[mythtv-commits] Ticket #11319: Sometimes LiveTV hangs with Error opening jump program file

MythTV noreply at mythtv.org
Sat Jun 15 04:23:51 UTC 2013


#11319: Sometimes LiveTV hangs with Error opening jump program file
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 Reporter:  ernstp@…                    |          Owner:  danielk
     Type:  Bug Report - Hang/Deadlock  |         Status:  new
 Priority:  critical                    |      Milestone:  unknown
Component:  MythTV - DVB                |        Version:  0.26-fixes
 Severity:  high                        |     Resolution:
 Keywords:                              |  Ticket locked:  0
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Comment (by John.H.Haller@…):

 Since the semaphore guarding the data structure is only held while
 manipulating a map structure and never held over a function call other
 than the map, this looks like a data corruption problem, not a lock
 problem, perhaps a use after free bug.

 In my case, this mostly happens after the front-end suffers a very long
 response time on a disk write:
 2013-06-14 22:57:14.709036 W [5633/29415] TFWWrite
 ThreadedFileWriter.cpp:499 (DiskLoop) -
 TFW(/mythstore/5289_20130614225311.mpg:69): write(57528) cnt 617 total
 35698568 -- took a long time, 20489 ms

-- 
Ticket URL: <http://code.mythtv.org/trac/ticket/11319#comment:3>
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