Stephan Uphoff wrote:
On Wed, 2005-02-09 at 03:13, Gerald Heinig wrote:
Stephan Uphoff wrote:
There are two ways using kgdb to debug a target with firewire.
The first way basically replaces the slow serial cable for
communication to the remote target gdb stub. The second way uses
the remote DMA capabilities of firewire to directly read memory
of the target WITHOUT using any debugging software/stub on the
target. (Think remote core file)
Greg Lehey wrote a nice kernel debugging tutorial that explains
both types of firewire debugging.
http://www.lemis.com/grog/Papers/Debug-tutorial/tutorial.pdf
This should get you started with only minor adjustments
(gdb->kgdb) .
This is actually the paper I'm using. I've followed the
instructions on both methods, but I can't get it to work. The
direct machine-machine connection is fine (ie. the one with
dconschat). It's the kgdb connection that doesn't work. I presume
it worked out of the box for you then?
Once I linked in dcons, dcons_crom and firewire into the kernel
everything worked. (I think only dcons is really needed - maybe a
link set issue?) I only used the gdb stub method.
Can you send me your dmesg? (After you linked the dcons stuff into
the kernel)
Hi Stephan,
here's my dmesg:
Copyright (c) 1992-2004 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 5.3-RELEASE #0: Thu Feb 10 11:28:00 CET 2005
[EMAIL PROTECTED]:/usr/src/sys/i386/compile/FIREWIRE
MPTable: <DELL Opti GX260 >
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 2.00GHz (2000.04-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0xf27 Stepping = 7
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,
CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
real memory = 535236608 (510 MB)
avail memory = 514101248 (490 MB)
ioapic0: Changing APIC ID to 1
ioapic0: Assuming intbase of 0
ioapic0 <Version 2.0> irqs 0-23 on motherboard
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <MPTable Host-PCI bridge> pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
pci0: <display> at device 2.0 (no driver attached)
uhci0: <Intel 82801DB (ICH4) USB controller USB-A> port 0xff80-0xff9f
irq 16 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <Intel 82801DB (ICH4) USB controller USB-A> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801DB (ICH4) USB controller USB-B> port 0xff60-0xff7f
irq 19 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <Intel 82801DB (ICH4) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2: <Intel 82801DB (ICH4) USB controller USB-C> port 0xff40-0xff5f
irq 18 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
usb2: <Intel 82801DB (ICH4) USB controller USB-C> on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
pci0: <serial bus, USB> at device 29.7 (no driver attached)
pcib1: <MPTable PCI-PCI bridge> at device 30.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <display, VGA> at device 7.0 (no driver attached)
fwohci0: <VIA Fire II (VT6306)> port 0xec80-0xecff mem
0xff8fb800-0xff8fbfff irq 17 at device
8.0 on pci1
fwohci0: OHCI version 1.0 (ROM=1)
fwohci0: No. of Isochronous channels is 8.
fwohci0: EUI64 00:01:08:00:37:01:c3:be
fwohci0: Phy 1394a available S400, 3 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
dcons_crom0: <dcons configuration ROM> on firewire0
dcons_crom0: bus_addr 0x1f2fc000
fwe0: <Ethernet over FireWire> on firewire0
if_fwe0: Fake Ethernet address: 02:01:08:01:c3:be
fwe0: Ethernet address: 02:01:08:01:c3:be
fwe0: if_start running deferred for Giant
sbp0: <SBP-2/SCSI over FireWire> on firewire0
fwohci0: Initiate bus reset
fwohci0: node_id=0xc000ffc1, gen=1, CYCLEMASTER mode
firewire0: 2 nodes, maxhop <= 1, cable IRM = 1 (me)
firewire0: bus manager 1 (me)
pci1: <network, ethernet> at device 9.0 (no driver attached)
pci1: <network, ethernet> at device 10.0 (no driver attached)
em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port
0xec40-0xec7f mem 0xff8c0000-0xff8dffff irq 18 at device 12.0 on pci1
em0: Ethernet address: 00:08:74:f5:ca:44
em0: Speed:N/A Duplex:N/A
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH4 UDMA100 controller> port
0xffa0-0xffaf,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 31.1 on pci0
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
pci0: <multimedia, audio> at device 31.5 (no driver attached)
cpu0 on motherboard
orm0: <ISA Option ROMs> at iomem
0xc9800-0xcbfff,0xc8000-0xc97ff,0xc0000-0xc7fff on isa0
pmtimer0 on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0
fdc0: <Enhanced floppy controller> at port 0x3f0-0x3f5 irq 6 drq 2 on isa0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 bytes threshold
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
unknown: <PNP0501> can't assign resources (port)
unknown: <PNP0400> can't assign resources (port)
unknown: <PNP0700> can't assign resources (port)
unknown: <PNP0f13> can't assign resources (irq)
unknown: <PNP0303> can't assign resources (port)
Timecounter "TSC" frequency 2000036632 Hz quality 800
Timecounters tick every 10.000 msec
ad0: 39205MB <Maxtor 6E040L0/NAR61590> [79656/16/63] at ata0-master UDMA100
firewire0: New S400 device ID:0001080038022bcf
Mounting root from ufs:/dev/ad0s4a
em0: Link is up 100 Mbps Full Duplex
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