On Thu, Feb 9, 2012 at 11:38 AM, Stephan Wiesand
<[log in to unmask]> wrote:
> On Feb 9, 2012, at 18:30 , Orion Poplawski wrote:
>
>> Is anyone else seeing machines lockup with kernel-2.6.32-220?  On one machine (Dell PowerEdge SC1435 Dual Opteron 2384) we've seen it lockup pretty consistently.  Moving back to 2.6.32-131.21.1.el6.x86_64 appears to have resolved it.
>
> No hangs observed with the SL6.2 kernels. We never deployed -220 though, only -220.2.1 and -220.4.1. And we don't have any SL6 systems running on Opterons. But a wide range of systems, from Pentium D desktops to dual Westmere compute nodes.
>
> --
> Stephan Wiesand
> DESY -DV-
> Platanenenallee 6
> 15738 Zeuthen, Germany

We use a number of SL 6.1 VM hosts and I had upgraded two of our
non-Production machines to 2.6.32-220.4.1.el6.x86_64 and I noticed
certain applications behaved oddly.  On a windows XP VM, opening
Outlook worked fine but selecting the Calendar would cause it to
freeze.. every time.  Excel would freeze.  No error messages but would
have to kill them with Task Manager.  Reverting back to
2.6.32-220.2.1.el6.x86_64 made no difference but using
2.6.32-131.21.1.el6.x86_64 caused the problems to go away.  This was
observed on two different Linux hosts with two different instances of
windows XP.

Have not noticed the Linux boxes themselves crashing with
2.6.32-220.4.1.el6.x86_64 but I have not upgraded any of our more
heavily loaded Production machines to 2.6.32-220.4.1.el6.x86_64
either.