diff options
| author | Andrew Melnychenko <andrew@daynix.com> | 2024-01-15 21:48:40 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-03-19 02:45:49 -0400 |
| commit | f6baca2d32ead51b10e15f1eef812d7c6a7b9a40 (patch) | |
| tree | 301e9d942436f868eb632538192b71b5375f68fa /include/uapi | |
| parent | e8f897f4afef0031fe618a8e94127a0934896aba (diff) | |
vhost: Added pad cleanup if vnet_hdr is not present.
When the Qemu launched with vhost but without tap vnet_hdr,
vhost tries to copy vnet_hdr from socket iter with size 0
to the page that may contain some trash.
That trash can be interpreted as unpredictable values for
vnet_hdr.
That leads to dropping some packets and in some cases to
stalling vhost routine when the vhost_net tries to process
packets and fails in a loop.
Qemu options:
-netdev tap,vhost=on,vnet_hdr=off,...
Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Message-Id: <20240115194840.1183077-1-andrew@daynix.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/uapi')
0 files changed, 0 insertions, 0 deletions