On 11/14/18, 3:41 PM, "Nadav Amit" [off-list ref] wrote:

quoted

From: David Hildenbrand
Sent: November 14, 2018 at 11:05:38 PM GMT
Subject: Re: [PATCH RFC 0/6] mm/kdump: allow to exclude pages that are logically offline


Can you share if something like this is also desired for vmware's
implementation? (I tagged this as RFC to get some more feedback)

It should in theory be as simple as adding a handful of
_SetPageOffline()/_ClearPageOffline() at the right spots.

   
Thanks, I was just suspecting it is personal ;-)

I would obviously prefer that your changes would be done on top of those
that were skipped. This patch-set sounds very reasonable to me, but I prefer
that Julien (cc’d) would also give his opinion.

    
I think this is desirable for VMware's implementation also. You are right,
dumping data that is not relevant is a waste :-) 
I haven't heard of any panic/issue due to this but that's still a good optimization.

Nadav or I could help to test that on ESX if required.

Regards,

-- 
Julien Freche