Re: Sudden reboot

[Jan Danielsson <jan.m.danielsson%gmail.com@localhost>]

On 03/12/13 08:49, David Holland wrote:
[---]
>  > Dec  3 03:15:46 aria syslogd[188]: restart
>  > Dec  3 03:15:46 aria /netbsd: uvm_fault(0xffffffff8071b4d8, 0x0, 1) -> e
>  > Dec  3 03:15:46 aria /netbsd: fatal page fault in supervisor mode
>  > Dec  3 03:15:46 aria /netbsd: trap type 6 code 0 rip ffffffff8031162f cs
>  > 8 rflags 10283 cr2  60 cpl 4 rsp fffffe8004cf9b98
>  > Dec  3 03:15:46 aria /netbsd: panic: trap
>  > Dec  3 03:15:46 aria /netbsd: cpu1: Begin traceback...
[---]
>  >    Trap 6 = illegal op-code? Should I start worrying about broken RAM
>  > modules?
> 
> from sys/arch/x86/include/trap.h:
> #define T_PAGEFLT        6      /* page fault */
> 
> and %cr2 contains 60, so in all probability it's just a null pointer
> dereference.

   Oh; thanks.

> If you use objdump -d or nm -n or gdb or whatever to find the code
> that's at 0xffffffff8031162f in your kernel, you'll probably get a
> fairly good idea of what broke.

   A lot of pf_state_* around there, so it looks like packet filter is
croaking. Ugh.. pf seems slightly broken for other reasons as well
(rules are ignored sometimes), and I know others have mentioned it in
the past.

   Do I file a PR?

   /Jan