Hi all,
Ok, let me prepare a new patch v2, where I'll write a
description/analysis of the issue in the commit message.
On Thu, Feb 22, 2024 at 10:02 PM Michael S. Tsirkin wrote:
>
> On Mon, Jan 15, 2024 at 05:32:25PM -0500, Michael S. Tsirkin wrote:
> > On Mon, Jan 15, 2024 at 09:48:40PM +0200,
On Mon, Jan 15, 2024 at 05:32:25PM -0500, Michael S. Tsirkin wrote:
> On Mon, Jan 15, 2024 at 09:48:40PM +0200, Andrew Melnychenko wrote:
> > 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
Just polite ping
On Tue, Jan 16, 2024 at 12:32 AM Michael S. Tsirkin wrote:
>
> On Mon, Jan 15, 2024 at 09:48:40PM +0200, Andrew Melnychenko wrote:
> > 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
On Mon, Jan 15, 2024 at 09:48:40PM +0200, Andrew Melnychenko wrote:
> 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
>
See also https://issues.redhat.com/browse/RHEL-1303
On Mon, Jan 15, 2024 at 9:48 PM Andrew Melnychenko wrote:
>
> 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
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
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