linux-kernel - Re: 3.4.4: disabling irq

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Date:	Mon, 09 Jul 2012 18:05:50 +0200
From:	Udo van den Heuvel <udovdh@...all.nl>
To:	Clemens Ladisch <clemens@...isch.de>
CC:	linux-usb@...r.kernel.org, Simon Jones <sijones2010@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: 3.4.4: disabling irq

On 2012-07-09 15:54, Clemens Ladisch wrote:
> (forwarded to linux-usb)
> 
> Udo van den Heuvel wrote:
>> Hello,
>>
>> One moment the box is runing OK.
>> One moment the 3.4.4 kernel decides to disable an interrupt.
>> Why?
>>
>> Jul  8 07:43:49 box3 ntpd[5067]: parse: convert_rawdcf: INCOMPLETE DATA - time code only has 1 bits
>> Jul  8 07:44:53 box3 kernel: irq 18: nobody cared (try booting with the "irqpoll" option)
>> Jul  8 07:44:53 box3 kernel: Pid: 1501, comm: irq/18-ohci_hcd Tainted: G        W    3.4.4 #1
>> Jul  8 07:44:53 box3 kernel: Call Trace:
>> Jul  8 07:44:53 box3 kernel: [<ffffffff81095a76>] ? __report_bad_irq+0x36/0xd0
>> Jul  8 07:44:53 box3 kernel: [<ffffffff81095d7f>] ? note_interrupt+0x1cf/0x220
>> Jul  8 07:44:53 box3 kernel: [<ffffffff810945c0>] ? irq_thread_fn+0x40/0x40
>> Jul  8 07:44:53 box3 kernel: [<ffffffff8109443d>] ? irq_thread+0x13d/0x180
>> Jul  8 07:44:53 box3 kernel: [<ffffffff81094300>] ? wake_threads_waitq+0x50/0x50
>> Jul  8 07:44:53 box3 kernel: [<ffffffff81052015>] ? kthread+0x85/0x90
>> Jul  8 07:44:53 box3 kernel: [<ffffffff81405514>] ? kernel_thread_helper+0x4/0x10
>> Jul  8 07:44:53 box3 kernel: [<ffffffff81051f90>] ? kthread_freezable_should_stop+0x50/0x50
>> Jul  8 07:44:53 box3 kernel: [<ffffffff81405510>] ? gs_change+0xb/0xb
>> Jul  8 07:44:53 box3 kernel: handlers:
>> Jul  8 07:44:53 box3 kernel: [<ffffffff810939d0>] irq_default_primary_handler threaded [<ffffffff812c7bb0>] usb_hcd_irq
>> Jul  8 07:44:53 box3 kernel: [<ffffffff810939d0>] irq_default_primary_handler threaded [<ffffffff812c7bb0>] usb_hcd_irq
>> Jul  8 07:44:53 box3 kernel: [<ffffffff810939d0>] irq_default_primary_handler threaded [<ffffffff812c7bb0>] usb_hcd_irq
>> Jul  8 07:44:53 box3 kernel: Disabling IRQ #18
>> Jul  8 07:44:53 box3 kernel: pwc: Iso frame 0 has error -114
>> Jul  8 07:44:53 box3 kernel: pwc: Iso frame 1 has error -18
>> Jul  8 07:44:53 box3 kernel: pwc: Iso frame 2 has error -18
>> Jul  8 07:44:53 box3 kernel: pwc: Iso frame 3 has error -18
>> Jul  8 07:44:53 box3 kernel: pwc: Iso frame 4 has error -18
>> Jul  8 07:44:53 box3 kernel: pwc: Iso frame 5 has error -18
>> (etc; many more of the pwc messages)
>>
>> Kind regards,
>> Udo
> 
> ... and, with apparently the same mainboard:

Over here:

        Manufacturer: Gigabyte Technology Co., Ltd.
        Product Name: GA-MA770-DS3

>> Motherboard is Gigabyte GA-990XA-UD3
>> CPU is AMD Bulldozer 6 Core version

AMD 9550 4 core in my case, i.e.: less new.
pwc driver is the main user for a webcam on USB.

>> I'll attach the 2 dmesg logs, one from 3.2 and other from 3.4,
>> hopefully someone can see what's wrong, there is a suggestion to boot
>> with irqpoll, but really wanted someone's opinion on this.

Any ideas why the IRQ stops working?

Udo

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