I have just installed glibc-2.2.3-pre1 and have found just one problem. Neither java nor jre from jdk1.3.0_01 will not run. It worked perfectly with glibc 2.2.2 Linux kernel 2.4.3-pre8 i686 gcc 2.95.3 (patched as per the announcement and rebuilt under glibc 2.2.2) binutils 2.11.90.0.1