Hello All,
I have got an interesting lock up situation using 2.6.21.5 kernel
together with rt15 patch. I'll try also with 22.1 before that i wanted
to check if anybody else has faced it.  

I have one application communicating with a kernel driver. A character
driver has been implemented as an interface. The situation is a classic
provider-consumer case. Kernel driver provides data and application
consumes it. I have difficulties with triggering the application. 


The provider receives a frame from the network and feeds this into the
application. The proiroities are configured with the following script:

So hrtimer has the highest priority with 99 and net-rx and net-tx is
configured with 55. The application is configured for 70.

The application runs smoothly for a while and then, the computer
completely locks up. I am unable to enter any keyboard data. When i
unplug the network cable, i see the message that it has been
disconnected. So, the kernel driver is still alive. 

What could be the reason for this lock up. I also tried with round robin
policy. It has been much more stable but it also locks up after a while.

Thanks and regards,
Sinan.
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