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SubjectRe: USB interrupt is turned off after periods of inactivity
Hi Nick (and the rest of LKML:)

I am seeing what might be a similar problem (usb interrupts get lost in
relation to X), and in my case I lose my USB keyboard, which is very
frustrating.

Looking at your output, I see some similarities between your system and
mine. I am running Debian also, with kernel.org kernel 2.6.6 in my
case. I am running unstable, and I suspect you are, too: this problem
did not appear until I updated from unstable yesterday, pulling down the
latest Gnome 2. Now, at the moment I log out of my Gnome session, and
gdm restarts X, I lose my USB keyboard, and a similar message appears in
the logs:

Jun 1 17:18:33 aluminum kernel: irq 10: nobody cared!
Jun 1 17:18:33 aluminum kernel: Call Trace:
Jun 1 17:18:33 aluminum kernel: [__report_bad_irq+43/144]
__report_bad_irq+0x2b/0x90
Jun 1 17:18:33 aluminum kernel: [note_interrupt+100/160]
note_interrupt+0x64/0xa0
Jun 1 17:18:33 aluminum kernel: [do_IRQ+303/320] do_IRQ+0x12f/0x140
Jun 1 17:18:33 aluminum kernel: [process_timeout+0/16]
process_timeout+0x0/0x10
Jun 1 17:18:33 aluminum kernel: [common_interrupt+24/32]
common_interrupt+0x18/0x20
Jun 1 17:18:33 aluminum kernel: [process_timeout+0/16]
process_timeout+0x0/0x10
Jun 1 17:18:33 aluminum kernel: [preempt_schedule+14/80]
preempt_schedule+0xe/0x50
Jun 1 17:18:33 aluminum kernel: [run_timer_softirq+217/432]
run_timer_softirq+0xd9/0x1b0
Jun 1 17:18:33 aluminum kernel: [__do_softirq+133/144]
__do_softirq+0x85/0x90
Jun 1 17:18:33 aluminum kernel: [do_softirq+44/48] do_softirq+0x2c/0x30
Jun 1 17:18:33 aluminum kernel: [do_IRQ+265/320] do_IRQ+0x109/0x140
Jun 1 17:18:33 aluminum kernel: [common_interrupt+24/32]
common_interrupt+0x18/0x20
Jun 1 17:18:33 aluminum kernel:
Jun 1 17:18:33 aluminum kernel: handlers:
Jun 1 17:18:33 aluminum kernel: [__crc_sleep_on+2315217/6815505]
(usb_hcd_irq+0x0/0x70 [usbcore])
Jun 1 17:18:33 aluminum kernel: [__crc_sleep_on+2315217/6815505]
(usb_hcd_irq+0x0/0x70 [usbcore])
Jun 1 17:18:33 aluminum kernel: Disabling IRQ #10

I'm running 2.6.6 on an Athlon XP 2800+, VIA K6 chipset. Silicon Image
controller, SATA drives. Riva 128 video.

More info on the system in question (from /proc, lspci, etc) at
http://www.uvm.edu/~jtl/lkml/usbprob/

In my case, I'm not using the Nvidia driver, or any other modules which
would taint the kernel.

Hope someone can help....
Jim

Nick Piggin wrote:

> After periods of inactivity (maybe 20 minutes?), I come
> back to find the mouse pointer frozen due to the USB
> interrupt turned off.
>
> The USB mouse is the only USB device have connected.
>
> This didn't used to happen, but I couldn't say when it
> started. Maybe a few months ago? (I don't run into it
> often).
>
> I don't think it happens in console mode (ie not X),
> but I'm not 100% sure.
>
> dmesg, interrupts, config attached.


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