[php-maint] Bug#633100: bad interaction with fuser bug in psmisc 22.14-1

luka at mail.ljudmila.org luka at mail.ljudmila.org
Sun Jul 17 18:20:04 UTC 2011


hello!

this issue is real and pretty dangerous to the stability of the system.

fuser -s in version 22.14-1 has a bug, returning the wrong output value.
look at the blog post of maintainer here:
http://enc.com.au/2011/06/psmisc-22-14-released/

because of this the cron job in php5-common fails to delete old sessions.
after a few hours, this can lead to meltdown of server by running out of
memory and countless defunct fuser processes in process list

these processes aditionally cause extra logging by atop daemon, which can
fill the /tmp partition quickly

best,
LF






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