Hi All,

I am currently running Ubuntu 12.04.3 LTS version updated some 100 days ago. While I am trying to upgrade Ubuntu, I am getting error as mentioned above.
Please tell any web-blog where i can post image of the same.


There is a similar thread already running but that is for linux mint 12
http://www.linuxquestions.org/questi...pt-4175441148/

I have done some online searches which state that it is a bug reported at url :-http://https://bugs.launchpad.net/ub...x/+bug/1212856

The bug is not assigned to anyone although it is given a high priority.

While I am having a problem with the Broadcomm driver update is necessary for removing such errors.

While I am trying to upgrade the OS (Ubuntu 12.04.3) this error (of Kernel panic) prevents a successful download.

Thanking you,
Please tell

"Fatal exception in interrupt" immediately suggests to me that there's a problem related to a device-driver, simply because most (interesting ...) things relating to "interrupts" are also related to "devices."

Now, you could spend a lot of time trying to sleuth this problem, whatever it is, but you probably have better things to do with your time. If you performed, as far as you know, an "ordinary" version-upgrade on "ordinary" equipment, and especially if you found a suspicious-looking still-open trouble ticket ... my frank advice to you is, "Pick another bar to have your beer at." Boot the previous version of Linux (it should, of course, still be there ...) and put-off your upgrade plans for a good long while.

If "you didn't do anything interesting," and if along the way "you didn't make any interesting choices (that you therefore could have screwed up ...)" then it's probably not your problem.

Thank you for the reply,

I am having broadcomm BCM 4312 driver on a dell laptop on Ubuntu 12.04.02. My laptop many times freezes just suddenly and I am forced to restart using the power button.


Also I get error messages such as follows regularly upon shutdown of Ubuntu 12.04.2:-

eth0: phy I/O error
eth0: phy I/O error
eth0: phy I/O error
eth0: phy I/O error


repeated 4-5 times. Note here eth0 may indicate some kind of Network id. And the shutdown is hardly clean. I shut it down by pressing the power button even after going through the following:-

power button -> shut down -> shut down

I have already filed a bug report at
https://bugs.launchpad.net/ubuntu/+s...x/+bug/1267321

Indicating Kernel Panic messages and abrupt freeze in machine.

So what you said does make sense.

Now coming your solution. Your solution is to relegate the laptop to some lower version of Ubuntu probably 10.04. Can there be a gurantee that problem will not be there after installing ? I mean that I faced the same problem on that machine of (ubuntu 10.04) although shutting down the laptop was sometimes problematic. Frankly, I never reported the matter (to any forum ) since I thought it was quite trivial.

Will there be any harm ?I mean the computer will be disconnected from the latest softwares etc.?
Thanking you,

Since you have a message which points rather directly to "eth0" as the most likely culprit, and a "physical I/O error," I would suggest looking first at two things:

1. Is the hardware functioning normally? Correctly? Could it be broken?
2. Is your system correctly identifying the device and using the proper driver for it?

Then, consider whether the equipment used to work without incident, and go back to that environment (load an earlier kernel-version) to see if it still does.