[Bug 5774] udp traffic stop working after a time for dht/utorrent
wine-bugs at winehq.org
Fri May 25 04:15:21 CDT 2007
------- Additional Comments From damjan.jov at gmail.com 2007-25-05 04:15 -------
Well unfortunately Alexandre doesn't like the patch, and isn't convinced, so
it hasn't been accepted (yet?) and so far won't be in the next version of wine.
Basically I showed that a UDP datagram with a bad checksum causes a spurious
wakeup, that spurious wakeups break emule, and that trying a read prevents
spurious wakeups, but Alexandre also wants to see that nothing else causes the
spurious wakeups. I am of the opinion that any other causes of spurious
wakeups should be separate bugs and my patch should be accepted regardless,
but what can I do?
If you want to help, and have a lot of patience, run wireshark capturing all
UDP traffic to a file, and run emule on an unpatched wine 0.9.37 with
+winsock,+server,+tid (again to a file, it's many gigabytes long). Then
somehow correlate the 2 logs (hard, wine's log doesn't have timestamps) and
show what happens in the UDP traffic when WSARecvFrom returns error 10035
(EWOULDBLOCK) for a UDP socket (it should only happen once), I suspect you get
a bad UDP checksum. Then I'll go and argue some more :-).
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