Date: Thu, 8 Apr 2004 14:32:09 -0400 (EDT) From: "David E. Cross" <crossd@cs.rpi.edu> To: freebsd-acpi@freebsd.org Subject: ACPI,SMP(?), and 5.2.1-RELEASE Message-ID: <20040408141941.W45013@monica.cs.rpi.edu>
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I recently upgraded my odl ASUS P2B-DS runnig BIOS version 1012 to 5.2.1-RELEASE (from 4.9.1) and noticed that the system is spending 50% of its time in interrupt while idle running any kernel (including GENERIC). When the system is booted without ACPI everything runs correctly and no interrupt load is observed. Additionally on shutting down the kernel messages after disabling ACPI are completely mangled. Like 90% of the time on a "halt" the "System is halted\nSystem is safe to power down or press any key to reboot" is completely missing or mangled to the point of non recognition. When it is visible I sometimes see a message like "Stray irq 2", and recently I got "stray irq 20\n rq 20" (just to give an example of how things are mangled after ACPI shutdown). the "2" bit in the IRQ is consistent whenever I am able to observe it, however I don't have anything in dmesg on irq 2, 12, 20, 21, 22, or 23 (where the IRQs max out according to the IOAPIC line) and I cannot think of anything else that has "2" in the irq number. So why am I not getting stray IRQ errors earlier? Is there any way to tell on a running system which IRQ line is getting spammed and "why"? Any help on this would be greatly appreciated as I would like to run ACPI on this system so that I can do power offs for things like UPS-Battery failure, etc. -- David E. Cross
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