id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	mlocked
9034	Error Opening jump program file buffer in Live TV	ligverd@…		"System:
Qt-4.6.3
NVidia 195.36.24
mythtv svn from r262?? to r26592

Live TV UDP Multicast
have almost always error:
""Error Opening jump program file buffer""

tcpdump -n -i eth1 igmp

First run Live TV
{{{
06:08:11.539080 IP 10.242.44.105 > 224.0.0.2: igmp leave 230.0.1.20
06:08:11.544583 IP 10.242.44.105 > 230.0.1.20: igmp v2 report 230.0.1.20
06:08:12.438036 IP 10.248.18.161 > 230.0.1.20: igmp query v2 [max resp time 10] [gaddr 230.0.1.20]
06:08:12.784576 IP 10.242.44.105 > 230.0.1.20: igmp v2 report 230.0.1.20
06:08:13.440329 IP 10.248.18.161 > 230.0.1.20: igmp query v2 [max resp time 10] [gaddr 230.0.1.20]
06:08:14.257909 IP 10.242.44.105 > 230.0.1.20: igmp v2 report 230.0.1.20
}}}
All right, look
...
Switch the channel

{{{
06:08:20.981990 IP 10.242.44.105 > 224.0.0.2: igmp leave 230.0.1.20
06:08:21.077927 IP 10.242.44.105 > 230.0.1.54: igmp v2 report 230.0.1.54
06:08:21.440232 IP 10.248.18.161 > 230.0.1.20: igmp query v2 [max resp time 10] [gaddr 230.0.1.20]
06:08:22.291240 IP 10.242.44.105 > 230.0.1.54: igmp v2 report 230.0.1.54
06:08:22.440099 IP 10.248.18.161 > 230.0.1.20: igmp query v2 [max resp time 10] [gaddr 230.0.1.20]
06:08:23.298522 IP 10.242.44.105 > 224.0.0.2: igmp leave 230.0.1.54
06:08:23.442619 IP 10.248.18.161 > 230.0.1.54: igmp query v2 [max resp time 10] [gaddr 230.0.1.54]
06:08:23.451667 IP 10.242.44.105 > 230.0.1.20: igmp v2 report 230.0.1.20
06:08:24.440503 IP 10.248.18.161 > 230.0.1.54: igmp query v2 [max resp time 10] [gaddr 230.0.1.54]
06:08:28.318322 IP 10.242.44.105 > 230.0.1.20: igmp v2 report 230.0.1.20
06:08:33.454237 IP 10.242.44.1 > 224.0.0.1: igmp query v2
06:08:33.455514 IP 10.250.44.1 > 224.0.0.1: igmp query v2
06:08:33.457003 IP 10.248.18.161 > 224.0.0.1: igmp query v2
06:08:34.344571 IP 10.242.44.105 > 230.0.1.20: igmp v2 report 230.0.1.20
06:08:39.514587 IP 10.242.44.105 > 239.255.255.250: igmp v2 report 239.255.255.250
}}}

Crashes with error:
""Error Opening jump program file buffer""

after which the multicast stream 230.0.1.20 continues to run

moment of switching are two threads together.
:(
"	Bug Report - General	closed	trivial	unknown	MythTV - Recording	Master Head	low	Duplicate	Live TV igmp		1