Subject: Re: kernel panic with multiprocessing kernel
To: Rui Paulo <rpaulo@netbsd.org>
From: Kjell Konis <konis@stats.ox.ac.uk>
List: port-macppc
Date: 09/04/2005 11:40:21
Hello,

I finally got around to trying the -current kernel and it still  
panics.  Here is the trace (recall that the kernel doesn't panic when  
the output-device is set to ttya so I had to type this in - there may  
be some typos):

...
<startup text>
...

NetBSD/macppc (PM9500) (ttyE0)

login: kjell
Password:
mp_save_fpu_proc{1} pid = 317.1, fpcpu->ci_cpuid = 0
panic: mp_save_fpu_proc
Stopped in pid 317.1 (login) at netbsd:cpu_Debugger+0x10:      lwz    
r0, r1 0
x14
bd(1)> trace
0xd5167e00: at panic+x19c
0xd5167e90: at mp_save_fpu_lwp+0xec
0xd5167eb0: at save_fpu_lwp+0x70
0xd5167ec0: at trap+0x94c
0xd5167f40: user FPU trap by 0xefca4530: srr1=0xd032
             r1=0xffffd0e0 cr=0x24004048 xer=0 ctr=xefca1fe8


The machine is a powermac 9500 with a 2 x 200 mhz ppc604 daughtercard  
and has NetBSD 2.0.2 installed.

Would it be worthwhile to file an official problem report?

Also, as a work around, is it possible to change the input-device and  
output-device after the kernel is booted?

Thanks

Kjell

On 27 Aug 2005, at 07:38, Rui Paulo wrote:

> On 2005.08.27 07:36:43 +0000, Kjell Konis wrote:
> | I am running 2.0.2.
>
> Can you try a -current kernel ?
>
>         -- Rui Paulo
>