Freezing system

Scott Blair scott.blair at
Thu Jan 22 15:06:03 UTC 2015

On 01/22/2015 07:29 AM, Chris wrote:
> 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 -
> and that has also been reported here -
> 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. 
> Chris
This is my output:
Scott at Main:~$ uname -a
Linux Main 3.13.0-44-generic #73-Ubuntu SMP Tue Dec 16 00:22:43 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
Scott at Main:~$
 So upgrading the kernel has no effect. Because your background
 operations are still running, could it be a unity thing and not a
system thing.


Scott Blair

Save on backup time BackupDevice=null

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