Re: 3.4.4: disabling irq

Udo van den Heuvel
2012-11-20T14:41:51Z

On 2012-11-19 17:41, Alan Stern wrote:
> Firstly, what does /proc/interrupts say?

# cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 40 0 0 0 IO-APIC-edge timer
1: 631 640 677 734 IO-APIC-edge i8042
4: 1026 976 961 1098 IO-APIC-edge serial
9: 0 0 0 0 IO-APIC-fasteoi acpi
16: 409 403 406 414 IO-APIC-fasteoi
snd_hda_intel
17: 1 1 0 2 IO-APIC-fasteoi
ehci_hcd:usb4, ehci_hcd:usb5
18: 62356 62649 64102 67369 IO-APIC-fasteoi
ohci_hcd:usb1, ohci_hcd:usb2, ohci_hcd:usb3
20: 5774 5762 5902 6405 IO-APIC-fasteoi serial
40: 0 0 0 0 PCI-MSI-edge AMD-Vi
43: 19483 19239 19938 20909 PCI-MSI-edge ahci
44: 51837 52223 53122 55971 PCI-MSI-edge eth0
45: 0 0 0 0 PCI-MSI-edge
xhci_hcd
46: 0 0 0 0 PCI-MSI-edge
xhci_hcd
47: 0 0 0 0 PCI-MSI-edge
xhci_hcd
48: 0 0 0 0 PCI-MSI-edge
xhci_hcd
49: 0 0 0 0 PCI-MSI-edge
xhci_hcd
50: 0 0 0 0 PCI-MSI-edge
xhci_hcd
51: 0 0 0 0 PCI-MSI-edge
xhci_hcd
52: 0 0 0 0 PCI-MSI-edge
xhci_hcd
53: 0 0 0 0 PCI-MSI-edge
xhci_hcd
54: 0 0 0 0 PCI-MSI-edge
xhci_hcd
55: 0 0 0 0 PCI-MSI-edge
xhci_hcd
56: 26 24 42 31 PCI-MSI-edge
snd_hda_intel
57: 28748 28431 29792 32594 PCI-MSI-edge radeon
NMI: 0 0 0 0 Non-maskable interrupts
LOC: 271724 235396 273222 256476 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 0 0 0 0 Performance
monitoring interrupts
IWI: 0 0 0 0 IRQ work interrupts
RTR: 0 0 0 0 APIC ICR read retries
RES: 534762 574540 368898 508436 Rescheduling interrupts
CAL: 30439 42897 30212 31668 Function call interrupts
TLB: 0 0 0 0 TLB shootdowns
THR: 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 Machine check exceptions
MCP: 4 4 4 4 Machine check polls
ERR: 8
MIS: 0

> Secondly, try building a kernel with the patch below and
> CONFIG_USB_DEBUG enabled. Let's see what the dmesg log says when the
> problem occurs.

I just booted into 3.6.7 with the patch:

# dmesg|sort|uniq
ohci_hcd 0000:00:12.0: IRQ: 24 8000005a
ohci_hcd 0000:00:14.5: IRQ: 24 8000005a
#

So what does this mean?
I did not get the `disabling irq` yet.

Udo