Hoping the problem might have gone away, I installed NetBSD/amd64 4.0 
RC2 on a Dell Precision 490 which used to reboot when 'startx' was 
executed when it was running a -current build from a few weeks ago. 
Unfortunately it still reboots, but at least the USB keyboard seems 
to operate reliably now.

I wonder if anyone has a suggestion as to what the cure might be? 
It's going to be difficult for me if X won't run on it.  I've 
appended dmesg's output to this message.

The video card is an NVIDIA Quadro FX 550.  I've tried with no 
/etc/X11/XF86Config and with one which uses the 'nv' driver.


Ray



% /sbin/dmesg
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 4.0_RC2 (GENERIC.MP) #0: Mon Oct  1 18:11:58 PDT 2007
 
builds@wb28:/home/builds/ab/netbsd-4-0-RC2/amd64/200710012132Z-obj/home/builds/ab/netbsd-4-0-RC2/src/sys/arch/amd64/compile/GENERIC.MP
total memory = 8189 MB
avail memory = 7892 MB
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
mainbus0 (root)
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Xeon(R) CPU            5160  @ 3.00GHz, 2992.66 MHz
cpu0: features: bffbfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features: bffbfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,B20,DS,ACPI,MMX>
cpu0: features: bffbfbff<FXSR,SSE,SSE2,SS,HTT,TM,SBF>
cpu0: features2: 4e3bd<SSE3,MONITOR,DS-CPL,VMX,EST,TM2,xTPR>
cpu0: features3: bffbfbff<SYSCALL/SYSRET,XD,EM64T>
cpu0: L2 cache 4 MB 64B/line 16-way
cpu0: calibrating local timer
cpu0: apic clock running at 332 MHz
cpu0: 64 page colors
cpu1 at mainbus0: apid 6 (application processor)
cpu1: starting
cpu1: Intel(R) Xeon(R) CPU            5160  @ 3.00GHz, 2992.50 MHz
cpu1: features: bffbfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu1: features: bffbfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,B20,DS,ACPI,MMX>
cpu1: features: bffbfbff<FXSR,SSE,SSE2,SS,HTT,TM,SBF>
cpu1: features2: 4e3bd<SSE3,MONITOR,DS-CPL,VMX,EST,TM2,xTPR>
cpu1: features3: bffbfbff<SYSCALL/SYSRET,XD,EM64T>
cpu1: L2 cache 4 MB 64B/line 16-way
cpu2 at mainbus0: apid 1 (application processor)
cpu2: starting
cpu2: Intel(R) Xeon(R) CPU            5160  @ 3.00GHz, 2992.50 MHz
cpu2: features: bffbfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu2: features: bffbfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,B20,DS,ACPI,MMX>
cpu2: features: bffbfbff<FXSR,SSE,SSE2,SS,HTT,TM,SBF>
cpu2: features2: 4e3bd<SSE3,MONITOR,DS-CPL,VMX,EST,TM2,xTPR>
cpu2: features3: bffbfbff<SYSCALL/SYSRET,XD,EM64T>
cpu2: L2 cache 4 MB 64B/line 16-way
cpu3 at mainbus0: apid 7 (application processor)
cpu3: starting
cpu3: Intel(R) Xeon(R) CPU            5160  @ 3.00GHz, 2992.50 MHz
cpu3: features: bffbfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu3: features: bffbfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,B20,DS,ACPI,MMX>
cpu3: features: bffbfbff<FXSR,SSE,SSE2,SS,HTT,TM,SBF>
cpu3: features2: 4e3bd<SSE3,MONITOR,DS-CPL,VMX,EST,TM2,xTPR>
cpu3: features3: bffbfbff<SYSCALL/SYSRET,XD,EM64T>
cpu3: L2 cache 4 MB 64B/line 16-way
ioapic0 at mainbus0 apid 8 (I/O APIC)
ioapic0: pa 0xfec00000, version 20, 24 pins
ioapic0: misconfigured as apic 0
ioapic0: remapped to apic 8
ioapic1 at mainbus0 apid 9 (I/O APIC)
ioapic1: pa 0xfec80000, version 20, 24 pins
ioapic1: misconfigured as apic 0
ioapic1: remapped to apic 9
acpi0 at mainbus0: Advanced Configuration and Power Interface
acpi0: using Intel ACPI CA subsystem version 20060217
acpi0: X/RSDT: OemId <DELL  , B8K    ,0000000d>, AslId <ASL ,00000061>
acpi0: SCI interrupting at int 9
acpi0: fixed-feature power button present
timecounter: Timecounter "ACPI-Fast" frequency 3579545 Hz quality 1000
ACPI-Fast 24-bit timer
mpacpi: could not get bus number, assuming bus 0
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
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
PNP0C0C [ACPI power button device] at acpi0 not configured
PNP0A03 [PCI/PCI-X Host Bridge] at acpi0 not configured
PNP0C01 [System Board] at acpi0 not configured
PNP0200 [AT DMA Controller] at acpi0 not configured
PNP0C04 [Math Coprocessor] at acpi0 not configured
PNP0000 [AT Interrupt Controller] at acpi0 not configured
PNP0800 [AT-style speaker sound] at acpi0 not configured
PNP0B00 [AT Real-Time Clock] at acpi0 not configured
PNP0100 [AT Timer] at acpi0 not configured
PNP0401 [ECP printer port] at acpi0 not configured
PNP0501 [16550A-compatible COM port] at acpi0 not configured
PNP0501 [16550A-compatible COM port] 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
PNP0103 [HPET Timer] at acpi0 not configured
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: Intel 5000X Memory Controller Hub (rev. 0x12)
ppb0 at pci0 dev 2 function 0: Intel product 0x25e2 (rev. 0x12)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled, rd/line, wr/inv ok
ppb1 at pci1 dev 0 function 0: Intel 63xxESB PCI Express Upstream 
Port (rev. 0x01)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled, rd/line, wr/inv ok
ppb2 at pci2 dev 0 function 0: Intel 63xxESB PCI Express Downstream 
Port #1 (rev. 0x01)
pci3 at ppb2 bus 3
pci3: i/o space, memory space enabled, rd/line, wr/inv ok
ppb3 at pci2 dev 1 function 0: Intel 63xxESB PCI Express Downstream 
Port #2 (rev. 0x01)
pci4 at ppb3 bus 4
pci4: i/o space, memory space enabled, rd/line, wr/inv ok
ppb4 at pci1 dev 0 function 3: Intel 63xxESB PCI Express to PCI-X 
Bridge (rev. 0x01)
pci5 at ppb4 bus 5
pci5: i/o space, memory space enabled, rd/line, wr/inv ok
ppb5 at pci0 dev 3 function 0: Intel product 0x25e3 (rev. 0x12)
pci6 at ppb5 bus 6
pci6: i/o space, memory space enabled, rd/line, wr/inv ok
ppb6 at pci0 dev 4 function 0: Intel product 0x25fa (rev. 0x12)
pci7 at ppb6 bus 7
pci7: i/o space, memory space enabled, rd/line, wr/inv ok
vga0 at pci7 dev 0 function 0: NVIDIA product 0x014d (rev. 0xa2)
wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
ppb7 at pci0 dev 5 function 0: Intel product 0x25e5 (rev. 0x12)
pci8 at ppb7 bus 8
pci8: i/o space, memory space enabled, rd/line, wr/inv ok
ppb8 at pci0 dev 6 function 0: Intel product 0x25e6 (rev. 0x12)
pci9 at ppb8 bus 9
pci9: i/o space, memory space enabled, rd/line, wr/inv ok
ppb9 at pci0 dev 7 function 0: Intel product 0x25e7 (rev. 0x12)
pci10 at ppb9 bus 10
pci10: i/o space, memory space enabled, rd/line, wr/inv ok
pchb1 at pci0 dev 16 function 0
pchb1: Intel product 0x25f0 (rev. 0x12)
pchb2 at pci0 dev 16 function 1
pchb2: Intel product 0x25f0 (rev. 0x12)
pchb3 at pci0 dev 16 function 2
pchb3: Intel product 0x25f0 (rev. 0x12)
pchb4 at pci0 dev 17 function 0
pchb4: Intel product 0x25f1 (rev. 0x12)
pchb5 at pci0 dev 19 function 0
pchb5: Intel product 0x25f3 (rev. 0x12)
pchb6 at pci0 dev 21 function 0
pchb6: Intel product 0x25f5 (rev. 0x12)
pchb7 at pci0 dev 22 function 0
pchb7: Intel product 0x25f6 (rev. 0x12)
azalia0 at pci0 dev 27 function 0: Generic High Definition Audio Controller
azalia0: interrupting at ioapic0 pin 16 (irq 11)
azalia0: host: Intel 63xxESB High Definition Audio Controller (rev. 9)
azalia0: host: High Definition Audio rev. 1.0
ppb10 at pci0 dev 28 function 0: Intel 63xxESB PCI Express Port #1 (rev. 0x09)
pci11 at ppb10 bus 11
pci11: i/o space, memory space enabled, rd/line, wr/inv ok
bge0 at pci11 dev 0 function 0: Broadcom BCM5752 Gigabit Ethernet
bge0: interrupting at ioapic0 pin 16 (irq 11)
bge0: pcie mode=0x105000
bge0: ASIC BCM5752 A2 (0x6002), Ethernet address 00:19:b9:1b:42:10
bge0: setting short Tx thresholds
brgphy0 at bge0 phy 1: BCM5752 1000BASE-T media interface, rev. 0
brgphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
uhci0 at pci0 dev 29 function 0: Intel 63xxESB USB UHCI Controller (rev. 0x09)
uhci0: interrupting at ioapic0 pin 21 (irq 10)
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 29 function 1: Intel 63xxESB USB UHCI Controller (rev. 0x09)
uhci1: interrupting at ioapic0 pin 22 (irq 9)
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 29 function 2: Intel 63xxESB USB UHCI Controller (rev. 0x09)
uhci2: interrupting at ioapic0 pin 18 (irq 5)
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhci3 at pci0 dev 29 function 3: Intel 63xxESB USB UHCI Controller (rev. 0x09)
uhci3: interrupting at ioapic0 pin 23 (irq 10)
usb3 at uhci3: USB revision 1.0
uhub3 at usb3
uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
ehci0 at pci0 dev 29 function 7: Intel 63xxESB USB EHCI Controller (rev. 0x09)
ehci0: interrupting at ioapic0 pin 21 (irq 10)
ehci0: BIOS has given up ownership
ehci0: EHCI version 1.0
ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2 uhci3
usb4 at ehci0: USB revision 2.0
uhub4 at usb4
uhub4: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub4: 8 ports with 8 removable, self powered
ppb11 at pci0 dev 30 function 0: Intel 82801BA Hub-PCI Bridge (rev. 0xd9)
pci12 at ppb11 bus 12
pci12: i/o space, memory space enabled
fwohci0 at pci12 dev 2 function 0: Lucent Technologies FW322/323 IEEE 
1394 Host Controller (rev. 0x61)
fwohci0: interrupting at ioapic0 pin 18 (irq 5)
fwohci0: OHCI version 1.0 (ROM=1)
fwohci0: No. of Isochronous channels is 8.
fwohci0: EUI64 00:00:d1:00:81:93:48:ce
fwohci0: Phy 1394a available S400, 3 ports.
fwohci0: Link S400, max_rec 2048 bytes.
ieee1394if0 at fwohci0: IEEE1394 bus
fwip0 at ieee1394if0: IP over IEEE1394
fwohci0: Initiate bus reset
pcib0 at pci0 dev 31 function 0
pcib0: Intel 63xxESB LPC Interface Bridge (rev. 0x09)
piixide0 at pci0 dev 31 function 1
piixide0: Intel 631xESB/632xESB IDE Controller (rev. 0x09)
piixide0: bus-master DMA support present
piixide0: primary channel configured to compatibility mode
piixide0: primary channel interrupting at ioapic0 pin 14 (irq 14)
atabus0 at piixide0 channel 0
piixide0: secondary channel configured to compatibility mode
piixide0: secondary channel ignored (disabled)
piixide1 at pci0 dev 31 function 2
piixide1: Intel 631xESB/632xESB Serial ATA Controller (rev. 0x09)
piixide1: bus-master DMA support present
piixide1: primary channel configured to native-PCI mode
piixide1: using ioapic0 pin 20 (irq 9) for native-PCI interrupt
atabus1 at piixide1 channel 0
piixide1: secondary channel configured to native-PCI mode
atabus2 at piixide1 channel 1
Intel 63xxESB SMBus Controller (SMBus serial bus, revision 0x09) at 
pci0 dev 31 function 3 not configured
isa0 at pcib0
lpt0 at isa0 port 0x378-0x37b irq 7
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
attimer0 at isa0 port 0x40-0x43: AT Timer
pcppi0 at isa0 port 0x61
pcppi0: children must have an explicit unit
midi0 at pcppi0: PC speaker (CPU-intensive output)
sysbeep0 at pcppi0
pcppi0: attached to attimer0
ioapic0: enabling
ioapic1: enabling
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
azalia0: codec[0]: Sigmatel STAC9200 (rev. 34.1)
azalia0: codec[0]: High Definition Audio rev. 1.0
azalia0: playback: max channels=2, encodings=1<PCM>
azalia0: playback: PCM 
formats=e07e0<24bit,20bit,16bit,192kHz,176.4kHz,96kHz,88.2kHz,48kHz,44.1kHz>
azalia0: recording: max channels=2, encodings=1<PCM>
azalia0: recording: PCM 
formats=e07e0<24bit,20bit,16bit,192kHz,176.4kHz,96kHz,88.2kHz,48kHz,44.1kHz>
audio0 at azalia0: full duplex, independent
Kernelized RAIDframe activated
atapibus0 at atabus0: 2 targets
cd0 at atapibus0 drive 1: <PHILIPS DVD+/-RW DVD8801, , 4D28> cdrom removable
cd0: 32-bit data port
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
wd0 at atabus0 drive 0: <Maxtor 90845D4>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 8063 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 16514064 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
wd0(piixide0:0:0): using PIO mode 4, DMA mode 2 (using DMA)
cd0(piixide0:0:1): using PIO mode 4, DMA mode 2 (using DMA)
uhub5 at uhub4 port 1
uhub5: Standard Microsystems product 0x2504, class 9/0, rev 2.00/0.00, addr 2
uhub5: multiple transaction translators
uhub5: 4 ports with 4 removable, self powered
uhidev0 at uhub5 port 1 configuration 1 interface 0
uhidev0: Microsoft Microsoft 3-Button Mouse with IntelliEye(TM), rev 
1.10/3.00, addr 3, iclass 3/1
ums0 at uhidev0: 3 buttons and Z dir.
wsmouse0 at ums0 mux 0
uhub6 at uhub5 port 2
uhub6: Dell Dell USB Keyboard Hub, class 9/0, rev 1.10/2.00, addr 4
uhub6: 3 ports with 2 removable, bus powered
uhidev1 at uhub6 port 1 configuration 1 interface 0
uhidev1: Dell Dell USB Keyboard, rev 1.10/2.00, addr 5, iclass 3/1
ukbd0 at uhidev1
wskbd1 at ukbd0 mux 1
wskbd1: connecting to wsdisplay0
uhidev2 at uhub6 port 1 configuration 1 interface 1
uhidev2: Dell Dell USB Keyboard, rev 1.10/2.00, addr 5, iclass 3/0
uhidev2: 3 report ids
uhid0 at uhidev2 reportid 1: input=1, output=0, feature=0
uhid1 at uhidev2 reportid 2: input=1, output=0, feature=0
uhid2 at uhidev2 reportid 3: input=3, output=0, feature=0
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
cpu2: CPU 1 running
cpu1: CPU 6 running
cpu3: CPU 7 running
bge0: pcie mode=0x105000
bge0: pcie mode=0x105000
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)
uhub5: at uhub4 port 1 (addr 2) disconnected
uhidev0: at uhub5 port 1 (addr 3) disconnected
wsmouse0 detached
ums0 detached
uhidev0 detached
uhub6: at uhub5 port 2 (addr 4) disconnected
uhidev1: at uhub6 port 1 (addr 5) disconnected
wskbd1: disconnecting from wsdisplay0
wskbd1 detached
ukbd0 detached
uhidev1 detached
uhidev2: at uhub6 port 1 (addr 5) disconnected
uhid0 detached
uhid1 detached
uhid2 detached
uhidev2 detached
uhub6 detached
uhub5 detached
%