Bug 14639

Summary: Xserver 1.4 memory leak related to dbus?
Product: xorg Reporter: Brice Goglin <brice.goglin>
Component: Server/GeneralAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED INVALID QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium CC: brauliobo, daniel, esigra, sergio
Version: 7.3 (2007.09)   
Hardware: Other   
OS: All   
URL: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=467214
Whiteboard:
i915 platform: i915 features:
Bug Depends on:    
Bug Blocks: 12560    
Attachments:
Description Flags
Xorg.0.log crash none

Description Brice Goglin 2008-02-23 13:04:35 UTC 
Ian Beckwith reported the following on the Debian BTS today. He's using Xserver from the 1.4.1 branch (snapshot from January 31th). His report contains interesting things about dbus being involved in some memory leaks. Let's hope it will help. He says:

After running for 52 days (and adding lots of swap), it was taking up 1831m of virtual memory:

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
14893 root       5 -10 1831m  16m 1840 S  0.7  3.6   1690:08 Xorg

I suspect it is something to do with DBus, as running strings(1) on swap produced lots of references to dbus:

$ sudo strings /dev/hda2  /home/sys/swap/* |fgrep org.freedesktop.DBus.Local|wc -l
446272

The strings output contained lots of copies of:

unix:path=/var/run/dbus/system_bus_socket
org_freedesktop_general
org_freedesktop_general
org_freedesktop_general
/org/freedesktop/DBus/Local
org.freedesktop.DBus.Local
Disconnected
Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
ECTED EXTERNAL DBUS_COOKIE_SHA1 ANONYMOUS

DBus appears to be working OK (at least running dbus-monitor then starting pidgin produced a flurry of messages).

In case it is relevant, I'm running ion3 with mostly xterms.

The data above was with a recent but non-current version of X from unstable, I've now been running for 19 days with the version that was in unstable 19 days ago, and X is up to 734Mb of VM usage.
Comment 1 Sérgio M. Basto 2008-03-29 13:26:07 UTC 
I had some strange HAL / DBUS / EVDEV things after some hibernations and resumes of my laptop.
Comment 2 Daniel Stone 2008-05-16 09:53:48 UTC 
*** Bug 13538 has been marked as a duplicate of this bug. ***
Comment 3 Sérgio M. Basto 2008-05-17 14:07:33 UTC 
Created attachment 16607 [details]
Xorg.0.log crash 

Hi, seems to me this could be relevant. 

I had install the same packages of X server 1.4.1 of my laptop, on laptop of my co-worker which is next to me.  And one day after some network problems my laptop and his laptop had a X crash.
I notice that I just had X crash one time a month and in the office.

Last  Wednesday I had a X crash.

May 14 18:49:11 segulix NetworkManager: <info>  Deactivating device eth0.
May 14 18:49:11 segulix NetworkManager: <info>  eth0: canceled DHCP transaction, dhclient pid 30167
May 14 18:49:14 segulix kdm[2130]: X server for display :0 terminated unexpectedly

Seems that network problems and Networkmanager can make a X crash !
Comment 4 Sérgio M. Basto 2008-05-21 08:07:01 UTC 
let's test it:

Fix hal shutdown crash.

Removing the device invalidates its ->next pointer.  Copy it aside before

destroying the device.

(cherry picked from commit f52f6c5c7efc281f9ac204fbaa4f71383df7463d)

http://gitweb.freedesktop.org/?p=xorg/xserver.git;a=commit;h=d5a7badd6a0ea4ecbe76f0205aa53b42f7cd90dc
Comment 5 Peter Hutterer 2008-07-03 00:15:35 UTC 
*** Bug 16574 has been marked as a duplicate of this bug. ***
Comment 6 Daniel Stone 2009-08-31 17:55:07 UTC 
seems to be fine these days ...

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