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SubjectRe: APIC errors
"Maciej W. Rozycki" escribió:
>
> On Wed, 17 Jan 2001, Dominik Kubla wrote:
>
> > Just switched to 2.4.0-ac9 (+crypto patches) on our Dual-Pentium MMX
> > webserver yesterday. Works fine so far, except i keep seeing those
> > APIC erros (about 14 in 12 hrs) indicating receive, send and CS errors.
> >
> > Should i be concerned?
>
> At this volume I would treat this as a warning but not a critical issue.
> Inter-APIC messages get retransmitted in case of an error, but the
> checksum circuit is not sophisticated -- a double-bit error might pass
> unnoticed leading to a system unstability under certain conditions. At
> such a low volume of errors double-bit ones are not likely to happen.
>
> It's the first report of APIC errors on a P5 system I have seen, so it's
> probably not a result of a bad motherboard design. I'd recommend to check
> if the system doesn't get overheated. You may also be unlucky to have a
> faulty board.
>
> Maciej
>

Hey, it's not the first, some time ago when it began to be reported a
lot of people with various systems asked at the same time about the same
thing :)

I have a dual p200mmx in a Gigabyte 586DX mobo with 96Mb + Voodoo 3
2000pci, Realtek 8139 nic, bt848 tv...

And I usually get a lot of these messages:

[coma@quartz coma]$ cat /proc/interrupts
CPU0 CPU1
0: 801148 819848 IO-APIC-edge timer
1: 7576 7691 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
5: 0 4 IO-APIC-edge soundblaster
8: 1 0 IO-APIC-edge rtc
9: 4358 4347 IO-APIC-edge eth1
12: 124492 126503 IO-APIC-edge PS/2 Mouse
14: 206324 201592 IO-APIC-edge ide0
15: 1593094 1593085 IO-APIC-edge ide1
17: 785989 785945 IO-APIC-level eth0
18: 402 433 IO-APIC-level bttv
NMI: 1620906 1620904
LOC: 1620963 1620962
ERR: 2697
[coma@quartz coma]$ uptime
8:14pm up 4:30, 0 users, load average: 0.19, 0.11, 0.09

but my system works ok, mostly, now I have just upgraded a Realtek 8029
(10Mb) because it gets hung to a Realtek 8139 (100Mb) just to found the
mobo has some kind of busmastering problems, but that's another story.

P.D. And as you suggested it runs very hot, about 50ºC at the cpus when
both are at full use.

--
Jorge Nerin
<comandante@zaralinux.com>
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