Re: Unexpected IO-APIC

Lyle Worthington
2004-02-24T18:03:58Z

We rolled back to this kernel after having multiple problems with the
newer 2.6 kernels. This is the only kernel that has worked for us
consistently. It is on 70 or so other servers and runs without any
problems.

I dont see this message on any of our P3 systems - only the systems that
have the P4s. It's refreshing to know that this is not the cause of the
crashes - however the issue still remains that this one system is freezing
and there is no information in any of the log files, nor is there any
output to the screen when the system does freeze.

The times of the crashes arent the same - fsck completes with no problems,
and the only message I see in /var/log/messages is "restart" - never any
errors. Im stuck on what to do next...

Thanks again for your help - and can you please CC me on any reply - i
dont subscribe to linux-smp.

On Tue, 24 Feb 2004 08:38:05 -0800, Randy.Dunlap <rddunlap@osdl.org> wrote:

> On Tue, 24 Feb 2004 09:07:21 -0600 Lyle Worthington wrote:
>
> | I am running RedHat 7.3 on a dual P4 3.2G Xeons with 6G RAM and linux
> | kernel 2.4.18-19.7.xbigmem. This sytem is the only one report this
> | IO-APIC issue and has crashed 4 times in the past 6 days. I have
> searched
> | all over the web trying to find replies to messages people have sent in
> | regarding this issue but have found none so I am emailing hoping you
> can
> | help. Here is the output from dmesg, let me know if you need any more
> | information:
> |
> | IO APIC #2......
> | .... register #00: 02008000
> | ....... : physical APIC id: 02
> | WARNING: unexpected IO-APIC, please mail
> | to linux-smp@vger.kernel.org
> | .... register #01: 00178020
> | ....... : max redirection entries: 0017
> | ....... : PRQ implemented: 1
> | ....... : IO APIC version: 0020
> | .... register #02: 00000000
> | ....... : arbitration: 00
> | .... IRQ redirection table:
>
> Hi,
> The problems that you are seeing aren't likely to have anything to do
> with the unexpected IO-APIC warning message. In fact, that message
> has been removed in the 2.6.x kernels.
>
> Is there a more recent kernel that you can use? Just wondering since
> I don't know about RH updates.
>
> --
> ~Randy

--
</------------------------------|>
/ Lyle Worthington
| Operations Manager
| SKYLIST, Inc.
| lyle@skylist.net
\ (512) 857-7322
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