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::interrupts output in mdb

blogs.sun.com » 2008 » July » 9th » ::interrupts output in mdb

Tagged: personal

Years ago, 8259 was extensively adopted by single CPU PC and the IRQ and vector number was clear to OS. Now, we have APICs in Intel multiple processor systems. It is quite confusing how the IRQ numbers are assigned to OS. Here is the output of "::interrupts" output in mdb. ::interrupts IRQ Vect IPL Bus Trg Type CPU Share APIC/INT# ISR(s) 4 0xb0 12 ISA Edg Fixed 3 1 0x0/0x4 asyintr 9 0x81 … Continue Reading »

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