On 24 nov. 2009, at 11:28, Mark McLoughlin wrote:
> On Tue, 2009-11-24 at 10:06 +0100, Pierre Riteau wrote:
>> vnet_hdr is initialized at 1 by default. We need to reset it to 0 if
>> the kernel doesn't support IFF_VNET_HDR.
>>
>> Signed-off-by: Pierre Riteau <pierre.rit...@irisa.fr>
>
> Thanks Pierre, I see why this is needed now
>
> Acked-by: Mark McLoughlin <mar...@redhat.com>
>
> Cheers,
> Mark.
Thanks for your rapid answer!
BTW, every time I run qemu I see this error message:
TUNSETOFFLOAD ioctl() failed: Invalid argument
It is caused by the piece of code at the end of net/tap-linux.c:
if (ioctl(fd, TUNSETOFFLOAD, offload) != 0) {
offload &= ~TUN_F_UFO;
if (ioctl(fd, TUNSETOFFLOAD, offload) != 0) {
fprintf(stderr, "TUNSETOFFLOAD ioctl() failed: %s\n",
strerror(errno));
}
}
Isn't there a way to detect whether the kernel supports the TUNSETOFFLOAD ioctl
at all?
--
Pierre Riteau -- http://perso.univ-rennes1.fr/pierre.riteau/
