SMP AMD64 (Tyan S2882) problems.
Hello, world!\n
I have a new Opteron server based on Tyan Thunder K8S Pro (S882GNR) board. The storage is 3ware 7506 controller with 4 disks in RAID-5. The system has 4GB of RAM, and runs 2.6.1 kernel.
Problem 1:
I have tried to run a test load (multiple kernel compiles using
make -j4, copying a filesystem subtrees, etc), and I have noticed that all IRQs go to the CPU0 only. My /proc/interrupts says:
# cat /proc/interrupts
CPU0 CPU1
0: 3188815 0 IO-APIC-edge timer
1: 10387 0 IO-APIC-edge i8042
2: 0 0 XT-PIC cascade
9: 0 0 IO-APIC-edge acpi
24: 46802 0 IO-APIC-level eth0
27: 384890 0 IO-APIC-level 3ware Storage Controller
NMI: 903323 881935
LOC: 3188129 3188158
ERR: 0
MIS: 0Is it normal? How can I set up some IRQ balancing (or at least hard-wire 3ware for CPU1 and eth0 for CPU0)?
Output of "dmesg" is at http://www.fi.muni.cz/~kas/tmp/dmesg-K8SPro.txt
Other problems are not so important or lkml-related:
Problem 2: the 3ware controller does not work correctly on the first PCI bus (slot 1 and 2) - in slot 1 it hangs under bigger load (e.g. an array rebuild), in slot 2 it hangs during boot in 3ware BIOS. It is probably not Linux-specific, but has anyone seen the same problem?
Problem 3:
What the "PCI-DMA: Disabling IOMMU." message in dmesg output means?
Problem 4:
Does Linux support the hardware sensors on this board? The i2c driver AMD8111 seems to be working, but what sensors driver should I use?
Problem 5:
Is there a 3ware configuration program (tw_cli), which works on AMD64?
Thanks,
-Yenya
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| Jan "Yenya" Kasprzak <kas at {fi.muni.cz - work | yenya.net - private}> |
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| http://www.fi.muni.cz/~kas/ Czech Linux Homepage: http://www.linux.cz/ |
| I actually have a lot of admiration and respect for the PATA knowledge |
| embedded in drivers/ide. But I would never call it pretty:) -Jeff Garzik |