Re: [rtl] kernel crashes with RT-Linux

[David Schleef <ds@stm.lbl.gov>]

On Fri, Oct 09, 1998 at 05:28:08PM +0200, Jochen Kuepper wrote:
> Dear All,
> 
> for a few days now I do have some trouble running my RTL daq modules and the GUI
> frontend (called khidaq). All I get regarding the crash is the following output
> to the syslogd out-file. The system seems to be stable still after the oops,
> just my app doesn't work any more. I don't know wether it's the app itself, my
> RTL modules, the standard RTL modules or something else. 
> 
> So can someone explain what this trace down there means ?
> Where do I get information regarding these messages, how can I learn to
> understand them ?


There is some mediocre documentation in /usr/src/linux/Documentation.
Basically, you need to compile ksymoops, which is provided with the kernel
source in the scripts/ directory.  Ksymoops takes the Oops message and
your /boot/System.map, plus any other symbol files you have, and translates
the addresses into symbols (i.e., functions).  This way, you can determine
which function was executing when the oops happened.  Unfortunately, this
is seldom the function that has the bad code.  It also teaches you to write
small functions.

To generate a symbol map for a module, use "insmod -m" when you install it.



dave...



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