[apport] gtk-ocr crashed with SIGSEGV when converting

Binary package hint: gocr-gtk

I clicked on settings, and the path to gocr looked correct, so I didn't change anything but hit "OK". When I tried to convert an image, the error on the command line was "sh: /usr/bin/goc: not found" and in the settings dialog, "/usr/bin/goc" appeared, with a strange rectangle appended to it. I replaced this rectangle with an "r", and hit "convert" again. Then it died with
"*** glibc detected *** gtk-ocr: munmap_chunk(): invalid pointer: 0x080801a0 ***
Segmentation fault (core dumped)"

I tried it again (while filling out this form) and this time I got:
*** glibc detected *** gtk-ocr: free(): invalid next size (fast): 0x0807f7b0 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6[0xb7b657cd]
/lib/tls/i686/cmov/libc.so.6(cfree+0x90)[0xb7b68e30]
/usr/lib/libglib-1.2.so.0(g_free+0x21)[0xb7d862c1]
/usr/lib/libglib-1.2.so.0[0xb7d847d9]
/usr/lib/libglib-1.2.so.0(g_hook_free+0xbc)[0xb7d81d3c]
/usr/lib/libglib-1.2.so.0(g_hook_unref+0x16f)[0xb7d81f2f]
/usr/lib/libglib-1.2.so.0[0xb7d84c5f]
/usr/lib/libglib-1.2.so.0[0xb7d8548d]
/usr/lib/libglib-1.2.so.0(g_main_run+0x3f)[0xb7d8568f]
/usr/lib/libgtk-1.2.so.0(gtk_main+0xba)[0xb7e6c466]
gtk-ocr(main+0x2a)[0x804b5fa]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc)[0xb7b13ebc]
gtk-ocr[0x8049d01]
======= Memory map: ========
08048000-0804c000 r-xp 00000000 03:07 1262051 /usr/bin/gtk-ocr
0804c000-0804d000 rw-p 00003000 03:07 1262051 /usr/bin/gtk-ocr
0804d000-080af000 rw-p 0804d000 00:00 0 [heap]
b7900000-b7921000 rw-p b7900000 00:00 0
b7921000-b7a00000 ---p b7921000 00:00 0
b7a9d000-b7aa8000 r-xp 00000000 03:07 113357 /lib/libgcc_s.so.1
b7aa8000-b7aa9000 rw-p 0000a000 03:07 113357 /lib/libgcc_s.so.1
b7aa9000-b7aad000 r-xp 00000000 03:07 1248190 /usr/lib/libXfixes.so.3.1.0
b7aad000-b7aae000 rw-p 00003000 03:07 1248190 /usr/lib/libXfixes.so.3.1.0
b7aae000-b7ab5000 r-xp 00000000 03:07 1254850 /usr/lib/libXrender.so.1.3.0
b7ab5000-b7ab6000 rw-p 00006000 03:07 1254850 /usr/lib/libXrender.so.1.3.0
b7ab6000-b7abe000 r-xp 00000000 03:07 1247855 /usr/lib/libXcursor.so.1.0.2
b7abe000-b7abf000 rw-p 00007000 03:07 1247855 /usr/lib/libXcursor.so.1.0.2
b7abf000-b7ac8000 r-xp 00000000 03:07 114546 /lib/tls/i686/cmov/libnss_files-2.5.so
b7ac8000-b7aca000 rw-p 00008000 03:07 114546 /lib/tls/i686/cmov/libnss_files-2.5.so
b7aca000-b7ad2000 r-xp 00000000 03:07 114550 /lib/tls/i686/cmov/libnss_nis-2.5.so
b7ad2000-b7ad4000 rw-p 00007000 03:07 114550 /lib/tls/i686/cmov/libnss_nis-2.5.so
b7ad4000-b7ae7000 r-xp 00000000 03:07 113704 /lib/tls/i686/cmov/libnsl-2.5.so
b7ae7000-b7ae9000 rw-p 00012000 03:07 113704 /lib/tls/i686/cmov/libnsl-2.5.so
b7ae9000-b7aeb000 rw-p b7ae9000 00:00 0
b7aeb000-b7af2000 r-xp 00000000 03:07 113706 /lib/tls/i686/cmov/libnss_compat-2.5.so
b7af2000-b7af4000 rw-p 00006000 03:07 113706 /lib/tls/i686/cmov/libnss_compat-2.5.so
b7af4000-b7af5000 rw-p b7af4000 00:00 0
b7af5000-b7af9000 r-xp 00000000 03:07 1249322 /usr/lib/libXdmcp.so.6.0.0
b7af9000-b7afa000 rw-p 00003000 03:07 1249322 /usr/lib/libXdmcp.so.6.0.0
b7afa000-b7afb000 rw-p b7afa000 00:00 0
b7afb000-b7afd000 r-xp 00000000 03:07 1246893 /usr/lib/libXau.so.6.0.0
b7afd000-b7afe000 rw-p 00001000 03:07 1246893 /usr/lib/libXau.so.6.0.0
b7afe000-b7c39000 r-xp 00000000 03:07 113632 /lib/tls/i686/cmov/libc-2.5.so
b7c39000-b7c3a000 r--p 0013b000 03:07 113632 /lib/tls/i686/cmov/libc-2.5.so
b7c3a000-b7c3c000 rw-p 0013c000 03:07 113632 /lib/tls/i686/cmov/libc-2.5.so
b7c3c000-b7c3f000 rw-p b7c3c000 00:00 0
b7c3f000-b7c64000 r-xp 00000000 03:07 113647 /lib/tls/i686/cmov/libm-2.5.so
b7c64000-b7c66000 rw-p 00024000 03:07 113647 /lib/tls/i686/cmov/libm-2.5.so
b7c66000-b7d53000 r-xp 00000000 03:07 1246973 /usr/lib/libX11.so.6.2.0
b7d53000-b7d57000 rw-p 000ed000 03:07 1246973 /usr/lib/libX11.so.6.2.0
b7d57000-b7d64000 r-xp 00000000 03:07 1249355 /usr/lib/libXext.so.6.4.0
b7d64000-b7d65000 rw-p 0000d000 03:07 1249355 /usr/lib/libXext.so.6.4.0
b7d65000-b7d66000 rw-p b7d65000 00:00 0
b7d66000-b7d6d000 r-xp 00000000 03:07 1248469 /usr/lib/libXi.so.6.0.0
b7d6d000-b7d6e000 rw-p 00006000 03:07 1248469 /usr/lib/libXi.so.6.0.0
b7d6e000-b7d70000 r-xp 00000000 03:07 113646 /lib/tls/i686/cmov/libdl-2.5.so
b7d70000-b7d72000 rw-p 00001000 03:07 113646 /lib/tls/i686/cmov/libdl-2.5.so
b7d72000-b7d97000 r-xp 00000000 03:07 1259251 /usr/lib/libglib-1.2.so.0.0.10
b7d97000-b7d98000 rw-p 00025000 03:07 1259251 /usr/lib/libglib-1.2.so.0.0.10
b7d98000-b7d9a000 r-xp 00000000 03:07 1259256 /usr/lib/libgmoduleAborted (core dumped)

ProblemType: Crash
Architecture: i386
Date: Wed Apr 11 11:02:33 2007
DistroRelease: Ubuntu 7.04
ExecutablePath: /usr/bin/gtk-ocr
Package: gocr-gtk 0.41-1ubuntu1
PackageArchitecture: i386
ProcCmdline: gtk-ocr hier.pcx
ProcCwd: /home/thomas
ProcEnviron:
 SHELL=/bin/bash
 PATH=/home/thomas/local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:/usr/games
 LANG=de_DE.UTF-8
 LANGUAGE=de_DE:de:en_GB:en
Signal: 11
SourcePackage: gocr
StacktraceTop:
 ?? () from /lib/tls/i686/cmov/libc.so.6
 ?? () from /usr/lib/libgtk-1.2.so.0
 ?? ()
 ?? () from /usr/lib/libgtk-1.2.so.0
 ?? ()
Uname: Linux thorium2 2.6.20-14-generic #2 SMP Mon Apr 2 20:37:49 UTC 2007 i686 GNU/Linux
UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin plugdev scanner video