elilo option to disable perfmon

elilo option to disable perfmon

[Zhu, Yi]

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\000000000000000
perfmon: Spurious PMU overflow interrupt on CPU2: pmc0=0x0 
owner\000000000000000

I used UL IPF version kernel 2.4.20.

(please cc me when replying the mail)
Thanks,
-- 
------------------------------------------------------------------------------
Opinions expressed are those of the author and do not represent Intel Corp.

Zhu Yi (Chuyee)
Intel China Software Lab (ICSL)
22nd Floor, ShanghaiMart Tower No. 2299 Yan'an Road(West) Shanghai 200336, PRC
Tel: 8621-52574545-1261 Fax: 8621-62366119

GnuPG v1.0.6 (GNU/Linux)
http://cn.geocities.com/chewie_chuyee/gpg.txt
$ gpg --keyserver wwwkeys.pgp.net --recv-keys 71C34820
1024D/71C34820 C939 2B0B FBCE 1D51 109A  55E5 8650 DB90 71C3 4820

Re: elilo option to disable perfmon

[Stephane Eranian]

Hi,

On Mon, Jul 21, 2003 at 02:21:32PM +0800, Zhu, Yi wrote:
> 
> 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,
> 

No there is no such an option. Perfmon is a kernel compile time option.

> perfmon: Spurious PMU overflow interrupt on CPU1: pmc0=0x0 
> owner\000000000000000
> perfmon: Spurious PMU overflow interrupt on CPU2: pmc0=0x0 
> owner\000000000000000
> 

This should not happen at boot time. 

I don't know what is in UL (United Linux?)?

Could you try with a more recent kernel 2.4.21 from Bjorn? 


> I used UL IPF version kernel 2.4.20.
> 
> (please cc me when replying the mail)
> Thanks,
> -- 
> ------------------------------------------------------------------------------
> Opinions expressed are those of the author and do not represent Intel Corp.
> 
> Zhu Yi (Chuyee)
> Intel China Software Lab (ICSL)
> 22nd Floor, ShanghaiMart Tower No. 2299 Yan'an Road(West) Shanghai 200336, PRC
> Tel: 8621-52574545-1261 Fax: 8621-62366119
> 
> GnuPG v1.0.6 (GNU/Linux)
> http://cn.geocities.com/chewie_chuyee/gpg.txt
> $ gpg --keyserver wwwkeys.pgp.net --recv-keys 71C34820
> 1024D/71C34820 C939 2B0B FBCE 1D51 109A  55E5 8650 DB90 71C3 4820
> -
> To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

-- 

-Stephane

Re: elilo option to disable perfmon

[Zhu, Yi]

Hi Stephane,

Thank you for your quick answer!


On Mon, 21 Jul 2003, Stephane Eranian wrote:
> 
> Hi,
> 
> On Mon, Jul 21, 2003 at 02:21:32PM +0800, Zhu, Yi wrote:
> >
> > 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,
> >
> 
> No there is no such an option. Perfmon is a kernel compile time option.
> 
> > perfmon: Spurious PMU overflow interrupt on CPU1: pmc0=0x0
> > owner\000000000000000
> > perfmon: Spurious PMU overflow interrupt on CPU2: pmc0=0x0
> > owner\000000000000000
> >
> 
> This should not happen at boot time.
> 
> I don't know what is in UL (United Linux?)?

Yes, United Linux.

> 
> Could you try with a more recent kernel 2.4.21 from Bjorn?

You mean the patch from
http://www.kernel.org/pub/linux/kernel/ports/ia64/v2.4/ ?

> 
> 
> > I used UL IPF version kernel 2.4.20.
> >
> > (please cc me when replying the mail)
> > Thanks,
> > --
> > ------------------------------------------------------------------------------
> > Opinions expressed are those of the author and do not represent Intel Corp.
> >
> > Zhu Yi (Chuyee)
> > Intel China Software Lab (ICSL)
> > 22nd Floor, ShanghaiMart Tower No. 2299 Yan'an Road(West) Shanghai 200336, PRC
> > Tel: 8621-52574545-1261 Fax: 8621-62366119
> >
> > GnuPG v1.0.6 (GNU/Linux)
> > http://cn.geocities.com/chewie_chuyee/gpg.txt
> > $ gpg --keyserver wwwkeys.pgp.net --recv-keys 71C34820
> > 1024D/71C34820 C939 2B0B FBCE 1D51 109A  55E5 8650 DB90 71C3 4820
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> --
> 
> -Stephane

Re: elilo option to disable perfmon

[Alex Williamson]

"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\000000000000000
> perfmon: Spurious PMU overflow interrupt on CPU2: pmc0=0x0
> owner\000000000000000

   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.
Thanks,

	Alex

-- 
Alex Williamson                             HP Linux & Open Source Lab

RE: elilo option to disable perfmon

[Luck, Tony]

>    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.

Latest BIOS for Tiger is S870BN4A.86B.0898.P07.0305300848 which
includes PAL 7.59

-Tony

RE: elilo option to disable perfmon

[Zhu, Yi]

Get it! Thanks for all of your help!

-yi

> -----Original Message-----
> From: Luck, Tony 
> Sent: Monday, July 21, 2003 11:37 PM
> To: Alex Williamson; Zhu, Yi
> Cc: linux-ia64@vger.kernel.org
> Subject: RE: elilo option to disable perfmon
> 
> 
> >    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.
> 
> Latest BIOS for Tiger is S870BN4A.86B.0898.P07.0305300848 which
> includes PAL 7.59
> 
> -Tony
>