11.0 RC1 kernel panic

[Rudi]

Hello list,

similar to what Jukka reported earlier in August. I have
an issue booting 11.0 RC1 on an ibook Dual USB (G3).

I have disc1 burned to physical media, Openfirmware finds
the loader, loader finds kernel, kernel boot messages scroll by,
then: apple fanfare and right back into OF.

Though kernel seams to get quite far, last thing I can read
on screen is firewire ... something.

Is there something I can try on the loader prompt? E.G. disable
certain devices to narrow down on the issue?

Attached find the dmesg from currently installed 10.1, thus you
have an idea about the hardware. I haven't tried any FreeBSD version
inbetween.

Regards,
Rudi

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FreeBSD 10.1-RELEASE #0 r274401: Wed Nov 12 01:20:13 UTC 2014
    root at releng1.nyi.freebsd.org:/usr/obj/powerpc.powerpc/usr/src/sys/GENERIC powerpc
gcc version 4.2.1 20070831 patched [FreeBSD]
cpu0: Motorola PowerPC 750 revision 2.5, 500.41 MHz
cpu0: Features 8c000000<PPC32,FPU,MMU>
cpu0: HID0 8090c0a4<EMCP,DOZE,DPM,ICE,DCE,SGE,BTIC,BHT>
real memory  = 386109440 (368 MB)
avail memory = 368656384 (351 MB)
random: <Software, Yarrow> initialized
kbd0 at kbdmux0
ofwbus0: <Open Firmware Device Tree> on nexus0
cpulist0: <Open Firmware CPU Group> on ofwbus0
cpu0: <Open Firmware CPU> on cpulist0
powermac_nvram0: <Apple NVRAM> mem 0xfff04000-0xfff07fff on ofwbus0
powermac_nvram0: bank0 generation 153, bank1 generation 154
unin0: <Apple UniNorth System Controller> mem 0xf8000000-0xf8ffffff on ofwbus0
unin0: Version 192
iichb0: <Keywest I2C controller> mem 0xf8001000-0xf8001fff irq 42 on unin0
iicbus0: <OFW I2C bus> on iichb0
pcib0: <Apple UniNorth Host-PCI bridge> mem 0xf0000000-0xf1ffffff irq 45 on ofwbus0
pci0: <OFW PCI bus> on pcib0
agp0: <Apple UniNorth AGP Bridge> on hostb0
vgapci0: <VGA-compatible display> port 0x400-0x4ff mem 0x94000000-0x97ffffff,0x90000000-0x90003fff irq 48 at device 16.0 on pci0
backlight0: <PowerBook backlight for ATI graphics> on vgapci0
vgapci0: Boot video device
pcib1: <Apple UniNorth Host-PCI bridge> mem 0xf2000000-0xf3ffffff irq 44 on ofwbus0
pci1: <OFW PCI bus> on pcib1
macio0: <Pangea I/O Controller> mem 0x80000000-0x8007ffff at device 23.0 on pci1
openpic0: <OpenPIC Interrupt Controller> mem 0x40000-0x7ffff on macio0
macgpio0: <MacIO GPIO Controller> mem 0x50-0x7f on macio0
pmuextint0: <Apple PMU99 External Interrupt> irq 47 on macgpio0
scc0: <Zilog Z8530 dual channel SCC> mem 0x13000-0x13fff,0x8400-0x84ff,0x8500-0x85ff,0x8600-0x86ff,0x8700-0x87ff irq 22,5,6,23,7,8 on macio0
uart0: <z8530, channel A> on scc0
uart1: <z8530, channel B> on scc0
pcm0: <Apple I2S Audio Controller> mem 0x10000-0x10fff,0x8000-0x80ff,0x8100-0x81ff irq 30,1,2 on macio0
pmu0: <Apple PMU99 Controller> mem 0x16000-0x17fff irq 25 on macio0
adb0: <Apple Desktop Bus> on pmu0
iichb1: <Keywest I2C controller> mem 0x18000-0x18fff irq 26 on macio0
iicbus1: <OFW I2C bus> on iichb1
tumbler0: <Texas Instruments TAS3001 Audio Codec> at addr 0x68 on iicbus1
ata0: <Apple MacIO Ultra ATA Controller> mem 0x1f000-0x1ffff,0x8a00-0x8aff irq 19,11 on macio0
ohci0: <OHCI (generic) USB controller> mem 0x80081000-0x80081fff irq 27 at device 24.0 on pci1
usbus0 on ohci0
ohci1: <OHCI (generic) USB controller> mem 0x80080000-0x80080fff irq 28 at device 25.0 on pci1
usbus1 on ohci1
pcib2: <Apple UniNorth Host-PCI bridge> mem 0xf4000000-0xf5ffffff irq 43 on ofwbus0
pci2: <OFW PCI bus> on pcib2
fwohci0: <Apple Pangea> mem 0xf5000000-0xf5000fff irq 40 at device 14.0 on pci2
fwohci0: OHCI version 1.0 (ROM=0)
fwohci0: No. of Isochronous channels is 8.
fwohci0: EUI64 00:03:93:ff:fe:42:b5:de
fwohci0: Phy 1394a available S400, 1 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
fwe0: <Ethernet over FireWire> on firewire0
if_fwe0: Fake Ethernet address: 02:03:93:42:b5:de
fwe0: Ethernet address: 02:03:93:42:b5:de
sbp0: <SBP-2/SCSI over FireWire> on firewire0
fwohci0: Initiate bus reset
fwohci0: fwohci_intr_core: BUS reset
fwohci0: fwohci_intr_core: node_id=0x00000000, SelfID Count=2, CYCLEMASTER mode
gem0: <Apple Pangea GMAC Ethernet> mem 0xf5200000-0xf53fffff irq 41 at device 15.0 on pci2
miibus0: <MII bus> on gem0
bmtphy0: <BCM5221 10/100 media interface> PHY 0 on miibus0
bmtphy0:  none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto, auto-flow
gem0: 10kB RX FIFO, 4kB TX FIFO
gem0: Ethernet address: 00:03:93:42:b5:de
sc0: <System console> on nexus0
sc0: Unknown <16 virtual consoles, flags=0x300>
Timecounter "timebase" frequency 16640000 Hz quality 0
Event timer "decrementer" frequency 16640000 Hz quality 1000
Timecounters tick every 1.000 msec
firewire0: 1 nodes, maxhop <= 0 cable IRM irm(0)  (me) 
firewire0: bus manager 0 
random: unblocking device.
usbus0: 12Mbps Full Speed USB v1.0
usbus1: 12Mbps Full Speed USB v1.0
ugen0.1: <Apple> at usbus0
uhub0: <Apple OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
ugen1.1: <Apple> at usbus1
uhub1: <Apple OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1
uhub0: 2 ports with 2 removable, self powered
uhub1: 2 ports with 2 removable, self powered
akbd0: <iBook Keyboard> at device 2 on adb0
kbd1 at akbd0
ams0: <ADB Mouse> at device 3 on adb0
ams0: ADB Mouse = 0xd (Extended Mode)
ams0: 2-button 400-dpi Touchpad
abtn0: <ADB Brightness/Volume/Eject Buttons> at device 7 on adb0
cd0 at ata0 bus 0 scbus0 target 1 lun 0
cd0: <MATSHITA DVD-ROM SR-8176 MA24> Removable CD-ROM SCSI-0 device 
cd0: 33.300MB/s transfers (UDMA2, ATAPI 12bytes, PIO 65534bytes)
cd0: cd present [295479 x 2048 byte records]
ada0 at ata0 bus 0 scbus0 target 0 lun 0
ada0: <TOSHIBA MK1017GAP A4.01 B> ATA-5 device
ada0: Serial Number 81E63671T
ada0: 66.700MB/s transfers (UDMA4, PIO 8192bytes)
ada0: 9590MB (19640880 512 byte sectors: 16H 63S/T 16383C)
ada0: Previously was known as ad0
Trying to mount root from ufs:/dev/ada0s3 [rw]...