Further result-- the hardware seems to work just fine with 1/06-- it has been running all night with no problems. So, my burning question is... what is different between 1/06 and 6/06 that causes this lockup problem? Were there changes to the default behavior of ACPI support? Maybe a change in drivers? These boards use the AMD 8111 core logic, I believe.

Any suggestions would be greatly appreciated.
Thanks,
Eric

Eric Sproul wrote:
Hi,
I've got some new hardware in, and I'd really like to be running 6/06 on it, but I'm having terrible problems with lockups. They seem to happen anywhere from 30 minutes to 3 hours after bootup, regardless of workload, even sitting idle. The same behavior was observed running 6/06 as well as nv49. When the lockup occurs, nothing works, not even the keyboard, requiring a hard power-cycle.

I suspect ACPI, but the usual tricks to disable it and various BIOS fiddling have not resolved the issue. I've used acpi_user_options 0x2 and 0x8, and I'm trying 0x4 currently, but so far none have had any effect.

I've also tried disabling legacy USB support, and toggling "ACPI-aware OS" on and off. Again, no effect.

I'm looking for ideas, further recommendations, anything to keep me from taking a hammer to these things... :)
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