[SOLVED] Core2Quad Q6600 --> Haswell Xeon E3-1230

[pakjebakmeel]

Hiya,

I've upgraded my server in the past, it went from an Intel Atom D2700 to an Intel Core2Quad Q6600 without major issues. I'm using march=native and I'm looking at upgrading my motherboard, CPU and memory again. The replacement CPU will be an Intel Xeon E3-1230, as it worked before using Atom --> Core2 I suppose Core2 --> Xeon Haswell should work too?

Anything in particular I need to take into account? Last time I upgraded I just swapped the hardware and it booted fine. Then I recompiled the kernel with the correct CPU selection and recompiled world afterwards. I'm now using Core2/Xeon CPU in the kernel so that will not change.

I think I can swap the hardware and recompile world?

old: https://www.asus.com/Motherboards/P5WDG2_WS_Professional/
new: http://ark.intel.com/products/71385/Intel-Server-Board-S1200V3RPS

Any advise? Concerns?

[pakjebakmeel]

I just found this topic:

http://forums-web2.gentoo.org/viewtopic-t-962254-start-0-postdays-0-postorder-asc-highlight-.html?sid=4c7f484fe667ec871acccb2591344743

So I think I should be fine.. Memory should arrive today so I'm good to go

EDIT:

I have swapped the hardware and it booted just fine. My new CPU has hyperthreading and the old CPU did not so I wanted to enable the additional logical CPU's. Hyperthreading is enabled in the BIOS.

CONFIG_NR_CPUS was still set to 4. When I change CONFIG_NR_CPUS to 8 and enable the hyperthreading scheduler the system does not boot.

When booting I can see 8 penguins during kernel dmesg. This means it has 4 cores with HT enabled making 8 logical CPU's. The dmesg looks fine but when loading OpenRC it hangs on "waiting for uevents to be processed" and gets stuck there. When I recompile the kernel with CONFIG_NR_CPUS =4 and reboot it shows 4 penguins and it boots fine.

so changing CONFIG_NR_CPUS=4 to CONFIG_NR_CPUS=8 makes it hang on uevents..

any clues or hints?

EDIT 2:

Seems to be ok now. It was still bootable off the kernel with CONFIG_NR_CPUS=4 but after rebuilding it my machine wasn't booting anymore. Did't get to the part of uevents. Booted a live USB, rebuilt system, rebuilt world and rebooted.

Now it came up with some stack trace during boot. The trace mentioned something about ZFS and my MPT2SAS module. I thought it would be a long shot and I built the MPT2SAS into the kernel instead of using a module and it works fine now.

Not quite sure what the problem was exactly but it's solved now.