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List:       linux-usb-users
Subject:    [Linux-usb-users] intel ServerWorks chipset and kernel 2.6.0-test
From:       Anatoly Pugachev <mator () gsib ! ru>
Date:       2003-08-29 12:09:43
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Hi!
Installed 2.6.0-test4 on my linux with Intel SHG2 motherboard, ServerWorks
chipset (latest bios on date is 1.0.9 for this board). 
I have dual xeon configuration and pci LSI megaraid adapter .

Here's what i got working and not:

Booting plain/clean 2.6.0-test4 don't gives me USB host controller
working properly, lines from /var/log/dmesg regarging USB : 

SCSI subsystem initialized
drivers/usb/core/usb.c: registered new driver usbfs
drivers/usb/core/usb.c: registered new driver hub
ACPI: Unable to set IRQ for PCI Interrupt Link [LN1] (likely buggy ACPI BIOS). \
                Aborting ACPI-based IRQ routing. Try pci=noacpi or acpi=off
ERROR: Unable to locate IOAPIC for IRQ -19/nACPI: Unable to set IRQ for PCI Interrupt \
Link [LN1] (likely buggy ACPI BIOS). Aborting ACPI-bas ed IRQ routing. Try pci=noacpi \
                or acpi=off
ERROR: Unable to locate IOAPIC for IRQ -19/nACPI: Unable to set IRQ for PCI Interrupt \
Link [LN1] (likely buggy ACPI BIOS). Aborting ACPI-bas ed IRQ routing. Try pci=noacpi \
                or acpi=off
ERROR: Unable to locate IOAPIC for IRQ -19/nACPI: Unable to set IRQ for PCI Interrupt \
Link [LN1] (likely buggy ACPI BIOS). Aborting ACPI-bas ed IRQ routing. Try pci=noacpi \
                or acpi=off
ERROR: Unable to locate IOAPIC for IRQ -19/n<7>IOAPIC[1]: Set PCI routing entry (3-4 \
-> 0xa9 -> IRQ 20 Mode:1 Active:1) 00:00:02[A] -> 3-4 -> IRQ 20

and the same booting 2.4.22 ->

Aug 27 15:38:46 p4 kernel: usb.c: registered new driver usbdevfs
Aug 27 15:38:46 p4 kernel: usb.c: registered new driver hub
Aug 27 15:38:46 p4 kernel: usb-ohci.c: USB OHCI at membase 0xf89f6000, IRQ -19
Aug 27 15:38:46 p4 kernel: usb-ohci.c: usb-00:0f.2, ServerWorks OSB4/CSB5 OHCI USB \
                Controller
Aug 27 15:38:46 p4 kernel: usb.c: new USB bus registered, assigned bus number 1
Aug 27 15:38:46 p4 kernel: usb-ohci.c: request interrupt -19 failed
Aug 27 15:38:46 p4 kernel: usb.c: USB bus 1 deregistered
Aug 27 15:38:46 p4 kernel: Trying to vfree() nonexistent vm area (f89f6000)
Aug 27 15:38:46 p4 kernel: usb.c: deregistering driver usbdevfs
Aug 27 15:38:46 p4 kernel: hub.c: usb_hub_thread exiting
Aug 27 15:38:46 p4 kernel: usb.c: deregistering driver hub 

You can see it's IRQ problem (-19).

As a solution for 2.4.22 kernel i've used kernel option 'noapic' on
command line to get my USB host controller working.

For 2.6.0-test4 kernel, first i've tryed "pci=noacpi" - result was
unable to load kernel at all, booting stopped at megaraid driver.
The second try was "acpi=ht" in kernel parameters and linux has
succesfully loaded. Trying to load ohci-hcd also has succeed.
So i got my usb flash disk working.
--
/mator


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