Fatal Trap 12

[John Baldwin]

On Thursday 26 February 2004 07:16 am, Lutz Kittler wrote:
> Hi,
>
> last year I install FreeBSD 5.1. I updated kernel and userland regularely
> and had no problems.
> Two weeks ago I upgraded to CURRENT and the troubles began.
> After Kernel updates ( last I downloaded at 24.2.2004 ) I
> got
>
>   Fatal trap 12: page fault while in kernel mode
> 	...
>   supervisor read page not present
>   current process ( swi:8 tty:sio clock )
>
> This trap shows the same process every time and occures
> some seconds after 1 hour after booting ( uptime about 1 hr 10 seconds ).
> What can be the reason for this ?
> Only once the system runs longer than this hour,  but after 1 week I
> shutdown the system and at next boot I still had the same probem.
>
> I read about things like that in the mailing list. Is it still an open
> problem ?
>
> I wanted to build a debug kernel, but had problems because it
> takes me more than 1hour.

You need to get the message that says 'fault virtual address' as well as the 
ip.  You would also need a debug kernel for the ip to be useful.

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org