From: Rusty Russell <rusty@rustcorp.com.au>
To: Jason Wang <jasowang@redhat.com>,
mst@redhat.com, virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Jason Wang <jasowang@redhat.com>,
Wanlong Gao <gaowanlong@cn.fujitsu.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>
Subject: Re: [PATCH net V2 1/2] virtio-net: don't respond to cpu hotplug notifier if we're not ready
Date: Thu, 17 Oct 2013 09:57:41 +1030 [thread overview]
Message-ID: <8738o0aj9u.fsf@rustcorp.com.au> (raw)
In-Reply-To: <1381807139-3450-1-git-send-email-jasowang@redhat.com>
Jason Wang <jasowang@redhat.com> writes:
> We're trying to re-configure the affinity unconditionally in cpu hotplug
> callback. This may lead the issue during resuming from s3/s4 since
>
> - virt queues haven't been allocated at that time.
> - it's unnecessary since thaw method will re-configure the affinity.
>
> Fix this issue by checking the config_enable and do nothing is we're not ready.
>
> The bug were introduced by commit 8de4b2f3ae90c8fc0f17eeaab87d5a951b66ee17
> (virtio-net: reset virtqueue affinity when doing cpu hotplug).
>
> Cc: Rusty Russell <rusty@rustcorp.com.au>
> Cc: Michael S. Tsirkin <mst@redhat.com>
> Cc: Wanlong Gao <gaowanlong@cn.fujitsu.com>
> Acked-by: Michael S. Tsirkin <mst@redhat.com>
> Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
> Signed-off-by: Jason Wang <jasowang@redhat.com>
> ---
> The patch is need for 3.8 and above.
Please put 'CC: stable@kernel.org # 3.8+' in the commit.
(The specification of the stable line is poor, but that seems to be one
common method).
Cheers,
Rusty.
next prev parent reply other threads:[~2013-10-17 3:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-15 3:18 [PATCH net V2 1/2] virtio-net: don't respond to cpu hotplug notifier if we're not ready Jason Wang
2013-10-15 3:18 ` [PATCH net V2 2/2] virtio-net: refill only when device is up during setting queues Jason Wang
2013-10-17 19:55 ` David Miller
2013-10-16 23:27 ` Rusty Russell [this message]
2013-10-17 5:07 ` [PATCH net V2 1/2] virtio-net: don't respond to cpu hotplug notifier if we're not ready Michael S. Tsirkin
2013-10-18 1:00 ` Rusty Russell
2013-10-18 3:48 ` David Miller
2013-10-18 6:17 ` Rusty Russell
2013-10-18 7:13 ` David Miller
2013-10-17 19:55 ` David Miller
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=8738o0aj9u.fsf@rustcorp.com.au \
--to=rusty@rustcorp.com.au \
--cc=gaowanlong@cn.fujitsu.com \
--cc=gregkh@linuxfoundation.org \
--cc=jasowang@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mst@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=virtualization@lists.linux-foundation.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox