[mythtv-users] Random Crashes

[James Pifer]

My mythbackend has had several random crashes. They don't happen a lot,
maybe once every couple weeks. The last one I got this out of the log.
No idea what is means. Anyone know?

Thanks,
James

*** glibc detected *** /usr/bin/mythbackend: free(): invalid pointer: 0xb364af7c ***
======= Backtrace: =========
/lib/libc.so.6[0xaccf18]
/lib/libc.so.6(__libc_free+0x78)[0xad03ef]
/usr/lib/libstdc++.so.6(_ZdlPv+0x21)[0x2266c1]
/usr/lib/libstdc++.so.6(_ZdaPv+0x1d)[0x22671d]
/usr/lib/qt-3.3/lib/libqt-mt.so.3(_ZN11QStringData10deleteSelfEv+0x2d)[0x54a9cbd]
/usr/bin/mythbackend(_ZN17QValueListPrivateI7QStringED1Ev+0x39)[0x80680c9]
[0xb3630418]
======= Memory map: ========
00101000-00139000 r-xp 00000000 03:43 41254      /usr/lib/libfontconfig.so.1.0.4
00139000-0013d000 rwxp 00038000 03:43 41254      /usr/lib/libfontconfig.so.1.0.4
0013d000-0013e000 rwxp 0013d000 00:00 0
0013e000-0013f000 r-xp 00000000 03:43 168980     /usr/lib/mythtv/filters/libcrop.so
0013f000-00140000 rwxp 00001000 03:43 168980     /usr/lib/mythtv/filters/libcrop.so
00140000-00148000 r-xp 00000000 03:43 41304      /usr/lib/libSM.so.6.0.0
00148000-00149000 rwxp 00008000 03:43 41304      /usr/lib/libSM.so.6.0.0
00149000-0014a000 r-xp 00000000 03:43 168982     /usr/lib/mythtv/filters/libforce.so
0014a000-0014b000 rwxp 00000000 03:43 168982     /usr/lib/mythtv/filters/libforce.so
0014b000-00154000 r-xp 00000000 03:43 41248      /usr/lib/libXcursor.so.1.0.2
00154000-00155000 rwxp 00008000 03:43 41248      /usr/lib/libXcursor.so.1.0.2
00155000-00156000 r-xp 00000000 03:43 168983     /usr/lib/mythtv/filters/libinvert.so
00156000-00157000 rwxp 00000000 03:43 168983     /usr/lib/mythtv/filters/libinvert.so
00157000-00159000 r-xp 00000000 03:43 41250      /usr/lib/libXinerama.so.1.0.0
00159000-0015a000 rwxp 00001000 03:43 41250      /usr/lib/libXinerama.so.1.0.0
0015a000-0015b000 r-xp 00000000 03:43 168986     /usr/lib/mythtv/filters/liblinearblend.so
0015b000-0015c000 rwxp 00001000 03:43 168986     /usr/lib/mythtv/filters/liblinearblend.so
0015c000-00160000 r-xp 00000000 03:43 41103      /usr/lib/libXfixes.so.3.0.0
00160000-00161000 rwxp 00003000 03:43 41103      /usr/lib/libXfixes.so.3.0.0
00161000-00162000 r-xp 00000000 03:43 168987     /usr/lib/mythtv/filters/libonefield.so
00162000-00163000 rwxp 00000000 03:43 168987     /usr/lib/mythtv/filters/libonefield.so
00163000-0016e000 r-xp 00000000 03:43 247857     /lib/libgcc_s-4.1.1-20060525.so.1
0016e000-0016f000 rwxp 0000a000 03:43 247857     /lib/libgcc_s-4.1.1-20060525.so.1
00171000-00253000 r-xp 00000000 03:43 41464      /usr/lib/libstdc++.so.6.0.8
00253000-00257000 r-xp 000e1000 03:43 41464      /usr/lib/libstdc++.so.6.0.8
00257000-00258000 rwxp 000e5000 03:43 41464      /usr/lib/libstdc++.so.6.0.8
00258000-0025e000 rwxp 00258000 00:00 0
0025e000-0025f000 r-xp 00000000 03:43 168978     /usr/lib/mythtv/filters/libbobdeint.so
0025f000-00260000 rwxp 00000000 03:43 168978     /usr/lib/mythtv/filters/libbobdeint.so
00260000-002f1000 r-xp 00000000 03:43 42454      /usr/lib/libglib-2.0.so.0.1000.3
002f1000-002f2000 rwxp 00091000 03:43 42454      /usr/lib/libglib-2.0.so.0.1000.3
002f4000-00315000 r-xp 00000000 03:43 40328      /usr/lib/libjpeg.so.62.0.0
00315000-00316000 rwxp 00020000 03:43 40328      /usr/lib/libjpeg.so.62.0.0
00318000-0031b000 r-xp 00000000 03:43 42293      /usr/lib/libmythavutil-0.19.so.0.19.0
0031b000-0031c000 rwxp 00002000 03:43 42293      /usr/lib/libmythavutil-0.19.so.0.19.0
0031c000-00327000 r-xp 00000000 03:43 462816     /usr/lib/qt-3.3/plugins/sqldrivers/libqsqlmysql.so
00327000-00328000 rwxp 0000b000 03:43 462816     /usr/lib/qt-3.3/plugins/sqldrivers/libqsqlmysql.so
00328000-0032a000 r-xp 00000000 03:43 247883     /lib/libcom_err.so.2.1
0032a000-0032b000 rwxp 00001000 03:43 247883     /lib/libcom_err.so.2.1
0032b000-0032e000 r-xp 00000000 03:43 40539      /usr/lib/libkrb5support.so.0.0
0032e000-0032f000 rwxp 00002000 03:43 40539      /usr/lib/libkrb5support.so.0.0
0032f000-00338000 r-xp 00000000 03:43 245335     /lib/libnss_files-2.4.so
00338000-00339000 r-xp 00008000 03:43 245335     /lib/libnss_files-2.4.so
00339000-0033a000 rwxp 00009000 03:43 245335     /lib/libnss_files-2.4.so
0033a000-0033c000 r-xp 00000000 03:43 168977     /usr/lib/mythtv/filters/libadjust.so
0033c000-0033d000 rwxp 00001000 03:43 168977     /usr/lib/mythtv/filters/libadjust.so
0033d000-0033f000 r-xp 00000000 03:43 168981     /usr/lib/mythtv/filters/libdenoise3d.so
0033f000-00340000 rwxp 00001000 03:43 168981     /usr/lib/mythtv/filters/libdenoise3d.so
00340000-00342000 r-xp 00000000 03:43 168985     /usr/lib/mythtv/filters/libkerneldeint.so
00342000-00343000 rwxp 00001000 03:43 168985     /usr/lib/mythtv/filters/libkerneldeint.so
00353000-00356000 r-xp 00000000 03:43 639040     /usr/lib/librom1394.so.0.2.1
00356000-00357000 rwxp 00002000 03:43 639040     /usr/lib/librom1394.so.0.2.1
00359000-0035c000 r-xp 00000000 03:43 42935      /usr/lib/libgmodule-2.0.so.0.1000.3
0035c000-0035d000 rwxp 00002000 03:43 42935      /usr/lib/libgmodule-2.0.so.0.1000.3
0035f000-00375000 r-xp 00000000 03:43 41083      /usr/lib/libXmu.so.6.2.0
00375000-00376000 rwxp 00016000 03:43 41083      /usr/lib/libXmu.so.6.2.0
00378000-003db000 r-xp 00000000 03:43 42389      /usr/lib/libmythavformat-0.19.so.0.19.0
003db000-003e1000 rwxp 00063000 03:43 42389      /usr/lib/libmythavformat-0.19.so.0.19.0
003e1000-003e5000 rwxp 003e1000 00:00 0
003e7000-0066b000 r-xp 00000000 03:43 42324      /usr/lib/libmythavcodec-0.19.so.0.19.0
0066b000-00676000 rwxp 00283000 03:43 42324      /usr/lib/libmythavcodec-0.19.so.0.19.0
00676000-006d6000 rwxp 00676000 00:00 0
0070f000-00715000 r-xp 00000000 03:43 639038     /usr/lib/libraw1394.so.8.1.1
00715000-00716000 rwxp 00005000 03:43 639038     /usr/lib/libraw1394.so.8.1.1
0071a000-0072d000 r-xp 00000000 03:43 41261      /usr/lib/libXft.so.2.1.2
0072d000-0072e000 rwxp 00012000 03:43 41261      /usr/lib/libXft.so.2.1.2
00730000-00735000 r-xp 00000000 03:43 41558      /usr/lib/liblirc_client.so.0.1.0
00735000-00736000 rwxp 00004000 03:43 41558      /usr/lib/liblirc_client.so.0.1.0
00738000-00764000 r-xp 00000000 03:43 41990      /usr/lib/libdvdnav.so.4.0.0
00764000-00765000 rwxp 0002c000 03:43 41990      /usr/lib/libdvdnav.so.4.0.0
00765000-007a6000 r-xp 00000000 03:43 247892     /lib/libssl.so.0.9.8a
007a6000-007aa000 rwxp 00040000 03:43 247892     /lib/libssl.so.0.9.8a
007ad000-007ae000 r-xp 00000000 03:43 168979     /usr/lib/mythtv/filters/libconvert.so
007ae000-007af000 rwxp 00000000 03:43 168979     /usr/lib/mythtv/filters/libconvert.so
007c2000-007c4000 r-xp 00000000 03:43 168989     /usr/lib/mythtv/filters/libquickdnr.so
007c4000-007c5000 rwxp 00001000 03:43 168989     /usr/lib/mythtv/filters/libquickdnr.so
007f8000-007fc000 r-xp 00000000 03:43 513437     /usr/X11R6/lib/libXvMCW.so.1.0.0
007fc000-007fd000 rwxp 00003000 03:43 513437     /usr/X11R6/lib/libXvMCW.so.1.0.0
00806000-0080a000 r-xp 00000000 03:43 639041     /usr/lib/libavc1394.so.0.2.1
0080a000-0080b000 rwxp 00003000 03:43 639041     /usr/lib/libavc1394.so.0.2.1
0080d000-00810000 r-xp 00000000 03:43 639043     /usr/lib/libXvMC.so.1.0.0
00810000-00811000 rwxp 00002000 03:43 639043     /usr/lib/libXvMC.so.1.0.0
0083c000-00849000 r-xp 00000000 03:43 639039     /usr/lib/libiec61883.so.0.0.0
00849000-0084a000 rwxp 0000c000 03:43 639039     /usr/lib/libiec61883.so.0.0.0
00850000-00881000 r-xp 00000000 03:43 40920      /usr/lib/liblcms.so.1.0.15
00881000-00882000 rwxp 00030000 03:43 40920      /usr/lib/liblcms.so.1.0.15
00882000-00885000 rwxp 00882000 00:00 0
00887000-00899000 r-xp 00000000 03:43 247895     /lib/libnsl-2.4.so
00899000-0089a000 r-xp 00011000 03:43 247895     /lib/libnsl-2.4.so
0089a000-0089b000 rwxp 00012000 03:43 247895     /lib/libnsl-2.4.so
0089b000-0089d000 rwxp 0089b000 00:00 0
0089f000-00907000 r-xp 00000000 03:43 40926      /usr/lib/libmng.so.1.0.0
00907000-0090a000 rwxp 00067000 03:43 40926      /usr/lib/libmng.so.1.0.0
0090a000-0097d000 r-xp 00000000 03:43 41503      /usr/lib/libkrb5.so.3.2
0097d000-0097f000 rwxp 00073000 03:43 41503      /usr/lib/libkrb5.so.3.2
009e1000-009f0000 r-xp 00000000 03:43 247877     /lib/libresolv-2.4.so
009f0000-009f1000 r-xp 0000e000 03:43 247877     /lib/libresolv-2.4.so
009f1000-009f2000 rwxp 0000f000 03:43 247877     /lib/libresolv-2.4.so
009f2000-009f4000 rwxp 009f2000 00:00 0
009f6000-00a0e000 r-xp 00000000 03:43 41504      /usr/lib/libgssapi_krb5.so.2.2
00a0e000-00a0f000 rwxp 00017000 03:43 41504      /usr/lib/libgssapi_krb5.so.2.2
00a11000-00a35000 r-xp 00000000 03:43 41502      /usr/lib/libk5crypto.so.3.0
00a35000-00a36000 rwxp 00024000 03:43 41502      /usr/lib/libk5crypto.so.3.0
00a38000-00a3c000 r-xp 00000000 03:43 639042     /usr/lib/libXv.so.1.0.0
00a3c000-00a3d000 rwxp 00003000 03:43 639042     /usr/lib/libXv.so.1.0.0
00a3f000-00a44000 r-xp 00000000 03:43 38032      /usr/lib/libartsc.so.0.0.0
00a44000-00a45000 rwxp 00005000 03:43 38032      /usr/lib/libartsc.so.0.0.0
00a4b000-00a4c000 r-xp 00a4b000 00:00 0          [vdso]
00a4c000-00a65000 r-xp 00000000 03:43 247360     /lib/ld-2.4.so
00a65000-00a66000 r-xp 00018000 03:43 247360     /lib/ld-2.4.so
00a66000-00a67000 rwxp 00019000 03:43 247360     /lib/ld-2.4.so
00a69000-00b96000 r-xp 00000000 03:43 247685     /lib/libc-2.4.so
00b96000-00b98000 r-xp 0012d000 03:43 247685     /lib/libc-2.4.so
00b98000-00b99000 rwxp 0012f000 03:43 247685     /lib/libc-2.4.so
00b99000-00b9c000 rwxp 00b99000 00:00 0
00b9e000-00bc1000 r-xp 00000000 03:43 247837     /lib/libm-2.4.so
00bc1000-00bc2000 r-xp 00022000 03:43 247837     /lib/libm-2.4.so
00bc2000-00bc3000 rwxp 00023000 03:43 247837     /lib/libm-2.4.so
00bc5000-00bc7000 r-xp 00000000 03:43 247850     /lib/libdl-2.4.so
00bc7000-00bc8000 r-xp 00001000 03:43 247850     /lib/libdl-2.4.so
00bc8000-00bc9000 rwxp 00002000 03:43 247850     /lib/libdl-2.4.so
00bcb000-00bdd000 r-xp 00000000 03:43 40205      /usr/lib/libz.so.1.2.3
00bdd000-00bde000 rwxp 00011000 03:43 40205      /usr/lib/libz.so.1.2.3
00be0000-00be2000 r-xp 00000000 03:43 40946      /usr/lib/libXau.so.6.0.0
00be2000-00be3000 rwxp 00001000 03:43 40946      /usr/lib/libXau.so.6.0.0
00be5000-00bea000 r-xp 00000000 03:43 40951      /usr/lib/libXdmcp.so.6.0.0
00bea000-00beb000 rwxp 00004000 03:43 40951      /usr/lib/libXdmcp.so.6.0.0
00bed000-00ce6000 r-xp 00000000 03:43 40952      /usr/lib/libX11.so.6.2.0
00ce6000-00cea000 rwxp 000f9000 03:43 40952      /usr/lib/libX11.so.6.2.0
00cec000-00cfb000 r-xp 00000000 03:43 40981      /usr/lib/libXext.so.6.4.0
00cfb000-00cfc000 rwxp 0000e000 03:43 40981      /usr/lib/libXext.so.6.4.0
00cfe000-00d0e000 r-xp 00000000 03:43 247847     /lib/libpthread-2.4.so
00d0e000-00d0f000 r-xp 0000f000 03:43 247847     /lib/libpthread-2.4.so
00d0f000-00d10000 rwxp 00010000 03:43 247847     /lib/libpthread-2.4.so
00d10000-00d12000 rwxp 00d10000 00:00 0
00d14000-00d33000 r-xp 00000000 03:43 247852     /lib/libexpat.so.0.5.0
00d33000-00d35000 rwxp 0001e000 03:43 247852     /lib/libexpat.so.0.5.0
00d37000-00da2000 r-xp 00000000 03:43 41252      /usr/lib/libfreetype.so.6.3.8
00da2000-00da5000 rwxp 0006a000 03:43 41252      /usr/lib/libfreetype.so.6.3.8
00da7000-00dce000 r-xp 00000000 03:43 40930      /usr/lib/libpng12.so.0.1.2.8
00dce000-00dcf000 rwxp 00026000 03:43 40930      /usr/lib/libpng12.so.0.1.2.8
00dd1000-00dd9000 r-xp 00000000 03:43 40953      /usr/lib/libXrender.so.1.3.0
00dd9000-00dda000 rwxp 00007000 03:43 40953      /usr/lib/libXrender.so.1.3.0
00ddc000-00df3000 r-xp 00000000 03:43 41270      /usr/lib/libICE.so.6.3.0
00df3000-00df4000 rwxp 00016000 03:43 41270      /usr/lib/libICE.so.6.3.0
00df4000-00df6000 rwxp 00df4000 00:00 0
00df8000-00dfb000 r-xp 00000000 03:43 41063      /usr/lib/libXrandr.so.2.0.0
00dfb000-00dfc000 rwxp 00002000 03:43 41063      /usr/lib/libXrandr.so.2.0.0
00dfc000-00f1b000 r-xp 00000000 03:43 114780     /usr/lib/mysql/libmysqlclient.so.15.0.0
00f1b000-00f5d000 rwxp 0011e000 03:43 114780     /usr/lib/mysql/libmysqlclient.so.15.0.0
00f5d000-00f5e000 rwxp 00f5d000 00:00 0
00f5e000-0107d000 r-xp 00000000 03:43 247890     /lib/libcrypto.so.0.9.8a
0107d000-01090000 rwxp 0011e000 03:43 247890     /lib/libcrypto.so.0.9.8a
01090000-01093000 rwxp 01090000 00:00 0
0156a000-0156b000 --xp 0156a000 00:00 0
0156b000-01f6b000 rwxp 0156b000 00:00 0
02000000-029e8000 r-xp 00000000 03:43 42449      /usr/lib/libmythtv-0.19.so.0.19.0
029e8000-02ade000 rwxp 009e8000 03:43 42449      /usr/lib/libmythtv-0.19.so.0.19.0
02ade000-02ae2000 rwxp 02ade000 00:00 0
03287000-03288000 --xp 03287000 00:00 0
03288000-03c88000 rwxp 03288000 00:00 0
03c88000-03c89000 --xp 03c88000 00:00 0
03c89000-04689000 rwxp 03c89000 00:00 0
04ee1000-0570b000 r-xp 00000000 03:43 229973     /usr/lib/qt-3.3/lib/libqt-mt.so.3.3.5
0570b000-0574c000 rwxp 00829000 03:43 229973     /usr/lib/qt-3.3/lib/libqt-mt.so.3.3.5
0574c000-05750000 rwxp 0574c000 00:00 0
05a8d000-05ae2000 r-xp 00000000 03:43 40574      /usr/lib/libXt.so.6.0.0
05ae2000-05ae6000 rwxp 00054000 03:43 40574      /usr/lib/libXt.so.6.0.0
05c17000-05ce8000 r-xp 00000000 03:43 247898     /lib/libasound.so.2.0.0
05ce8000-05ced000 rwxp 000d0000 03:43 247898     /lib/libasound.so.2.0.0
05cf9000-05cfd000 r-xp 00000000 03:43 42931      /usr/lib/libgthread-2.0.so.0.1000.3
05cfd000-05cfe000 rwxp 00003000 03:43 42931      /usr/lib/libgthread-2.0.so.0.1000.3
05d00000-05d05000 r-xp 00000000 03:43 247897     /lib/libcrypt-2.4.so
05d05000-05d06000 r-xp 00004000 03:43 247897     /lib/libcrypt-2.4.so
05d06000-05d07000 rwxp 00005000 03:43 247897     /lib/libcrypt-2.4.so
05d07000-05d2e000 rwxp 05d07000 00:00 0
060d0000-060d4000 r-xp 00000000 03:43 42948      /usr/lib/libXxf86vm.so.1.0.0
060d4000-060d5000 rwxp 00003000 03:43 42948      /usr/lib/libXxf86vm.so.1.0.0
060d7000-06135000 r-xp 00000000 03:43 44956      /usr/lib/libGL.so.1.2
06135000-06137000 rwxp 0005d000 03:43 44956      /usr/lib/libGL.so.1.2
06137000-06138000 rwxp 06137000 00:00 0
0613a000-06141000 r-xp 00000000 03:43 44927      /usr/lib/libdrm.so.2.0.0
06141000-06142000 rwxp 00006000 03:43 44927      /usr/lib/libdrm.so.2.0.0
0619d000-06216000 r-xp 00000000 03:43 44985      /usr/lib/libGLU.so.1.3.060402
06216000-06217000 rwxp 00078000 03:43 44985      /usr/lib/libGLU.so.1.3.060402
06217000-06218000 --xp 06217000 00:00 0
06218000-06c18000 rwxp 06218000 00:00 0
0755e000-075d2000 r-xp 00000000 03:43 41661      /usr/lib/libmp3lame.so.0.0.0
075d2000-075d4000 rwxp 00074000 03:43 41661      /usr/lib/libmp3lame.so.0.0.0
075d4000-07628000 rwxp 075d4000 00:00 0
0762a000-07910000 r-xp 00000000 03:43 42078      /usr/lib/libmyth-0.19.so.0.19.0
07910000-07936000 rwxp 002e5000 03:43 42078      /usr/lib/libmyth-0.19.so.0.19.0
07936000-07937000 rwxp 07936000 00:00 0
08048000-0810c000 r-xp 00000000 03:43 883147     /usr/bin/mythbackend
0810c000-0810d000 rwxp 000c4000 03:43 883147     /usr/bin/mythbackend
08389000-08640000 rwxp 08389000 00:00 0          [heap]
accf3000-accf4000 --xp accf3000 00:00 0
accf4000-ad6f4000 rwxp accf4000 00:00 0
aeaf6000-aeaf7000 --xp aeaf6000 00:00 0
aeaf7000-af4f7000 rwxp aeaf7000 00:00 0
b08f9000-b08fa000 --xp b08f9000 00:00 0
b08fa000-b12fa000 rwxp b08fa000 00:00 0
b12fa000-b12fb000 --xp b12fa000 00:00 0
b12fb000-b1cfb000 rwxp b12fb000 00:00 0
b1cfb000-b1cfc000 --xp b1cfb000 00:00 0
b1cfc000-b26fc000 rwxp b1cfc000 00:00 0
b26fc000-b26fd000 --xp b26fc000 00:00 0
b26fd000-b30fd000 rwxp b26fd000 00:00 0
b32fe000-b36a1000 rwxp b32fe000 00:00 0
b36a1000-b3700000 --xp b36a1000 00:00 0
b3784000-b37a5000 rwxp b3784000 00:00 0
b37a5000-b37a6000 --xp b37a5000 00:00 0
b37a6000-b41a6000 rwxp b37a6000 00:00 0
b41a6000-b41a7000 --xp b41a6000 00:00 0
b41a7000-b4ba7000 rwxp b41a7000 00:00 0
b4ba7000-b4ba8000 --xp b4ba7000 00:00 0
b4ba8000-b55a8000 rwxp b4ba8000 00:00 0
b55a8000-b55a9000 --xp b55a8000 00:00 0
b55a9000-b5fa9000 rwxp b55a9000 00:00 0
b5fa9000-b5faa000 --xp b5fa9000 00:00 0
b5faa000-b69aa000 rwxp b5faa000 00:00 0
b69aa000-b69ab000 --xp b69aa000 00:00 0
b69ab000-b73ab000 rwxp b69ab000 00:00 0
b73ab000-b73ac000 --xp b73ab000 00:00 0
b73ac000-b7dac000 rwxp b73ac000 00:00 0
b7dac000-b7fac000 r-xp 00000000 03:43 36296      /usr/lib/locale/locale-archive
b7fac000-b7fb9000 rwxp b7fac000 00:00 0
b7fd2000-b7fd3000 rwxp b7fd2000 00:00 0
bfdbc000-bfdd0000 rwxp bfdbc000 00:00 0          [stack]
bfdd0000-bfdd2000 rw-p bfdd0000 00:00 0