiverse" | \ sudo tee -a /etc/apt/sources.list.d/ddebs.list sudo apt update sudo apt install linux-tools-generic ubuntu-dbgsym-keyring \ linux-cloud-tools-generic sudo apt update sudo apt install avahi-daemon-dbgsym libavahi-common3-dbgsym \ libavahi-core7-dbgsym libavahi-glib1-dbgsym libc6-dbgsym libcap2-dbgsym \ libdaemon0-dbgsym libdbus-1-3-dbgsym libecore-avahi1-dbgsym libexpat1-dbgsym \ libgcrypt20-dbgsym libgpg-error0-dbgsym liblz4-1-dbgsym liblzma5-dbgsym \ libnss-systemd-dbgsym libsystemd0-dbgsym -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1799265 Title: avahi-daemon high cpu, unusable networking Status in avahi package in Ubuntu: New Bug description: Currently running Kubuntu 18.10, Dell XPS 13 9350 Since updating from Kubuntu 18.04 to 18.10, the avahi-daemon has been consistently hampering network performance and using CPU for long periods of time. When booting machine from off state, avahi-daemon uses an entire CPU at max load for approx 10 minutes. During this time, internet connectivity via wifi is essentially unusable. The wifi connection is good, but it seems that http transactions are cutoff mid-way so no webpage is able to load. When waking from sleep, the avahi-daemon causes similar symptoms, but with less than 1 full cpu usage, and with somewhat less degraded network performance, but still quite unusable. I have never had issues with avahi prior to the 18.10 upgrade, so I am fairly confident the issue is rooted in that change. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: avahi-daemon 0.7-4ubuntu2 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE Date: Mon Oct 22 10:00:34 2018 InstallationDate: Installed on 2017-07-24 (455 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 LD_PRELOAD= SHELL=/bin/bash SourcePackage: avahi UpgradeStatus: Upgraded to cosmic on 2018-10-20 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1799265/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
