> -----Original Message----- > From: Ding, Xuan <xuan.d...@intel.com> > Sent: Friday, April 15, 2022 10:08 AM > To: maxime.coque...@redhat.com; Xia, Chenbo <chenbo....@intel.com> > Cc: dev@dpdk.org; Hu, Jiayu <jiayu...@intel.com>; Ding, Xuan > <xuan.d...@intel.com>; sta...@dpdk.org > Subject: [PATCH v3] doc: fix vhost multi-queue reconnection > > From: Xuan Ding <xuan.d...@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: sta...@dpdk.org > > Signed-off-by: Xuan Ding <xuan.d...@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
So 5.1.0 fixes the problem or not? As 5.1.0 is later than 5.1.0-rc3 but you said from 5.2.0 it's fixed. And I think we should just mention formal release, not any rc, qemu users should not use any rc for formal usage. Thanks, Chenbo > +------------------------------------------------------------------------- > - > > **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