panic: vm_page_free_prep: freeing mapped page

[Mark Johnston]

On Mon, Jul 15, 2019 at 07:53:43AM -0500, Larry Rosenman wrote:
> I got another panic overnight while my bacula backups were running.  
> It's
> probably postgres again.
> 
> Mark,
>     I've uploaded the dump/core.txt, info file to the same place on 
> freefall (*17*).
> 
> What else can I provide to help find this bug and eradicate it.

Just to follow up, the panic should be resolved by r350005.