* suspend-to-ram on athlons
@ 2001-12-07 21:01 Pavel Machek
0 siblings, 0 replies; only message in thread
From: Pavel Machek @ 2001-12-07 21:01 UTC (permalink / raw)
To: ACPI mailing list, kernel list
Hi!
suspend-to-ram was not working on athlons... Now I found the reason...
We wrote some data to memory, and then told hw to powerdown everything
but memory.
But somehow data were not in memory.
So I added mdelay(1000) and printk().
Data were still not in memory.
So I added wbinvd().
Yep, that helped. That means that athlons happily write-back-cache
data for 1 second.... Ouch.
Okay, I just did not expect *that* kind of trick being played at me.
Pavel
--
"I do not steal MS software. It is not worth it."
-- Pavel Kankovsky
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2001-12-07 21:01 suspend-to-ram on athlons Pavel Machek
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