[mythtv-users] frontend crash during UK dvb-t playback - only at adverts

[Alan Bates]

stephen - switching to ts mode has improved things somewhat. still
needs extra buffering to avoid the random glitches but ratio changes
in stream are coped with now (so far :) )

nick - i'm running on OSS - alsa wasn't happening for me when i set
this box up (pundit-r). maybe i need to retry. arts is disabled afaik.

here's what showed up when it crashed in ps mode for what it's worth :
*** glibc detected *** mythfrontend: free(): invalid next size
(normal): 0x0a4aa410 ***
======= Backtrace: =========
/lib/libc.so.6[0x9e4424]
/lib/libc.so.6(__libc_free+0x77)[0x9e495f]
/usr/lib/libstdc++.so.6(_ZdlPv+0x21)[0xcad669]
/usr/lib/libstdc++.so.6(_ZdaPv+0x1d)[0xcad6b5]
/usr/lib/libmythtv-0.18.1.so.0(_ZN10OSDSurfaceD1Ev+0x22)[0x67539d4]
======= Memory map: ========
00101000-0014b000 r-xp 00000000 16:03 2528602   
/usr/lib/libmythavformat-0.18.1.so.0.18.1
0014b000-0014e000 rwxp 0004a000 16:03 2528602   
/usr/lib/libmythavformat-0.18.1.so.0.18.1
0014e000-00376000 r-xp 00000000 16:03 2527177   
/usr/lib/libmythavcodec-0.18.1.so.0.18.1
00376000-00384000 rwxp 00228000 16:03 2527177   
/usr/lib/libmythavcodec-0.18.1.so.0.18.1
00384000-003dd000 rwxp 00384000 00:00 0
003dd000-00436000 r-xp 00000000 16:03 2522489    /usr/lib/libmng.so.1.0.0
00436000-00439000 rwxp 00058000 16:03 2522489    /usr/lib/libmng.so.1.0.0
00439000-0043b000 r-xp 00000000 16:03 2686305   
/usr/X11R6/lib/X11/locale/lib/common/xlcDef.so.2
0043b000-0043c000 rwxp 00001000 16:03 2686305   
/usr/X11R6/lib/X11/locale/lib/common/xlcDef.so.2
0043d000-00441000 r-xp 00000000 16:03 2526136    /usr/X11R6/lib/libXv.so.1.0
00441000-00442000 rwxp 00003000 16:03 2526136    /usr/X11R6/lib/libXv.so.1.0
00442000-00443000 r-xp 00000000 16:03 2686306   
/usr/X11R6/lib/X11/locale/lib/common/xlcUTF8Load.so.2
00443000-00444000 rwxp 00000000 16:03 2686306   
/usr/X11R6/lib/X11/locale/lib/common/xlcUTF8Load.so.2
00444000-00448000 r-xp 00000000 16:03 2528605   
/usr/lib/liblirc_client.so.0.0.0
00448000-00449000 rwxp 00003000 16:03 2528605   
/usr/lib/liblirc_client.so.0.0.0
00449000-0049b000 r-xp 00000000 16:03 2522816    /usr/X11R6/lib/libXt.so.6.0
0049b000-0049f000 rwxp 00052000 16:03 2522816    /usr/X11R6/lib/libXt.so.6.0
0049f000-004aa000 r-xp 00000000 16:03 2913377   
/usr/lib/qt-3.3/plugins/sqldrivers/libqsqlmysql.so
004aa000-004ab000 rwxp 0000b000 16:03 2913377   
/usr/lib/qt-3.3/plugins/sqldrivers/libqsqlmysql.so
004ab000-004b0000 r-xp 00000000 16:03 2486670    /lib/libcrypt-2.3.5.so
004b0000-004b1000 r-xp 00004000 16:03 2486670    /lib/libcrypt-2.3.5.so
004b1000-004b2000 rwxp 00005000 16:03 2486670    /lib/libcrypt-2.3.5.so
004b2000-004d9000 rwxp 004b2000 00:00 0
004d9000-004f0000 r-xp 00000000 16:03 2528737    /usr/lib/libgssapi_krb5.so.2.2
004f0000-004f1000 rwxp 00017000 16:03 2528737    /usr/lib/libgssapi_krb5.so.2.2
004f1000-004f3000 r-xp 00000000 16:03 2486661    /lib/libcom_err.so.2.1
004f3000-004f4000 rwxp 00001000 16:03 2486661    /lib/libcom_err.so.2.1
004f4000-004f6000 r-xp 00000000 16:03 2528127    /usr/lib/libkrb5support.so.0.0
004f6000-004f7000 rwxp 00001000 16:03 2528127    /usr/lib/libkrb5support.so.0.0
004f7000-004f9000 r-xp 00000000 16:03 2486658    /lib/libutil-2.3.5.so
004f9000-004fa000 r-xp 00001000 16:03 2486658    /lib/libutil-2.3.5.so
004fa000-004fb000 rwxp 00002000 16:03 2486658    /lib/libutil-2.3.5.so
004fb000-004ff000 r-xp 00000000 16:03 2526276    /usr/lib/libogg.so.0.5.2
004ff000-00500000 rwxp 00003000 16:03 2526276    /usr/lib/libogg.so.0.5.2
00500000-00501000 r-xp 00500000 00:00 0
00501000-005d1000 r-xp 00000000 16:03 2528742    /usr/X11R6/lib/libX11.so.6.2
005d1000-005d5000 rwxp 000cf000 16:03 2528742    /usr/X11R6/lib/libX11.so.6.2
005d5000-0061a000 r-xp 00000000 16:03 2879584   
/usr/lib/mysql/libmysqlclient.so.14.0.0
0061a000-006f4000 rwxp 00045000 16:03 2879584   
/usr/lib/mysql/libmysqlclient.so.14.0.0
006f4000-006f6000 rwxp 006f4000 00:00 0
006f6000-00719000 r-xp 00000000 16:03 2528735    /usr/lib/libk5crypto.so.3.0
00719000-0071a000 rwxp 00023000 16:03 2528735    /usr/lib/libk5crypto.so.3.0
0071a000-00723000 r-xp 00000000 16:03 2485557    /lib/libnss_files-2.3.5.so
00723000-00724000 r-xp 00008000 16:03 2485557    /lib/libnss_files-2.3.5.so
00724000-00725000 rwxp 00009000 16:03 2485557    /lib/libnss_files-2.3.5.so
00725000-00727000 r-xp 00000000 16:03 2913421   
/usr/lib/mythtv/filters/libadjust.so
00727000-00728000 rwxp 00001000 16:03 2913421   
/usr/lib/mythtv/filters/libadjust.so
00728000-00729000 r-xp 00000000 16:03 2913681   
/usr/lib/mythtv/filters/libbobdeint.so
00729000-0072a000 rwxp 00000000 16:03 2913681   
/usr/lib/mythtv/filters/libbobdeint.so
0072b000-007aa000 r-xp 00000000 16:03 2526918 Aborted

On 9/20/05, Nick <knowledgejunkie at gmail.com> wrote:
> On 20/09/05, Alan Bates <bite.my.shiny.metal.ass at gmail.com> wrote:
> > ok - bit more info. editing some of the setup options changed the
> > behaviour. disabling "extra audio buffering" in tv playback options
> > means the loss of audio does not occur at the commercial break. great!
> > but the reason it's enabled is because if it's not, playback loses
> > audio, crackles AND video ffwds at some points - seemingly random
> > although changing aspect ratio manually makes it happen. points to an
> > audio/buffer problem?
>
> I would check to make sure you are using a newish (>=1.0.8, likely if
> using atrpms) version of ALSA and see if this helps at all. Disable
> arts too as this can cause problems. I don't have any of these issues
> using the new Nova-T (909 or 90002 model). Does this behaviour still
> occur if you manually override the AR changing in frontend setup?
>
> Nick
>