Huerlimann Heinz wrote: > I would like to use this situation to get into linux diagnosing and > debugging and hopefully fix the problem. Unfortunately I don't know > how to start. > Can anyone tell me more about methods for achieving this task.
In the /usr/src/linux/drivers/s390/net directory, you'll find two files: iucv.c and netiucv.c - iucv.c is the kernel part that provides the iucv api's. - netiucv.c is the tcp/ip iucv driver. Both files have a line '#undef DEBUG' that you can replace by '#define DEBUG'. Then rebuild the kernel and you'll get lots of debug messages. Ronald van der Laan
