I have got yesterday's upstream kernel up and running, but have had my
ability to test it compromised by not being able to get the wireless
working on it.

My attempts to fix the wireless on the upstream kernel managed to break
my wireless on the current kernel, thus i ended up being tethered to the
internet for most of yesterday doing work that couldn't wait for me to
find a fix to my wireless issues. In all that time i had no problems
with the machine freezing. I'd like to try it for a bit longer however,
so getting the wireless to work would really help that.

I have now fixed the wireless on the current kernel
(http://ubuntuforums.org/showthread.php?t=2140655) and in doing so
wonder if its not some conflict with the proprietary wireless driver
that is causing the freezes.

When i have wireless working in the current kernel, i see the following message 
on the boot screen: 
INFO @wl_cfg80211_attach : Registered CFG80211 phy

When i boot to the upstream kernel, where my wireless isn't working, i
have no such issue. Notably i also have no system freezes. In addition,
after i broke the wireless on the current kernel, i did not see that
message at start-up and, notably also had no freezing on the current
kernel.

Problematically, in all these tests, i think more time on either kernel,
could result in a freeze.

I am not sure if the idea of a link between the wireless error on start-
up and the freezing is specious. The only way for me to really be able
to test the upstream kernel however would be if i could get the wireless
working.

Does anyone have any advice for how i can resolve this.

Wireless card is:
Broadcom Corporation BCM43228 802.11a/b/g/

On the current kernel this works fine when the proprietary Broadcom
802.11 Linux STA wireless driver is enabled via: Software & updates -->
Additional Drivers. Notably, when this is installed the error message
'INFO @wl_cfg80211_attach : Registered CFG80211 phy', shows on startup.

On the upstream kernel enabling the proprietary Broadcom 802.11 Linux
STA wireless driver does not get the wireless working, and there is no
error message on startup.

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https://bugs.launchpad.net/bugs/1174275

Title:
  Random system freeze in 13.04

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