CentOS - Feb 2014 - "BUG: soft lockup - CPU#n stuck for X s! [swapper:0]"

I just updated my quad-processor X64 machine (AMD Phenom(tm) II X4 945
Processor) to the latest CentOS 5 xen kernel (2.6.18-371.4.1.el5xen) and I am
getting occasional "BUG: soft lockup - CPU#n stuck for X s!
[swapper:0]"
messages. I did some net searching, and found some bugzilla reports
(https://bugzilla.redhat.com/show_bug.cgi?id=649519 and
http://bugs.centos.org/view.php?id=4488), but neither are shown as resolved.
The machine *seems* to be running alright (it is not hanging or anything). Is
this something I need to worry about? Should I revert to the older kernel
(2.6.18-371.3.1.el5xen)? This is NOT happening on my single-processor 32-bit
laptop (running 2.6.18-371.4.1.el5).


-- 
Robert Heller             -- 978-544-6933 / heller at deepsoft.com
Deepwoods Software        -- http://www.deepsoft.com/
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Hello!

On 02/06/2014 04:27 PM, Robert Heller wrote:
> I just updated my quad-processor X64 machine (AMD Phenom(tm) II X4 945
> Processor) to the latest CentOS 5 xen kernel (2.6.18-371.4.1.el5xen) and I
am
> getting occasional "BUG: soft lockup - CPU#n stuck for X s!
[swapper:0]"
> messages. I did some net searching, and found some bugzilla reports
> (https://bugzilla.redhat.com/show_bug.cgi?id=649519 and
> http://bugs.centos.org/view.php?id=4488), but neither are shown as
resolved.
> The machine *seems* to be running alright (it is not hanging or anything).
Is
> this something I need to worry about? Should I revert to the older kernel
> (2.6.18-371.3.1.el5xen)? This is NOT happening on my single-processor
32-bit
> laptop (running 2.6.18-371.4.1.el5).
I remember this problem a while ago, in our case it was related to the 
network card driver. But in our case the system actually crashed with 
kernel panic.

What if you try to boot your system with acpi=off?
Cheers, Barbara