Messages in this thread | | | Subject | Re: [APM] CPU idle calls causing problem with ASUS P4PE MoBo | From | Arjan van de Ven <> | Date | Thu, 07 Aug 2003 18:57:45 +0200 |
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On Thu, 2003-08-07 at 18:08, Kathy Frazier wrote: > I am experiencing problems with the CPU idle call feature on an ASUS P4PE > (Intel 82845PE MCH and Intel 82801DB ICH4 chipsets). I am using kernel > 2.4.20-8 (Red Hat 9.0).
that's an old kernel.. several updates have followed since... several machines have been added to the apm idle blacklist in later kernels > > We were having trouble with our system "hanging" > after running for a while. By this I mean, that no IRQs are getting > through, but software components are still running. We have a proprietary > PCI DMA bus master device that works fine in PIII system, but the plans are > to ship our product using this ASUS MoBo. In the process of trying to debug > this problem, we have updated BIOS, tweaked BIOS parameters, added debug to > the kernel to determine the status of our IRQ, etc. When I changed the > CONFIG_APM_CPU_IDLE to no, our 3 hour test runs to completion. Previously > this test would cause the system to hang within minutes. I have tried > various combinations of APM tweaking with the following results:
if you can mail the top part of the dmidecode output (the part that has the bios idents) the machine can trivially be added to the apm idle blacklist.
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