From: xuan.ding@intel.com To: maxime.coquelin@redhat.com, chenbo.xia@intel.com Cc: dev@dpdk.org, jiayu.hu@intel.com, Xuan Ding <xuan.ding@intel.com>, stable@dpdk.org Subject: [PATCH v3] doc: fix vhost multi-queue reconnection Date: Fri, 15 Apr 2022 02:08:01 +0000 Message-ID: <20220415020801.37612-1-xuan.ding@intel.com> (raw) In-Reply-To: <20220221072743.88049-1-xuan.ding@intel.com> From: Xuan Ding <xuan.ding@intel.com> 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") Cc: stable@dpdk.org Signed-off-by: Xuan Ding <xuan.ding@intel.com> --- v3: * Updated affected QEMU versions. v2: * 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 **Driver/Module**: ALL. -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 +-------------------------------------------------------------------------- **Description** 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"). **Implication** Vhost cannot reconnect back to virtio-net/virtio-pmd normally. -- 2.17.1
next prev 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] <20220221072743.88049-1-xuan.ding@intel.com> 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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