Messages in this thread | | | Date | Thu, 19 Feb 2004 16:27:39 -0300 (BRT) | From | Frédéric L. W. Meunier <> | Subject | Re: IO-APIC works on Windows and FreeBSD but not Linux ? |
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I wrote on 2004-01-24 0:57:44:
> I never got IO-APIC to work with my ECS K7VTA3 5.0 (KT333) on > Linux 2.4 and 2.6. The first problem was at boot time with my > network. It wouldn't give an IRQ or something to the lan, be > it the onboard Realtek or a 3Com 3C905CX-TXNM.
Just tested with 2.6.3, and it still happens.
> ACPI with or without it was even worse, but I never needed > it.
Everything seems to work fine with it now.
> It worked fine on Windows XP Professional SP1. Some days ago > I installed FreeBSD 5.2 and now noticed it gave me IRQ18 for > the onboard lan, IRQ22 for the onboard sound, and so on, and > there's the following in /var/log/messages:
> Jan 23 15:27:07 pervalidus kernel: ioapic0: Assuming intbase > of 0 > Jan 23 15:27:07 pervalidus kernel: ioapic0 <Version 0.3> irqs > 0-23 on motherboard
> I'm just surprised IO-APIC works with it but not Linux.
Still surprised, because on it everything works if I use IO-APIC with or without ACPI.
Here are the differences in /proc/pci (- is ACPI with IO-APIC, + IO-APIC):
I/O at 0xb800 [0xb81f]. Bus 0, device 16, function 3: USB Controller: VIA Technologies, Inc. USB 2.0 (rev 130). - IRQ 21. + IRQ 19. Master Capable. Latency=32. Non-prefetchable 32 bit memory at 0xdd035000 [0xdd0350ff]. Bus 0, device 17, function 0: ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge (rev 0). Bus 0, device 17, function 1: IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev 6). - IRQ 20. + IRQ 27. Master Capable. Latency=32. I/O at 0xbc00 [0xbc0f]. Bus 0, device 17, function 5:
And /proc/interrupts:
- 9: 0 IO-APIC-level acpi - 14: 1138 IO-APIC-edge ide0 + 14: 777 IO-APIC-edge ide0 - 18: 24 IO-APIC-level eth0 - 21: 290 IO-APIC-level ehci_hcd, uhci_hcd, uhci_hcd, uhci_hcd + 21: 99 IO-APIC-level uhci_hcd, uhci_hcd, uhci_hcd
> I reported it months ago - > http://www.uwsg.iu.edu/hypermail/linux/kernel/0306.2/1646.html
> BTW, the freezes I mentioned are gone. The motherboard may be > a bit buggy, as they appear if I disable the onboard RAID, > but...
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