Comment # 17 on bug 947816 from Mike Galbraith

(In reply to Mike Galbraith from comment #16)
> (In reply to Mike Galbraith from comment #15)
> > (In reply to Takashi Iwai from comment #13)
> > > I confirmed that kdump worked on Leap RC1.  So let's close this bug for now.
> > 
> > It must have been reborn, because when running an SLES kernel, kdump says
> > key rejected by service in up to the minute leap here.  Thanks to finding
> > this bug, installing kdump from factory fixed me up.
> 
> And it is still broken:
> 
> homer:/root # rpm -q kdump
> kdump-0.8.15-24.1.x86_64
> homer:/root # systemctl status kdump
> kdump.service - Load kdump kernel on startup
>    Loaded: loaded (/usr/lib/systemd/system/kdump.service; enabled)
>    Active: active (exited) since Wed 2016-09-28 07:41:32 CEST; 9min ago
>   Process: 4061 ExecStop=/lib/kdump/unload.sh (code=exited, status=0/SUCCESS)
>   Process: 4066 ExecStart=/lib/kdump/load.sh (code=exited, status=0/SUCCESS)
>  Main PID: 4066 (code=exited, status=0/SUCCESS)
> 
> Sep 28 07:41:32 homer load.sh[4066]: kexec_file_load failed: Key was
> rejected by service
> Sep 28 07:41:32 homer systemd[1]: Started Load kdump kernel on startup.
> 
> (/me builds factory kdump for leap-42.1)
> 
> homer:/root # rpm -q kdump
> kdump-0.8.15-99.x86_64
> homer:/root # systemctl status kdump
> kdump.service - Load kdump kernel on startup
>    Loaded: loaded (/usr/lib/systemd/system/kdump.service; enabled)
>    Active: active (exited) since Wed 2016-09-28 07:53:18 CEST; 53s ago
>   Process: 12280 ExecStop=/etc/init.d/boot.kdump stop (code=exited,
> status=0/SUCCESS)
>   Process: 12288 ExecStart=/etc/init.d/boot.kdump start (code=exited,
> status=0/SUCCESS)
>  Main PID: 12288 (code=exited, status=0/SUCCESS)
>    CGroup: /system.slice/kdump.service
> 
> Sep 28 07:52:16 homer boot.kdump[12288]: Loading kdump
> Sep 28 07:53:18 homer boot.kdump[12288]: ..done
> Sep 28 07:53:18 homer systemd[1]: Started Load kdump kernel on startup.
> homer:/root #

And with this kdump version, kdump/crash works fine through 4.6 kernels, SLE,
SLERT or homebrew.  After that, makedumpfile ceases to function, and taking
makedumpfile from factory helps not at all.. but at least things work properly
until 4.7.