--- Matthew Dillon <[EMAIL PROTECTED]> wrote:
> A flood of stray irq 7 messages is > typically indicative of a BIOS > SMP configuration problem. It usually > means that the PIC is sending > EXT interrupt acknowledgement requests to > several cpus at once (or > to one dual-core cpu), and the BIOS hasn't > setup the hardware to > properly direct the interrupts to just one > cpu pin. > > What happens is that one cpu acks the > interrupt and clears the pending > bit, then the other cpu tries to ack the no > longer pending interrupt > and gets the stray interrupt vector. The > stray interrupt vector is > typically an undocumented hardware vector > number, usually 7 or 15. > Hence stray irq 7's. > > If you are running dual-core cpu's you can > try adding this option to > work around the BIOS misconfiguration: > > options CPU_AMD64X2_INTR_SPAM > > But it may not work on opterons. The > problem is most commonly on > systems with DUAL-CORE cpu's and BIOSes > that don't quite configure > them properly. This is a single core 100-series opteron. I don't have any dual-cores to test with at the moment. Its basically a GENERIC kernel (1.5.3-PREVIEW) with smp disabled. DT __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
