I used to have aMule hanging after 4-12 hours (the athlon problem) but 1.1.x and now 1.2.0 don't hang anymore. I use kernel 2.4.23 and mostly Fedora core packages. I compile aMule and wxWindows myself. I don't know what solved it, but maybe people with crash problems should try updating their glibc, glib, gtk+ and various other libraries that aMule uses and see if that fixes the problem. You can check the libraries used with ldd:
#ldd /usr/local/bin/amule
libwx_gtk2-2.4.so => /usr/lib/libwx_gtk2-2.4.so (0x40035000)
libz.so.1 => /usr/lib/libz.so.1 (0x40500000)
libstdc++.so.5 => /usr/lib/libstdc++.so.5 (0x40511000)
libm.so.6 => /lib/i686/libm.so.6 (0x405c9000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x405eb000)
libpthread.so.0 => /lib/i686/libpthread.so.0 (0x405f3000)
libc.so.6 => /lib/i686/libc.so.6 (0x40645000)
libgtk-x11-2.0.so.0 => /usr/local/lib/libgtk-x11-2.0.so.0 (0x40780000)
libgdk-x11-2.0.so.0 => /usr/local/lib/libgdk-x11-2.0.so.0 (0x409d0000)
libgobject-2.0.so.0 => /usr/local/lib/libgobject-2.0.so.0 (0x40a3b000)
libglib-2.0.so.0 => /usr/local/lib/libglib-2.0.so.0 (0x40a70000)
libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x40ada000)
libatk-1.0.so.0 => /usr/local/lib/libatk-1.0.so.0 (0x40bb9000)
libgdk_pixbuf-2.0.so.0 => /usr/local/lib/libgdk_pixbuf-2.0.so.0 (0x40bd3000)
libpangoxft-1.0.so.0 => /usr/local/lib/libpangoxft-1.0.so.0 (0x40be6000)
libpangox-1.0.so.0 => /usr/local/lib/libpangox-1.0.so.0 (0x40c08000)
libpango-1.0.so.0 => /usr/local/lib/libpango-1.0.so.0 (0x40c15000)
libgmodule-2.0.so.0 => /usr/local/lib/libgmodule-2.0.so.0 (0x40c48000)
libdl.so.2 => /lib/libdl.so.2 (0x40c4d000)
libgthread-2.0.so.0 => /usr/local/lib/libgthread-2.0.so.0 (0x40c50000)
libpng12.so.0 => /usr/lib/libpng12.so.0 (0x40c55000)
libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x40c78000)
libtiff.so.3 => /usr/lib/libtiff.so.3 (0x40c96000)
libpangoft2-1.0.so.0 => /usr/local/lib/libpangoft2-1.0.so.0 (0x40cd7000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
libXrandr.so.2 => /usr/X11R6/lib/libXrandr.so.2 (0x40cfb000)
libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x40cff000)
libXft.so.2 => /usr/X11R6/lib/libXft.so.2 (0x40d0d000)
libXrender.so.1 => /usr/X11R6/lib/libXrender.so.1 (0x40d1f000)
libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x40d27000)
libfreetype.so.6 => /usr/local/lib/libfreetype.so.6 (0x40d4f000)
libexpat.so.0 => /usr/lib/libexpat.so.0 (0x40da6000)
