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From: Paolo Bonzini <pbonzini@redhat.com>
To: Igor Mammedov <imammedo@redhat.com>, qemu-devel@nongnu.org
Cc: mst@redhat.com
Subject: Re: [Qemu-devel] [PATCH 0/2] vhost: check if vhost has capacity for hotplugged memory
Date: Wed, 29 Jul 2015 10:33:49 +0200	[thread overview]
Message-ID: <55B88FED.8000005@redhat.com> (raw)
In-Reply-To: <20150728170808.0990203f@igors-macbook-pro.local>



On 28/07/2015 17:08, Igor Mammedov wrote:
>> >  hw/mem/pc-dimm.c                  |  7 +++++++
>> >  hw/virtio/vhost-backend.c         | 23 ++++++++++++++++++++++-
>> >  hw/virtio/vhost-user.c            |  8 +++++++-
>> >  hw/virtio/vhost.c                 | 21 +++++++++++++++++++++
>> >  include/hw/virtio/vhost-backend.h |  2 ++
>> >  include/hw/virtio/vhost.h         |  1 +
>> >  stubs/Makefile.objs               |  1 +
>> >  stubs/vhost.c                     |  6 ++++++
>> >  8 files changed, 67 insertions(+), 2 deletions(-)
>> >  create mode 100644 stubs/vhost.c
>> > 
> ping,
> 
> patches are not invasive and fix QEMU crash during memory hotplug
> when running on kernels that have lower vhost memory slots limit.
> Pls consider applying them for 2.4.

I like the approach.  For 2.5 we could consider using a
NotifierWithReturn: it can be easily extended to cover KVM as well and
removes the need for the stub.

Paolo

      reply	other threads:[~2015-07-29  8:34 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-20 13:49 [Qemu-devel] [PATCH 0/2] vhost: check if vhost has capacity for hotplugged memory Igor Mammedov
2015-07-20 13:49 ` [Qemu-devel] [PATCH 1/2] vhost: add vhost_has_free_slot() interface Igor Mammedov
2015-07-29 10:20   ` Michael S. Tsirkin
2015-07-29 11:26     ` Igor Mammedov
2015-07-20 13:49 ` [Qemu-devel] [PATCH 2/2] pc-dimm: add vhost slots limit check before commiting to hotplug Igor Mammedov
2015-07-28 15:08 ` [Qemu-devel] [PATCH 0/2] vhost: check if vhost has capacity for hotplugged memory Igor Mammedov
2015-07-29  8:33   ` Paolo Bonzini [this message]

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