From: Pavel Machek <pavel@suse.cz>
To: ACPI mailing list <acpi-devel@lists.sourceforge.net>,
kernel list <linux-kernel@vger.kernel.org>
Subject: suspend-to-ram on athlons
Date: Fri, 7 Dec 2001 22:01:30 +0100 [thread overview]
Message-ID: <20011207220130.A9253@elf.ucw.cz> (raw)
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
reply other threads:[~2001-12-08 20:57 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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