Public bug reported:

When I export a song, either wav or ogg, at the end of exportation
program crashes. I report the command line dump after crashing.

*** glibc detected *** lmms: free(): invalid pointer: 0x0bfff510 ***
======= Backtrace: =========
/lib/i386-linux-gnu/libc.so.6(+0x6b961)[0x3dba961]
/lib/i386-linux-gnu/libc.so.6(+0x6d28b)[0x3dbc28b]
/lib/i386-linux-gnu/libc.so.6(cfree+0x6d)[0x3dbf41d]
/usr/lib/i386-linux-gnu/libstdc++.so.6(_ZdlPv+0x21)[0x62624d1]
/usr/lib/i386-linux-gnu/libstdc++.so.6(_ZdaPv+0x1d)[0x626252d]
/usr/lib/lmms/libZynAddSubFxCore.so(_ZN4EchoD1Ev+0x34)[0x214f0d4]
/usr/lib/lmms/libZynAddSubFxCore.so(_ZN4EchoD0Ev+0x22)[0x214f122]
/usr/lib/lmms/libZynAddSubFxCore.so(_ZN9EffectMgrD1Ev+0x34)[0x2148db4]
/usr/lib/lmms/libZynAddSubFxCore.so(_ZN9EffectMgrD0Ev+0x22)[0x2148e12]
/usr/lib/lmms/libZynAddSubFxCore.so(_ZN4PartD1Ev+0xfa)[0x212b7da]
/usr/lib/lmms/libZynAddSubFxCore.so(_ZN6MasterD1Ev+0x33)[0x21230f3]
/usr/lib/lmms/libZynAddSubFxCore.so(_ZN16LocalZynAddSubFxD1Ev+0x2f)[0x211d14f]
/usr/lib/lmms/libzynaddsubfx.so(_ZN21ZynAddSubFxInstrument10initPluginEv+0x3d)[0x24773fd]
/usr/lib/lmms/libzynaddsubfx.so(_ZN21ZynAddSubFxInstrument12reloadPluginEv+0x51)[0x2477d41]
/usr/lib/lmms/libzynaddsubfx.so(_ZN21ZynAddSubFxInstrument11qt_metacallEN11QMetaObject4CallEiPPv+0xa3)[0x2479953]
/usr/lib/libQtCore.so.4(_ZN11QMetaObject8metacallEP7QObjectNS_4CallEiPPv+0x3a)[0x2ac6ba]
/usr/lib/libQtCore.so.4(_ZN14QMetaCallEvent13placeMetaCallEP7QObject+0x36)[0x2b6e16]
/usr/lib/libQtCore.so.4(_ZN7QObject5eventEP6QEvent+0x227)[0x2bb3b7]
/usr/lib/libQtGui.so.4(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0xb4)[0x7fbd24]
/usr/lib/libQtGui.so.4(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x14e)[0x8008ce]
/usr/lib/libQtCore.so.4(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0x7b)[0x2a60bb]
/usr/lib/libQtCore.so.4(_ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData+0x2d9)[0x2a9c79]
/usr/lib/libQtCore.so.4(_ZN16QCoreApplication16sendPostedEventsEP7QObjecti+0x2d)[0x2a9e0d]
/usr/lib/libQtCore.so.4(+0x1823c4)[0x2d33c4]
/lib/i386-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x1c8)[0x401baa8]
/lib/i386-linux-gnu/libglib-2.0.so.0(+0x41270)[0x401c270]
/lib/i386-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x64)[0x401c524]
/usr/lib/libQtCore.so.4(_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE+0x5c)[0x2d353c]
/usr/lib/libQtGui.so.4(+0x1e1775)[0x8af775]
/usr/lib/libQtCore.so.4(_ZN10QEventLoop13processEventsE6QFlagsINS_17ProcessEventsFlagEE+0x49)[0x2a5289]
/usr/lib/libQtCore.so.4(_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE+0xf2)[0x2a5522]
/usr/lib/libQtGui.so.4(_ZN7QDialog4execEv+0x103)[0xd19003]
lmms(_ZN4song13exportProjectEv+0x6d9)[0x80e8ce9]
lmms(_ZN4song11qt_metacallEN11QMetaObject4CallEiPPv+0x1eb)[0x80e9fbb]
/usr/lib/libQtCore.so.4(_ZN11QMetaObject8metacallEP7QObjectNS_4CallEiPPv+0x3a)[0x2ac6ba]
/usr/lib/libQtCore.so.4(_ZN11QMetaObject8activateEP7QObjectPKS_iPPv+0x27f)[0x2bc4ff]
/usr/lib/libQtGui.so.4(_ZN7QAction9triggeredEb+0x49)[0x7f48d9]
/usr/lib/libQtGui.so.4(_ZN7QAction8activateENS_11ActionEventE+0x78)[0x7f4b38]
/usr/lib/libQtGui.so.4(+0x5b88ad)[0xc868ad]
/usr/lib/libQtGui.so.4(+0x5bf16b)[0xc8d16b]
/usr/lib/libQtGui.so.4(_ZN5QMenu17mouseReleaseEventEP11QMouseEvent+0x10e)[0xc8dffe]
/usr/lib/libQtGui.so.4(_ZN7QWidget5eventEP6QEvent+0x62a)[0x85413a]
/usr/lib/libQtGui.so.4(_ZN5QMenu5eventEP6QEvent+0x67)[0xc8e4d7]
/usr/lib/libQtGui.so.4(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0xb4)[0x7fbd24]
/usr/lib/libQtGui.so.4(_ZN12QApplication6notifyEP7QObjectP6QEvent+0xa81)[0x801201]
/usr/lib/libQtCore.so.4(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0x7b)[0x2a60bb]
/usr/lib/libQtGui.so.4(_ZN19QApplicationPrivate14sendMouseEventEP7QWidgetP11QMouseEventS1_S1_PS1_R8QPointerIS0_Eb+0xeb)[0x7fcc3b]
/usr/lib/libQtGui.so.4(+0x1b84c3)[0x8864c3]
/usr/lib/libQtGui.so.4(_ZN12QApplication15x11ProcessEventEP7_XEvent+0xcf6)[0x884746]
/usr/lib/libQtGui.so.4(+0x1e1b84)[0x8afb84]
/lib/i386-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x1c8)[0x401baa8]
/lib/i386-linux-gnu/libglib-2.0.so.0(+0x41270)[0x401c270]
/lib/i386-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x64)[0x401c524]
/usr/lib/libQtCore.so.4(_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE+0x5c)[0x2d353c]
/usr/lib/libQtGui.so.4(+0x1e1775)[0x8af775]
/usr/lib/libQtCore.so.4(_ZN10QEventLoop13processEventsE6QFlagsINS_17ProcessEventsFlagEE+0x49)[0x2a5289]
/usr/lib/libQtCore.so.4(_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE+0xf2)[0x2a5522]
/usr/lib/libQtCore.so.4(_ZN16QCoreApplication4execEv+0xac)[0x2a9ecc]
lmms(main+0x88b)[0x811413b]
/lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x3d65e37]
lmms[0x80abb51]
======= Memory map: ========
00110000-0014f000 r-xp 00000000 08:01 16843      /usr/lib/libQtXml.so.4.7.2
0014f000-00150000 r--p 0003e000 08:01 16843      /usr/lib/libQtXml.so.4.7.2
00150000-00151000 rw-p 0003f000 08:01 16843      /usr/lib/libQtXml.so.4.7.2
00151000-003db000 r-xp 00000000 08:01 16909      /usr/lib/libQtCore.so.4.7.2
003db000-003e2000 r--p 00289000 08:01 16909      /usr/lib/libQtCore.so.4.7.2
003e2000-003e3000 rw-p 00290000 08:01 16909      /usr/lib/libQtCore.so.4.7.2
003e3000-004aa000 r-xp 00000000 08:01 4900       /usr/lib/libasound.so.2.0.0
004aa000-004ae000 r--p 000c6000 08:01 4900       /usr/lib/libasound.so.2.0.0
004ae000-004af000 rw-p 000ca000 08:01 4900       /usr/lib/libasound.so.2.0.0
004af000-0050e000 r-xp 00000000 08:01 4856       /usr/lib/libSDL-1.2.so.0.11.3
0050e000-0050f000 r--p 0005e000 08:01 4856       /usr/lib/libSDL-1.2.so.0.11.3
0050f000-00510000 rw-p 0005f000 08:01 4856       /usr/lib/libSDL-1.2.so.0.11.3
00510000-0053a000 rw-p 00000000 00:00 0 
0053a000-00561000 r-xp 00000000 08:01 5509       /usr/lib/libportaudio.so.2.0.0
00561000-00562000 r--p 00026000 08:01 5509       /usr/lib/libportaudio.so.2.0.0
00562000-00563000 rw-p 00027000 08:01 5509       /usr/lib/libportaudio.so.2.0.0
00563000-005a2000 r-xp 00000000 08:01 2097       /usr/lib/libpulse.so.0.12.3
005a2000-005a3000 r--p 0003e000 08:01 2097       /usr/lib/libpulse.so.0.12.3
005a3000-005a4000 rw-p 0003f000 08:01 2097       /usr/lib/libpulse.so.0.12.3
005a4000-005e0000 r-xp 00000000 08:01 5350       /usr/lib/libjack.so.0.1.0
005e0000-005e1000 r--p 0003c000 08:01 5350       /usr/lib/libjack.so.0.1.0
005e1000-005e2000 rw-p 0003d000 08:01 5350       /usr/lib/libjack.so.0.1.0
005e4000-005f9000 r-xp 00000000 08:01 1306499    
/lib/i386-linux-gnu/libpthread-2.13.so
005f9000-005fa000 r--p 00015000 08:01 1306499    
/lib/i386-linux-gnu/libpthread-2.13.so
005fa000-005fb000 rw-p 00016000 08:01 1306499    
/lib/i386-linux-gnu/libpthread-2.13.so
005fb000-005fd000 rw-p 00000000 00:00 0 
005fd000-00602000 r-xp 00000000 08:01 5454       /usr/lib/libogg.so.0.7.0
00602000-00603000 r--p 00004000 08:01 5454       /usr/lib/libogg.so.0.7.0
00603000-00604000 rw-p 00005000 08:01 5454       /usr/lib/libogg.so.0.7.0
00604000-00629000 r-xp 00000000 08:01 5687       /usr/lib/libvorbis.so.0.4.5
00629000-0062a000 r--p 00025000 08:01 5687       /usr/lib/libvorbis.so.0.4.5
0062a000-0062b000 rw-p 00026000 08:01 5687       /usr/lib/libvorbis.so.0.4.5
0062b000-00632000 r-xp 00000000 08:01 5691       /usr/lib/libvorbisfile.so.3.3.4
00632000-00633000 r--p 00006000 08:01 5691       /usr/lib/libvorbisfile.so.3.3.4
Aborted

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: lmms 0.4.10-1ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: fglrx
Architecture: i386
Date: Fri Jul  1 12:31:55 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: lmms
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: lmms (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 natty

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https://bugs.launchpad.net/bugs/804240

Title:
  it crashes at the end of exportation phase

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