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Re: [v4.1.10-rt10][PATCH 0/2] PCI: dra7xx/dwc: fix "WARNING: CPU: 1 PID: 82 at kernel/irq/handle.c:150 handle_irq_event_percpu"

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On 11/03/2015 03:46 PM, Sebastian Andrzej Siewior wrote:
> On 11/02/2015 08:30 PM, Grygorii Strashko wrote:
>> On -RT above code will generate warnings, because driver_xx_hw_irq_handler()
>> will be forced threaded (by default) and, as result, generic_handle_irq()
>> will be called with IRQs enabled. To W/A this issue generic_handle_irq() can
>> be surrounded by raw_spin_lock_irqsave/irqrestore(wa_lock).
> 
> and what happens without -RT if you boot threadedirqs?
> 

Yep. It will still warn :( Can be reworked to cover this case also, i think
(if overall concept will be accepted) 


Thanks.
-- 
regards,
-grygorii
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[v4.1.10-rt10][PATCH 0/2] PCI: dra7xx/dwc: fix "WARNING: CPU: 1 PID: 82 at kernel/irq/handle.c:150 handle_irq_event_percpu" Grygorii Strashko <grygorii.strashko@ti.com> - 2015-11-02 20:40 +0100
  [v4.1.10-rt10][PATCH 1/2] genirq: introduce new generic_handle_irq_rt_wa() api Grygorii Strashko <grygorii.strashko@ti.com> - 2015-11-02 20:40 +0100
  [v4.1.10-rt10] [PATCH 2/2] PCI: dra7xx: fix "WARNING: CPU: 1 PID: 82 at kernel/irq/handle.c:150 handle_irq_event_percpu" Grygorii Strashko <grygorii.strashko@ti.com> - 2015-11-02 20:40 +0100
  Re: [v4.1.10-rt10][PATCH 0/2] PCI: dra7xx/dwc: fix "WARNING: CPU: 1  PID: 82 at kernel/irq/handle.c:150 handle_irq_event_percpu" Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2015-11-03 14:50 +0100
    Re: [v4.1.10-rt10][PATCH 0/2] PCI: dra7xx/dwc: fix "WARNING: CPU: 1  PID: 82 at kernel/irq/handle.c:150 handle_irq_event_percpu" Grygorii Strashko <grygorii.strashko@ti.com> - 2015-11-03 20:20 +0100
      Re: [v4.1.10-rt10][PATCH 0/2] PCI: dra7xx/dwc: fix "WARNING: CPU:  1 PID: 82 at kernel/irq/handle.c:150 handle_irq_event_percpu" Thomas Gleixner <tglx@linutronix.de> - 2015-11-03 21:10 +0100

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