PROC Status processor sensor IERR

Bryan bryan.madhatter at
Mon Feb 2 11:00:09 CST 2009

A CPU IERR is usually caused by a bad or failling peripheral card.  The
refers to an interrupt on the bus that was unable to be trapped.  Common
causes are bad HBAs, NICs, the PERC, or daughtercards like the DRAC.
Pulling add-on cards and adding them one by one is probably the best way to
isolate the failure, but it's tedious if the errors occur intermittently.
Tolerance-wise, updating the BIOS and BMC may help as well.

On Mon, Feb 2, 2009 at 8:30 AM, Jason Edgecombe <jason at>wrote:

> Hi Everyone,
> I have a Dell PowerEdge R200 running RHEL5.2 64bit. It reboots weekly
> and shortly after the reboot, the box hangs. The OMSA Embedded System
> Log shows the error "PROC Status processor sensor IERR" shortly after
> the system booted. The error appears several times in the log.
> What does this error mean? What are the possible causes of this error?
> How can I make the error go away?
> FYI, the KVM switch that this system connects to is having video issues.
> Jason
> _______________________________________________
> Linux-PowerEdge mailing list
> Linux-PowerEdge at
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