Re: [PATCH] i386: Fix softirq accounting with 4K stacks

[Chuck Ebbert]

In-Reply-To: <20060625184244.GA11921@xxxxxxxxxxxxxx>

On Sun, 25 Jun 2006 20:42:44 +0200, Bjorn Steinbrink wrote:

> Btw, which path do apic irqs go? I stumbled across the nmi stuff, but
> didn't see anything special for the apic irqs.

arch/i386/kernel/entry.S has the macro BUILD_INTERRUPT(name, nr).

The code that uses this macro is in arch/i386/mach-*/entry_arch.h.

The macro prepends "smp_" to the name passed to the macro and the
generated asm code calls that function after saving registers, etc.

arch/i386/kernel/apic.c::apic_intr_init() calls set_intr_gate() to
point some of the interrupt gates at the correct functions.

-- 
Chuck
 "You can't read a newspaper if you can't read."  --George W. Bush
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