Panic at boot with current kernel

Hello,

this might be completely unrelated to macppc, but I get a
panic on a
PowerBook G4 during boot with a GENERIC kernel built from
today's
(Monday, around 10:00 UTC) sources.  Anyway, I get the
following (the
text from the debugger is copyed by hand, so there might be
errors):

[...]
gem0 at pci2 dev 15 function 0: Apple Computer GMAC Ethernet
(rev. 0x80)
gem0: interrupting at irq 41
gem0: Ethernet address 00:0d:93:61:d8:4c, 10KB RX fifo, 4KB
TX fifo
makphy0 at gem0 phy 0: Marvell 88E1111 Gigabit PHY, rev. 2
makphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX,
1000baseT, 1000baseT-FDX, auto
trap: Kernel write DSI trap  0x7c3042a6 by 0x4441a4
(DSISR 0x42000000, err=14), lr 0x444194
panic: trap
stopped in pid 0.1 (swapper) at 0x425538:

Since the keyboard it not yet attached at this point, I
cannot get a
backtrace, but gdb gives the following for the addresses:

0x4441a4<softint_schedule+148>: 0x93e90000
0x444194<softint_schedule+132>: 0x38000000
0x425538<cpu_Debugger+16>: 0x80010014

(In case it helps, the output from makphy is followed by

fwohci0: node_id=0xc800ffc0, gen=2, CYCLEMASTER mode
ieee1394if0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
ieee1394if0: bus manager 0 (me)

on older kernels).

Any clues how to figure out what goes wrong and where?

-- Johan

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Hello,

On Oct 2, 2006, at 17:23, Johan Wallén wrote:

> this might be completely unrelated to macppc, but I get
a panic on a
> PowerBook G4 during boot with a GENERIC kernel built
from today's
> (Monday, around 10:00 UTC) sources.  Anyway, I get the
following (the
> text from the debugger is copyed by hand, so there
might be errors):
>
> [...]
> gem0 at pci2 dev 15 function 0: Apple Computer GMAC
Ethernet (rev. 
> 0x80)
> gem0: interrupting at irq 41
> gem0: Ethernet address 00:0d:93:61:d8:4c, 10KB RX fifo,
4KB TX fifo
> makphy0 at gem0 phy 0: Marvell 88E1111 Gigabit PHY,
rev. 2
> makphy0: 10baseT, 10baseT-FDX, 100baseTX,
100baseTX-FDX, 1000baseT, 
> 1000baseT-FDX, auto
> trap: Kernel write DSI trap  0x7c3042a6 by 0x4441a4
(DSISR 
> 0x42000000, err=14), lr 0x444194
> panic: trap
> stopped in pid 0.1 (swapper) at 0x425538:
>
> Since the keyboard it not yet attached at this point, I
cannot get a
> backtrace, but gdb gives the following for the
addresses:
>
> 0x4441a4<softint_schedule+148>: 0x93e90000
> 0x444194<softint_schedule+132>: 0x38000000
> 0x425538<cpu_Debugger+16>: 0x80010014

That's fallout from the switch to timecounter support - had
the same on 
my iBook and just committed a fix. No idea why it didn't
bite me on my 
other machines.

have fun
Michael
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