>Number:         5790
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>Category:       i386
>Synopsis:       broken interrupts on smp
>Confidential:   yes
>Severity:       critical
>Priority:       medium
>Responsible:    bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Apr 10 20:00:01 GMT 2008
>Closed-Date:
>Last-Modified:
>Originator:     mickey
>Release:        4.3-current
>Organization:
net
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>Environment:
	System      : OpenBSD 4.3
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>Description:
	due to lapic ack done too late nested interrupts
	are never taken as well as ipis and other lapic
	events. this produces (besides performance problems)
	lockups triggered by the tlb flushing ipis.
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>How-To-Repeat:
	generate interrupts
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>Fix:

Index: apicvec.s
===================================================================
RCS file: /cvs/src/sys/arch/i386/i386/apicvec.s,v
retrieving revision 1.10
diff -u -r1.10 apicvec.s
--- apicvec.s	25 May 2007 15:55:26 -0000	1.10
+++ apicvec.s	8 Feb 2008 15:00:07 -0000
@@ -338,22 +338,22 @@
 #define APIC_STRAY_TEST(name,num)
 #endif /* DEBUG */
 
-APICINTR(ioapic,0, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,1, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,2, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,3, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,4, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,5, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,6, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,7, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,8, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,9, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,10, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,11, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,12, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,13, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,14, voidop, ioapic_asm_ack, voidop, voidop, voidop)
-APICINTR(ioapic,15, voidop, ioapic_asm_ack, voidop, voidop, voidop)
+APICINTR(ioapic,0, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,1, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,2, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,3, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,4, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,5, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,6, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,7, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,8, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,9, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,10, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,11, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,12, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,13, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,14, ioapic_asm_ack, voidop, voidop, voidop, voidop)
+APICINTR(ioapic,15, ioapic_asm_ack, voidop, voidop, voidop, voidop)
 
 	.globl	_C_LABEL(Xintr_ioapic0),_C_LABEL(Xintr_ioapic1)
 	.globl	_C_LABEL(Xintr_ioapic2),_C_LABEL(Xintr_ioapic3)


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>Release-Note:
>Audit-Trail:
>Unformatted: