Date: Tue, 22 Jul 2003 12:43:54 +0200 From: Andrea Campi <andrea@webcom.it> To: Peter Wemm <peter@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/i386/acpica acpi_wakeup.c Message-ID: <20030722104354.GA668@webcom.it> In-Reply-To: <200307212059.h6LKxS9Z064227@repoman.freebsd.org> References: <200307212059.h6LKxS9Z064227@repoman.freebsd.org>
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On Mon, Jul 21, 2003 at 01:59:28PM -0700, Peter Wemm wrote:
> Modified files:
> sys/i386/acpica acpi_wakeup.c
> Log:
> Commit Ian Dowse's workaround for acpi resume resetting after the
> LAZY_SWITCH changes. He pointed out the acpi code sets up an identity
> mapping in the current vmspace and that got messed up by the %cr3 being
> out of sync with the current page directory. As a workaround, restore
> %cr3 across the sleep/resume. A more complete fix would be to undo the
> lazy state and clear the pm_active bit from the borrowed pmap, but this
> works and people are currently hurting. I'll clean this up.
> This is mostly Ian's patch, plus a PAE tweak from me.
Thanks! This indeed fixes the issue I told you about.
Bye,
Andrea
--
To boldly go where I surely don't belong.
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