Messages in this thread | | | Date | Thu, 25 Mar 2010 19:27:02 +0100 | From | Andi Kleen <> | Subject | Re: [PATCH] Prevent nested interrupts when the IRQ stack is near overflowing v2 |
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> I think the patch as posted solves a real problem, but also perpetuates a bad > situation. > > At minimum we should print a (one-time) warning that some badness occured. > That would push us either in the direction of improving drivers, or towards > improving the generic code.
What should a driver do to prevent that? I don't see what it could do short of castrating itself (like refusing to use multiple ports) As Linus says the driver doesn't know if setting IRQF_DISABLED is safe.
-Andi -- ak@linux.intel.com -- Speaking for myself only.
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