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int_ua's Avatar
int_ua is offline int_ua
2012-08-08 , 21:47
Posts: 676 | Thanked: 1,067 times | Joined on Jul 2010 @ Kyiv, Ukraine
#1
Looks like I've found the reason of my N900's reboots every 6 days of uptime: dbus-daemon takes more and more RAM.
It's only 3Mb on the start but doubles every 24 hours.
I'm going to file a bug report, you can help by checking yours with
Code:
uptime
sudo pmap $(pidof dbus-daemon) | grep total
How can I restart dbus-daemon? Even when I tried it from user 30000 it just reboots the phone.

Update: it looks like it was recaller's fault.

Update: no, it was batterypatch-non-kp
Last edited by int_ua; 2012-10-03 at 19:23.
 
joerg_rw's Avatar
joerg_rw is offline joerg_rw
2012-08-08 , 22:50
Posts: 2,222 | Thanked: 12,651 times | Joined on Mar 2010 @ SOL 3
#2
since dbus is of paramount importance to whole system, I think you hardly can restart it without system reboot


btw you must have something special there, I had uptimes of >150 days.

/j
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int_ua is offline int_ua
2012-08-09 , 03:56
Posts: 676 | Thanked: 1,067 times | Joined on Jul 2010 @ Kyiv, Ukraine
#3
Code:
$ sudo /etc/init.d/dbus restart
sort: unrecognized option `--reverse'
BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso30+0m5) multi-call binary
Looks like it was never tested.
Update: I've replaced the sort with a GNU sort and the script worked but it just spawns third dbus-daemon without closing the first one.
Last edited by int_ua; 2012-08-09 at 06:31.
 

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conred is offline conred
2012-08-09 , 12:23
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#4
I have no experience handling dbus, but this may help to debug it.

No leak in my case:
Code:
date >> dbus.log; ps avx | grep dbus-daemon >> dbus.log
Code:
Thu Aug  9 05:11:07 CEST 2012
 1198 messageb  3380 S <  /usr/bin/dbus-daemon --system --nofork 
 1559 user      3008 S <  /usr/bin/dbus-daemon --fork --print-pid 5 --print-add
 2205 user      2092 S    grep dbus-daemon 
Thu Aug  9 05:15:17 CEST 2012
 1198 messageb  3380 S <  /usr/bin/dbus-daemon --system --nofork 
 1559 user      3008 S <  /usr/bin/dbus-daemon --fork --print-pid 5 --print-add
 2209 user      2092 S    grep dbus-daemon 
Thu Aug  9 11:56:09 CEST 2012
 1198 messageb  3380 S <  /usr/bin/dbus-daemon --system --nofork 
 1559 user      3008 S <  /usr/bin/dbus-daemon --fork --print-pid 5 --print-add
 2213 user      2092 S    grep dbus-daemon 
Thu Aug  9 13:21:36 CEST 2012
 1198 messageb  3380 S <  /usr/bin/dbus-daemon --system --nofork 
 1559 user      3008 S <  /usr/bin/dbus-daemon --fork --print-pid 5 --print-add
 2217 user      2092 S    grep dbus-daemon 
Thu Aug  9 13:53:17 CEST 2012
 1198 messageb  3380 S <  /usr/bin/dbus-daemon --system --nofork 
 1559 user      3008 S <  /usr/bin/dbus-daemon --fork --print-pid 5 --print-add
 2220 user      2092 S    grep dbus-daemon
 

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reinob is offline reinob
2012-08-10 , 09:49
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#5
uptime 18+ days

dbus-daemon (session): 3160K
dbus-daemon (system): 3556K

I wouldn't call that a leak (at least in my case).
 

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int_ua is offline int_ua
2012-08-11 , 04:49
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#6
So I started deleting all suspicious packages one by one and it looks like it was recaller's fault. Memory stays at 3552K for ~10 hours.
 

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int_ua is offline int_ua
2012-10-03 , 19:23
Posts: 676 | Thanked: 1,067 times | Joined on Jul 2010 @ Kyiv, Ukraine
#7
Actually it stopped only after removing batterypatch-non-kp
 

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mr_pingu is offline mr_pingu
2012-10-03 , 19:46
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#8
Another example of how great these "patches" are :P
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reinob is offline reinob
2012-10-04 , 08:10
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#9
Originally Posted by mr_pingu View Post
Another example of how great these "patches" are :P
Indeed. But it seems to be even too much for batterypatch.

Batterypatch uses dbus-scripts, which could (maybe) responsible for the leak.

The scripts run by batterypatch, which are invoked by dbus-scripts, also execute dbus commands (to know whether a call is active or not).

So perhaps this provoke-dbus-event while handle-dbus-event may trigger a bug in dbus itself. (Maybe, this is not really a re-entrancy issue, and in any case one must assume that dbus, however crappy it is, and it is, has to be re-entrant, otherwise it would be just way too crappy).

Is somebody using frequently-run dbus-activated scripts *and* also having this memory leak?

If so, is this using dbus-scripts, dbuscron, or some other means?
 

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