Subject: Re: kernel panic
To: Jason R Thorpe <thorpej@wasabisystems.com>
From: Kamal Prasad <kamalpr@yahoo.com>
List: tech-kern
Date: 07/15/2002 14:10:06
>
--------------------------------------------------------
>  > 0xe9b9ad00: at panic+1b0
>  > 0xe9b9adb0: at pmap_pvo_to_pte+1c4
>  > 0xe9b9ade0: at pmap_pvo_remove+5c
>  > 0xe9b9ae00: at pmap_page_protect+a4
> 
> Going to assume this is on PowerPC. 
yes -it is powerpc.

> What was the
> panic message,
> exactly?  

panic: pmap_pvo_to_pte: pvo 0x24be640: has invalid pte
0xf63710 in pmap_pteg_table but valid in pvo
Stopped in pid 9 (reaper) at    cpu_Debugger+0x18:    
 lwz     r1

>There are a few in that routine.
we've had to add a couple of lines [I think bat
registers] to enable 1GB support on our system.
so, Im not sure if this is something  you will see on
a desktop with say 128MB of memory.
in either case, I would appreciate if I can get some
hints on how to fix this problem.
thanks
-kamal

> 
>  > 0xe9b9ae30: at uvm_anfree+1f0
>  > 0xe9b9ae50: at amap_wipeout+120
>  > 0xe9b9ae80: at amap_unref+4c
>  > 0xe9b9aea0: at uvm_map_unreference_amap+54
>  > 0xe9b9aec0: at uvm_unmap_detach+78
>  > 0xe9b9aef0: at uvmspace_free+a0
>  > 0xe9b9af10: at uvm_exit+2c
>  > 0xe9b9af30: at reaper+cc
>  > 0xe9b9af50: at fork_trampoline+10
>  > -------------------------------------------------
>  > if anyone knows the problem/fix to this, pl. let
> me
>  > know.
>  > thanks
>  > -kamal
>  > 
>  > 
>  >
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> 
> -- 
>         -- Jason R. Thorpe
<thorpej@wasabisystems.com>


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