Opened 12 years ago
Closed 12 years ago
#10620 closed Bug Report - Hang/Deadlock (Duplicate)
IPTV recorder throws mythbackend into endless loop/unresponsive state
Reported by: | Owned by: | danielk | |
---|---|---|---|
Priority: | minor | Milestone: | unknown |
Component: | MythTV - Recording | Version: | 0.25 |
Severity: | medium | Keywords: | IPTV |
Cc: | Ticket locked: | no |
Description
I've updated from mythtv 0.24.2 to 0.25 on Fedora 16 on a box that has a DVB-C card and multicast IPTV (udp://224.... variety) connectivity. With 0.24 IPTV had serious problems with recording multiple recordings at the same time, so I was eager to test the rewritten IPTV recorder code.
Tests:
a) record single DVB-C stream: works OK
b) record multiple DVB-C streams: works OK
c) record single IPTV stream: recording starts and is OK, but recording is never stopped, i.e. mythbackend doesn't go back to idle
- the next scheduled IPTV recording doesn't start
- mythbackend can only be stopped with kill -9: "systemctl stop mythbackend.service" tries for a long time and then gives up and uses kill -9.
d) record multiple IPTV streams: first two recordings are started, then mythbackend seems to be in some endless loop, reacting very slowly
- frontend/mythfilldatabase/mythweb either have extremely slow reaction or timeout
- a third scheduled IPTV recording is NOT started
- the two recordings go on forever
- mythbackend can only be stopped with kill -9
The attached log are the mythbackend messages filtered out of syslog from my test:
[08:46] start first scheduled DVB-C recording [08:59] start second scheduled DVB-C recording [09:34] end second DVB-C recording [09:39] end first DVB-C recording [09:58] start first scheduled IPTV recording [10:34] stop first scheduled IPTV recording (NOTE: mythtvbackend keeps on writing data to the file!!!) [10:54] -> this is where the next scheduled IPTV recording should have started, but nothing happens [10:56] "systemctl stop mythbackend.service" -> two more messages until it gets killed with -9
Attachments (1)
Change History (8)
comment:1 Changed 12 years ago by
Just to be sure that this isn't update or multiple-IPTV network recorder related I now
- deleted all old 4 FreeBOX network recorder entries
- created ONE new network recorder
- started an IPTV recording
Still the same problem.
comment:2 Changed 12 years ago by
FYI: just compiled 0.25/fixes @ 1a671d0b252d2b33bd1e96258e65a15d52a5fc7d: problem still exists
comment:3 Changed 12 years ago by
Seems to be a dup of #9670 (see, specifically comment:31:ticket:9670).
comment:4 Changed 12 years ago by
I'm certain this is a different problem. As far as I can tell from mplayer (also uses live555) and that IPTV recordings have subtitles, my IPTV provider sends TS not PS.
I applied the patch after comment:35:ticket:9670 and that didn't fix my problem.
FYI: I have live555-0-0.32.2011.09.02.fc16.i686 installed on my box.
mythbackend messages extracted from syslog