Am 19.08.2009 um 19:12 schrieb Mikhail Kuzminsky:

As it was discussed here, there are NUMA problems w/Nehalem on a set of Linux distributions/kernels. I was informed that may be old OpenSuSE 10.3 default kernel (2.6.22) works w/Nehalem OK in the sense of NUMA, i.e. gives right /sys/devices/system/node content.

I moved Western Digital SATA HDD w/SuSE 10.3 installed (on dual Barcelona server) to dual Nehalem server (master HDD on Nehalem server) with Supermicro X8DTi mobo.

But loading of SuSE 10.3 on Nehalem server was not successful. Grub loader (which menu.lst configuration uses "by-id" identification of disk partitions) works OK. But linux kernel booting didn't finish successfully: /boot/04-udev.sh script (which task is udev initialization) - I think, it's from initrd content - do not see root partition (1st partition on HDD) !
At the boot I see the messages
....
SCSI subsystem initialized
ACPI Exception (processor_core_0787): Processor device isn't present
....
<a set of messages about usb>
...
Trying manual resume from /dev/sda2 /* it's swap partition*/
resume device /dev/sda2 not found (ignoring)

There might be an entry "append resume=..." either in lilo.conf or grub's menu.lst

...
Waiting for device /dev/disk/by-id/scsi-SATA-WDC_WD<name_of_disk>- part1 ... /* echo from udev.sh */

Maybe the disk id is different form the one recored in /etc/fstab. What about using plain /dev/sda1 or alike, or mounting by volume label?

-- Reuti



and then the proposal to try again. After finish of this script I don't see any HDDs in /dev.


BIOS setting for this SATA device is "enhanced". "compatible" mode gives the same result.

What may be the source of the problem ? May be HDD driver used by initrd ?
Mikhail Kuzminsky
Computer Assistance to Chemical Research Center
Zelinsky Institute of Organic Chemistry RAS
Moscow
PS. If I see (after finish of udev.sh script) the content of /sys - it's right in NUMA sense, i.e.
/sys/devices/system/node contains normal node0 and node1.

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