Messages in this thread |  | | | Date | Mon, 03 Dec 2001 20:21:30 -0800 (PST) | | Subject | Re: [PATCH] improve spinlock debugging | | From | "David S. Miller" <> |
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From: Manfred Spraul <manfred@colorfullife.com> Date: Mon, 03 Dec 2001 21:10:27 +0100
Which other runtime checks are possible? Tests for correct _irq usage are not possible, several drivers use disable_irq().
Keep track of how many locks are being held at once, and check if it is zero at switch_to() time. You can also do this to measure things like max number of locks held at once and other statistics.
I added the first bit to sparc64 while hunting down a bug.
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