This bug was fixed in the package lightdm - 1.2.3-0ubuntu2.7
---
lightdm (1.2.3-0ubuntu2.7) precise; urgency=medium
* debian/patches/15_gsources.patch:
- Correctly remove GSources on finalize (LP: #1431654)
lightdm (1.2.3-0ubuntu2.6) precise; urgency=medium
* debian/patches/
I can confirm this bug
Solution with package version 1.2.3-0ubuntu2.7 works.
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Title:
lightdm (1.2.3-0ubuntu2.6) 100%/
Confirmation for the 32-bit version as well: 1.2.3-0ubuntu2.7 fixed it.
Thanks!
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Title:
lightdm (1.2.3-0ubuntu2.6) 10
Confirmation as well: Fix in 1.2.3-0ubuntu2.7 works, no longer high CPU
usage.
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Title:
lightdm (1.2.3-0ubuntu2.6) 100
I can confirm as well that lightdm v1.2.3-0ubuntu2.7 has indeed fixed
this issue for me. Thank you for the quick turnaround!
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** Tags removed: verification-needed
** Tags added: verification-done
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Title:
lightdm (1.2.3-0ubuntu2.6) 100%/high cp
The bug fixed for me on Linux paz 3.2.0-79-generic-pae #115-Ubuntu SMP Thu Mar
12 14:33:25 UTC 2015 i686 i686 i386 GNU/Linux
Thank you very much!
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this new package lightdm/1.2.3-0ubuntu2.7
is ok for me. thank
Le 19/03/2015 21:01, Brian Murray a écrit :
> Hello timothymowens, or anyone else affected,
>
> Accepted lightdm into precise-proposed. The package will build now and
> be available at
> https://launchpad.net/ubuntu/+source/lightdm/1
** Branch linked: lp:ubuntu/precise-proposed/lightdm
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Title:
lightdm (1.2.3-0ubuntu2.6) 100%/high cpu usage
Status i
Hello timothymowens, or anyone else affected,
Accepted lightdm into precise-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/lightdm/1.2.3-0ubuntu2.7 in a few
hours, and then in the -proposed repository.
Please help us by testing this new package. See
Thank's to @robert-ancell and @timothyowens.
Noob question : when will we see the new patch version in update manager ?
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It looks like the changes in 1.2.3-0ubuntu2.6 may have changed the
timing slightly and exposed an existing bug (possibly bug 836616).
@timothyowens tested a fix from lp:lightdm/1.2 so I've released
1.2.3-0ubuntu2.7 with that.
** Changed in: lightdm (Ubuntu)
Status: Confirmed => Fix Committe
Looks like that did it:
root 18958 0.0 0.0 270668 3496 ?Ssl 23:26 0:00 lightdm
root 18964 11.0 1.0 246424 133256 tty7Ss+ 23:26 0:08 /usr/bin/X :0
-auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
Good work!
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** Tags added: patch
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Title:
lightdm (1.2.3-0ubuntu2.6) 100%/high cpu usage
Status in lightdm package in Ubuntu:
C
Third times a charm :)
** Patch added: "09_close_pipes.patch"
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1431654/+attachment/4346681/+files/09_close_pipes.patch
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Unfortunately, the 2nd patch still produces the high cpu usage on one
core:
root 2054 93.8 0.0 270668 3488 ?Rsl 22:35 1:40 lightdm
root 2091 10.4 1.3 283756 170820 tty7Ss+ 22:35 0:11 /usr/bin/X :0
-auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
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First patch didn't fix the issue:
root 11395 93.0 0.0 270668 3488 ?Rsl 22:26 1:00 lightdm
root 11401 12.3 1.2 263008 149876 tty7Ss+ 22:26 0:08 /usr/bin/X :0
-auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
I will try the 2nd one now.
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And it that doesn't work here is another updated patch.
** Patch added: "09_close_pipes.patch"
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1431654/+attachment/4346676/+files/09_close_pipes.patch
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Could you try building with an updated version of the patch I've
attached? It's a bit of a stab in the dark but I've fixed a potential
case where stdout might get accidentally closed.
** Patch added: "09_close_pipes.patch"
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1431654/+attachm
@timothyowens - great work! Thanks for pinpointing the patch.
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Title:
lightdm (1.2.3-0ubuntu2.6) 100%/high cpu usage
To add to comment #17, just now I replaced my empty 09_close_pipes.patch
file with the actual patch, then rebuilt, installed and restarted the
lightdm process. Upon logging in, it's back to using 100% of a cpu core
again. So when the 09 patch is removed, no high cpu usage. When the
patch is put
I may not be doing this correctly, but I ran the following to attempt to
debug the running lightdm process using the package from the precise
proposed ppa again. The command I ran is:
sudo gdb lightdm 24513
Of course, 24513 was the running lightdm process. Interesting thing
here is, once gd
Hi Robert,
While I am a developer, I don't have much experience developing in Linux
or using Bazaar (bzr). With that being said, I wasn't exactly sure how
to disable a patch per say, so what I did was backed up
09_close_pipes.patch by moving it to my desktop, then issuing "touch
09_close_pipes.pa
I'm still not able to reproduce this problem locally.
There are two patches that may be causing this problem:
09_close_pipes.patch and 11_quit_timeout.patch (the others seem unlikely
to have caused a problem like this).
What would be very useful is if someone who is reproducing the problem can:
-
** Tags added: regression-proposed
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Title:
lightdm (1.2.3-0ubuntu2.6) 100%/high cpu usage
Status in lightdm package
Also, an addendum to the previous instructions, the Ubuntu repo that has
version 1.2.3-0ubuntu2.5 of lightdm is the precise-updates repo. To add
that repository, do the following:
>From terminal:
sudo gedit /etc/apt/sources.list
Add the following lines to the end of your file:
## U
FYI, in case there are some lesser experienced users that have this
issue and are looking for a temporary solution for the time being, below
are the instructions to revert to the previous release of lightdm until
this gets resolved.
You can do this with the following command in a terminal ():
Same here, 32_bit:
3.2.0-79-generic #115-Ubuntu SMP Thu Mar 12 14:21:14 UTC 2015 i686 i686 i386
GNU/Linux
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Title:
li
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: lightdm (Ubuntu)
Status: New => Confirmed
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Same issues on Dell XPS developer edition:
PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND
1562 root 20 0 264m 3488 2836 R 100
Same bug here
Ubuntu 12.04.5 LTS
3.2.0-79-generic #115-Ubuntu SMP Thu Mar 12 14:18:19 UTC 2015 x86_64 x86_64
x86_64 GNU/Linux
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Fully confirm bug.
Ubuntu 12.04.5 LTS
3.2.0-79-generic-pae #115-Ubuntu SMP Thu Mar 12 14:33:25 UTC 2015 i686 i686
i386 GNU/Linux
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If it helps, here's the x-0-greeter.log file while running lightdm
v1.2.3-0ubuntu2.5 (when the 100% usage doesn't occur).
** Attachment added: "x-0-greeter1.log"
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1431654/+attachment/4343757/+files/x-0-greeter1.log
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Here's the x-0-greeter.log file generated from lightdm
v1.2.3-0ubuntu2.6.
** Attachment added: "x-0-greeter.log"
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1431654/+attachment/4343749/+files/x-0-greeter.log
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Could you also get /var/log/lightdm/x-0-greeter.log?
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Title:
lightdm (1.2.3-0ubuntu2.6) 100%/high cpu usage
Status i
Process 28882 is the X server that has been started for the greeter.
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Title:
lightdm (1.2.3-0ubuntu2.6) 100%/high cpu
I apologize, the version of the kernel that was running when log file
was generated was 3.2.0-79-generic (not 3.2.0-19-generic). Sorry for
the typo.
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Here is the lightdm log file pulled from /var/log/lightdm/lightdm.log.
At 98.76s, I logged out of my session, but didn't get a log-in screen
again (black screen on both monitors).
At this point I killed the process (28882) so that I could downgrade
lightdm again (from ctrl+alt+F1) and log back in.
Do you have /var/log/lightdm/lightdm.log after this occurs? Thanks.
** Changed in: lightdm (Ubuntu)
Importance: Undecided => Critical
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