Re: elilo option to disable perfmon

From: Alex Williamson <>
Date: 2003-07-22 00:27:52
"Zhu, Yi" wrote:
> Hi,
> Is there any option to disable perfmon from elilo? I ask this question because when I
> boot my tiger4 at loading ramdisk, it begins to infinite loop with message,
> perfmon: Spurious PMU overflow interrupt on CPU1: pmc0=0x0
> owner=0000000000000000
> perfmon: Spurious PMU overflow interrupt on CPU2: pmc0=0x0
> owner=0000000000000000

   I remember seeing this kind of error when playing with using
PAL_HALT_LIGHT in the cpu_idle loop.  Newer PAL solved the
problem.  If you have CONFIG_IA64_PAL_IDLE turned on in your
config file, you either need to upgrade to new firmware (not
sure what rev to recommend on a tiger box) or disable the config
option and rebuild a kernel.  Try for PAL 7.40 or better.


Alex Williamson                             HP Linux & Open Source Lab
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Received on Mon Jul 21 10:28:23 2003

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