The following reply was made to PR port-amd64/33927; it has been noted by GNATS.

From: Dave Huang <khym@azeotrope.org>
To: gnats-bugs@NetBSD.org
Cc: port-amd64-maintainer@netbsd.org, gnats-admin@netbsd.org,
	netbsd-bugs@netbsd.org
Subject: Re: port-amd64/33927: -current/amd64 kernel reboots early in boot process
Date: Sat, 29 Jul 2006 14:51:17 -0500

 I managed to get a little more info on the reboot I'm currently
 seeing. The following messages are from a kernel with ACPI,
 MULTIPROCESSOR, ACPI_SCANPCI, MPVERBOSE (and for debugging purposes,
 DDB_COMMANDONENTER="trace;show registers", DB_MAX_LINE=100, and
 CPURESET_DELAY=10000)
 
 >> NetBSD/amd64 BIOS Boot, Revision 3.1
 >> (jmc@faith.netbsd.org, Tue Mar 22 04:29:40 UTC 2005)
 >> Memory: 622/2095104 k
 > boot /netbsd-cheetah
 booting hd0a:/netbsd-cheetah
 3298288+394648+249584=0x4c3948
 Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
     The NetBSD Foundation, Inc.  All rights reserved.
 Copyright (c) 1982, 1986, 1989, 1991, 1993
     The Regents of the University of California.  All rights reserved.
 
 NetBSD 3.99.23 (CHEETAH) #30: Sat Jul 29 02:26:11 CDT 2006
         khym@cheetah.azeotrope.org:/usr/obj.amd64/sys/arch/amd64/compile/CHEETAH
 total memory = 2046 MB
 avail memory = 1967 MB
 timecounter: Timecounters tick every 10.000 msec
 timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
 timecounter: selected timecounter "i8254" frequency 1193182 Hz quality 100
 mainbus0 (root)
 cpu0 at mainbus0: apid 0 (boot processor)
 cpu0: AMD Opteron(tm) Processor 246, 2009.36 MHz
 cpu0: features: e7dbfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
 cpu0: features: e7dbfbff<PGE,MCA,CMOV,PAT,PSE36,MPC,NOX,MMXX,MMX>
 cpu0: features: e7dbfbff<FXSR,SSE,SSE2,LONG,3DNOW2,3DNOW>
 cpu0: calibrating local timer
 cpu0: apic clock running at 200 MHz
 cpu0: 16 page colors
 cpu0: kstack at 0xffff8000488b1000 for 20480 bytes
 cpu0: idle pcb at 0xffff8000488b1000, idle sp at 0xffff8000488b5ff0
 cpu1 at mainbus0: apid 1 (application processor)
 cpu1: starting
 cpu1: AMD Opteron(tm) Processor 246, 2009.26 MHz
 cpu1: features: e7dbfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
 cpu1: features: e7dbfbff<PGE,MCA,CMOV,PAT,PSE36,MPC,NOX,MMXX,MMX>
 cpu1: features: e7dbfbff<FXSR,SSE,SSE2,LONG,3DNOW2,3DNOW>
 cpu1: kstack at 0xffff8000488b6000 for 20480 bytes
 cpu1: idle pcb at 0xffff8000488b6000, idle sp at 0xffff8000488baff0
 ioapic0 at mainbus0 apid 2 (I/O APIC)
 ioapic0: pa 0xfec00000, virtual wire mode, version 11, 24 pins
 ioapic1 at mainbus0 apid 3 (I/O APIC)
 ioapic1: pa 0xd8000000, virtual wire mode, version 11, 4 pins
 ioapic2 at mainbus0 apid 4 (I/O APIC)
 ioapic2: pa 0xd8001000, virtual wire mode, version 11, 4 pins
 ioapic3 at mainbus0 apid 5 (I/O APIC)
 ioapic3: pa 0xd8400000, virtual wire mode, version 11, 24 pins
 acpi0 at mainbus0: Advanced Configuration and Power Interface
 acpi0: fixed-feature power button present
 timecounter: Timecounter "ACPI-Fast" frequency 3579545 Hz quality 1000
 timecounter: selected timecounter "ACPI-Fast" frequency 3579545 Hz quality 1000
 ACPI-Fast 24-bit timer
 mpacpi: could not get bus number, assuming bus 0
 mpacpi: found root PCI bus 0 at level 1
 mpacpi: found subordinate bus 1 at level 2
 mpacpi: found subordinate bus 2 at level 2
 mpacpi: failed to derive bus number, ignoring
 mpacpi: failed to derive bus number, ignoring
 mpacpi: failed to derive bus number, ignoring
 mpacpi: found subordinate bus 9 at level 2
 mpacpi: found subordinate bus 10 at level 2
 mpacpi: found root PCI bus 128 at level 1
 mpacpi: found subordinate bus 129 at level 2
 mpacpi: failed to derive bus number, ignoring
 mpacpi: failed to derive bus number, ignoring
 mpacpi: failed to derive bus number, ignoring
 mpacpi: 7 PCI busses
 mpacpi: configuring PCI bus 0 int routing
 mpacpi: configuring PCI bus 1 int routing
 mpacpi: configuring PCI bus 2 int routing
 mpacpi: configuring PCI bus 9 int routing
 mpacpi: configuring PCI bus 10 int routing
 mpacpi: configuring PCI bus 128 int routing
 mpacpi: configuring PCI bus 129 int routing
 ioapic0: pin 0 attached to isa0 irq 0 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 1 attached to isa0 irq 1 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 3 attached to isa0 irq 3 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 4 attached to isa0 irq 4 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 5 attached to isa0 irq 5 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 6 attached to isa0 irq 6 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 7 attached to isa0 irq 7 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 8 attached to isa0 irq 8 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 9 attached to isa0 irq 9 (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic0: pin 10 attached to isa0 irq 10 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 11 attached to isa0 irq 11 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 12 attached to isa0 irq 12 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 13 attached to isa0 irq 13 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 14 attached to isa0 irq 14 (type 0<type=0> flags 0<pol=0,trig=0>)
 ioapic0: pin 15 attached to isa0 irq 15 (type 0<type=0> flags 0<pol=0,trig=0>)
 local apic: pin 1 attached to NMI (type 1<type=1=NMI> flags 0<pol=0,trig=0>)
 local apic: pin 1 attached to NMI (type 1<type=1=NMI> flags 0<pol=0,trig=0>)
 linkdev LSMB attached to pci0 device 1 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LSMB attached to pci0 device 1 INT_B (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LUS0 attached to pci0 device 2 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LUS2 attached to pci0 device 2 INT_B (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LMAC attached to pci0 device 10 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LACI attached to pci0 device 4 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LMCI attached to pci0 device 4 INT_B (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LPID attached to pci0 device 6 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LTID attached to pci0 device 7 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LSI1 attached to pci0 device 8 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK1 attached to pci1 device 4 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK2 attached to pci1 device 4 INT_B (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK3 attached to pci1 device 4 INT_C (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK4 attached to pci1 device 4 INT_D (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK4 attached to pci1 device 5 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK3 attached to pci2 device 0 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK4 attached to pci2 device 0 INT_B (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK1 attached to pci2 device 0 INT_C (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK2 attached to pci2 device 0 INT_D (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic1: pin 0 attached to pci9 device 4 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic1: pin 1 attached to pci9 device 4 INT_B (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic1: pin 2 attached to pci9 device 4 INT_C (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic1: pin 3 attached to pci9 device 4 INT_D (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic2: pin 0 attached to pci10 device 4 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic2: pin 1 attached to pci10 device 4 INT_B (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic2: pin 2 attached to pci10 device 4 INT_C (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic2: pin 3 attached to pci10 device 4 INT_D (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic2: pin 1 attached to pci10 device 9 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic2: pin 2 attached to pci10 device 9 INT_B (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic2: pin 3 attached to pci10 device 9 INT_C (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic2: pin 0 attached to pci10 device 9 INT_D (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic2: pin 2 attached to pci10 device 6 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ioapic2: pin 3 attached to pci10 device 6 INT_B (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LMAC attached to pci128 device 10 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK3 attached to pci129 device 0 INT_A (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK4 attached to pci129 device 0 INT_B (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK1 attached to pci129 device 0 INT_C (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 linkdev LNK2 attached to pci129 device 0 INT_D (type 0<type=0> flags f<pol=3=Act Lo,trig=3=Level>)
 ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
 ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
 ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
 ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
 acpibut0 at acpi0 (PNP0C0C): ACPI Power Button
 PNP0C01 [System Board] at acpi0 not configured
 PNP0A03 [PCI/PCI-X Host Bridge] at acpi0 not configured
 PNP0C02 [Plug and Play motherboard register resources] at acpi0 not configured
 PNP0C02 [Plug and Play motherboard register resources] at acpi0 not configured
 PNP0000 [AT Interrupt Controller] at acpi0 not configured
 attimer0 at acpi0 (PNP0100): AT Timer
 attimer0: io 0x40-0x43 irq 0
 PNP0200 [AT DMA Controller] at acpi0 not configured
 pcppi0 at acpi0 (PNP0800)
 pcppi0: io 0x61
 midi0 at pcppi0: PC speaker (CPU-intensive output)
 spkr0 at pcppi0
 sysbeep0 at pcppi0
 PNP0B00 [AT Real-Time Clock] at acpi0 not configured
 PNP0C04 [Math Coprocessor] at acpi0 not configured
 PNP0A05 [Generic Container Device] at acpi0 not configured
 com0 at acpi0 (PNP0501-1)
 com0: io 0x3f8-0x3ff irq 4
 com: ns16550a, working fifo
 com0: console
 pckbc0 at acpi0 (PNP0303): kbd port
 pckbc0: io 0x60,0x64 irq 1
 pckbc1 at acpi0 (PNP0F13): aux port
 pckbc1: irq 12
 PNP0C0F [PCI interrupt link device] at acpi0 not configured
 PNP0C0F [PCI interrupt link device] at acpi0 not configured
 PNP0C0F [PCI interrupt link device] at acpi0 not configured
 PNP0C0F [PCI interrupt link device] at acpi0 not configured
 PNP0C0F [PCI interrupt link device] at acpi0 not configured
 PNP0C0F [PCI interrupt link device] at acpi0 not configured
 PNP0C0F [PCI interrupt link device] at acpi0 not configured
 PNP0C0F [PCI interrupt link device] at acpi0 not configured
 PNP0A03 [PCI/PCI-X Host Bridge] at acpi0 not configured
 PNP0A03 [PCI/PCI-X Host Bridge] at acpi0 not configured
 pcppi0: attached to attimer0
 pckbd0 at pckbc0 (kbd slot)
 pckbc0: using irq 1 for kbd slot
 wskbd0 at pckbd0 mux 1
 pci0 at mainbus0 bus 0: configuration mode 1mainbus0: added to list as bus 0
 
 pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
 NVIDIA nForce4 Memory Controller (miscellaneous memory, revision 0xa3) at pci0 dev 0 function 0 not configured
 pcib0 at pci0 dev 1 function 0
 pcib0: NVIDIA nForce4 PCI-ISA bridge (rev. 0xa3)
 NVIDIA nForce4 SMBus (SMBus serial bus, revision 0xa2) at pci0 dev 1 function 1 not configured
 ohci0 at pci0 dev 2 function 0: NVIDIA nForce4 USB Host Controller (rev. 0xa2)
 linkdev LUS0 returned ACPI global int 20
 ohci0: interrupting at ioapic0 pin 20 (irq 10)
 ohci0: OHCI version 1.0, legacy support
 usb0 at ohci0: USB revision 1.0
 uhub0 at usb0
 uhub0: NVIDIA OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
 uhub0: 10 ports with 10 removable, self powered
 ehci0 at pci0 dev 2 function 1: NVIDIA nForce4 USB2 Host Controller (rev. 0xa3)
 linkdev LUS2 returned ACPI global int 21
 ehci0: interrupting at ioapic0 pin 21 (irq 7)
 ehci0: BIOS refuses to give up ownership, using force
 ehci0: EHCI version 1.0
 ehci0: companion controller, 4 ports each: ohci0
 usb1 at ehci0: USB revision 2.0
 uhub1 at usb1
 uhub1: NVIDIA EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
 uhub1: 10 ports with 10 removable, self powered
 auich0 at pci0 dev 4 function 0: nForce4 AC-97 Audio
 linkdev LACI returned ACPI global int 22
 auich0: interrupting at ioapic0 pin 22 (irq 12)
 auich0: ac97: Analog Devices AD1981B codec; headphone, 20 bit DAC, no 3D stereo
 auich0: ac97: ext id 605<AC97_22,AMAP,SPDIF,VRA>
 viaide0 at pci0 dev 6 function 0
 viaide0: NVIDIA nForce4 IDE Controller (rev. 0xf2)
 viaide0: bus-master DMA support present
 viaide0: primary channel configured to compatibility mode
 viaide0: primary channel interrupting at ioapic0 pin 14 (irq 14)
 atabus0 at viaide0 channel 0
 viaide0: secondary channel configured to compatibility mode
 viaide0: secondary channel interrupting at ioapic0 pin 15 (irq 15)
 atabus1 at viaide0 channel 1
 viaide1 at pci0 dev 7 function 0
 viaide1: NVIDIA nForce4 Serial ATA Controller (rev. 0xf3)
 viaide1: bus-master DMA support present
 viaide1: primary channel wired to native-PCI mode
 linkdev LTID returned ACPI global int 23
 viaide1: using ioapic0 pin 23 (irq 11) for native-PCI interrupt
 atabus2 at viaide1 channel 0
 viaide1: secondary channel wired to native-PCI mode
 atabus3 at viaide1 channel 1
 viaide2 at pci0 dev 8 function 0
 viaide2: NVIDIA nForce4 Serial ATA Controller (rev. 0xf3)
 viaide2: bus-master DMA support present
 viaide2: primary channel wired to native-PCI mode
 linkdev LSI1 returned ACPI global int 20
 viaide2: using ioapic0 pin 20 (irq 10) for native-PCI interrupt
 atabus4 at viaide2 channel 0
 viaide2: secondary channel wired to native-PCI mode
 atabus5 at viaide2 channel 1
 ppb0 at pci0 dev 9 function 0: NVIDIA nForce4 PCI Host Bridge (rev. 0xa2)
 pci1 at ppb0 bus 1ppb0: added to list as bus 1
 
 pci1: i/o space, memory space enabled
 fwohci0 at pci1 dev 5 function 0: Texas Instruments TSB43AA22/A IEEE 1394 Host Controller (rev. 0x00)
 linkdev LNK4 returned ACPI global int 16
 fwohci0: interrupting at ioapic0 pin 16 (irq 12)
 fwohci0: OHCI version 1.10 (ROM=1)
 fwohci0: No. of Isochronous channels is 4.
 fwohci0: EUI64 00:e0:81:00:00:23:50:e6
 fwohci0: Phy 1394a available S400, 2 ports.
 fwohci0: Link S400, max_rec 2048 bytes.
 ieee1394if0 at fwohci0: IEEE1394 bus
 fwip0 at ieee1394if0: IP over IEEE1394
 fwohci0: Initiate bus reset
 NVIDIA nForce4 Ethernet (miscellaneous bridge, revision 0xa3) at pci0 dev 10 function 0 not configured
 ppb1 at pci0 dev 14 function 0: NVIDIA nForce4 PCIe Host Bridge (rev. 0xa3)
 pci2 at ppb1 bus 2ppb1: added to list as bus 2
 
 pci2: i/o space, memory space enabled, rd/line, wr/inv ok
 vga0 at pci2 dev 0 function 0: NVIDIA product 0x0140 (rev. 0xa2)
 vga0: WARNING: ignoring 64-bit BAR @ 0x14
 vga0: WARNING: ignoring 64-bit BAR @ 0x1c
 wsdisplay0 at vga0 kbdmux 1
 wsmux1: connecting to wsdisplay0
 wskbd0: connecting to wsdisplay0
 pchb0 at pci0 dev 24 function 0
 pchb0: Advanced Micro Devices AMD64 HyperTransport configuration (rev. 0x00)
 pchb1 at pci0 dev 24 function 1
 pchb1: Advanced Micro Devices AMD64 Address Map configuration (rev. 0x00)
 pchb2 at pci0 dev 24 function 2
 pchb2: Advanced Micro Devices AMD64 DRAM configuration (rev. 0x00)
 pchb3 at pci0 dev 24 function 3
 pchb3: Advanced Micro Devices AMD64 Miscellaneous configuration (rev. 0x00)
 pchb4 at pci0 dev 25 function 0
 pchb4: Advanced Micro Devices AMD64 HyperTransport configuration (rev. 0x00)
 pchb5 at pci0 dev 25 function 1
 pchb5: Advanced Micro Devices AMD64 Address Map configuration (rev. 0x00)
 pchb6 at pci0 dev 25 function 2
 pchb6: Advanced Micro Devices AMD64 DRAM configuration (rev. 0x00)
 pchb7 at pci0 dev 25 function 3
 pchb7: Advanced Micro Devices AMD64 Miscellaneous configuration (rev. 0x00)
 isa0 at pcib0
 pci3 at mainbus0 bus 9mainbus0: added to list as bus 9
 
 pci3: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
 pci4 at mainbus0 bus 10mainbus0: added to list as bus 10
 
 pci4: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
 pci5 at mainbus0 bus 128mainbus0: added to list as bus 128
 
 pci5: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
 NVIDIA nForce4 Memory Controller (miscellaneous memory, revision 0xa3) at pci5 dev 0 function 0 not configured
 NVIDIA product 0x00d3 (miscellaneous memory, revision 0xa3) at pci5 dev 1 function 0 not configured
 NVIDIA nForce4 Ethernet (miscellaneous bridge, revision 0xa3) at pci5 dev 10 function 0 not configured
 ppb2 at pci5 dev 14 function 0: NVIDIA nForce4 PCIe Host Bridge (rev. 0xa3)
 pci6 at ppb2 bus 129ppb2: added to list as bus 129
 
 pci6: i/o space, memory space enabled, rd/line, wr/inv ok
 Link Device LSMB:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     2  20 21 22 23
 
 Link Device LUS0:
 Index  IRQ  Rtd  Ref  IRQs
     0   20   Y     1  20 21 22 23
 
 Link Device LUS2:
 Index  IRQ  Rtd  Ref  IRQs
     0   21   Y     1  20 21 22 23
 
 Link Device LMAC:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     1  20 21 22 23
 
 Link Device LACI:
 Index  IRQ  Rtd  Ref  IRQs
     0   22   Y     1  20 21 22 23
 
 Link Device LMCI:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     1  20 21 22 23
 
 Link Device LPID:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     1  20 21 22 23
 
 Link Device LTID:
 Index  IRQ  Rtd  Ref  IRQs
     0   23   Y     1  20 21 22 23
 
 Link Device LSI1:
 Index  IRQ  Rtd  Ref  IRQs
     0   20   Y     1  20 21 22 23
 
 Link Device LNK1:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     2  16 17 18 19
 
 Link Device LNK2:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     2  16 17 18 19
 
 Link Device LNK3:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     2  16 17 18 19
 
 Link Device LNK4:
 Index  IRQ  Rtd  Ref  IRQs
     0   16   Y     3  16 17 18 19
 
 Link Device LMAC:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     1  52 53 54 55
 
 Link Device LNK3:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     1  48 49 50 51
 
 Link Device LNK4:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     1  48 49 50 51
 
 Link Device LNK1:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     1  48 49 50 51
 
 Link Device LNK2:
 Index  IRQ  Rtd  Ref  IRQs
     0  255   N     1  48 49 50 51
 
 cpu0: prelint0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
 cpu0: prelint1 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
 cpu0: timer0 300c0<vector=c0,delmode=0,masked,dest=0> 0<target=0>
 cpu0: pcint0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
 cpu0: lint0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
 cpu0: lint1 0<vector=0,delmode=0,dest=0> 0<target=0>
 cpu0: err0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
 ioapic0: enabling
 ioapic0: int1 90<vector=90,delmode=0,dest=0> 0<target=0>
 ioapic0: int4 d0<vector=d0,delmode=0,dest=0> 0<target=0>
 ioapic0: int9 a0a0<vector=a0,delmode=0,actlo,level,dest=0> 0<target=0>
 ioapic0: int14 62<vector=62,delmode=0,dest=0> 0<target=0>
 ioapic0: int15 63<vector=63,delmode=0,dest=0> 0<target=0>
 ioapic0: int16 e065<vector=65,delmode=0,actlo,irrpending,level,dest=0> 0<target=0>
 ioapic0: int20 e060<vector=60,delmode=0,actlo,irrpending,level,dest=0> 0<target=0>
 ioapic0: int21 e061<vector=61,delmode=0,actlo,irrpending,level,dest=0> 0<target=0>
 ioapic0: int22 a0b0<vector=b0,delmode=0,actlo,level,dest=0> 0<target=0>
 ioapic0: int23 a064<vector=64,delmode=0,actlo,level,dest=0> 0<target=0>
 ioapic1: enabling
 ioapic2: enabling
 ioapic3: enabling
 timecounter: Timecounter "TSC" frequency 2009367350 Hz quality 800
 fwohci0: node_id=0xc800ffc0, gen=1, CYCLEMASTER mode
 ieee1394if0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
 ieee1394if0: bus manager 0 (me)
 timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
 auich0: measured ac97 link rate at 47999 Hz, will use 48000 Hz
 audio0 at auich0: full duplex, mmap, independent
 atapibus0 at atabus0: 2 targets
 cd0 at atapibus0 drive 0: <LITE-ON DVDRW SOHW-1673S, , JS0B> cdrom removable
 cd0: 32-bit data port
 cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 4 (Ultra/66)
 cd0(viaide0:0:0): using PIO mode 4, Ultra-DMA mode 4 (Ultra/66) (using DMA)
 uhub2 at uhub0 port 4
 uhub2: Texas Instruments UT-USB41 hub, class 9/0, rev 1.10/1.10, addr 2
 uhub2: 4 ports with 4 removable, self powered
 wd0 at atabus4 drive 0: <WDC WD2500SD-01KCB0>
 wd0: drive supports 16-sector PIO transfers, LBA48 addressing
 wd0: 232 GB, 484521 cyl, 16 head, 63 sec, 512 bytes/sect x 488397168 sectors
 wd0: 32-bit data port
 wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
 wd0(viaide2:0:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using DMA)
 wd1 at atabus5 drive 0: <HDT722525DLA380>
 wd1: drive supports 16-sector PIO transfers, LBA48 addressing
 wd1: 232 GB, 484521 cyl, 16 head, 63 sec, 512 bytes/sect x 488397168 sectors
 wd1: 32-bit data port
 wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
 wd1(viaide2:1:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using DMA)
 uhidev0 at uhub2 port 2 configuration 1 interface 0
 uhidev0: Logitech USB-PS/2 Optical Mouse, rev 2.00/18.00, addr 3, iclass 3/1
 ums0 at uhidev0: 6 buttons and Z dir.
 wsmouse0 at ums0 mux 0
 boot device: wd0
 root on wd0a dumps on wd0b
 root file system type: ffs
 cpu1: prelint0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
 cpu1: prelint1 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
 cpu1: timer0 200c0<vector=c0,delmode=0,dest=0> 0<target=0>
 cpu1: pcint0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
 cpu1: lint0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
 cpu1: lint1 400<vector=0,delmode=4,dest=0> 0<target=0>
 cpu1: err0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>
 cpu1: CPU 1 running
 kernel: double fault trap, code=0
 Stopped in pid 14.1 (pagedaemon) at	netbsd:Xintr_legacy7+0x52:	movq %rdi,0(%rsp)
 Xintr_legacy7() at netbsd:Xintr_legacy7+0x52
 --- interrupt ---
 0:
 ds	0
 es	0
 fs	0
 gs	0
 rdi	0xd
 rsi	0x202
 rbp	0xffff800049363f10
 rbx	0xffffffff805b8f98
 rdx	0xd
 rcx	0xffff8000041be000
 rax	0x40000000
 r8	0
 r9	0x40
 r10	0xffff8000488baee0
 r11	0xffffffff80171f80
 r12	0xffff8000041be000
 r13	0xffff80004888d1f0
 r14	0
 r15	0
 rip	0xffffffff80102912
 cs	0x8
 rflags	0x10082
 rsp	0xffff800049360fe0
 ss	0x10
 0xffffffff80102912:	movq	%rdi,0(%rsp)
 db(1)>
 [ reboots automatically ]
 
 The above is actually a composite of 3 boots. The beginning up to the
 "cpu1: err0 10000<vector=0,delmode=0,masked,dest=0> 0<target=0>" line
 was captured using a serial console from a kernel without
 CPURESET_DELAY or DB_MAX_LINE. However, when using a serial console,
 it always reboots soon after printing that line (it outputs the first
 character or two of the "cpu1: CPU 1 running" line, but never more
 than that). Increasing CPURESET_DELAY has no effect.
 
 When using a VGA console, it shows more before rebooting, but it often
 reboots before completely printing the register dump. The messages
 scroll by so fast that the only way I have to get the output is to
 record it with a video camera, but even 30 frames/sec isn't fast
 enough to catch the messages before it reboots.
 
 The "cpu1: CPU 1 running" line through the end of the stack trace is
 from a second boot, without DB_MAX_LINE=100. It printed part of the
 "show registers" then "--db_more--" at the bottom of the screen before
 rebooting. So, I used gdb to increase db_max_line, but I guess that
 must've hosed the symbol table, since ddb then only showed addresses
 in hex, rather than looking up the symbols. 0xffffffff80102912 is
 still Xintr_legacy7+0x52 though. In any case, the output of "show
 registers" through the end is from that kernel. FWIW, some of the
 registers values from boot #2 were different from the values from boot
 #3.
 
 I rebuilt a kernel with DB_MAX_LINE=100 to get a proper symbol table
 back in, but after trying over 10 times, it either rebooted before
 showing the full "show registers" output, or my video camera didn't
 catch the fraction of a second that the full output was on the screen.
 So I gave up and figured this'll be good enough :)
 
 The stills from the video camera were a bit blurry, so there's a
 possibility that some of the "0"s are "8"s or that some of the "c"s
 are "e"s, but I think I was able to figure out which was which.
 
 So, anything else I can try to help get this resolved?