Re: Panic output

[Peter Wächtler]

[e-mail] schrieb:
> 
> During writing a driver for a PCI board I experienced the hardware
> hanging and I had to press the big red button. The hang was traced
> using a PCI analyzer and I found that the driver, loaded as a
> module, was taking a route which called panic. I changed
> /proc/sys/kernel/panic to a non zero value and the machine started
> to reboot on PCI hang. My problem is I never see any output on the
> screen or in /var/log/messages. All the stuff I have looked at in
> /usr/src/linux/Documentation suggests the messages should be
> here. I am running a 2.4.0 kernel with a SuSE 7.1 installation. At
> the hang time the system is running kde 2 and in a command
> winow I have a tail -f /var/log/messages running. The first change I
> see is the PC bios startup.
> 

First: try to start your driver from the console.
There you should see the panic message.

Then look at Documentation/serial-console.txt and hook up a serial 
console to your box