Messages in this thread | | | Date | Thu, 30 Jul 1998 08:19:57 +0200 (CEST) | From | MOLNAR Ingo <> | Subject | Re: [patch] IDE problems on SMP, fixed? (fwd) |
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On Wed, 29 Jul 1998, Linus Torvalds wrote:
> [ Btw, I added code to the big kernel lock that checks that the lock is > always aquired with interrupts enabled (locally or globally). I've run a > kernel that would panic if interrupts were ever disabled upon trying to > access the global kernel lock, and it's been up so far, under both heavy > load and me trying to find some other way to crash it. [...]
the case i occasionally saw was i think the first lock_kernel() done in non-boot CPUs. (this was fixed) But i think the original reason was because lock_kernel() _itself_ used to disable interrupts (just like a spin_lock_irq()). But now it's lean and mean.
-- mingo
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