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Date: Sun, 08 Jul 2012 09:53:12 +0200
From: Udo van den Heuvel <udovdh@xs4all.nl>
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To: linux-kernel@vger.kernel.org
Subject: 3.4.4: disabling irq
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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