Bug 156576 - APIC error on CPU1: 40(40) - ATI Xpress 200 systems in APIC mode
Summary: APIC error on CPU1: 40(40) - ATI Xpress 200 systems in APIC mode
Status: RESOLVED FIXED
Alias: None
Product: SUSE Linux 10.1
Classification: openSUSE
Component: Kernel (show other bugs)
Version: Beta 6
Hardware: x86 Other
: P5 - None : Normal (vote)
Target Milestone: ---
Assignee: Andreas Kleen
QA Contact: E-mail List
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Depends on:
Blocks:
 
Reported: 2006-03-09 16:28 UTC by Andreas Kleen
Modified: 2006-03-27 18:22 UTC (History)
2 users (show)

See Also:
Found By: Other
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description Andreas Kleen 2006-03-09 16:28:44 UTC 
Maybe every half hour or so

APIC error on CPU1: 40(40)
APIC error on CPU0: 40(40)
APIC error on CPU1: 40(40)
APIC error on CPU0: 40(40)
APIC error on CPU1: 40(40)
APIC error on CPU0: 40(40)
APIC error on CPU1: 40(40)
APIC error on CPU0: 40(40)
APIC error on CPU1: 40(40)
APIC error on CPU0: 40(40)

Should do something about them before customers complain.

Happens on both 32bit and 64bit.

Cause unknown.

40 means "Send illegal vector"
Comment 1 Andreas Kleen 2006-03-23 23:20:12 UTC 
I disabled the message in the suse kernel for now. But I will keep it 
enabled in mainline until someone can explain that they're really harmless.
Comment 2 Len Brown 2006-03-27 08:10:18 UTC 
0x40 is 100 0000, so bit 6 is set, so this is actually
"Received Illegal Vector"

40(40) means that the error didn't clear.
(as apposed to 40(0), which means it did clear)

This checksumming is done in hardware -- nothing
software can do to prevent it.

don't over-clock your motherboard:-)
Comment 3 Andreas Kleen 2006-03-27 18:22:25 UTC 
Thanks Len - but I knew this already. The bug must have slipped into your
list by mistake.