Trying to revive this thread.
To review: skb_copy_and_csum_datagram_msg() pretty clearly doesn't do
the right thing since it started using an iov_iter to copy into the
user's iovec. In particular, if it encounters a datagram that fails the
checksum, the iov_iter continues to point to the end of
Christian Lamparter writes:
> On Wednesday, September 28, 2016 7:20:39 PM CEST Jay Smith wrote:
>> Actually, on a little more searching of this list's archives, I think
>> that this discussion: https://patchwork.kernel.org/patch/9260733/ is
>> about exactly the sam
yield to someone with stronger
feelings about where it should go...
On Wed, Sep 28, 2016 at 6:24 PM, Eric Dumazet wrote:
> On Wed, 2016-09-28 at 17:18 -0700, Jay Smith wrote:
>> I've spent the last week or so trying to track down a recurring
>> problem I'm seeing with UDP
I've spent the last week or so trying to track down a recurring
problem I'm seeing with UDP datagram handling. I'm new to the
internals of the Linux network stack, but it appears to me that
there's a substantial error in recent kernels' handling of UDP
checksum errors.
The behavior I'm seeing: I
