hi, i am not sure, whether it is really problem of the usb subsystem or with some other layer, but i am regularly experiencing problems with usb devices. searching on the lkml, i came across a very similar problem and the only common point is that it also mentions the usb_hcd_irq interrupt handler [1]. we both get the message irq XX: nobody cared (see below). and for both of us the problem started with the 3.0 kernel (i've also experienced it with 3.1-rc8). on my machine it happens not very often ... sometimes it takes a few hours to occur. however i am currently running on a kernel which is booted without threadirq without any problems. i once tried to boot with the irqpoll option, but the machine didn't boot at all. both issues occurred on different irqs, the only common interrupt handler is usb_hcd_irq. how can i help to resolve this issue? thanks, tim my system: [ 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 interrupts: 16: 0 1902349 0 52 IO-APIC-fasteoi uhci_hcd:usb3, ahci, snd_hdsp ed's system: Jul 11 07:26:01 grover kernel: [42033.890391] irq 18: nobody cared (try booting with the "irqpoll" option) Jul 11 07:26:01 grover kernel: [42033.897325] Pid: 1434, comm: irq/18-ohci_hcd Not tainted 3.0.0-rc5-crc+ #324 Jul 11 07:26:01 grover kernel: [42033.904585] Call Trace: Jul 11 07:26:01 grover kernel: [42033.904596] [<ffffffff810a9bf9>] __report_bad_irq+0x69/0x110 Jul 11 07:26:01 grover kernel: [42033.904599] [<ffffffff810a9f0c>] note_interrupt+0x26c/0x2b0 Jul 11 07:26:01 grover kernel: [42033.904603] [<ffffffff810a9879>] irq_thread+0x209/0x210 Jul 11 07:26:01 grover kernel: [42033.904605] [<ffffffff810a9960>] ? exit_irq_thread+0x90/0x90 Jul 11 07:26:01 grover kernel: [42033.904608] [<ffffffff810a9670>] ? irq_finalize_oneshot+0x160/0x160 Jul 11 07:26:01 grover kernel: [42033.904613] [<ffffffff81070d56>] kthread+0xb6/0xc0 Jul 11 07:26:01 grover kernel: [42033.904618] [<ffffffff8108945d>] ? trace_hardirqs_on_caller+0x14d/0x190 Jul 11 07:26:01 grover kernel: [42033.904622] [<ffffffff81570c14>] kernel_thread_helper+0x4/0x10 Jul 11 07:26:01 grover kernel: [42033.904625] [<ffffffff81568b84>] ? retint_restore_args+0xe/0xe Jul 11 07:26:01 grover kernel: [42033.904628] [<ffffffff81070ca0>] ? __init_kthread_worker+0x70/0x70 Jul 11 07:26:01 grover kernel: [42033.904631] [<ffffffff81570c10>] ? gs_change+0xb/0xb Jul 11 07:26:01 grover kernel: [42033.904633] handlers: Jul 11 07:26:01 grover kernel: [42033.904635] [<ffffffff810a7e50>] irq_default_primary_handler threaded [<ffffffff813a2150>] radeon_driver_irq_handler_kms Jul 11 07:26:01 grover kernel: [42033.904641] [<ffffffff810a7e50>] irq_default_primary_handler threaded [<ffffffff81464df0>] usb_hcd_irq Jul 11 07:26:01 grover kernel: [42033.904647] [<ffffffff810a7e50>] irq_default_primary_handler threaded [<ffffffff81464df0>] usb_hcd_irq Jul 11 07:26:01 grover kernel: [42033.904650] [<ffffffff810a7e50>] irq_default_primary_handler threaded [<ffffffff81464df0>] usb_hcd_irq Jul 11 07:26:01 grover kernel: [42033.904653] Disabling IRQ #18 interrupts: 18: 10 148 1892 131017 IO-APIC-fasteoi radeon, ohci_hcd:usb5, ohci_hcd:usb6, ohci_hcd:usb7 [1] https://lkml.org/lkml/2011/7/11/119 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
