This iso doesn't have debugging built into it now.   We recompiled the
ISO many times and was meant for a specific test case, not for a
general deployment.

On 5/28/06, Molle Bestefich <[EMAIL PROTECTED]> wrote:
Chris Buechler wrote:
> This isn't something I have the time to work on right now, but I'll give
> you as many pointers as I can (which isn't much when it comes to kernel
> debugging) if you want to dig into it.

Thanks!

> Scott built this iso for debugging an issue on a Dell 2850 server, but
> it should work equally well for debugging on anything.  Should just be a
> standard image with the debug tools.

Thanks!
Can't find any such debugging tools, though.
find / -name ddb
find / -name gdb
both yield nothing.


> As far as how to go about doing this, I recommend:
>
> http://www.lemis.com/grog/Papers/Debug-tutorial/

Thanks!

> Once you get to the debug prompt, the main thing, I believe, is to run
> 'bt'

It doesn't seem to break into a debugger when it panics - perhaps
debug_on_panic is not set per default on the kernel Scott made.

I'm assuming here that one can set BSD sysctl variables to some value
when making a kernel, is that right?

I've tried poking sequences like \n~# and +++++ onto the serial port,
but it never responds with a debugger :-/..

(I hope the debugger is in-kernel, because it never gets as far as
initializing the disk, so won't help much if it's userland.)

More hints? :)

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