I am running kernel 3.14.4 on Fedora 18.I am experimenting with a kernel module I am making.The module has a bug (at least one) and crashes the kernel.Sometimes I see a stack trace on my frozen screen (if I am lucky) by tailingthe kernel log (tail -f /var/log/messages).From what I see, it's a NULL pointer dereference.Since luck does not provide for productivity I configured kdump,enabled it on boot, and tested that in fact it does create a kerneldump upon a sample panic (echo c > /proc/sysrq-trigger), which I can see after it reboots through the crash utility.But when I test my module the kernel crashes and no dump is generated.What can I do better?
kdump doesn't produce core dump after buggy module is loaded
linux kernel;kernel panic;core dump