From: Peter Xu <peterx@redhat.com>
To: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Cc: "Mark Kanda" <mark.kanda@oracle.com>,
"Chaney, Ben" <bchaney@akamai.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"Fabiano Rosas" <farosas@suse.de>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Stefano Garzarella" <sgarzare@redhat.com>,
"Jason Wang" <jasowang@redhat.com>,
"Alex Williamson" <alex@shazbot.org>,
"Cédric Le Goater" <clg@redhat.com>,
"Eric Blake" <eblake@redhat.com>,
"Markus Armbruster" <armbru@redhat.com>,
"Stefan Weil" <sw@weilnetz.de>,
"Daniel P. Berrangé" <berrange@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Hamza Khan" <hamza.khan@nutanix.com>,
"Hunt, Joshua" <johunt@akamai.com>,
"Tottenham, Max" <mtottenh@akamai.com>
Subject: Re: [PATCH v4 0/8] Live update: tap and vhost
Date: Wed, 4 Feb 2026 11:34:43 -0500 [thread overview]
Message-ID: <aYN1I0WMl6vqaZx4@x1.local> (raw)
In-Reply-To: <0296eb32-4a67-4f46-bc5c-e4d5f1fa642d@yandex-team.ru>
On Wed, Feb 04, 2026 at 10:56:58AM +0300, Vladimir Sementsov-Ogievskiy wrote:
> I think, rebasing is not necessary, as local-fd migration (this series)
> should work together with CPR, and even with CPR-exec. So Oracle can use cpr-exec,
> and simply enable backend-transfer for virtio-net/tap, and it should work, I
> remember we discussed this with Steve. I didn't yet tested it, but I'll try to
> add a test for such setup.
IIUC it should work for cpr-transfer, but likely not cpr-exec. cpr-exec
requires removal of FD_CLOEXEC for fds to be persisted. See cpr_exec_cb()
where it invokes cpr_exec_preserve_fds() (only on top of cpr saved fds).
--
Peter Xu
prev parent reply other threads:[~2026-02-04 16:35 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-28 20:39 [PATCH v4 0/8] Live update: tap and vhost Ben Chaney
2026-01-28 20:39 ` [PATCH v4 1/8] migration: stop vm earlier for cpr Ben Chaney
2026-02-02 13:31 ` Fabiano Rosas
2026-01-28 20:39 ` [PATCH v4 2/8] migration: cpr setup notifier Ben Chaney
2026-02-02 14:01 ` Fabiano Rosas
2026-01-28 20:39 ` [PATCH v4 3/8] vhost: reset vhost devices for cpr Ben Chaney
2026-01-28 20:39 ` [PATCH v4 4/8] cpr: delete all fds Ben Chaney
2026-01-28 20:39 ` [PATCH v4 5/8] tap: common return label Ben Chaney
2026-01-28 20:39 ` [PATCH v4 6/8] tap: cpr support Ben Chaney
2026-02-04 13:05 ` Markus Armbruster
2026-01-28 20:39 ` [PATCH v4 7/8] tap: postload fix for cpr Ben Chaney
2026-01-28 20:39 ` [PATCH v4 8/8] tap: cpr fixes Ben Chaney
2026-01-29 13:58 ` [PATCH v4 0/8] Live update: tap and vhost Vladimir Sementsov-Ogievskiy
2026-02-02 14:06 ` Peter Xu
2026-02-02 15:42 ` Chaney, Ben
2026-02-03 9:57 ` Vladimir Sementsov-Ogievskiy
2026-02-03 19:17 ` Peter Xu
2026-02-03 19:46 ` Chaney, Ben
2026-02-03 20:04 ` Mark Kanda
2026-02-03 20:47 ` Peter Xu
2026-02-04 7:56 ` Vladimir Sementsov-Ogievskiy
2026-02-04 16:34 ` Peter Xu [this message]
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