Messages in this thread | | | From | David Brownell <> | Subject | Re: lockdep and threaded IRQs (was: ...) | Date | Tue, 17 Mar 2009 18:04:39 -0700 |
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On Tuesday 03 March 2009, Ingo Molnar wrote: > i think you severely over-estimate the importance and ratio of > drivers that enable irqs within irq handlers. (Nor does anyone > want to break them really - we want to have a sane default and > we want to flag the broken cases as broken.)
For the record, I've been running for some time now with a patch that issues a warning for each IRQ that lockdep forces to use IRQF_DISABLED.
On my x86 systems, pretty much every driver triggers that warning. Which makes me think maybe that shoe is being placed on the wrong foot: use of IRQF_DISABLED is the *EXCEPTION* not the rule. At least on one major Linux platform...
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