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

Ondřej Surý ondrej at debian.org
Sun Jul 17 19:44:14 UTC 2011


Hi,

have you tested it yourself or have you just made conclusion on a blog post?

howl:/# dpkg -l psmisc
ii  psmisc                                               22.14-1
                                       utilities that use the proc
file system

howl:/# fuser /bin/bash; echo $?
/bin/bash:            1398m
0
howl:/# fuser -s /bin/bash; echo $?
0
howl:/# fuser /tmp/foobar; echo $?
1
howl:/# fuser -s /tmp/foobar; echo $?
1

It seems to me that the fuser works as it should. If you don't think
so, please provide a clear test case.

Regards,
Ondrej

On Sun, Jul 17, 2011 at 20:20,  <luka at mail.ljudmila.org> wrote:
> 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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>



-- 
Ondřej Surý <ondrej at sury.org>
http://blog.rfc1925.org/





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