Red Hat Bugzilla – Bug 506821
kernel does not properly initialize interrupts for pci bus
Last modified: 2010-06-28 09:08:28 EDT
Created attachment 348541 [details]
Description of problem:
Kernel boots only with "acpi=off" or "pci=noacpi". There are following lines in dmesg after kernel booted:
pci 0000:02:04.0: can't find IRQ for PCI INT A; please try using pci=biosirq
pci 0000:02:04.0: setting latency timer to 64
pci 0000:02:04.1: can't find IRQ for PCI INT B; please try using pci=biosirq
pci 0000:02:04.1: setting latency timer to 64
yenta_cardbus 0000:02:04.0: CardBus bridge found [14c0:0012]
yenta_cardbus 0000:02:04.0: O2: res at 0x94/0xD4: c8/00
yenta_cardbus 0000:02:04.0: O2: enabling read prefetch/write burst
yenta_cardbus 0000:02:04.0: no PCI IRQ, CardBus support disabled for this socket.
yenta_cardbus 0000:02:04.0: check your BIOS CardBus, BIOS IRQ or ACPI settings.
irq 10: nobody cared (try booting with the "irqpoll" option)
Version-Release number of selected component (if applicable): kernel 188.8.131.52-167.fc11.i586
Boot Fedora 11 i386 DVD on Compal CL10 or its clone notebook.
Steps to Reproduce:
In consequence - CardBus WiFi adapter is not functional, usb mouse pointer has harsh movements, "irqpoll" and "pci=biosirq" options do not help.
Created attachment 348542 [details]
lspci -vvv output
Created attachment 348543 [details]
Kernel hangs after following messages when boot without "pci=noacpi":
pci 0000:02:04.1: PREFETCH window: 0x44000000-0x47ffffff
pci 0000:02:04.1: MEM window: 0x50000000-0x53ffffff
pci 0000:00:1e.0: PCI bridge, secondary bus 0000:02
pci 0000:00:1e.0: IO window: 0x3000-0x3fff
pci 0000:00:1e.0: MEM window: 0xe0000000-0xe00fffff
pci 0000:00:1e.0: PREFETCH window: 0x00000040000000-0x00000047ffffff
"initcall_debug" shows last call is "pcibios_assign_resources"
I found out the same bug on Kernel Bugzilla: http://bugzilla.kernel.org/show_bug.cgi?id=13002
Patch from Comment #31 with a minor change helps (see #34).
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