I performed the update yesterday that included installing kernel 2.6.9-42.0.2.EL and replacing ethereal with wireshark. First, the trivial... Wireshark would not run from the KDE menu without editing the menu to change the command from "wireshark" to "kdesu wireshark" because dumpcap is at usr/sbin/dumpcap instead of /usr/bin/dumpcap . Making the change causes wireshark to open root password dialog like ethereal, which it replaced. (And which makes sense.)
Now, the puzzling. This is an AMD Athlon XP 2600+ on an ASUS A7N8X deluxe ver 2.0 m/b. The symptom is that ntpd refuses to sync. Dropping back to kernel 2.6.9-34.0.2.EL restores ntpd to proper operation. My first thought was that the smp code must have been incorporated in the non-smp kernel because the system mis-behaves exactly as it has in the past when Anaconda mistakenly installed the smp kernel. What clouds the picture is that when I checked the updates repository, I found both http://isoredirect.centos.org/centos/4/updates/i386/RPMS/kernel-smp-2.6.9-42... and http://isoredirect.centos.org/centos/4/updates/i386/RPMS/kernel-2.6.9-42.0.2... which then made me wonder if there was a glitch in the build process.
Has anyone else seen this?