The problem is not making the kernel crash, that's easy :) The issue is that no crash dump is ever generated. The whole kexec dump stuff just doesn't seem to work. I already went through all the troubleshooting tips and tricks, but it the kernel just crashed and hangs forever and only a reset works. Causing a crash with echo c > /proc/sysrq-trigger: same effect. Crash, hang, nothing...
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