From: "Wang, Wei W" <wei.w.wang@intel.com>
To: 'David Hildenbrand' <david@redhat.com>,
'Nitesh Narayan Lal' <nitesh@redhat.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"lcapitulino@redhat.com" <lcapitulino@redhat.com>,
"pagupta@redhat.com" <pagupta@redhat.com>,
"yang.zhang.wz@gmail.com" <yang.zhang.wz@gmail.com>,
"riel@surriel.com" <riel@surriel.com>,
"mst@redhat.com" <mst@redhat.com>,
"dodgen@google.com" <dodgen@google.com>,
"konrad.wilk@oracle.com" <konrad.wilk@oracle.com>,
"dhildenb@redhat.com" <dhildenb@redhat.com>,
"aarcange@redhat.com" <aarcange@redhat.com>
Subject: RE: [RFC][Patch v8 0/7] KVM: Guest Free Page Hinting
Date: Fri, 15 Feb 2019 09:05:10 +0000 [thread overview]
Message-ID: <286AC319A985734F985F78AFA26841F73DF71F38@shsmsx102.ccr.corp.intel.com> (raw)
In-Reply-To: <bdd4298d-b84b-1ffb-0d9c-3ff5798da325@redhat.com>
On Thursday, February 14, 2019 5:43 PM, David Hildenbrand wrote:
> Yes indeed, that is the important bit. They must not be put pack to the
> buddy before they have been processed by the hypervisor. But as the pages
> are not in the buddy, no one allocating a page will stumble over such a page
> and try to allocate it. Threads trying to allocate memory will simply pick
> another buddy page instead of "busy waiting" for that page to be finished
> reporting.
What if a guest thread try to allocate some pages but the buddy cannot satisfy
because all the pages are isolated? Would it be the same case that the guest thread
gets blocked by waiting all the isolated pages to get madvised by the host and
returned to the guest buddy, or even worse, some guest threads get killed due to oom?
Best,
Wei
next prev parent reply other threads:[~2019-02-15 9:05 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-04 20:18 [RFC][Patch v8 0/7] KVM: Guest Free Page Hinting Nitesh Narayan Lal
2019-02-04 20:18 ` [RFC][Patch v8 1/7] KVM: Support for guest free page hinting Nitesh Narayan Lal
2019-02-05 4:14 ` Michael S. Tsirkin
2019-02-05 13:06 ` Nitesh Narayan Lal
2019-02-05 16:27 ` Michael S. Tsirkin
2019-02-05 16:34 ` Nitesh Narayan Lal
2019-02-04 20:18 ` [RFC][Patch v8 2/7] KVM: Enabling guest free page hinting via static key Nitesh Narayan Lal
2019-02-08 18:07 ` Alexander Duyck
2019-02-08 18:22 ` Nitesh Narayan Lal
2019-02-04 20:18 ` [RFC][Patch v8 3/7] KVM: Guest free page hinting functional skeleton Nitesh Narayan Lal
2019-02-04 20:18 ` [RFC][Patch v8 4/7] KVM: Disabling page poisoning to prevent corruption Nitesh Narayan Lal
2019-02-07 17:23 ` Alexander Duyck
2019-02-07 17:56 ` Nitesh Narayan Lal
2019-02-07 18:24 ` Alexander Duyck
2019-02-07 19:14 ` Michael S. Tsirkin
2019-02-07 21:08 ` Michael S. Tsirkin
2019-02-04 20:18 ` [RFC][Patch v8 5/7] virtio: Enables to add a single descriptor to the host Nitesh Narayan Lal
2019-02-05 20:49 ` Michael S. Tsirkin
2019-02-06 12:56 ` Nitesh Narayan Lal
2019-02-06 13:15 ` Luiz Capitulino
2019-02-06 13:24 ` Nitesh Narayan Lal
2019-02-06 13:29 ` Luiz Capitulino
2019-02-06 14:05 ` Nitesh Narayan Lal
2019-02-06 18:03 ` Michael S. Tsirkin
2019-02-06 18:19 ` Nitesh Narayan Lal
2019-02-04 20:18 ` [RFC][Patch v8 6/7] KVM: Enables the kernel to isolate and report free pages Nitesh Narayan Lal
2019-02-05 20:45 ` Michael S. Tsirkin
2019-02-05 21:54 ` Nitesh Narayan Lal
2019-02-05 21:55 ` Michael S. Tsirkin
2019-02-07 17:43 ` Alexander Duyck
2019-02-07 19:01 ` Michael S. Tsirkin
2019-02-07 20:50 ` Nitesh Narayan Lal
2019-02-08 17:58 ` Alexander Duyck
2019-02-08 20:41 ` Nitesh Narayan Lal
2019-02-08 21:38 ` Michael S. Tsirkin
2019-02-08 22:05 ` Alexander Duyck
2019-02-10 0:38 ` Michael S. Tsirkin
2019-02-11 9:28 ` David Hildenbrand
2019-02-12 5:16 ` Michael S. Tsirkin
2019-02-12 17:10 ` Nitesh Narayan Lal
2019-02-08 21:35 ` Michael S. Tsirkin
2019-02-04 20:18 ` [RFC][Patch v8 7/7] KVM: Adding tracepoints for guest page hinting Nitesh Narayan Lal
2019-02-04 20:20 ` [RFC][QEMU PATCH] KVM: Support for guest free " Nitesh Narayan Lal
2019-02-12 9:03 ` [RFC][Patch v8 0/7] KVM: Guest Free Page Hinting Wang, Wei W
2019-02-12 9:24 ` David Hildenbrand
2019-02-12 17:24 ` Nitesh Narayan Lal
2019-02-12 19:34 ` David Hildenbrand
2019-02-13 8:55 ` Wang, Wei W
2019-02-13 9:19 ` David Hildenbrand
2019-02-13 12:17 ` Nitesh Narayan Lal
2019-02-13 17:09 ` Michael S. Tsirkin
2019-02-13 17:22 ` Nitesh Narayan Lal
[not found] ` <286AC319A985734F985F78AFA26841F73DF6F1C3@shsmsx102.ccr.corp.intel.com>
2019-02-14 9:34 ` David Hildenbrand
2019-02-13 17:16 ` Michael S. Tsirkin
2019-02-13 17:59 ` David Hildenbrand
2019-02-13 19:08 ` Michael S. Tsirkin
2019-02-14 9:08 ` Wang, Wei W
2019-02-14 10:00 ` David Hildenbrand
2019-02-14 10:44 ` David Hildenbrand
2019-02-15 9:15 ` Wang, Wei W
2019-02-15 9:33 ` David Hildenbrand
2019-02-13 9:00 ` Wang, Wei W
2019-02-13 12:06 ` Nitesh Narayan Lal
2019-02-14 8:48 ` Wang, Wei W
2019-02-14 9:42 ` David Hildenbrand
2019-02-15 9:05 ` Wang, Wei W [this message]
2019-02-15 9:41 ` David Hildenbrand
2019-02-18 2:36 ` Wei Wang
2019-02-18 2:39 ` Wei Wang
2019-02-15 12:40 ` Nitesh Narayan Lal
2019-02-14 13:00 ` Nitesh Narayan Lal
2019-02-16 9:40 ` David Hildenbrand
2019-02-18 15:50 ` Nitesh Narayan Lal
2019-02-18 16:02 ` David Hildenbrand
2019-02-18 16:49 ` Michael S. Tsirkin
2019-02-18 16:59 ` David Hildenbrand
2019-02-18 17:31 ` Alexander Duyck
2019-02-18 17:41 ` David Hildenbrand
2019-02-18 23:47 ` Alexander Duyck
2019-02-19 2:45 ` Michael S. Tsirkin
2019-02-19 2:46 ` Andrea Arcangeli
2019-02-19 12:52 ` Nitesh Narayan Lal
2019-02-19 16:23 ` Alexander Duyck
2019-02-19 8:06 ` David Hildenbrand
2019-02-19 14:40 ` Michael S. Tsirkin
2019-02-19 14:44 ` David Hildenbrand
2019-02-19 14:45 ` David Hildenbrand
2019-02-18 18:01 ` Michael S. Tsirkin
2019-02-18 17:54 ` Michael S. Tsirkin
2019-02-18 18:29 ` David Hildenbrand
2019-02-18 19:16 ` Michael S. Tsirkin
2019-02-18 19:35 ` David Hildenbrand
2019-02-18 19:47 ` Michael S. Tsirkin
2019-02-18 20:04 ` David Hildenbrand
2019-02-18 20:31 ` Michael S. Tsirkin
2019-02-18 20:40 ` Nitesh Narayan Lal
2019-02-18 21:04 ` David Hildenbrand
2019-02-19 0:01 ` Alexander Duyck
2019-02-19 7:54 ` David Hildenbrand
2019-02-19 18:06 ` Alexander Duyck
2019-02-19 18:31 ` David Hildenbrand
2019-02-19 21:57 ` Alexander Duyck
2019-02-19 22:17 ` Michael S. Tsirkin
2019-02-19 22:36 ` David Hildenbrand
2019-02-19 19:58 ` Michael S. Tsirkin
2019-02-19 20:02 ` David Hildenbrand
2019-02-19 20:17 ` Michael S. Tsirkin
2019-02-19 20:21 ` David Hildenbrand
2019-02-19 20:35 ` Michael S. Tsirkin
2019-02-19 12:47 ` Nitesh Narayan Lal
2019-02-19 13:03 ` David Hildenbrand
2019-02-19 14:17 ` Nitesh Narayan Lal
2019-02-19 14:21 ` David Hildenbrand
2019-02-18 20:53 ` David Hildenbrand
2019-02-23 0:02 ` Alexander Duyck
2019-02-25 13:01 ` Nitesh Narayan Lal
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=286AC319A985734F985F78AFA26841F73DF71F38@shsmsx102.ccr.corp.intel.com \
--to=wei.w.wang@intel.com \
--cc=aarcange@redhat.com \
--cc=david@redhat.com \
--cc=dhildenb@redhat.com \
--cc=dodgen@google.com \
--cc=konrad.wilk@oracle.com \
--cc=kvm@vger.kernel.org \
--cc=lcapitulino@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mst@redhat.com \
--cc=nitesh@redhat.com \
--cc=pagupta@redhat.com \
--cc=pbonzini@redhat.com \
--cc=riel@surriel.com \
--cc=yang.zhang.wz@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.