On Tue, Jun 14, 2022 at 02:17:26AM -0300, Leonardo Bras wrote: > Somewhere between v6 and v7 the of the zero-copy-send patchset a crucial > part of the flushing mechanism got missing: incrementing zero_copy_queued. > > Without that, the flushing interface becomes a no-op, and there is no > guarantee the buffer is really sent. > > This can go as bad as causing a corruption in RAM during migration. > > Fixes: 2bc58ffc2926 ("QIOChannelSocket: Implement io_writev zero copy flag & > io_flush for CONFIG_LINUX") > Reported-by: 徐闯 <xuchuangxc...@bytedance.com> > Signed-off-by: Leonardo Bras <leob...@redhat.com> > --- > io/channel-socket.c | 5 +++++ > 1 file changed, 5 insertions(+)
Reviewed-by: Daniel P. Berrangé <berra...@redhat.com> With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|