From: Steffen Bauch <mail@steffenbauch.de>
To: dev@dpdk.org
Subject: Re: [PATCH v5 resend 07/12] virtio: resolve for control queue
Date: Thu, 8 Oct 2015 22:51:02 +0200 [thread overview]
Message-ID: <5616D736.2040108@steffenbauch.de> (raw)
In-Reply-To: <20151008153205.GB21145@kalyazin.rnd.samsung.ru>
On 10/08/2015 05:32 PM, Nikita Kalyazin wrote:
> Hi Yuanhan,
>
>
> As I understand, the dead loop happened here (virtio_send_command):
> while (vq->vq_used_cons_idx == vq->vq_ring.used->idx) {
> rte_rmb();
> usleep(100);
> }
>
> Could you explain why wrong config reading caused that and how correct reading helps to avoid?
>
Hi,
I just recognized that this dead loop is the same one that I have
experienced (see
http://dpdk.org/ml/archives/dev/2015-October/024737.html for reference).
Just applying the changes in this patch (only 07/12) will not fix the
dead loop at least in my setup.
Best regards,
Steffen
next prev parent reply other threads:[~2015-10-08 20:51 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-18 15:10 [PATCH v5 resend 00/12] vhost-user multiple queues enabling Yuanhan Liu
2015-09-18 15:10 ` [PATCH v5 resend 01/12] vhost-user: add protocol features support Yuanhan Liu
2015-09-18 15:10 ` [PATCH v5 resend 02/12] vhost-user: add VHOST_USER_GET_QUEUE_NUM message Yuanhan Liu
2015-09-18 15:10 ` [PATCH v5 resend 03/12] vhost: vring queue setup for multiple queue support Yuanhan Liu
2015-09-20 13:58 ` Marcel Apfelbaum
2015-09-21 2:06 ` Yuanhan Liu
2015-09-21 17:56 ` Marcel Apfelbaum
2015-09-22 7:31 ` Yuanhan Liu
2015-09-22 8:10 ` Marcel Apfelbaum
2015-09-22 8:34 ` Yuanhan Liu
2015-09-22 8:47 ` Marcel Apfelbaum
2015-09-22 9:21 ` Yuanhan Liu
2015-09-22 10:06 ` Marcel Apfelbaum
2015-09-22 14:22 ` Yuanhan Liu
2015-09-22 14:51 ` Marcel Apfelbaum
2015-09-23 3:46 ` Yuanhan Liu
2015-09-24 9:51 ` Marcel Apfelbaum
2015-09-21 9:07 ` Michael S. Tsirkin
2015-09-18 15:10 ` [PATCH v5 resend 04/12] vhost: rxtx: prepare work " Yuanhan Liu
2015-09-20 9:29 ` Michael S. Tsirkin
2015-09-21 2:25 ` Yuanhan Liu
2015-09-21 9:04 ` Michael S. Tsirkin
2015-09-22 2:54 ` Yuanhan Liu
2015-09-18 15:10 ` [PATCH v5 resend 05/12] vhost: add VHOST_USER_SET_VRING_ENABLE message Yuanhan Liu
2015-09-20 9:37 ` Michael S. Tsirkin
2015-09-21 2:22 ` Yuanhan Liu
2015-09-21 9:02 ` Michael S. Tsirkin
2015-09-22 2:21 ` Yuanhan Liu
2015-09-23 8:43 ` Yuanhan Liu
2015-09-18 15:10 ` [PATCH v5 resend 06/12] vhost-user: handle VHOST_USER_RESET_OWNER correctly Yuanhan Liu
2015-09-18 15:10 ` [PATCH v5 resend 07/12] virtio: resolve for control queue Yuanhan Liu
2015-09-20 9:21 ` Michael S. Tsirkin
2015-09-21 6:36 ` Yuanhan Liu
2015-10-08 15:32 ` Nikita Kalyazin
2015-10-08 20:51 ` Steffen Bauch [this message]
2015-10-09 7:11 ` Nikita Kalyazin
2015-10-12 8:39 ` Yuanhan Liu
2015-10-12 9:31 ` Xie, Huawei
2015-10-12 9:56 ` Xie, Huawei
2015-10-12 20:58 ` Steffen Bauch
2015-10-13 9:54 ` Yuanhan Liu
2015-09-18 15:10 ` [PATCH v5 resend 08/12] vhost-user: enable vhost-user multiple queue Yuanhan Liu
2015-09-18 15:10 ` [PATCH v5 resend 09/12] vhost: add API bind a virtq to a specific core Yuanhan Liu
2015-09-18 15:10 ` [PATCH v5 resend 10/12] ixgbe: support VMDq RSS in non-SRIOV environment Yuanhan Liu
2015-09-18 15:11 ` [PATCH v5 resend 11/12] examples/vhost: demonstrate the usage of vhost mq feature Yuanhan Liu
2015-09-18 15:11 ` [PATCH v5 resend 12/12] examples/vhost: add per queue stats Yuanhan Liu
2015-09-20 11:48 ` [PATCH v5 resend 00/12] vhost-user multiple queues enabling Marcel Apfelbaum
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