Fresh install of xfce4-4.3.99.2-r1 on gentoo. Compiled fine. Get the following error when trying to run as a normal user. Runs fine when running as 'root'. No other problems identified yet with xfce4.4 and friends. ~ $ xfce4-appfinder *** glibc detected *** xfce4-appfinder: free(): invalid next size (fast): 0x080870a8 *** ======= Backtrace: ========= /lib/libc.so.6[0xb782ac92] /lib/libc.so.6(__libc_free+0x87)[0xb782c2e7] /usr/lib/libglib-2.0.so.0(g_free+0x3d)[0xb7927aed] ======= Memory map: ======== 08048000-08054000 r-xp 00000000 03:47 1166151 /usr/bin/xfce4-appfinder 08054000-08055000 rw-p 0000b000 03:47 1166151 /usr/bin/xfce4-appfinder 08055000-08097000 rw-p 08055000 00:00 0 [heap] b7300000-b7321000 rw-p b7300000 00:00 0 b7321000-b7400000 ---p b7321000 00:00 0 b74ac000-b74b5000 r-xp 00000000 03:47 1051162 /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libgcc_s.so.1 b74b5000-b74b6000 rw-p 00009000 03:47 1051162 /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libgcc_s.so.1 b74c1000-b74cb000 r-xp 00000000 03:47 1837445 /usr/lib/gtk-2.0/2.10.0/engines/libxfce.so b74cb000-b74cc000 rw-p 00009000 03:47 1837445 /usr/lib/gtk-2.0/2.10.0/engines/libxfce.so b74cc000-b74d4000 r-xp 00000000 03:47 1317451 /lib/libnss_files-2.5.so b74d4000-b74d6000 rw-p 00007000 03:47 1317451 /lib/libnss_files-2.5.so b74d6000-b74de000 r-xp 00000000 03:47 1317476 /lib/libnss_nis-2.5.so b74de000-b74e0000 rw-p 00007000 03:47 1317476 /lib/libnss_nis-2.5.so b74e0000-b74f2000 r-xp 00000000 03:47 1317473 /lib/libnsl-2.5.so b74f2000-b74f4000 rw-p 00011000 03:47 1317473 /lib/libnsl-2.5.so b74f4000-b74f6000 rw-p b74f4000 00:00 0 b74f6000-b74fc000 r-xp 00000000 03:47 1317477 /lib/libnss_compat-2.5.so b74fc000-b74fe000 rw-p 00005000 03:47 1317477 /lib/libnss_compat-2.5.so b74fe000-b7500000 rw-p b74fe000 00:00 0 b7500000-b7513000 r-xp 00000000 03:47 1317331 /lib/libpthread-2.5.so b7513000-b7514000 r--p 00012000 03:47 1317331 /lib/libpthread-2.5.so b7514000-b7515000 rw-p 00013000 03:47 1317331 /lib/libpthread-2.5.so b7515000-b7518000 rw-p b7515000 00:00 0 b7518000-b753f000 r-xp 00000000 03:47 1004066 /usr/lib/libexpat.so.1.5.0 b753f000-b7541000 rw-p 00027000 03:47 1004066 /usr/lib/libexpat.so.1.5.0 b7541000-b7545000 r-xp 00000000 03:47 789447 /usr/lib/libXdmcp.so.6.0.0 b7545000-b7546000 rw-p 00003000 03:47 789447 /usr/lib/libXdmcp.so.6.0.0 b7546000-b7548000 r-xp 00000000 03:47 788827 /usr/lib/libXau.so.6.0.0 b7548000-b7549000 rw-p 00001000 03:47 788827 /usr/lib/libXau.so.6.0.0 b7549000-b7550000 r-xp 00000000 03:47 1317465 /lib/librt-2.5.so b7550000-b7552000 rw-p 00006000 03:47 1317465 /lib/librt-2.5.so b7552000-b7576000 r-xp 00000000 03:47 869543 /usr/lib/libpng12.so.0.14.0 b7576000-b7577000 rw-p 00024000 03:47 869543 /usr/lib/libpng12.so.0.14.0 b7577000-b7578000 rw-p b7577000 00:00 0 b7578000-b758b000 r-xp 00000000 03:47 1377152 /lib/libz.so.1.2.3 b758b000-b758c000 rw-p 00012000 03:47 1377152 /lib/libz.so.1.2.3 b758c000-b760b000 r-xp 00000000 03:47 1431252 /usr/lib/libfreetype.so.6.3.8 b760b000-b760e000 rw-p 0007f000 03:47 1431252 /usr/lib/libfreetype.so.6.3.8 b760e000-b763d000 r-xp 00000000 03:47 968351 /usr/lib/libpangoft2-1.0.so.0.1400.7 b763d000-b763e000 rw-p 0002e000 03:47 968351 /usr/lib/libpangoft2-1.0.so.0.1400.7 b763e000-b7642000 r-xp 00000000 03:47 1593927 /usr/lib/libXfixes.so.3.1.0 b7642000-b7643000 rw-p 00003000 03:47 1593927 /usr/lib/libXfixes.so.3.1.0 b7643000-b764c000 r-xp 00000000 03:47 789044 /usr/lib/libXcursor.so.1.0.2 b764c000-b764d000 rw-p 00009000 03:47 789044 /usr/lib/libXcursor.so.1.0.2 b764d000-b764e000 rw-p b764d000 00:00 0 b764e000-b7651000 r-xp 00000000 03:47 1396674 /usr/lib/libXrandr.so.2.0.0 b7651000-b7652000 rw-p 00002000 03:47 1396674 /usr/lib/libXrandr.so.2.0.0 b7652000-b7659000 r-xp 00000000 03:47 1396342 /usr/lib/libXi.so.6.0.0 b7659000-b765a000 rw-p 00006000 03:47 1396342 /usr/lib/libXi.so.6.0.0 b765a000-b7661000 r-xp 00000000 03:47 789052 /usr/lib/libXrender.so.1.3.0 b7661000-b7662000 rw-p 00007000 03:47 789052 /usr/lib/libXrender.so.1.3.0 b7662000-b7671000 r-xp 00000000 03:47 789503 /usr/lib/libXext.so.6.4.0 b7671000-b7672000 rw-p 0000f000 03:47 789503 /usr/lib/libXext.so.6.4.0 b7672000-b769e000 r-xp 00000000 03:47 870793 /usr/lib/libfontconfig.so.1.2.0 b769e000-b76a6000 rw-p 0002c000 03:47 870793 /usr/lib/libfontconfig.so.1.2.0 b76a6000-b76a7000 rw-p b76a6000 00:00 0 b76a7000-b77a3000 r-xp 00000000 03:47 1201232 /usr/lib/libX11.so.6.2.0 b77a3000-b77a7000 rw-p 000fc000 03:47 1201232 /usr/lib/libX11.so.6.2.0 b77a7000-b77bc000 r-xp 00000000 03:47 803816 /usr/lib/libICE.so.6.3.0 b77bc000-b77bd000 rw-p 00014000 03:47 803816 /usr/lib/libICE.so.6.3.0 b77bd000-b77bf000 rw-p b77bd000 00:00 0 b77bf000-b77c7000 r-xp 00000000 03:47 789533 /usr/lib/libSM.so.6.0.0 b77c7000-b77c8000 rw-p 00007000 03:47 789533 /usr/lib/libSM.so.6.0.0 b77c8000-b78e8000 r-xp 00000000 03:47 1317498 /lib/libc-2.5.so b78e8000-b78e9000 r--p 00120000 03:47 1317498 /lib/libc-2.5.so b78e9000-b78eb000 rw-p 00121000 03:47 1317498 /lib/libc-2.5.so b78eb000-b78ee000 rw-p b78eb000 00:00 0 b78ee000-b798e000 r-xp 00000000 03:47 1394150 /usr/lib/libglib-2.0.so.0.1200.4 b798e000-b798f000 rw-p 000a0000 03:47 1394150 /usr/lib/libglib-2.0.so.0.1200.4 b798f000-b7991000 r-xp 00000000 03:47 1316506 /lib/libdl-2.5.so b7991000-b7993000 rw-p 00001000 03:47 1316506 /lib/libdl-2.5.so b7993000-b7994000 rw-p b7993000 00:00 0 b7994000-b7996000 r-xp 00000000 03:47 1394142 /usr/lib/libgmodule-2.0.so.0.1200.4 b7996000-b7997000 rw-p 00002000 03:47 1394142 /usr/lib/libgmodule-2.0.so.0.1200.4 b7997000-b79d3000 r-xp 00000000 03:47 1394024 /usr/lib/libgobject-2.0.so.0.1200.4 b79d3000-b79d4000 rw-p 0003c000 03:47 1394024 /usr/lib/libgobject-2.0.so.0.1200.4 b79d4000-b7a5a000 r-xp 00000000 03:47 1590866 /usr/lib/libcairo.so.2.9.2 b7a5a000-b7a5c000 rw-p 00085000 03:47 1590866 /usr/lib/libcairo.so.2.9.2 b7a5c000-b7a96000 r-xp 00000000 03:47 968546 /usr/lib/libpango-1.0.so.0.1400.7 b7a96000-b7a98000 rw-p 00039000 03:47 968546 /usr/lib/libpango-1.0.so.0.1400.7 b7a98000-b7aa0000 r-xp 00000000 03:47 968366 /usr/lib/libpangocairo-1.0.so.0.1400.7 b7aa0000-b7aa1000 rw-p 00007000 03:47 968366 /usr/lib/libpangocairo-1.0.so.0.1400.7 b7aa1000-b7ac4000 r-xp 00000000 03:47 1314762 /lib/libm-2.5.so b7ac4000-b7ac6000 rw-p 00022000 03:47 1314762 /lib/libm-2.5.so b7ac6000-b7ac7000 rw-p b7ac6000 00:00 0 b7ac7000-b7adc000 r-xp 00000000 03:47 1773647 /usr/lib/libgdk_pixbuf-2.0.so.0.1000.6 b7adc000-b7add000 rw-p 00014000 03:47 1773647 /usr/lib/libgdk_pixbuf-2.0.so.0.1000.6 b7add000-b7af5000 r-xp 00000000 03:47 1605765 /usr/lib/libatk-1.0.so.0.1213.0 b7af5000-b7af7000 rw-p 00017000 03:47 1605765 /usr/lib/libatk-1.0.so.0.1213.0 b7af7000-b7b75000 r-xp 00000000 03:47 1773414 /usr/lib/libgdk-x11-2.0.so.0.1000.6 b7b75000-b7b78000 rw-p 0007e000 03:47 1773414 /usr/lib/libgdk-x11-2.0.so.0.1000.6 b7b78000-b7b84000 r-xp 00000000 03:47 1282168 /usr/lib/libxfce4util.so.4.0.0 b7b84000-b7b85000 rw-p 0000b000 03:47 1282168 /usr/lib/libxfce4util.so.4.0.0 b7b85000-b7b86000 rw-p b7b85000 00:00 0 b7b86000-b7ebb000 r-xp 00000000 03:47 1773128 /usr/lib/libgtk-x11-2.0.so.0.1000.6 b7ebb000-b7ec1000 rw-p 00335000 03:47 1773128 /usr/lib/libgtk-x11-2.0.so.0.1000.6 b7ec1000-b7ec2000 rw-p b7ec1000 00:00 0 b7ec2000-b7f08000 r-xp 00000000 03:47 1740137 /usr/lib/libxfcegui4.so.4.2.2 b7f08000-b7f0a000 rw-p 00046000 03:47 1740137 /usr/lib/libxfcegui4.so.4.2.2 b7f0a000-b7f0b000 rw-p b7f0a000 00:00 0 b7f0c000-b7f0d000 r-xp 00000000 03:47 1314936 /usr/lib/gconv/ISO8859-1.so b7f0d000-b7f0f000 rw-p 00001000 03:47 1314936 /usr/lib/gconv/ISO8859-1.so b7f0f000-b7f16000 r--s 00000000 03:47 1048808 /usr/lib/gconv/gconv-modules.cache b7f16000-b7f17000 r-xp b7f16000 00:00 0 [vdso] b7f17000-b7f31000 r-xp 00000000 03:47 1317336 /lib/ld-2.5.so b7f31000-b7f32000 r--p 00019000 03:47 1317336 /lib/ld-2.5.so b7f32000-b7f33000 rw-p 0001a000 03:47 1317336 /lib/ld-2.5.so bf879000-bf88f000 rw-p bf879000 00:00 0 [stack] Aborted
Guess since there are new releases, and I'm not able to reproduce this bug => fixing as invalid. If it is still the case please reopen, and provide a better backtrace. The attached backtrace shows only that it crashes during a free() and it doesn't say where at all which makes it impossible to locate it in the source.