Bug 156576

Summary:	APIC error on CPU1: 40(40) - ATI Xpress 200 systems in APIC mode
Product:	[openSUSE] SUSE Linux 10.1	Reporter:	Andreas Kleen <ak>
Component:	Kernel	Assignee:	Andreas Kleen <ak>
Status:	RESOLVED FIXED	QA Contact:	E-mail List <qa-bugs>
Severity:	Normal
Priority:	P5 - None	CC:	mtippet, mtippett
Version:	Beta 6
Target Milestone:	---
Hardware:	x86
OS:	Other
Whiteboard:
Found By:	Other	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

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.