Subject: port-i386/35618: ioapic hangs a kernel boot
To: None <,,>
From: Bernd Ernesti <>
List: netbsd-bugs
Date: 02/15/2007 22:15:00
>Number:         35618
>Category:       port-i386
>Synopsis:       ioapic hangs a kernel boot
>Confidential:   no
>Severity:       non-critical
>Priority:       high
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Feb 15 22:15:00 +0000 2007
>Originator:     Bernd Ernesti
>Release:        NetBSD 4.99.7
System: NetBSD 4.99.7
Architecture: i386
Machine: i386
	The kernel stops after printing the "ioapic0: enabling" line.
	Btw, there is no manpage about ioapic.

	Compile an ACPI kernel with "ioapic* at mainbus? apid?" and notice
	that it stops after the "ioapic0: enabling" output.

	An older kernel (<3.99.22) or a kernel without ioapic doesn't stop.

	This is an Gigabyte GA-K8NSC-939 board.
	dmesg log of the last working kernel before the changes mentioning
	below and an acpi dump can be found on

	I could pin it down to the following source changes where this problem

Module Name:    src
Committed By:   christos
Date:           Tue Jul  4 00:30:24 UTC 2006

Modified Files:
        src/sys/arch/amd64/amd64: mainbus.c
        src/sys/arch/amd64/conf: GENERIC GENERIC_ACPI INSTALL_ACPI
        src/sys/arch/i386/conf: GENERIC GENERIC.MP GENERIC.MPACPI INSTALL.MP
        src/sys/arch/i386/i386: mainbus.c 
        src/sys/arch/x86/conf: files.x86
        src/sys/arch/x86/include: intr.h mpacpi.h mpbiosvar.h mpconfig.h pic.h
        src/sys/arch/x86/pci: pci_intr_machdep.c pci_machdep.c
        src/sys/arch/x86/x86: acpi_machdep.c i8259.c intr.c ioapic.c mpacpi.c
        src/sys/dev/acpi: acpi.c acpi_quirks.c acpivar.h files.acpi
        src/sys/dev/pci: pccbb.c
Added Files:
        src/sys/dev/acpi: acpi_pci_link.c 

Log Message:
Apply fvdl's acpi pci interrupt configuration code.
- MPACPI is no more.