Bug 150396

Summary: APIC error on CPU0: 60(60) in dmesg output
Product: [Fedora] Fedora Reporter: Andrzej Szymanski <szymans>
Component: kernelAssignee: Dave Jones <davej>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 3CC: pfrields, wtogami
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Target Release: ---   
Hardware: i686   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2005-08-04 00:14:19 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Andrzej Szymanski 2005-03-05 14:49:46 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5)
Gecko/20041111 Firefox/1.0

Description of problem:
After a system is booted the following appears in dmesg output:
APIC error on CPU0: 60(60)
APIC error on CPU0: 60(60)
APIC error on CPU1: 00(60)
APIC error on CPU1: 60(60)
APIC error on CPU0: 60(60)

more errors of that kind appear during heavy I/O.

System: Intel P4 3.2GHz HT, 512MB RAM, Asus P4C800E Deluxe mainboard
with two ATA HDD on Silcon Image Sil680 card and software raid.


Version-Release number of selected component (if applicable):
kernel-smp-2.6.10-1.770_FC3 and earlier

How reproducible:
Always

Steps to Reproduce:
1. Boot system
2. See dmesg output
3. Perform some I/O intensive tasks (find / -name xyz)
4. See dmesg output again
    

Actual Results:  APIC error on CPU0: 60(60)
APIC error on CPU0: 60(60)
APIC error on CPU1: 00(60)
APIC error on CPU1: 60(60)
APIC error on CPU0: 60(60)

Expected Results:  There should be no errors logged.

Additional info:

I discovered the problem after a system hang, then I added the noapic
option to kernel cmdline - the problem was gone. I'm not sure whether
the hang was related to this problem or not. 
The same problem appears on another system with P4 2.8GHz and Asus
P4C800 Deluxe mainboard and Sil0680 card.

Comment 1 Dave Jones 2005-07-15 20:34:58 UTC
An update has been released for Fedora Core 3 (kernel-2.6.12-1.1372_FC3) which
may contain a fix for your problem.   Please update to this new kernel, and
report whether or not it fixes your problem.

If you have updated to Fedora Core 4 since this bug was opened, and the problem
still occurs with the latest updates for that release, please change the version
field of this bug to 'fc4'.

Thank you.

Comment 2 Andrzej Szymanski 2005-07-29 05:12:26 UTC
Yes, kernel-2.6.12-1.1372_FC3smp fixes the problem, and it seems that it was
already fixed in 2.6.11-1.27_FC3smp (I was using this kernel for quite a while -
no problems on both machines reported in my initial post).

Thanks.