My three basement machines got upgraded to 2.6.9-34.EL by nightly yum cron job. The two i686 seem to be fine. However, on the old i586 machine I got hole bunch of warnings. Haven't attempted rebooting it with new kernel yet. The warnings are:
WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/amd76x_edac.ko needs unknown symbol edac_mc_del_mc WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/amd76x_edac.ko needs unknown symbol edac_mc_find_mci_by_pdev WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/amd76x_edac.ko needs unknown symbol edac_mc_add_mc WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/amd76x_edac.ko needs unknown symbol edac_mc_alloc WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/amd76x_edac.ko needs unknown symbol edac_mc_handle_ce WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/amd76x_edac.ko needs unknown symbol edac_mc_handle_ue WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/e7xxx_edac.ko needs unknown symbol edac_mc_del_mc WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/e7xxx_edac.ko needs unknown symbol edac_mc_find_mci_by_pdev WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/e7xxx_edac.ko needs unknown symbol edac_mc_add_mc WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/e7xxx_edac.ko needs unknown symbol edac_mc_alloc WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/e7xxx_edac.ko needs unknown symbol edac_mc_handle_ue_no_info WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/e7xxx_edac.ko needs unknown symbol edac_mc_find_csrow_by_page WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/e7xxx_edac.ko needs unknown symbol edac_mc_handle_ce WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/e7xxx_edac.ko needs unknown symbol edac_mc_handle_ue WARNING: /lib/modules/2.6.9-34.EL/kernel/drivers/edac/e7xxx_edac.ko needs unknown symbol edac_mc_handle_ce_no_info