I followed the instructions here: https://fedoraproject.org/wiki/How_to_use_kdump_to_debug_kernel_crashes After booting with crashkernel=128M, starting the kdump service which is running: # kdumpctl status Kdump is operational I enabled sysrq: echo 1 > /proc/sys/kernel/sysrq Then at the console I hit: AltGr + PrtSc + c and the kernel does crash with a NULL pointer dereference as expected, but kdump never runs. The only thing I could do is hard-reboot. Nothing is written in /var/crash. (I also disabled SELinux for good measure, just in case that could be it, but it makes no difference.) Rich. kernel 4.8.10-300.fc25.x86_64 kexec-tools-2.0.13-7.fc25.1.x86_64 -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://people.redhat.com/~rjones/virt-top _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
