Freezing system

[Chris]

On Thu, 2015-01-22 at 01:22 -0500, Scott Blair wrote:
> I am running Ubuntu 14.04. I have all the updates that have been issued.
> Sometimes my system will freeze rendering the keyboard useless. However
> the mouse still works. But clicking on anything doesn't work. But today when
> it froze, while I was watching an imbedded video, I could click on the
> status
> bar and hear that it changed places, even though the status bar icon did not
> move. While the video was frozen, the audio was still working. My CPU
> status,
> net status and clock even stops, I have the clock showing seconds to make
> sure it froze up.
> 
> I write down the times it freezes and look at the syslog file, but to my
> untrained eye, I don't see anything. I have yet to find, in the syslog
> file, the
> time that it froze up. Am I looking in the right place? Should I be
> looking at
> other logs? Any idea on what to look for?
> 
> -- 
> 
> 
> Scott Blair
> 
> Save on backup time BackupDevice=null
> 
> 

Scott, this sounds exactly the same issue I've reported a bug on at
Launchpad - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1402331
and that has also been reported here -
https://bugs.freedesktop.org/show_bug.cgi?id=75394 if you'll notice I've
mentioned that everything on my machine will freeze up except the cursor
can still be moved. One other oddity about this bug is that even though
it appears to be 'frozen' my background operations are still going on.
For instance fetchmail is still polling for mail, procmail is still
processing it. Spamassassin, ClamAV and Freshclam are all still working
as they should. If you'll notice in my sig that I'm running a 3.19*
kernel which I was asked to do from the bug report on Launchpad. I have
experienced two lockups since doing that however neither one have shown
the 'hangcheck....' error in my syslog. I'll be attempting to do as
asked which is to 'bisect' a kernel. 

HTH

Chris


-- 
Chris
KeyID 0xE372A7DA98E6705C
31.11°N 97.89°W (Elev. 1092 ft)
06:19:59 up 19:30, 1 user, load average: 0.25, 0.34, 0.31
Ubuntu 14.04.1 LTS, kernel 3.19.0-031900rc5-generic