I have duplicated this error several times on multiple computers. I am using FC4 and trying to get Samba going using ADS security. I have successfuly done this several times using FC1 and FC2...untill Windows Server 2003 SP1! Thanks Microsoft. I have modified all the appropriate files previously done in FC1 and FC2. When I type the command "net ads join -U administrator" I get the following error message...
Using short domain name -- workgroup
Joined 'FEDORA4' to realm 'DOMAIN.COM'
*** glibc detected *** net: free(): invalid pointer: 0x001c8db0 *** ======= Backtrace: ========= /lib/libc.so.6[0x2a8424] /lib/libc.so.6(__libc_free+0x77)[0x2a895f]
/lib/libcom_err.so.2(remove_error_table+0x4b)[0x1c9abb]
/usr/lib/libkrb5.so.3[0x1668c4]
/usr/lib/libkrb5.so.3[0x1665c7]
/usr/lib/libkrb5.so.3[0x1b79da]
/lib/ld-linux.so.2[0xb29058]
/lib/libc.so.6(exit+0xc5)[0x26fc69]
/lib/libc.so.6(__libc_start_main+0xce)[0x259dee]
net[0x4b7ca1]
======= Memory map: ========
00111000-00116000 r-xp 00000000 fd:00 590922 /lib/libcrypt-2.3.5.so
00116000-00117000 r-xp 00004000 fd:00 590922 /lib/libcrypt-2.3.5.so
00117000-00118000 rwxp 00005000 fd:00 590922 /lib/libcrypt-2.3.5.so
00118000-0013f000 rwxp 00118000 00:00 0
0013f000-00156000 r-xp 00000000 fd:00 7809706 /usr/lib/libgssapi_krb5.so.2.2
00156000-00157000 rwxp 00017000 fd:00 7809706 /usr/lib/libgssapi_krb5.so.2.2
00157000-001c6000 r-xp 00000000 fd:00 7809705 /usr/lib/libkrb5.so.3.2
001c6000-001c9000 rwxp 0006e000 fd:00 7809705 /usr/lib/libkrb5.so.3.2
001c9000-001cb000 r-xp 00000000 fd:00 590918 /lib/libcom_err.so.2.1
001cb000-001cc000 rwxp 00001000 fd:00 590918 /lib/libcom_err.so.2.1
001cc000-00200000 r-xp 00000000 fd:00 7810827 /usr/lib/libldap-2.2.so.7.0.16
00200000-00202000 rwxp 00033000 fd:00 7810827 /usr/lib/libldap-2.2.so.7.0.16
00202000-0020f000 r-xp 00000000 fd:00 14254945 /usr/lib/liblber-2.2.so.7.0.16
0020f000-00210000 rwxp 0000c000 fd:00 14254945 /usr/lib/liblber-2.2.so.7.0.16
00210000-00222000 r-xp 00000000 fd:00 7807756 /usr/lib/libz.so.1.2.2.2
00222000-00223000 rwxp 00011000 fd:00 7807756 /usr/lib/libz.so.1.2.2.2
00223000-00225000 r-xp 00000000 fd:00 7864595 /usr/lib/gconv/UTF-16.so
00225000-00227000 rwxp 00001000 fd:00 7864595 /usr/lib/gconv/UTF-16.so
00227000-00229000 r-xp 00000000 fd:00 7864502 /usr/lib/gconv/IBM850.so
00229000-0022b000 rwxp 00001000 fd:00 7864502 /usr/lib/gconv/IBM850.so
00232000-00241000 r-xp 00000000 fd:00 590915 /lib/libresolv-2.3.5.so
00241000-00242000 r-xp 0000e000 fd:00 590915 /lib/libresolv-2.3.5.so
00242000-00243000 rwxp 0000f000 fd:00 590915 /lib/libresolv-2.3.5.so
00243000-00245000 rwxp 00243000 00:00 0
00245000-00369000 r-xp 00000000 fd:00 590910 /lib/libc-2.3.5.so
00369000-0036b000 r-xp 00124000 fd:00 590910 /lib/libc-2.3.5.so
0036b000-0036d000 rwxp 00126000 fd:00 590910 /lib/libc-2.3.5.so
0036d000-0036f000 rwxp 0036d000 00:00 0
0036f000-003a4000 r-xp 00000000 fd:00 589953 /lib/libssl.so.0.9.7f
003a4000-003a7000 rwxp 00035000 fd:00 589953 /lib/libssl.so.0.9.7f
003a7000-003b0000 r-xp 00000000 fd:00 589918 /lib/libgcc_s-4.0.1-20050727.so.1
003b0000-003b1000 rwxp 00009000 fd:00 589918 /lib/libgcc_s-4.0.1-20050727.so.1
003f1000-00406000 r-xp 00000000 fd:00 14254946 /usr/lib/libsasl2.so.2.0.20
00406000-00407000 rwxp 00015000 fd:00 14254946 /usr/lib/libsasl2.so.2.0.20
0042a000-0043c000 r-xp 00000000 fd:00 590921 /lib/libnsl-2.3.5.so
0043c000-0043d000 r-xp 00011000 fd:00 590921 /lib/libnsl-2.3.5.so
0043d000-0043e000 rwxp 00012000 fd:00 590921 /lib/libnsl-2.3.5.so
0043e000-00440000 rwxp 0043e000 00:00 0
00488000-00672000 r-xp 00000000 fd:00 7803393 /usr/bin/net
00672000-00683000 rwxp 001ea000 fd:00 7803393 /usr/bin/net
00683000-00693000 rwxp 00683000 00:00 0
00745000-00747000 r-xp 00000000 fd:00 590912 /lib/libdl-2.3.5.so
00747000-00748000 r-xp 00001000 fd:00 590912 /lib/libdl-2.3.5.so
00748000-00749000 rwxp 00002000 fd:00 590912 /lib/libdl-2.3.5.so
007ab000-007af000 r-xp 00000000 fd:00 589874 /lib/libnss_dns-2.3.5.so
007af000-007b0000 r-xp 00003000 fd:00 589874 /lib/libnss_dns-2.3.5.so
007b0000-007b1000 rwxp 00004000 fd:00 589874 /lib/libnss_dns-2.3.5.so
009e1000-009e8000 r-xp 00000000 fd:00 7810431 /usr/lib/libpopt.so.0.0.0
009e8000-009e9000 rwxp 00006000 fd:00 7810431 /usr/lib/libpopt.so.0.0.0
00b1b000-00b35000 r-xp 00000000 fd:00 590850 /lib/ld-2.3.5.so
00b35000-00b36000 r-Aborted
I also get the same errot when I upgrade Samba to 3.0.20rc2.
On a side note, it also appears that SWAT does not start correctly in FC4
Thanks for any help provided.

Sam