Comment # 20 on bug 947816 from Mike Galbraith

(In reply to Mike Galbraith from comment #19)
> (In reply to Takashi Iwai from comment #18)
> > (In reply to Mike Galbraith from comment #16)
> > > (/me builds factory kdump for leap-42.1)
> > 
> > Are you sure that the result is from your TW version kdump?
> 
> If you mean 'factory', yes.
>  
> > The kdump included in Leap contains the patches verifying signature. Are you
> > testing with your own build kernel or the official SLE kernel with the SUSE
> > key signed?
> 
> All kernels run here are locally built.
>  
> > If you're using the self-made kernel, turning off CONFIG_KEXEC_VERIFY_SIG
> > should make things working.  Or use TW version kdump that has no signature
> > check.
> 
> My local mainline/stable configs do not contain CONFIG_KEXEC_VERIFY_SIG,
> only SLE12/SLE12-RT kernels do.

Perhaps relevant...

/etc/sysconfig/kdump:
KDUMP_KERNELVER="4.4.20-smp"

That's a local config kernel.