SMP ACPI S3 support in 2.4 series?

I'm buying a number of SMP servers. These machines will go idle for days at a time, and we'd like to send them into a suspend-to-RAM (ACPI state S3) while they are unused.

I want to know if this is even possible with the Linux 2.4 series kernels, and if so, which hardware and kernel combinations support it. I'd also like to know if anyone really has this working right now.

As dual Athlon systems appear to be the best performance/$ for my application, I'm especially interested in getting those to sleep, but I'll take any pointers I can get.

-Iain McClatchie [email protected]

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