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From: | Juan Quintela |
Subject: | Re: [PATCH v2 1/2] migration: enfocre multifd and postcopy preempt to be set before incoming |
Date: | Wed, 21 Jun 2023 21:41:34 +0200 |
User-agent: | Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) |
Wei Wang <wei.w.wang@intel.com> wrote: > qemu_start_incoming_migration needs to check the number of multifd > channels or postcopy ram channels to configure the backlog parameter (i.e. > the maximum length to which the queue of pending connections for sockfd > may grow) of listen(). So enforce the usage of postcopy-preempt and > multifd as below: > - need to use "-incoming defer" on the destination; and > - set_capability and set_parameter need to be done before migrate_incoming > > Otherwise, disable the use of the features and report error messages to > remind users to adjust the commands. > > Signed-off-by: Wei Wang <wei.w.wang@intel.com> > Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> queued.
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