Messages in this thread |  | | Subject | Re: SMP irq sharing problem in 2.2.17 | Date | Fri, 13 Oct 2000 12:55:19 +0100 (BST) | From | Alan Cox <> |
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> I had a similar problem with the USB driver assigned to IRQ19 but not receiving any interrupts. > > Perhaps someone more knowledgable can explain why linux fails under MPS1.4.
Linux is fine with MPS1.4. There are two possible causes I see
1. Some clown built a USB controller with only 4 bits of the IRQ line writable/checkable. We've seen sound chips with that 'feature'
2. The MPS 1.4 tables in the BIOS are wrong. Remarkably common problem
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