From: Nadav Amit <namit@vmware.com>
To: David Hildenbrand <david@redhat.com>, linux-mm <linux-mm@kvack.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
"devel@linuxdriverproject.org" <devel@linuxdriverproject.org>,
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xen-devel <xen-devel@lists.xenproject.org>,
Alexander Duyck <alexander.h.duyck@linux.intel.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>, Baoquan He <bhe@redhat.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
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Dave Young <dyoung@redhat.com>,
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Haiyang Zhang <haiyangz@microsoft.com>,
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Kairui Song <kasong@redhat.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
"K. Y. Srinivasan" <kys@microsoft.com>,
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Miles Chen <miles.chen@mediatek.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Omar Sandoval <osandov@fb.com>, Pavel Machek <pavel@ucw.cz>,
Pavel Tatashin <pasha.tatashin@oracle.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Stefano Stabellini <sstabellini@kernel.org>,
Stephen Hemminger <sthemmin@microsoft.com>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Vlastimil Babka <vbabka@suse.cz>,
Julien Freche <jfreche@vmware.com>
Subject: Re: [PATCH RFC 0/6] mm/kdump: allow to exclude pages that are logically offline
Date: Wed, 14 Nov 2018 22:57:51 +0000 [thread overview]
Message-ID: <8932E1F4-A5A9-4462-9800-CAC1EF85AC5D@vmware.com> (raw)
In-Reply-To: <20181114211704.6381-1-david@redhat.com>
From: David Hildenbrand
Sent: November 14, 2018 at 9:16:58 PM GMT
> Subject: [PATCH RFC 0/6] mm/kdump: allow to exclude pages that are logically offline
>
>
> Right now, pages inflated as part of a balloon driver will be dumped
> by dump tools like makedumpfile. While XEN is able to check in the
> crash kernel whether a certain pfn is actuall backed by memory in the
> hypervisor (see xen_oldmem_pfn_is_ram) and optimize this case, dumps of
> virtio-balloon and hv-balloon inflated memory will essentially result in
> zero pages getting allocated by the hypervisor and the dump getting
> filled with this data.
Is there any reason that VMware balloon driver is not mentioned?
next prev parent reply other threads:[~2018-11-14 22:58 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-14 21:16 David Hildenbrand
2018-11-14 21:16 ` [PATCH RFC 1/6] mm: balloon: update comment about isolation/migration/compaction David Hildenbrand
2018-11-14 21:17 ` [PATCH RFC 2/6] mm: convert PG_balloon to PG_offline David Hildenbrand
2018-11-14 22:23 ` Matthew Wilcox
2018-11-14 22:49 ` David Hildenbrand
2018-11-15 2:07 ` Mike Rapoport
2018-11-15 9:21 ` David Hildenbrand
2018-11-15 12:19 ` Michal Hocko
2018-11-14 21:17 ` [PATCH RFC 3/6] kexec: export PG_offline to VMCOREINFO David Hildenbrand
2018-11-15 6:19 ` Dave Young
2018-11-15 9:23 ` David Hildenbrand
2018-11-15 11:10 ` Borislav Petkov
2018-11-15 11:20 ` David Hildenbrand
2018-11-15 11:52 ` Borislav Petkov
2018-11-15 12:01 ` David Hildenbrand
2018-11-15 17:58 ` Borislav Petkov
2018-11-15 12:11 ` Michal Hocko
2018-11-15 14:13 ` Borislav Petkov
2018-11-14 21:17 ` [PATCH RFC 4/6] xen/balloon: mark inflated pages PG_offline David Hildenbrand
2018-11-14 21:17 ` [PATCH RFC 5/6] hv_balloon: " David Hildenbrand
2018-11-14 21:17 ` [PATCH RFC 6/6] PM / Hibernate: exclude all PageOffline() pages David Hildenbrand
2018-11-15 7:48 ` Pavel Machek
2018-11-15 12:23 ` Michal Hocko
2018-11-15 12:29 ` David Hildenbrand
2018-11-14 22:57 ` Nadav Amit [this message]
2018-11-14 23:05 ` [PATCH RFC 0/6] mm/kdump: allow to exclude pages that are logically offline David Hildenbrand
2018-11-14 23:41 ` Nadav Amit
2018-11-15 1:42 ` Julien Freche
2018-11-16 18:23 ` David Hildenbrand
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