Does kdump work for you with Fedora 25?

[Richard W.M. Jones]

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