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Music crashes frontend
http://forum.linhes.org/viewtopic.php?f=11&t=15776		 Page 1 of 1
Author:  DoomedTX [ Wed Jul 04, 2007 1:59 am ]
Post subject:  Music crashes frontend
EDIT: I posted this last night and it was gone this morning. I'm pretty sure this is the correct forum to ask this question but will have to post a second time to be sure.

I'm using a KnoppMyth-ified svn and was very recently playing music with no troubles. Following a 'rogue' tuner filling up my /myth partition, I deleted all the music from the music directory while attempting to free space. After resolving the other issue, I re-inserted the music and attempted to start using it again. However, every time I click on the music menu item or the one under setup, the frontend immediately closes. The last crash resulted in the following error in .xsession-errors:

Code:
2007-07-03 21:28:36.074 Starting media monitor.
*** glibc detected *** mythfrontend: free(): invalid pointer: 0x08438a88 ***
======= Backtrace: =========
/lib/libc.so.6[0xb5d0a15e]
/lib/libc.so.6(cfree+0x90)[0xb5d0d7b0]
/usr/lib/libstdc++.so.6(_ZdlPv+0x21)[0xb5ecec01]
/usr/lib/libstdc++.so.6(_ZNSbIwSt11char_traitsIwESaIwEE4_Rep10_M_destroyERKS1_+0x1d)[0xb5ec6a0d]
/usr/lib/libtag.so.1(_ZN6TagLib6StringD1Ev+0x92)[0xb208f5d2]
/usr/lib/mythtv/plugins/libmythmusic.so(_ZN12MetaIOTagLib4readE7QString+0x3a6)[0xb1c4f9d6]
[0x84a6398]
======= Memory map: ========
08048000-08186000 r-xp 00000000 03:01 132215     /usr/bin/mythfrontend
08186000-08187000 rw-p 0013e000 03:01 132215     /usr/bin/mythfrontend
08187000-084f0000 rw-p 08187000 00:00 0          [heap]
afb00000-afb21000 rw-p afb00000 00:00 0
afb21000-afc00000 ---p afb21000 00:00 0
afc20000-afc5e000 rw-p afc20000 00:00 0
afc5e000-afc5f000 ---p afc5e000 00:00 0
afc5f000-b045e000 rwxp afc5f000 00:00 0
<snip>
bfb39000-bfb5c000 rwxp bfb39000 00:00 0          [stack]
bfb5c000-bfb5e000 rw-p bfb5c000 00:00 0
ffffe000-fffff000 ---p 00000000 00:00 0          [vdso]
 : No such file or directory
Failed to load groupfile:


Any ideas how to proceed from here?
Author:  slowtolearn [ Wed Jul 04, 2007 7:40 am ]
Post subject: 
DoomedTX wrote:
However, every time I click on the music menu item or the one under setup, the frontend immediately closes.
Bring up an Xterm and run mythfrontend -v all. This should give you a hint as to what the culprit is...
Author:  tjc [ Wed Jul 04, 2007 7:50 am ]
Post subject: 
Since based on another thread you seem to be running an older version, see the MythtTV 0.20.1 release notes under MythMusic: http://www.mythtv.org/wiki/index.php/Release_Notes_-_0.20.1#MythMusic
There are probably any number of other fixes in the version used in the latest KnoppMyth release...
Author:  DoomedTX [ Wed Jul 04, 2007 7:59 am ]
Post subject: 
tjc wrote:
Since based on another thread you seem to be running an older version, see the MythtTV 0.20.1 release notes under MythMusic: http://www.mythtv.org/wiki/index.php/Release_Notes_-_0.20.1#MythMusic
There are probably any number of other fixes in the version used in the latest KnoppMyth release...


I was just answering your answer in the other topic :-)

This problem came out on a working system with no configuration changes, but just to be sure I updated to svn revision 13815 last night and it still segfaults on me. I'll have to see if there are known problems with libtag which seems to have been running when the frontend went down.
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