I think you bt /l then reboot 0x104. After that you can use dmesg to  
extract the dmesg with the traceback from the core file.

On Jun 21, 2006, at 2:54 PM, Ja'far Railton wrote:

> Hello
>
> I have a new problem when I remove my usb pen. If in X, everything
> freezes; if not, it goes into db>. The error message before that is:
>
> [by hand]
> uvm_fault (0xc06c7900, 0x500f000, 1) -> 0xe
> kernel: supervisor trap page fault code=0
> stopped in pid 4.1 (usb0) at netbsd:kprintf + 0x8d2: repne scasb (% 
> esi)
>
> I can do a bt, s, etc., in db but I don't know how to save the output.
>
> TIA for your help. I attach the dmesg (+ 1/2 dmesg which shows a
> different usb pen attached at boot).
>
>
> : full duplex, mmap, independent
> midi0 at autri0: 4DWAVE MIDI UART
> pcib0 at pci0 dev 7 funCtion 0
> pcib0: Acer Labs M1543 PCI-ISA Bridge (rev. 0x00)
> fxp0 at pci0 dev 10 function 0: i82550 Ethernet, rev 13
> fxp0: interrupting at irq 11
> fxp0: Ethernet address 00:00:e2:56:c1:da
> inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 4
> inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
> aceride0 at pci0 dev 16 function 0
> aceride0: Acer Labs M5229 UDMA IDE Controller (rev. 0xc3)
> aceride0: bus-master DMA support present
> aceride0: primary channel configured to compatibility mode
> aceride0: primary channel interrupting at irq 14
> atabus0 at aceride0 channel 0
> aceride0: second!ry channel configured to compatibility mode
> aceride0: secondary channel interrupting at irq 15
> atabus1 at aceride0 channel 1
> Acer Labs M7101 Power Management Controller (miscellaneous bridge)  
> at pci0 dev 17 function 0 not c/nfigured
> cbb0 at pci0 dev 19 function 0: O2 Micro OZ6912/OZ6972 PCI-CardBus  
> Bridge (rev. 0x00)
> ohci0 at pci0 dev 20 function 0: Acer Labs M5237 USB 1.1 Host  
> Controller (rer. 0x03)
> ohci0: interrupting at irq 10
> ohci0: OHCI version 1.0, legacy support
> usb0 at ohci0: USB revision 1.0
> uhub0 at usb0
> uhub0: Acer Labs OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
> uhub0: 4 ports with 4 removable, self powered
> isa0 at pcib0
> lpt2 at isa0 port 0x3bc-0x3bf irq : polled
> 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
> pms0 at pckbc0 (aux slot)
> pckbc0: using irq 12 for aux 3lot
> wsmouse0 at pms0 mux 0
> attimer0 at isa0 port 0x40-0x43: AT Timer
> pcppi0 at isa0 port 0x61
> midi1 at pcppi0: PC speaker
> sysbeep0 at pcppi0
> isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
> npx0 at isa0 port 0xf0-0xff
> npx0: using exception 16
> pcppi0: attached to attimer0
> isapnp0: no ISA Plug 'n Play devices found
> cbb0: interrupting at irq 11
> cardslot0 at cbb0 slot 0 flags 0
> cardbus0 at cardslot0: bus 2
> pcmcia0 at cardslot0
> apm0 at mainbu30: Advanced Power Management BIOS
> apm0: Power Management spec V1.2
> timecounter: Timecounter "TSC" frequency 697507270 Hz quality 800
> timecounter: selected timecounter "TSC" frequency 697507270 Hz  
> quality 800
> timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
> Kernelized RAIDframe activated
> com3 at pcmcia0 function 0: <Billionton V92 Fax Modem, FM56C-BFS,  
> 5.41>
> cfe->iomask = 10
> cfe->iospace[0].length = 8
> com3: ns16550a, working fifo
> umass0 at uhub0 port 1 configuration 1 interface 0
> umass0: Kingston DataTraveler 2.0, rev 2.00/1.00, addr 2
> umass0: using SCSI over Bulk-Only
> scsibus0 at umass0: 2 targets, 1 lun per target
> sd0 at scsibus0 target 0 lun 0: <Kingston, DataTraveler 2.0, 1.00>  
> disk removable
> sd0: 240 MB, 962 cyl, 32 head, 16 sec, 512 bytes/sect x 492544 sectors
> wd0 at atabus0 drive 0: <FUJITSU MHT2040AS>
> wd0: drive supports 16-sector PIO transfers, LBA addressing
> wd0: 38154 MB, 77520 cyl, 16 head, 63 sec, 512 bytes/sect x  
> 78140160 sectors
> wd0: 32-bit data port
> wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/ 
> 100)
> wd0(aceride0:0:0): using PIO mode 4, Ultra-DMA mode 4 (Ultra/66)  
> (using DMA)
> atapibus0 at atabus1: 2 targets
> cd0 at atapibus0 drive 0: <CD-224E, , 2.7B> cdrom removable
> cd0: 32-bit data port
> cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/ 
> 33)
> cd0(aceride0:1:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33)  
> (using DMA)
> sd0(umass0:0:0:0): no door lock
> findroot: unable to read block 25114384
> boot device: wd0
> root on wd0a dumps on wd0b
> root file systEm type: ffs
> 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)
> : at uhub0 port 1 (addr 2) disconnected
> uvm_fault(0xc06c7900, 0, 1) -> 0xe
> 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 3.99.21 (UMRAH) #0: Sat Jun 10 20:55:05 UTC 2006
> 	jr0@think.makhraj.net:/usr/obj/sys/arch/i386/compile/UMRAH
> total memory = 247 MB
> avail memory = 236 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
> BIOS32 rev. 0 found at 0xf0210
> PCI BIOS rev. 2.1 found at 0xf0200
> pcibios: config mechanism [1][x], special cycles [x][x], last bus 1
> PCI IRQ Routing Table rev. 1.0 found at 0xfb9d0, size 192 bytes (10  
> entries)
> PCI Interrupt Router at 000:07:0 (Acer Labs M1543 PCI-ISA Bridge  
> compatible)
> ------------------------------------------
>   device vendor product pin PIRQ IRQ stage
> ------------------------------------------
> 000:06:0 0x10b9 0x5451   A  0x07  11  0    already assigned
> 000:10:0 0x8086 0x1229   A  0x01  11  0    already assigned
> 000:19:0 0x1217 0x6972   A  0x03  11  0    already assigned
> ------------------------------------------
> mainbus0 (root)
> pci_addr_fixup: 000:19:0 0x1217 0x6972 new address 0x0f800000
> cpu0 at mainbus0: (uniprocessor)
> cpu0: Intel Pentium III (686-class), 697.47 MHz, id 0x68a
> cpu0: features 387f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR>
> cpu0: features 387f9ff<PGE,MCA,CMOV,PAT,PSE36,PN,MMX>
> cpu0: features 387f9ff<FXSR,SSE>
> cpu0: I-cache 16 KB 32B/line 4-way, D-cache 16 KB 32B/line 4-way
> cpu0: L2 cache 256 KB 32B/line 8-way
> cpu0: ITLB 32 4 KB entries 4-way, 2 4 MB entries fully associative
> cpu0: DTLB 64 4 KB entries 4-way, 8 4 MB entries 4-way
> cpu0: serial number 0000-068a-0003-e1a6-4891-6365
> cpu0: 8 page colors
> 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: Acer Labs product 0x1621 (rev. 0x01)
> agp at pchb0 not configured
> ppb0 at pci0 dev 1 function 0: Acer Labs product 0x5247 (rev. 0x01)
> pci1 at ppb0 bus 1
> pci1: i/o space, memory space enabled
> vga1 at pci1 dev 0 function 0: Trident Microsystems product 0x8620  
> (rev. 0x5d)
> wsdisplay0 at vga1 kbdmux 1: console (80x25, vt100 emulation)
> wsmux1: connecting to wsdisplay0
> autri0 at pci0 dev 6 function 0: Acer Labs M5451 AC-Link Controller  
> Audio Device (rev. 0x01)
> autri0: interrupting at irq 11
> autri0: ac97: Avance Logic ALC200/ALC201 codec; headphone, 18 bit  
> DAC, 18 bit ADC, Realtek 3D
> audio0 at autri0: full duplex, mmap, independent
> midi0 at autri0: 4DWAVE MIDI UART
> pcib0 at pci0 dev 7 function 0
> pcib0: Acer Labs M1543 PCI-ISA Bridge (rev. 0x00)
> fxp0 at pci0 dev 10 function 0: i82550 Ethernet, rev 13
> fxp0: interrupting at irq 11
> fxp0: Ethernet address 00:00:e2:56:c1:da
> inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 4
> inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
> aceride0 at pci0 dev 16 function 0
> aceride0: Acer Labs M5229 UDMA IDE Controller (rev. 0xc3)
> aceride0: bus-master DMA support present
> aceride0: primary channel configured to compatibility mode
> aceride0: primary channel interrupting at irq 14
> atabus0 at aceride0 channel 0
> aceride0: secondary channel configured to compatibility mode
> aceride0: secondary channel interrupting at irq 15
> atabus1 at aceride0 channel 1
> Acer Labs M7101 Power Management Controller (miscellaneous bridge)  
> at pci0 dev 17 function 0 not configured
> cbb0 at pci0 dev 19 function 0: O2 Micro OZ6912/OZ6972 PCI-CardBus  
> Bridge (rev. 0x00)
> ohci0 at pci0 dev 20 function 0: Acer Labs M5237 USB 1.1 Host  
> Controller (rev. 0x03)
> ohci0: interrupting at irq 10
> ohci0: OHCI version 1.0, legacy support
> usb0 at ohci0: USB revision 1.0
> uhub0 at usb0
> uhub0: Acer Labs OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
> uhub0: 4 ports with 4 removable, self powered
> isa0 at pcib0
> lpt2 at isa0 port 0x3bc-0x3bf irq : polled
> 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
> pms0 at pckbc0 (aux slot)
> pckbc0: using irq 12 for aux slot
> wsmouse0 at pms0 mux 0
> attimer0 at isa0 port 0x40-0x43: AT Timer
> pcppi0 at isa0 port 0x61
> midi1 at pcppi0: PC speaker
> sysbeep0 at pcppi0
> isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
> npx0 at isa0 port 0xf0-0xff
> npx0: using exception 16
> pcppi0: attached to attimer0
> isapnp0: no ISA Plug 'n Play devices found
> cbb0: interrupting at irq 11
> cardslot0 at cbb0 slot 0 flags 0
> cardbus0 at cardslot0: bus 2
> pcmcia0 at cardslot0
> apm0 at mainbus0: Advanced Power Management BIOS
> apm0: Power Management spec V1.2
> timecounter: Timecounter "TSC" frequency 697499850 Hz quality 800
> timecounter: selected timecounter "TSC" frequency 697499850 Hz  
> quality 800
> timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
> Kernelized RAIDframe activated
> com3 at pcmcia0 function 0: <Billionton V92 Fax Modem, FM56C-BFS,  
> 5.41>
> cfe->iomask = 10
> cfe->iospace[0].length = 8
> com3: ns16550a, working fifo
> umass0 at uhub0 port 1 configuration 1 interface 0
> umass0: SanDisk Corporation Cruzer Micro, rev 2.00/0.10, addr 2
> umass0: using SCSI over Bulk-Only
> scsibus0 at umass0: 2 targets, 1 lun per target
> sd0 at scsibus0 target 0 lun 0: <SanDisk, Cruzer Micro, 0.1> disk  
> removable
> sd0: 488 MB, 992 cyl, 16 head, 63 sec, 512 bytes/sect x 1000944  
> sectors
> wd0 at atabus0 drive 0: <FUJITSU MHT2040AS>
> wd0: drive supports 16-sector PIO transfers, LBA addressing
> wd0: 38154 MB, 77520 cyl, 16 head, 63 sec, 512 bytes/sect x  
> 78140160 sectors
> wd0: 32-bit data port
> wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/ 
> 100)
> wd0(aceride0:0:0): using PIO mode 4, Ultra-DMA mode 4 (Ultra/66)  
> (using DMA)
> atapibus0 at atabus1: 2 targets
> cd0 at atapibus0 drive 0: <CD-224E, , 2.7B> cdrom removable
> cd0: 32-bit data port
> cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/ 
> 33)
> cd0(aceride0:1:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33)  
> (using DMA)
> sd0(umass0:0:0:0): no door lock
> findroot: unable to read block 25114384
> boot device: wd0
> root on wd0a dumps on wd0b
> root file system type: ffs
> 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)
> uvm_fault(0xc06c7900, 0x500f000, 1) -> 0xe
> syncing disks... 9 9 9 9 9 9 9 9 9 9 9 7 done
> unmounting file systems... done
> rebooting...
> 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 3.99.21 (UMRAH) #0: Sat Jun 10 20:55:05 UTC 2006
> 	jr0@think.makhraj.net:/usr/obj/sys/arch/i386/compile/UMRAH
> total memory = 247 MB
> avail memory = 236 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
> BIOS32 rev. 0 found at 0xf0210
> PCI BIOS rev. 2.1 found at 0xf0200
> pcibios: config mechanism [1][x], special cycles [x][x], last bus 1
> PCI IRQ Routing Table rev. 1.0 found at 0xfb9d0, size 192 bytes (10  
> entries)
> PCI Interrupt Router at 000:07:0 (Acer Labs M1543 PCI-ISA Bridge  
> compatible)
> ------------------------------------------
>   device vendor product pin PIRQ IRQ stage
> ------------------------------------------
> 000:06:0 0x10b9 0x5451   A  0x07  11  0    already assigned
> 000:10:0 0x8086 0x1229   A  0x01  11  0    already assigned
> 000:19:0 0x1217 0x6972   A  0x03  11  0    already assigned
> ------------------------------------------
> mainbus0 (root)
> pci_addr_fixup: 000:19:0 0x1217 0x6972 new address 0x0f800000
> cpu0 at mainbus0: (uniprocessor)
> cpu0: Intel Pentium III (686-class), 697.49 MHz, id 0x68a
> cpu0: features 387f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR>
> cpu0: features 387f9ff<PGE,MCA,CMOV,PAT,PSE36,PN,MMX>
> cpu0: features 387f9ff<FXSR,SSE>
> cpu0: I-cache 16 KB 32B/line 4-way, D-cache 16 KB 32B/line 4-way
> cpu0: L2 cache 256 KB 32B/line 8-way
> cpu0: ITLB 32 4 KB entries 4-way, 2 4 MB entries fully associative
> cpu0: DTLB 64 4 KB entries 4-way, 8 4 MB entries 4-way
> cpu0: serial number 0000-068a-0003-e1a6-4891-6365
> cpu0: 8 page colors
> 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: Acer Labs product 0x1621 (rev. 0x01)
> agp at pchb0 not configured
> ppb0 at pci0 dev 1 function 0: Acer Labs product 0x5247 (rev. 0x01)
> pci1 at ppb0 bus 1
> pci1: i/o space, memory space enabled
> vga1 at pci1 dev 0 function 0: Trident Microsystems product 0x8620  
> (rev. 0x5d)
> wsdisplay0 at vga1 kbdmux 1: console (80x25, vt100 emulation)
> wsmux1: connecting to wsdisplay0
> autri0 at pci0 dev 6 function 0: Acer Labs M5451 AC-Link Controller  
> Audio Device (rev. 0x01)
> autri0: interrupting at irq 11
> autri0: ac97: Avance Logic ALC200/ALC201 codec; headphone, 18 bit  
> DAC, 18 bit ADC, Realtek 3D
> audio0 at autri0: full duplex, mmap, independent
> midi0 at autri0: 4DWAVE MIDI UART
> pcib0 at pci0 dev 7 function 0
> pcib0: Acer Labs M1543 PCI-ISA Bridge (rev. 0x00)
> fxp0 at pci0 dev 10 function 0: i82550 Ethernet, rev 13
> fxp0: interrupting at irq 11
> fxp0: Ethernet address 00:00:e2:56:c1:da
> inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 4
> inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
> aceride0 at pci0 dev 16 function 0
> aceride0: Acer Labs M5229 UDMA IDE Controller (rev. 0xc3)
> aceride0: bus-master DMA support present
> aceride0: primary channel configured to compatibility mode
> aceride0: primary channel interrupting at irq 14
> atabus0 at aceride0 channel 0
> aceride0: secondary channel configured to compatibility mode
> aceride0: secondary channel interrupting at irq 15
> atabus1 at aceride0 channel 1
> Acer Labs M7101 Power Management Controller (miscellaneous bridge)  
> at pci0 dev 17 function 0 not configured
> cbb0 at pci0 dev 19 function 0: O2 Micro OZ6912/OZ6972 PCI-CardBus  
> Bridge (rev. 0x00)
> ohci0 at pci0 dev 20 function 0: Acer Labs M5237 USB 1.1 Host  
> Controller (rev. 0x03)
> ohci0: interrupting at irq 10
> ohci0: OHCI version 1.0, legacy support
> usb0 at ohci0: USB revision 1.0
> uhub0 at usb0
> uhub0: Acer Labs OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
> uhub0: 4 ports with 4 removable, self powered
> isa0 at pcib0
> lpt2 at isa0 port 0x3bc-0x3bf irq : polled
> 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
> pms0 at pckbc0 (aux slot)
> pckbc0: using irq 12 for aux slot
> wsmouse0 at pms0 mux 0
> attimer0 at isa0 port 0x40-0x43: AT Timer
> pcppi0 at isa0 port 0x61
> midi1 at pcppi0: PC speaker
> sysbeep0 at pcppi0
> isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
> npx0 at isa0 port 0xf0-0xff
> npx0: using exception 16
> pcppi0: attached to attimer0
> isapnp0: no ISA Plug 'n Play devices found
> cbb0: interrupting at irq 11
> cardslot0 at cbb0 slot 0 flags 0
> cardbus0 at cardslot0: bus 2
> pcmcia0 at cardslot0
> apm0 at mainbus0: Advanced Power Management BIOS
> apm0: Power Management spec V1.2
> timecounter: Timecounter "TSC" frequency 697495230 Hz quality 800
> timecounter: selected timecounter "TSC" frequency 697495230 Hz  
> quality 800
> timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
> Kernelized RAIDframe activated
> com3 at pcmcia0 function 0: <Billionton V92 Fax Modem, FM56C-BFS,  
> 5.41>
> cfe->iomask = 10
> cfe->iospace[0].length = 8
> com3: ns16550a, working fifo
> wd0 at atabus0 drive 0: <FUJITSU MHT2040AS>
> wd0: drive supports 16-sector PIO transfers, LBA addressing
> wd0: 38154 MB, 77520 cyl, 16 head, 63 sec, 512 bytes/sect x  
> 78140160 sectors
> wd0: 32-bit data port
> wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/ 
> 100)
> wd0(aceride0:0:0): using PIO mode 4, Ultra-DMA mode 4 (Ultra/66)  
> (using DMA)
> atapibus0 at atabus1: 2 targets
> cd0 at atapibus0 drive 0: <CD-224E, , 2.7B> cdrom removable
> cd0: 32-bit data port
> cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/ 
> 33)
> cd0(aceride0:1:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33)  
> (using DMA)
> boot device: wd0
> root on wd0a dumps on wd0b
> root file system type: ffs
> 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)
>
> !DSPAM:4499d56e158176395499508!
>
>
>