Re: Stacktrace dump

[Tomas Hruby]

Hi,

On Tue, Jun 5, 2012 at 10:37 AM, Ambarisha B <b.amb...@gmail.com> wrote:
> Hi,
>
> I was testing the lwip code from their trunk with minix. Everything
> seems to work out fine. But a couple of times, I got a stacktrace
> dumped onto my console(just out of the blue) and the system hanged.You
> can find a screenshot of the VM at
> http://imageshack.us/photo/my-images/443/problem1ef.png/
>
> What does this mean? How do I make sense of it? Any pointer would help.

Seems like you hit an assert somewhere (panic). The numbers are calls
on the stack.

When debugging, it is best to enable serial console. Add cttyline=0 to
the boot command line in /boot.cfg or its local version.

You can get more information on the serial, for instance about current
state of the processes if you pres '1' or about the scheduling queues
if you press '2'.

It is likely that you are going to se more interesting information
once on serial once you hit the panic again. Normally, panics tell you
file/line where the assert/panic is. In other cases or a random fault,
you can use the stacktrace utility to see the call stack of the
binary. Copy-n-paste the stack trace from the serial, reboot and use
the stacktrace <binary> <stark trace>

T.

[Ambarisha B]

Hi,

I was testing the lwip code from their trunk with minix. Everything
seems to work out fine. But a couple of times, I got a stacktrace
dumped onto my console(just out of the blue) and the system hanged.You
can find a screenshot of the VM at
http://imageshack.us/photo/my-images/443/problem1ef.png/

What does this mean? How do I make sense of it? Any pointer would help.

Cheers
Ambarish