patches for DPDK stable branches
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Cc:,, Xuan Ding <>,
Subject: [PATCH v3] doc: fix vhost multi-queue reconnection
Date: Fri, 15 Apr 2022 02:08:01 +0000
Message-ID: <> (raw)
In-Reply-To: <>

From: Xuan Ding <>

Since QEMU 5.2.0 fixes the vhost split ring multi-queue reconnection
issue in commit f66337bdbfda ("vhost-user: save features of multiqueues
if chardev is closed"), this patch updates known issue to indicate
the range of affeacted QEMU versions.

Fixes: b37e95507e1b ("doc: add vhost multi-queue reconnection issue")

Signed-off-by: Xuan Ding <>
* Updated affected QEMU versions.

* Add fixes in commit title and log.
 doc/guides/rel_notes/known_issues.rst | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/doc/guides/rel_notes/known_issues.rst b/doc/guides/rel_notes/known_issues.rst
index 187d9c942e..bd89d58d24 100644
--- a/doc/guides/rel_notes/known_issues.rst
+++ b/doc/guides/rel_notes/known_issues.rst
@@ -885,14 +885,15 @@ Unsuitable IOVA mode may be picked as the default
-Vhost multi-queue reconnection failed with QEMU version >= 4.2.0
+Vhost multi-queue reconnection failed with QEMU version 4.2.0 to 5.1.0-rc3
    It's a QEMU regression bug (bad commit: c6beefd674ff). QEMU only saves
    acked features for one vhost-net when vhost quits. When vhost reconnects
    to virtio-net/virtio-pmd in multi-queue situations, the features been
-   set multiple times are not consistent.
+   set multiple times are not consistent. QEMU-5.2.0 fixes this issue in commit
+   f66337bdbfda ("vhost-user: save features of multiqueues if chardev is closed").
    Vhost cannot reconnect back to virtio-net/virtio-pmd normally.

  parent reply	other threads:[~2022-04-15  2:09 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <>
2022-02-24  6:28 ` [PATCH v2] " xuan.ding
2022-03-29 12:46   ` Maxime Coquelin
2022-03-29 13:15     ` Ding, Xuan
2022-04-15  2:08 ` xuan.ding [this message]
2022-05-06  8:40   ` [PATCH v3] " Xia, Chenbo
2022-05-09  3:07     ` Ding, Xuan
2022-05-09  4:11 ` [PATCH v4] " xuan.ding
2022-05-16 12:44   ` Xia, Chenbo

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