Bug#983521: Caja active loop causes high cpu loads randomly
Source: caja
Severity: important
Due to smart working increase, I recently installed mate for our users at job, with
x2go/vnc servers. Soon, I found that caja randomly starts to cause high cpu loads,
and having autodir even installed it also started to log tons of messages
like:
/var/log/syslog.1:Feb 24 18:31:07 milos autodir[3794]: [autohome] warning: no user found with name <username>.bmp
/var/log/syslog.1:Feb 24 18:31:07 milos autodir[3794]: [autohome] alert: module autohome failed on <username>.bmp
/var/log/syslog.1:Feb 24 18:31:07 milos autodir[3794]: [autohome] warning: no user found with name <username>.cur
/var/log/syslog.1:Feb 24 18:31:07 milos autodir[3794]: [autohome] alert: module autohome failed on <username>.cur
/var/log/syslog.1:Feb 24 18:31:07 milos autodir[3794]: [autohome] warning: no user found with name <username>.gif
/var/log/syslog.1:Feb 24 18:31:07 milos autodir[3794]: [autohome] alert: module autohome failed on <username>.gif
/var/log/syslog.1:Feb 24 18:31:07 milos autodir[3794]: [autohome] warning: no user found with name <username>.icns
/var/log/syslog.1:Feb 24 18:31:07 milos autodir[3794]: [autohome] alert: module autohome failed on <username>.icns
/var/log/syslog.1:Feb 24 18:31:07 milos autodir[3794]: [autohome] warning: no user found with name <username>.ico
/var/log/syslog.1:Feb 24 18:31:07 milos autodir[3794]: [autohome] alert: module autohome failed on <username>.ico
[...]
where <username> is a valid user id.
This eventually causes big issues for dozens of GBs of similar messages in a few days. Of course, a workaround
for the syslog stress is rate-limiting the autodir process in rsyslog configuration, but the reason for
the apparent looping of caja is unknown. Even, that starts randomly, probably
triggered by unknown interactions of the user with caja. This is specific of the
mate desktop, never saw with other environments (even if here we are not big
GUI users, and often use lighter WMs).
--
Francesco P. Lovergine
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