F20: message from syslogd and soft lockup/kernel bug

[Gary Artim]

memtest is a util that was, in the past, included on the boot screen.
I think its been dropped but can be yum installed. check for it with

yum search memtest

it will test your memory out for any faulty locations by move data
patters in and out of all mem locations...

another possibility, but a painful one, is your thermal grease has
burned off the cpu. if it does overheating can occur. cracking open
laptops is no fun, but doable, maybe look for a youtube on doing it
for your machine.

On Mon, Oct 13, 2014 at 12:18 PM, Ranjan Maitra
<maitra.mbox.ignored at inbox.com> wrote:
> Hi Gary,
>
> Thanks! I also have updated my BIOS (as mentioned in a subsequent post) but I have continued to have frequent error messages and lockups even with the mainline vanilla kernel. I have filed bug reports on both kernel.org and fedora -- hopefully it will be fixed soon.
>
> Btw, what does running memtest for 24 hours mean? What do I have to do?
>
> Many thanks and best wishes,
> Ranjan
>
>
>
> On Mon, 13 Oct 2014 11:09:54 -0700 Gary Artim <gartim at gmail.com> wrote:
>
>> I've had similar error messages and hang of the system (unresponsive,
>> but powered on). I would check if there is any firmware upgrade you
>> could apply to the motherboard and also run memtest for 24 hours. I
>> recently did flash my motherboard and haven't had a hang since, but
>> its a server/raid and the load can get pretty big, hasn't yet.
>>
>> On Wed, Sep 24, 2014 at 5:17 AM, Ranjan Maitra
>> <maitra.mbox.ignored at inbox.com> wrote:
>> > Hi,
>> >
>> > I have been having this issue sometimes (not always but quite
>> > frequently) upon wakeup from hibernate for the past few days (on a
>> > newly installed notebook) which is a Dell Precision M3800.
>> >
>> > I get the following message on my consoles:
>> >
>> > Message from syslogd at ....
>> > kernel:BUG: soft lockup -  CPU#1  stuck for 22s!
>> >
>> > What is the problem? Is the problem with the laptop or the kernel?
>> >
>> > I am using kernel-3.16.2-201.fc20.x86_64 on Fedora 20.
>> >
>> > The laptop has 12GB memory and 16GB swap.
>> >
>> > Any suggestions?
>> >
>> > Many thanks and best wishes,
>> > Ranjan
>> >
>> >
>> >
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