Messages in this thread | | | Subject | 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" | From | Grygorii Strashko <> | Date | Tue, 3 Nov 2015 21:11:10 +0200 |
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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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