** Changed in: cgmanager (Ubuntu)
Status: Confirmed = Fix Released
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https://bugs.launchpad.net/bugs/1377332
Title:
[TOPBLOCKER] UI randomly freezes
To
** Changed in: cgmanager (Ubuntu)
Status: Confirmed = Fix Released
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Title:
[TOPBLOCKER] UI randomly freezes
To manage notifications
** Changed in: canonical-devices-system-image
Status: Confirmed = Fix Released
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Title:
[TOPBLOCKER] UI randomly
** Changed in: unity8 (Ubuntu)
Status: Opinion = Invalid
** Changed in: unity8 (Ubuntu)
Assignee: Josh Arenson (josharenson) = (unassigned)
** Changed in: unity8 (Ubuntu RTM)
Assignee: Josh Arenson (josharenson) = (unassigned)
** Changed in: unity8 (Ubuntu RTM)
Status:
** Changed in: canonical-devices-system-image
Status: Confirmed = Fix Released
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Title:
[TOPBLOCKER] UI randomly freezes
To manage
** Also affects: cgmanager (Ubuntu RTM)
Importance: Undecided
Status: New
** Changed in: cgmanager (Ubuntu RTM)
Status: New = Fix Released
** Changed in: cgmanager (Ubuntu RTM)
Importance: Undecided = Critical
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** Also affects: cgmanager (Ubuntu RTM)
Importance: Undecided
Status: New
** Changed in: cgmanager (Ubuntu RTM)
Status: New = Fix Released
** Changed in: cgmanager (Ubuntu RTM)
Importance: Undecided = Critical
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** Also affects: canonical-devices-system-image
Importance: Undecided
Status: New
** Changed in: canonical-devices-system-image
Importance: Undecided = Critical
** Changed in: canonical-devices-system-image
Status: New = Confirmed
** Changed in:
** Also affects: canonical-devices-system-image
Importance: Undecided
Status: New
** Changed in: canonical-devices-system-image
Importance: Undecided = Critical
** Changed in: canonical-devices-system-image
Status: New = Confirmed
** Changed in:
after testing the packages serge offered above from
https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu-
rtm/landing-003 for a day i mustr say that the device feels generally a
lot more stable. except some webapp crashes that i suspect are unrelated
to cgmanager the phone was stable, did
I confirm what Oliver said, the system is much stable with the package
in silo 3 even when it runs out of memory. The QA Team will run Long
Running Test with this package and see if it improves the average time
to failure.
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13:14 ogra_ stgraber, soo ... that gcmanager fix from hallyn looks reallly
good, the phone seems a lot more stable ... we are wondering what the
implications are if we would use the 0.32 cgmmanager in rtm though ... would
there be any drawbacks with the old lxc version we use ?
13:15 sil2100
serge: not really ... we need armhf binaries on the phone (which would
be fine thanks to your debdiff we could build that in a silo, but ...)
the RTM distro is on 0.30 (and i think stuck there since we can not
easily upgrade to latest lxc if i understood stephane correctly) ...
A set of packages with the proposed fix is at:
http://people.canonical.com/~serge/cgmanager-gettasks-race/
Could you please install those and let us know whether they fix the
issue?
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Here are all the logs you requested. The first dbus-send command hangs and the
second works.
Perhaps it is a coincidence but the problem seems to be triggered when the
systems running out of memory, killed webapp-container and tries to restore
gmail webapp (or maybe any other webapp)
In syslog
From stgraber on 1394919
On the next hang, please report the following:
- dbus-send to both bus addresses (confirming the hang)
- ls -lh /proc/$(pidof cgmanager)/fd/
- ls -lh /proc/$(pidof cgproxy)/fd/
- gdb -p $(pidof cgmanager) -ex bt
- gdb -p $(pidof cgproxy) -ex bt
- dmesg
- free
-
from 1394919
I tried with cgmanager 0.32-4ubuntu1 and the problem remains.
The following command hangs:
dbus-send --print-reply --address=unix:path=/sys/fs/cgroup/cgmanager/sock
--type=method_call /org/linuxcontainers/cgmanager
org.linuxcontainers.cgmanager0_0.Ping int32:1
The following
Just had a chat with Serge and we've got a theory.
cgmanager sends tasks to cgproxy using ucreds. ucreds contain a pid, uid
and gid, all of which must be valid. If however the pid gets killed and
dies between the time the ucred is generated and the time it's sent over
the socket, it'll be invalid
I tried to reproduce this with a program doing an endless loop of
1000 forks which each immediately exit, while doing an endless loop
of cgm gettasks, all inside a container. I failed to get any cgproxy
crashes or hangs however.
Will keep trying tomorrow.
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** Tags added: lt-category-visible
** Tags added: lt-blocker
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Title:
[TOPBLOCKER] UI randomly freezes
To manage notifications about this bug
21:46 jibel stgraber, the problem is still there with cgmanager 0.32-4ubuntu1
21:47 stgraber jibel: now that's something I wasn't hoping to hear :)
21:47 stgraber jibel: so I'm guessing the same dbus-send test hangs against
cgmanager/sock and not against cgmanager.lower/sock, right?
21:47
@Max,
I don't see cgmanager specified in the gdb log.
ICould you still try comment #38?
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Title:
[TOPBLOCKER] UI randomly freezes
To manage
This bug was fixed in the package ubuntu-app-launch -
0.4+15.04.20141118-0ubuntu1
---
ubuntu-app-launch (0.4+15.04.20141118-0ubuntu1) vivid; urgency=low
[ Ted Gould ]
* Attenting to connect to cgmanager for 1 second and then failing and
reporting a recoverable error. (LP:
This bug was fixed in the package ubuntu-app-launch - 0.4+15.04.20141118
~rtm-0ubuntu1
---
ubuntu-app-launch (0.4+15.04.20141118~rtm-0ubuntu1) 14.09; urgency=low
[ Ted Gould ]
* Attenting to connect to cgmanager for 1 second and then failing and
reporting a recoverable error.
** Branch linked: lp:ubuntu/vivid-proposed/ubuntu-app-launch
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Title:
[TOPBLOCKER] UI randomly freezes
To manage notifications about this bug go
This bug was fixed in the package ubuntu-app-launch -
0.4+15.04.20141118-0ubuntu1
---
ubuntu-app-launch (0.4+15.04.20141118-0ubuntu1) vivid; urgency=low
[ Ted Gould ]
* Attenting to connect to cgmanager for 1 second and then failing and
reporting a recoverable error. (LP:
This bug was fixed in the package ubuntu-app-launch - 0.4+15.04.20141118
~rtm-0ubuntu1
---
ubuntu-app-launch (0.4+15.04.20141118~rtm-0ubuntu1) 14.09; urgency=low
[ Ted Gould ]
* Attenting to connect to cgmanager for 1 second and then failing and
reporting a recoverable error.
Here's a stacktrace from a mako.
** Attachment added: gdb.txt
https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1377332/+attachment/4263969/+files/gdb.txt
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The mako stracktrace is from build 25 devel-proposed build 25.
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Title:
[TOPBLOCKER] UI randomly freezes
To manage notifications about this bug
marking unity8 as opinion for the moment, since there's a targeted fix
in app-launch
** Changed in: unity8 (Ubuntu RTM)
Status: In Progress = Opinion
** Changed in: unity8 (Ubuntu)
Status: In Progress = Opinion
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marking unity8 as opinion for the moment, since there's a targeted fix
in app-launch
** Changed in: unity8 (Ubuntu RTM)
Status: In Progress = Opinion
** Changed in: unity8 (Ubuntu)
Status: In Progress = Opinion
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** Changed in: unity8 (Ubuntu)
Importance: High = Critical
** Changed in: ubuntu-app-launch (Ubuntu)
Importance: High = Critical
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Title:
(Marked as affecting cgmanager since cgmanager seems to be dying, but
need more info to debug)
** Also affects: cgmanager (Ubuntu)
Importance: Undecided
Status: New
** Changed in: cgmanager (Ubuntu)
Status: New = Confirmed
** Changed in: cgmanager (Ubuntu)
Importance:
Hi,
the no such process message at sendmsg in cgmanager.log suggests that
cgmanager has died. Could you edit /etc/default/cgmanager to have the
line
cgmanager_opts=--debug
then restart cgmanager, reproduce this, and upload the whole log?
Is this happening inside a container that has a
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: ubuntu-app-launch (Ubuntu)
Status: New = Confirmed
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** Tags removed: ota-1
** Tags added: touch-2014-11-06
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Title:
[TOPBLOCKER] UI randomly freezes
To manage notifications about this bug go to:
(Marked as affecting cgmanager since cgmanager seems to be dying, but
need more info to debug)
** Also affects: cgmanager (Ubuntu)
Importance: Undecided
Status: New
** Changed in: cgmanager (Ubuntu)
Status: New = Confirmed
** Changed in: cgmanager (Ubuntu)
Importance:
** Changed in: unity8 (Ubuntu RTM)
Status: New = In Progress
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Title:
[TOPBLOCKER] UI randomly freezes
To manage notifications about this
** Branch linked: lp:~ted/ubuntu-app-launch/cgmanager-connection-timeout
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Title:
[TOPBLOCKER] UI randomly freezes
To manage notifications about
** Changed in: ubuntu-app-launch (Ubuntu)
Status: Confirmed = In Progress
** Changed in: ubuntu-app-launch (Ubuntu RTM)
Status: New = In Progress
** Changed in: ubuntu-app-launch (Ubuntu)
Importance: Undecided = High
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