UP kernel crashes

Sepherosa Ziehau sepherosa at gmail.com
Sat May 10 20:06:07 PDT 2008

On Sun, May 11, 2008 at 1:26 AM, Matthew Dillon
<dillon at apollo.backplane.com> wrote:
> :Hi,
> :
> :Following line is printed immediately after copyrights prints:
> :panic: assertion: (newpte & VPTE_MANAGED) == 0 || m->flags & PG_MAPPED
> :in pmap_enter
> :
> :Back trace shows no function name.
> :
> :SMP kernel works without problem.
> :
> :Best Regards,
> :sephe
>    I haven't been able to reproduce this.  My UP vkernel boots ok.
>    Could you try gdb'ing your vkernel after it drops into DDB and see
>    if gdb can produce a backtrace ?

Grr, my working kernel is relatively old and panics upon vnconfig
vkernel root image.
But I built a GENERIC kernel and managed to map the backtrace address
to the function name:
begin (0xc0141beb)
mi_startup (0xc029ad61)
vm_mem_init (0xc041bfcc)
pmap_init (0xc04a1286)
kmem_alloc3 (0xc041c500)
vm_map_wire (0xc041fb10)
vm_fault_wire (0xc041b766)
vm_fault (0xc041b602)
pmap_enter (0xc04a37b3)
panic (0xc02bbd53)

Hope this will be helpful
I am uploading kernel image to leaf

Best Regards,

Live Free or Die

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