Messages in this thread Patch in this message | | | Subject | RE: 2.4.22-ac1 -- loading of usb-uhci gives hard lockup | Date | Mon, 1 Sep 2003 19:07:32 -0700 | From | "Nakajima, Jun" <> |
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Can you try the following patch that I sent out the other day? I saw this message when I was debugging, and it's gone with the patch. I assume you have ACPI enabled.
Thanks, Jun
> -----Original Message----- > From: Pawel Dziekonski [mailto:pawel.dziekonski@pwr.wroc.pl] > Sent: Monday, September 01, 2003 8:36 AM > To: linux-kernel@vger.kernel.org > Subject: Re: 2.4.22-ac1 -- loading of usb-uhci gives hard lockup > > On nie, 31 sie 2003 at 04:11:25 +0200, Pawel Dziekonski wrote: > > Hi, > > > > clean 2.4.22-ac1, load of usb-uhci.o locks my machine hard :-( > > it was working OK with 2.4.22-rc2-ac2! machine is on KT133 chipset. > > I cant use plain 2.4.22 because of trouble of compiling it with XFS > > support (unofficial patch has no .config entries). > > update: i have compiled usbcore and usb-uhci into the kernel > and now it hangs with: > spurious 8259A interrupt: IRQ7 > > anybody? > -- > Pawel Dziekonski <pawel.dziekonski|@|pwr.wroc.pl>, KDM WCSS avatar:0:0: > Wroclaw Networking & Supercomputing Center, HPC Department > -> See message headers for privacy policy info. > - --- diff -ru /build/orig/linux-2.4.23-pre1/drivers/acpi/pci_link.c linux-2.4.23-pre1/drivers/acpi/pci_link.c --- /build/orig/linux-2.4.23-pre1/drivers/acpi/pci_link.c 2003-08-25 04:44:41.000000000 -0700 +++ linux-2.4.23-pre1/drivers/acpi/pci_link.c 2003-08-29 20:21:13.000000000 -0700 @@ -216,7 +216,6 @@ return AE_CTRL_TERMINATE; } - static int acpi_pci_link_get_current ( struct acpi_pci_link *link) @@ -275,6 +274,26 @@ return_VALUE(result); } +static int +acpi_pci_link_try_get_current ( + struct acpi_pci_link *link, + int irq) +{ + int result; + + result = acpi_pci_link_get_current(link); + if (result && link->irq.active) { + return_VALUE(result); + } + + if (!link->irq.active) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "No active IRQ resource found\n")); + printk(KERN_WARNING "_CRS returns NULL! Using IRQ %d for device (%s [%s]).\n", irq, acpi_device_name(link->device), acpi_device_bid(link->device)); + link->irq.active = irq; + } + + return 0; +} static int acpi_pci_link_set ( @@ -359,7 +378,7 @@ } /* Make sure the active IRQ is the one we requested. */ - result = acpi_pci_link_get_current(link); + result = acpi_pci_link_try_get_current(link, irq); if (result) { return_VALUE(result); } @@ -573,10 +592,6 @@ else printk(" %d", link->irq.possible[i]); } - if (!link->irq.active) - printk(", disabled"); - else if (!found) - printk(", enabled at IRQ %d", link->irq.active); printk(")\n"); /* TBD: Acquire/release lock */
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