plymouth-upstart-bridge takes 100% CPU after upgrading packages in 14.04 Trusty Tahr

[Corey Hollaway]

With a fresh Xubuntu 14.04 LiveUSB I did (most of this doesn't matter):

sudo apt-get update
sudo apt-get install firefox
sudo stop cups
sudo stop cups-browsed
sudo dpkg --purge hplip printer-driver-postscript-hp printer-driver-gutenprint bluez-cups printer-driver-hpcups cups cups-browsed cups-daemon printer-driver-splix cups-core-drivers
sudo add-apt-repository ppa:ubuntu-wine/ppa
sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get install wine1.7

And now, I get this (with `ps aux`):
http://paste.ubuntu.com/7860430/

Something just recently broke plymouth because earlier today I did the same thing and my CPU didn't max out.

Firefox didn't break things because I had 31.x before and everything was fine.

I look at my CPU graph analyzer GUI on my Xubuntu panel and plymouth-upstart-bridge seems to select 2 random CPU cores (I have 4. An Intel i3) and maxes them out. Every ~10 seconds it changes to two random cores. *shrugs*

Laptop stats:
i15RV-1333BLK
Dell Inspiron 15 3521 (http://www.dell.com/support/home/us/en/19/product-support/servicetag/86290X1/)
i3 (1.9GHz)
6 GB RAM
integrated Intel HD 4000 graphics
bought in 2013

These are the packages that were updated:
http://paste.ubuntu.com/7860451/

[Corey Hollaway (ch-1987-ad)]

Ummmm...........

it seems fixed now.

I tried what I did again and now the CPU isn't shooting up to 100%. Everything looks fine.

Here's my `ps aux` when everything is OK:
http://paste.ubuntu.com/7867932/

I'll re-open this bug if the CPU goes to 100% next time (again).

[Corey Hollaway (ch-1987-ad)]

It happened again. Except this time only one plymouth-upstart-bridge process was hogging CPU. Which means only one core of my processor was being used.

:(

this sucks.