[Bugme-new] [Bug 41202] New: irq 16: nobody cared

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=41202

           Summary: irq 16: nobody cared
           Product: Platform Specific/Hardware
           Version: 2.5
    Kernel Version: 3.0.1
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
        AssignedTo: platform_other at kernel-bugs.osdl.org
        ReportedBy: tim at klingt.org
        Regression: No


Created an attachment (id=68902)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=68902)
kernel configuration

i've been using 3.0.1 for some time, but today after booting my usb keyboard
transmitted only about one key stroke per second. looking at the dmesg output,
it showed me:

[   14.726028] irq 16: nobody cared (try booting with the "irqpoll" option)
[   14.726032] Pid: 46, comm: irq/16-uhci_hcd Tainted: P            3.0.1 #12
[   14.726035] Call Trace:
[   14.726042]  [<ffffffff810cb936>] __report_bad_irq+0x36/0xd0
[   14.726045]  [<ffffffff810cbd56>] note_interrupt+0x136/0x1f0
[   14.726049]  [<ffffffff81062c07>] ? local_bh_enable+0x57/0xc0
[   14.726052]  [<ffffffff810caa90>] ? irq_thread_fn+0x50/0x50
[   14.726054]  [<ffffffff810caa0f>] irq_thread+0x1af/0x1e0
[   14.726057]  [<ffffffff810ca860>] ? irq_finalize_oneshot+0x110/0x110
[   14.726060]  [<ffffffff8107e83c>] kthread+0x8c/0xa0
[   14.726065]  [<ffffffff815d33a4>] kernel_thread_helper+0x4/0x10
[   14.726068]  [<ffffffff8107e7b0>] ? kthread_worker_fn+0x190/0x190
[   14.726071]  [<ffffffff815d33a0>] ? gs_change+0x13/0x13
[   14.726072] handlers:
[   14.726074] [<ffffffff810ca090>] irq_default_primary_handler threaded
[<ffffffff8142fd80>] usb_hcd_irq
[   14.726080] [<ffffffff810ca090>] irq_default_primary_handler threaded
[<ffffffffa001dce0>] ahci_interrupt
[   14.726093] [<ffffffff810ca090>] irq_default_primary_handler threaded
[<ffffffffa1baea40>] snd_hdsp_interrupt
[   14.726098] Disabling IRQ #16

unfortunately, on this interrupt there are 3 devices of different subsystems
(audio, usb, ahci), and
i cannot reproduce this problem. after rebooting the machine works fine again.
nevertheless it may show that there is a problem somewhere ...

kernel configuration attached,

hth, tim

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