Bug#788622: systemd-logind regularly eats over 20% of system resources

[Martin-Éric Racine]

2015-06-13 17:28 GMT+03:00 Michael Biebl <biebl at debian.org>:
> Am 13.06.2015 um 16:17 schrieb Martin-Éric Racine:
>> 2015-06-13 16:34 GMT+03:00 Michael Biebl <biebl at debian.org>:
>>> ControL: tags -1 moreinfo unreproducible
>>>
>>> Am 13.06.2015 um 15:30 schrieb Martin-Éric Racine:
>>>> Package: systemd
>>>> Version: 215-17+deb8u1
>>>> Severity: important
>>>>
>>>> systemd-logind regularly eats over 20% of system resources. Whenever that happens, the whole desktop crawls to a stop and GNOME marks all applications as currently unresponsive. Clicking on GNOME's offer to kill each application also fails, since the whole desktop is irresponsive even though the mouse can still be moved around the screen.
>>>>
>>>
>>> Please strace the process and attach the (compressed) output.
>>>
>>> How can we reproduce the problem?
>>
>> Not knowing exactly what processed launched systemd-logind ('ps' shows
>> as launched by root as /usr/lib/systemd/systemd-logind, but without a
>> parent process), I wouldn't know.
>
> Why is it relevant to know, that systemd-logind was started by systemd?

Wait, never mind.  I could attach strace to an existing process.

29336 root      20   0    3816   2804   2500 S 17,8  0,1  13:41.81
systemd-logind

$ sudo strace -t -p 29336 -o systemd-logind.txt

Please find the result attached.

-- Martin-Éric
-------------- next part --------------
A non-text attachment was scrubbed...
Name: systemd-logind.txt.gz
Type: application/x-gzip
Size: 91654 bytes
Desc: not available
URL: <http://alioth-lists.debian.net/pipermail/pkg-systemd-maintainers/attachments/20150613/18e446a9/attachment-0002.bin>