Redhat 6.0 has a problem with some applications linked against glibc-2.0 and/or libc-5. An example of such an app is acrobat4 (and 3), wordperfect 8. Not all old apps break; rvplayer (5.0) still works fine! I enclose a gdb dump which seems to indicate that glibc-2.1 may be the culprit since the sigsev comes eary in the initialization process for glibc. tiger(zsh)[677]gdb /usr/local/Acrobat4/Reader/intellinux/bin/acroread core GNU gdb 4.17.0.11 with Linux support Copyright 1998 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux"... Core was generated by `/usr/local/Acrobat4/Reader/intellinux/bin/acroread'. Program terminated with signal 11, Segmentation fault. Reading symbols from /usr/local/Acrobat4/Reader/intellinux/lib/libreadcore.so...done. Reading symbols from /usr/local/Acrobat4/Reader/intellinux/lib/libAGM.so... done. Reading symbols from /usr/local/Acrobat4/Reader/intellinux/lib/libCoolType.so...done. Reading symbols from /usr/local/Acrobat4/Reader/intellinux/lib/libICC.so... done. Reading symbols from /usr/local/X11R6.3/lib/libXt.so.6...done. Reading symbols from /usr/local/X11R6.3/lib/libXext.so.6...done. Reading symbols from /usr/local/X11R6.3/lib/libX11.so.6...done. Reading symbols from /usr/i486-linux-libc5/lib/libm.so.5...done. Reading symbols from /lib/libdl.so.1...done. Reading symbols from /usr/i486-linux-libc5/lib/libc.so.5...done. Reading symbols from /usr/local/X11R6.3/lib/libSM.so.6...done. Reading symbols from /usr/local/X11R6.3/lib/libICE.so.6...done. Reading symbols from /lib/libc.so.6...done. Reading symbols from /lib/ld-linux.so.2...done. Reading symbols from /lib/ld-linux.so.1...done. #0 0x408461cb in __getopt_clean_environment (env=0x0) at getopt_init.c:60 getopt_init.c:60: No such file or directory. (gdb) bt #0 0x408461cb in __getopt_clean_environment (env=0x0) at getopt_init.c:60 #1 0x407c2b9a in _init (arg=0x0) at ../sysdeps/unix/sysv/linux/init-first.c:87 #2 0x4000234b in _dl_boot ()
Acrobat 4 is linked against libc5; from the core dump, I'd say you probably have some glibc (or other) libraries in /usr/local/lib that it is picking up.
I don't know where your /usr/local/X11R6.3 libraries are coming from in the trace you gave. I am using both those apps on a 6.0 system