id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	field_blocks	field_dependson	field_seealso
198	UDP packets fail a checksum test when UDP checksum_computing is on	Jakub Jermář		"When cfg/net/general contains the following line:

{{{
UDP_CHECKSUM_COMPUTING=yes
}}}

udp_process_packet() will report invalid checksum and bail out. 

Because of this, possible sockets waiting for this data will not be signaled and application such as nettest1 will appear hung.

This is reproducible only with the dp8390 and when UDP_CHECKSUM_COMPUTING=yes. Doing the same with UDP_CHECKSUM_COMPUTING=no or using the loopback interface does not reproduce the problem.

Steps how to reproduce:
1. after system boot, start networking using netstart
2. on one vc, start the echo server:
     echo -v -p 8080 -t SOCK_DGRAM
3. from another vc, run nettest1:
     nettest1 -v -p 8080 -t SOCK_DGRAM 10.0.2.15"	defect	closed	major	0.4.2	helenos/net/udp	mainline	fixed