[Userland-team] [OpenIndiana Distribution - Bug #1987] dbus taking 100% of cpu

illumos project devnull at illumos.org
Mon Apr 30 13:22:26 UTC 2012


Issue #1987 has been updated by Richard PALO.


Andrew Stormont wrote:
> Which version of DBus are you running?

<pre>
$ cat /etc/release 
             OpenIndiana Development oi_151.1.3 X86 (powered by illumos)
        Copyright 2011 Oracle and/or its affiliates. All rights reserved.
                        Use is subject to license terms.
                           Assembled 24 March 2012
$ /usr/lib/dbus-daemon --version
D-Bus Message Bus Daemon 1.2.24
Copyright (C) 2002, 2003 Red Hat, Inc., CodeFactory AB, and others
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE
</pre>
----------------------------------------
Bug #1987: dbus taking 100% of cpu
https://www.illumos.org/issues/1987

Author: Jeffrey Baitis
Status: New
Priority: Normal
Assignee: OI Userland
Category: 
Target version: oi_151_stable
Difficulty: Medium
Tags: dbus


After my 151a machine had about 39 days of uptime with heavy X11 use, top noticed that dbus-daemon was taking 100% of the cpu time in one of my CPU cores. svcadm disable dbus did not seem to kill the rogue dbus-daemon; I had to kill it by pid manually.

I ran the Proc/dapptrace script from the DTrace toolkit. Here's the output that I got:

<pre>
CALL(args)               = return
-> check_babysit_events(0x2CF8, 0x20, 0x1)              
<- check_babysit_events = 177
-> _dbus_poll(0x8047490, 0x2, 0xFFFFFFFF)               
<- _dbus_poll = 47
-> check_babysit_events(0x2CF8, 0x20, 0x1)              
<- check_babysit_events = 177
-> _dbus_poll(0x8047490, 0x2, 0xFFFFFFFF)               
<- _dbus_poll = 47
-> check_babysit_events(0x2CF8, 0x20, 0x1)              
<- check_babysit_events = 177
-> _dbus_poll(0x8047490, 0x2, 0xFFFFFFFF)               
<- _dbus_poll = 47
-> check_babysit_events(0x2CF8, 0x20, 0x1)              
<- check_babysit_events = 177
-> _dbus_poll(0x8047490, 0x2, 0xFFFFFFFF)               
<- _dbus_poll = 47
-> check_babysit_events(0x2CF8, 0x20, 0x1)              
<- check_babysit_events = 177
-> _dbus_poll(0x8047490, 0x2, 0xFFFFFFFF)               
<- _dbus_poll = 47
</pre>
... ad nauseam



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