linux-kernel - Re: BCM4312 Fails when xdm is started

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Date:	Sun, 23 Nov 2008 09:42:28 -0600
From:	Larry Finger <Larry.Finger@...inger.net>
To:	Michael Buesch <mb@...sch.de>
CC:	Yuval Hager <yuval@...amzon.net>, bcm43xx-dev@...ts.berlios.de,
	LKML <linux-kernel@...r.kernel.org>,
	wireless <linux-wireless@...r.kernel.org>,
	Peter Stuge <peter@...ge.se>
Subject: Re: BCM4312 Fails when xdm is started

Michael Buesch wrote:
> On Sunday 23 November 2008 12:49:55 Yuval Hager wrote:
>> [  182.891400] ****** b43: B43_MMIO_MACCTL 0x840A0503
>> [  182.891409] ****** b43: SSB_TMSLOW 0x20150000
>> [  258.299027] irq 10: nobody cared (try booting with the "irqpoll" option)
> 
> 
> Does the kernel disable the PCI device, if it ignores the IRQ?

According to /proc/interrupts that Yuval posted earlier, IRQ 10 is not used.

# cat /proc/interrupts

           CPU0
  0:     271998   IO-APIC-edge      timer
  1:          8   IO-APIC-edge      i8042
  8:          2   IO-APIC-edge      rtc
  9:       2796   IO-APIC-fasteoi   acpi
 12:        132   IO-APIC-edge      i8042
 14:          0   IO-APIC-edge      ide0
 15:          0   IO-APIC-edge      ide1
 16:      29161   IO-APIC-fasteoi   eth0
 17:        503   IO-APIC-fasteoi   HDA Intel
 20:          0   IO-APIC-fasteoi   uhci_hcd:usb2
 21:      11085   IO-APIC-fasteoi   sata_via, ehci_hcd:usb1, uhci_hcd:usb3
 23:          0   IO-APIC-fasteoi   uhci_hcd:usb4
 24:      28003   IO-APIC-fasteoi   b43
NMI:          0   Non-maskable interrupts
LOC:       2098   Local timer interrupts
RES:          0   Rescheduling interrupts
CAL:          0   function call interrupts
TLB:          0   TLB shootdowns
TRM:          0   Thermal event interrupts
SPU:          0   Spurious interrupts
ERR:          0
MIS:          0

After the failure occurs, b43 has disappeared from the IRQ 24 list:

 24:      34154   IO-APIC-fasteoi


Larry
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