> >
> > Regarding the vmcore-dmesg failed, it's likely you are hitting this
> issue:
> >
> > http://lists.infradead.org/pipermail/kexec/2012-July/006602.html
> >
> > Can you try to download an compile the latest kexec tools from
> > git://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git
> >
> 
> I did build/install kexec-tools-2.0.12.
>

I think even though I installed kexec-tools-2.0.12, my system wasn't using the
correct kexec.  I fixed that and installed kexec-tools from the git repo and now
I get a dmesg.txt, but still no vmcore dump:

...
/dev/sda2: clean, 1262767/6291456 files, 19581451/25165824 blocks
EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts:
Free memory/Total memory (free %): 187160 / 238580 ( 78.4475 )
Loading SELINUX policy
SELinux:  Disabled at runtime.
audit: type=1404 audit(1466759899.842:2): selinux=0 auid=4294967295
ses=4294967295
Policy load failed, a relabel will be required on reboot
Saving vmcore-dmesg.txt
Saved vmcore-dmesg.txt
umount: can't umount /mnt/selinux: Invalid argument
sd 6:0:0:0: [sdb] Synchronizing SCSI cache
sd 4:0:0:0: [sda] Synchronizing SCSI cache
reboot: Restarting system
reboot: machine restart
...

I've tried 3 different machines and they all fail to generate the vmcore.
Attached is the full console output.   Also attached is the kernel .config file.

Does anyone have any ideas?

Thanks,

Steve.