module debugging

[Valdis.Kletnieks at vt.edu]

On Fri, 21 Aug 2015 07:06:58 -0400, Salam Farhat said:

> I am using a kernel module that I modified slightly to work on my current
> kernel version. It is running on a virtual machine and on a heavy load it
> goes into an infinite loop and freezes the system. I can tell that the
> virtual machine is using 100% of its assigned cpu.

Try giving the VM a second virtual CPU, if you have only one CPU and it
gets hung sufficiently hard, the debugging stuff won't have a chance to run.

Oh, and make sure you configure your kernel for SMP.
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