On Friday 22 May 2009, Peter Hopfgartner wrote: ... >> Would it make sense to install the kernel from CentOS 5.2? Any >> contraindications? >As others have said, you should still have the 5.2 kernel around. Just change >the grub.conf and reboot. It makes no sense to start swapping around hardware >until you've tried to revert the kernel. >That said, we've seen hangs and strange kernel messages on several different >server platforms (HP DL140g3: NMI-related messages logged, HP DL160g5: hangs >semi-randomly) with the new 5.3 kernels. All of these problems could be >worked around by booting with the kernel option "nmi_watchdog=0". >/Peter I am experiencing the same issue with random reboots after a 5.3 upgrade. Sometimes it will go for days without rebooting then today it has rebooted 6 times at random times. I have modified grub.conf to go back to 2.6.18-92.1.22.el5xen on my dom0 and my only domU so we will see what happens (or hopefully doesn't happen) the next few days. I have a 3.0 P4 CPU with HT that does not support 64-bit so it's running an i686 kernel. It does have a Broadcom NIC like an earlier post was suspicious of: 02:08.0 Ethernet controller: Intel Corporation 82562EZ 10/100 Ethernet Controller (rev 02) 02:09.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5703X Gigabit Ethernet (rev 02) I have upgraded about 8 other servers with no random reboot problems but they are all running on a newer processors with a 64-bit kernel. -- Dave Jones