[vdr] MP3-plugin problems with slow cpu

Martin Cap macap20001 at compuserve.de
Mon Jul 25 19:11:05 CEST 2005

Martin Cap wrote:
> Stefan Huelswitt wrote:
>> But normaly the plugin uses mmap() to read the file (if you
>> haven't disabled this by intent), so that the code part you
>> mentioned isn't used at all.
> Hu ! I haven't changed anything the first time I compiled and ran the 
> plugin and it did not work then. How could this happen ?
> I will have to check this first.
> Thanks for your help so far and I'll get back to this later this evening.

Hu, Hu ! I reinstalled the plugin from sources and still don't have no 
such luck.
I played with the code as I said in my initial mail, which made the 
backtrace wrong, here's the
correct one. Sorry for the extra confusion !

#0  0xb7f446a1 in __read_nocancel () from /lib/tls/libpthread.so.0
#1  0xb7692e32 in cStream::Stream (this=0x92bab70, data=@0xb1385618,
     len=@0xb138561c, rest=0x7ff9 <Address 0x7ff9 out of bounds>)
     at stream.c:256
#2  0xb7699b66 in cScanID3::DoScan (this=0x92bac18) at decoder-mp3.c:38
#3  0xb76989ee in cMP3Decoder::Start (this=0x92baad0) at decoder-mp3.c:155
#4  0xb769165d in cMP3Player::Action (this=0x92829a0) at player-mp3.c:1798
#5  0x080ef2a2 in cThread::StartThread ()
#6  0xb7f3fb63 in start_thread () from /lib/tls/libpthread.so.0
#7  0xb7df418a in clone () from /lib/tls/libc.so.6

So the dead-lock happens at line 256. Strange, obviously.
(I can output what r + errno give me when returning from read() and post 
it here.)

Martin Cap

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