On Mon, 27 Nov 2000, Mr. Big wrote:
> We've disabled the apic, because there was a hint, that maybe there's some
> bug with the hardware or software on it. I belive that it's could be
> better to use the apic.
>
> The output of lspci -v:
[...]
> 00:0e.0 Ethernet controller: Intel Corporation 82557 [Ethernet Pro 100] (rev 08)
> Subsystem: Intel Corporation 82559 Fast Ethernet LAN on Motherboard
> Flags: bus master, medium devsel, latency 64, IRQ 5
Hmm, this is the device you reported you have a problem initially, isn't
it? If it is, then...
> 00:12.2 USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 01) (prog-if 00 [UHCI])
> Flags: bus master, medium devsel, latency 64, IRQ 5
... it shares its IRQ with an USB host adapter as I suspected. And you
don't have an USB driver installed. Does the following patch help? (Hmm,
since you tested 2.4.0-test* as well -- it might not as it's just a
backport... Then again -- you might hit a different problem with
2.4.0-test*.)
It's not impossible for an I/O APIC to lose an EOI message if there are
severe errors during the transmission -- since you already tried
2.4.0-test*: have you seen any APIC errors in the syslog?
Maciej
-- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available +diff -up --recursive --new-file linux-2.2.17.macro/drivers/pci/quirks.c linux-2.2.17/drivers/pci/quirks.c --- linux-2.2.17.macro/drivers/pci/quirks.c Wed Oct 27 00:53:40 1999 +++ linux-2.2.17/drivers/pci/quirks.c Fri Oct 20 10:33:01 2000 @@ -144,6 +144,26 @@ __initfunc(static void quirk_isa_dma_han } } +/* + * PIIX3 USB: We have to disable USB interrupts that are + * hardwired to PIRQD# and may be shared with an + * external device. + * + * Legacy Support Register (LEGSUP): + * bit13: USB PIRQ Enable (USBPIRQDEN), + * bit4: Trap/SMI On IRQ Enable (USBSMIEN). + * + * We mask out all r/wc bits, too. + */ +__initfunc(static void quirk_piix3_usb(struct pci_dev *dev, int arg)) +{ + u16 legsup; + + pci_read_config_word(dev, 0xc0, &legsup); + legsup &= 0x50ef; + pci_write_config_word(dev, 0xc0, legsup); +} + typedef void (*quirk_handler)(struct pci_dev *, int); @@ -202,6 +222,8 @@ static struct quirk_info quirk_list[] __ */ { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs, 0x00 }, { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596_0, quirk_isa_dma_hangs, 0x00 }, + { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_2, quirk_piix3_usb, 0x00 }, + { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_2, quirk_piix3_usb, 0x00 }, }; __initfunc(void pci_quirks_init(void))
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This archive was generated by hypermail 2b29 : Thu Nov 30 2000 - 21:00:19 EST