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Date: Thu, 15 Mar 2018 15:04:30 -0400
From: Pavel Tatashin <pasha.tatashin@oracle.com>
Subject: Re: [PATCH v2 1/2] mm: uninitialized struct page poisoning sanity
 checking
Message-ID: <20180315190430.o3vs7uxlafzdwgzd@xakep.localdomain>
References: <20180131210300.22963-1-pasha.tatashin@oracle.com>
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To: Sasha Levin <Alexander.Levin@microsoft.com>
Cc: "steven.sistare@oracle.com" <steven.sistare@oracle.com>, "daniel.m.jordan@oracle.com" <daniel.m.jordan@oracle.com>, "akpm@linux-foundation.org" <akpm@linux-foundation.org>, "mgorman@techsingularity.net" <mgorman@techsingularity.net>, "mhocko@suse.com" <mhocko@suse.com>, "linux-mm@kvack.org" <linux-mm@kvack.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>, "vbabka@suse.cz" <vbabka@suse.cz>, "bharata@linux.vnet.ibm.com" <bharata@linux.vnet.ibm.com>

> 
> Attached the config. It just happens on boot.

Hi Sasha,

I have tried unsuccessfully to reproduce the bug in qemu with 20G RAM,
and 8 CPUs.

Patch "mm: uninitialized struct page poisoning sanity" should be improved
to make dump_page() to detect poisoned struct page, and simply print hex
in such case. I will send an updated patch later.

How do you run this on Microsoft hypervisor? Do I need Windows 10 for
that?

BTW, I am going to be on vacation for the next two week (going to Israel),
so I may not be able to response quickly.

Thank you,
Pasha