IRCloggy #hts 2014-05-23

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2014-05-23

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negge adamsutton: had a chance to review my commits?05:25
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ckarrie perexg, adamsutton: my tvh crashed tonight again, here is my gdb back trace: http://filebin.net/xadork3c66/gdb.txt06:35
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adamsutton hmm, must get that CWC under control, why on earth there are so many threads!08:39
ckarrie: I can't actually see which thread died?08:41
I'm probably going blind, but so many threads in there08:41
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adamsutton perexg: I've found some locking issues with your HTTP client, not sure of best solution08:42
ckarrie3 adamsutton: ? just 3 cwc entries08:43
should i reduce them?08:43
It works fine the whole day, but something went wrong every night08:44
dj_beirut adamsutton i found a script that does that.. a bit old though. https://tvheadend.org/issues/113708:52
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perexg adamsutton: details, please?09:24
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adamsutton perexg: there is a lock ordering issue between iptv (http) and the http client code09:32
perexg ckarrie: tell me your top commit.. 'git rev-parse HEAD'09:32
ckarrie ok09:33
adamsutton on start/stop, iptv will lock its own internal lock then call the reg/unreg routines in http, which require http lock09:33
ckarrie 236ebc93cc0e33a86bbdc84a2312163dcacf3de309:33
adamsutton on data processing, http will lock its own lock (to get entry from Q) and hold it and pass to client, the iptv http client data handler then tries to lock iptv lock09:33
I noticed it when I enabled new idle scanning on my test iptv network and it eventually deadlocked09:34
I'm not sure what the best strategy is to fix it, was looking last night at whether I could change IPTV code or HTTP code, but couldn't come up with an easy solution09:36
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perexg ckarrie: this commit is not in the tvheadend tree :-( try 'git log --format=oneline HEAD~1..'09:39
adamsutton: let IPTV create another thread for the HTTP connection ? I know you said "too many threads" a little ago :-)09:41
ckarrie perexg: 236ebc93cc0e33a86bbdc84a2312163dcacf3de3 tcp: don't free on error (it won't be assigned)09:42
last commit09:42
perexg ckarrie: :-) sure, forgot to update my tree.. thanks..09:42
ckarrie i'm on https://github.com/tvheadend/tvheadend09:43
perexg: ok, i thought i'm on the wrong repository09:43
perexg adamsutton: another possibility is to send the received data outside the lock in the shared thread in src/httpc.c09:44
adamsutton perexg: that's what I was trying to do, but was a bit concerned about side effects, having not written that code I was struggling to get my head around all the data flows09:44
I was trying to defer all deletion to in that thread, set some flag etc...09:45
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dj_beirut perexg u there?09:51
dmarion Can somebody take a look into following diif, https://github.com/dmarion/tvheadend/commit/680c504af9a6d7cd8ad6389185cd33c89d6cd90509:52
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dmarion trying to understand if fe_bandwidth_t is used instead of dvb_fe_bandwidth_t by mistake or with intention09:52
perexg adamsutton: another idea: move http_client_run() outside a lock and use pthread_cond_t - wait in the http_client_close() ..09:57
adamsutton perexg: yeah, that might work09:59
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perexg dmarion: nice cleanup, looks good - thanks.. could you create new pull request on github?10:05
dmarion perexg: it is part of my effort to get it running on OS X, but still this can be submitted separately…10:08
btw i have it running, still cleanup is needed….10:08
perexg dmarion: great, I think that you can send cleanups like this in small chunks..10:14
dmarion perexg: as OS X uses clang, lot of interesting warnings pops out like always false comparisons…10:17
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perexg ckarrie: I think that I found the culprit.. thinking about the fix..10:18
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ckarrie3 perexg: wow okay :-)10:55
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dj_beirut perexg does the hts just forward the client "xbmc" to the iptv stream or does it restream it?11:36
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perexg dj_beirut: restream..12:48
dj_beirut perexg and if there is like 5 clients connected to the same channel does it restream 5 times or does it use the same one?12:49
ckarrie dj_beirut: the mux get splitted into the service (not all services from one mux get streamed)12:49
perexg the source is shared12:50
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dj_beirut peregx how can i import a m3u list or xml list with my iptv streams to hts? i found a script but it seems old: https://tvheadend.org/issues/113714:00
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htsbot Commit in 'master ' by Jaroslav Kysela [ file modified ]14:36
scanfile: Fix the recent DVB-T2 line parsing14:36
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htsbot Commit in 'master ' by Jaroslav Kysela [ file modified ]19:14
mpegts: scan done - fix the mux name initialization19:14
Commit in 'master ' by Jaroslav Kysela [ files modified ]19:14
SAT>IP: Fix the global_lock input thread deadlock19:14
perexg ckarrie: your turn ;-)19:14
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dmarion perexg: can you take a look into PR #39422:03
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ckarrie perexg: okay will take a look :-)22:12
ABDU1989: first stop any software that access dvb devices22:19
ABDU1989: than use w_scan -h to read the help22:20
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