Just posting information on the fix. This bug affected me as well. However it was not with the POWER_SUPPLY_MODEL_NAME. Every time I would unplug and plugin my laptop I would get 100% CPU usage from upstart- udev-bridge.
The garbage characters are in the value of the model name for this Sanyo battery. 0003760 012 120 117 127 105 122 137 123 125 120 120 114 131 137 115 117 \n P O W E R _ S U P P L Y _ M O 0004000 104 105 114 137 116 101 115 105 075 060 021 060 052 171 206 012 D E L _ N A M E = 0 021 0 * y 206 \n I have applied the fix and restarted upstart-udev-bridge and the issue has not appeard again, even after rapidly unpluging and pluging in the power supply. Attached is just the output for the add event for the power supply. Thanks for the fix. ** Attachment added: "udev_upstart.txt" https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/829980/+attachment/2972362/+files/udev_upstart.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/829980 Title: upstart-udev-bridge eats 100% cpu calling dbus_message_iter_append_basic() To manage notifications about this bug go to: https://bugs.launchpad.net/upstart/+bug/829980/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs