Hi, The following is a workaround for a problem I've experienced: The installation of SuSE 8.1 on a dual Xeon 2.4 GHz machine with 3ware IDE RAID 7500-4 (4 x 120 GB HD, booting from the RAID) went OK but then the machine failed to boot. The message was 3w_xxxx: scsi 0: Unit #0: command (0xc33d5c00) timed out, reseting card ... scsi: device set offline - not ready or command retry failed after host reset: host 0 channel 0 id 1 lun 0 ... It turned out the problem was with the k_smp*.rpm kernel on installation CDs. I booted from the installation CD (SMP kernel is not used in this case) and updated the kernel (I downloaded k_smp-2.4.19-163.i586.rpm via FTP). The new kernel then booted OK. -- Alexandr.Malusek@imv.liu.se
Hi Alex, Out of curiosity, does the SMP kernel see *4* processors? We have seen that the P4s with Hyperthreading appear as 2 processors to the Linux kernel. PeterB On Friday 10 January 2003 03:44 pm, Alexandr Malusek wrote:
Hi,
The following is a workaround for a problem I've experienced:
The installation of SuSE 8.1 on a dual Xeon 2.4 GHz machine with 3ware IDE RAID 7500-4 (4 x 120 GB HD, booting from the RAID) went OK but then the machine failed to boot. The message was
3w_xxxx: scsi 0: Unit #0: command (0xc33d5c00) timed out, reseting card ... scsi: device set offline - not ready or command retry failed after host reset: host 0 channel 0 id 1 lun 0 ...
It turned out the problem was with the k_smp*.rpm kernel on installation CDs. I booted from the installation CD (SMP kernel is not used in this case) and updated the kernel (I downloaded k_smp-2.4.19-163.i586.rpm via FTP). The new kernel then booted OK.
-- -- Proud to be a SuSE Linux User since 5.2 --
This is off topic, but the last SMP P4 box I set up saw 4 procs when HT was enabled. But... it really doesn't buy you anything in terms of performance, since the chip basically only has one cache and one floating point. In fact, if you run anything like Oracle, you get screwed on the licensing, since they license by proc. - Herman Peter B Van Campen wrote:
Hi Alex,
Out of curiosity, does the SMP kernel see *4* processors? We have seen that the P4s with Hyperthreading appear as 2 processors to the Linux kernel.
PeterB
On Friday 10 January 2003 03:44 pm, Alexandr Malusek wrote:
Hi,
The following is a workaround for a problem I've experienced:
The installation of SuSE 8.1 on a dual Xeon 2.4 GHz machine with 3ware IDE RAID 7500-4 (4 x 120 GB HD, booting from the RAID) went OK but then the machine failed to boot. The message was
3w_xxxx: scsi 0: Unit #0: command (0xc33d5c00) timed out, reseting card ... scsi: device set offline - not ready or command retry failed after host reset: host 0 channel 0 id 1 lun 0 ...
It turned out the problem was with the k_smp*.rpm kernel on installation CDs. I booted from the installation CD (SMP kernel is not used in this case) and updated the kernel (I downloaded k_smp-2.4.19-163.i586.rpm via FTP). The new kernel then booted OK.
Peter B Van Campen
The installation of SuSE 8.1 on a dual Xeon 2.4 GHz machine with 3ware IDE RAID 7500-4 (4 x 120 GB HD, booting from the RAID) ...
Out of curiosity, does the SMP kernel see *4* processors? We have seen that the P4s with Hyperthreading appear as 2 processors to the Linux kernel.
If CPU hyper-threading is enabled in the BIOS then the SuSE kernel reports 4 CPUs. According to the motherboard manual, this feature is disabled by default in the AwardBIOS. I haven't had time to do any performance tests yet. I don't expect any significant performance improvement with the additional 2 CPUs. -- Alexandr.Malusek@imv.liu.se
participants (3)
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Alexandr Malusek -
Herman Knief -
Peter B Van Campen