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.