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由 Stefan Assmann 提交于
The following was observed by Steve Rostedt on 3.0.0-rc5 Backtrace: irq 16: nobody cared (try booting with the "irqpoll" option) Pid: 65, comm: irq/16-uhci_hcd Not tainted 3.0.0-rc5-test+ #94 Call Trace: [<ffffffff810aa643>] __report_bad_irq+0x37/0xc1 [<ffffffff810aaa2d>] note_interrupt+0x14e/0x1c9 [<ffffffff810a9a05>] ? irq_thread_fn+0x3c/0x3c [<ffffffff810a990e>] irq_thread+0xf6/0x1b1 [<ffffffff810a9818>] ? irq_finalize_oneshot+0xb3/0xb3 [<ffffffff8106b4d6>] kthread+0x9f/0xa7 [<ffffffff814f1f04>] kernel_thread_helper+0x4/0x10 [<ffffffff8103ca09>] ? finish_task_switch+0x7b/0xc0 [<ffffffff814eac78>] ? retint_restore_args+0x13/0x13 [<ffffffff8106b437>] ? __init_kthread_worker+0x5a/0x5a [<ffffffff814f1f00>] ? gs_change+0x13/0x13 handlers: [<ffffffff810a912d>] irq_default_primary_handler threaded [<ffffffff8135eaa6>] usb_hcd_irq [<ffffffff810a912d>] irq_default_primary_handler threaded [<ffffffff8135eaa6>] usb_hcd_irq Disabling IRQ #16 The problem being that a device triggers boot interrupts (due to threaded interrupt handling and masking of the IO-APIC), which are forwarded to the PIRQ line of the device. These interrupts are not handled on the PIRQ line because the interrupt handler is not present there. This should have already been fixed by CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS. However some parts of the quirk got lost in the ACPI merge. This is a resent of the patch proposed in 2009. See http://lkml.org/lkml/2009/9/7/192Signed-off-by: NStefan Assmann <sassmann@kpanic.de> Tested-by: NSteven Rostedt <rostedt@goodmis.org> Signed-off-by: NLen Brown <len.brown@intel.com>
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