Date: Thu, 3 May 2007 21:42:39 +1000 From: Peter Jeremy <peterjeremy@optushome.com.au> To: Ariff Abdullah <ariff@freebsd.org>, freebsd-amd64@freebsd.org Subject: Turion 64x2 still hanging after C1E patch Message-ID: <20070503114239.GA4823@turion.vk2pj.dyndns.org> In-Reply-To: <20070426101525.02bd830e.ariff@FreeBSD.org> References: <200704251958.l3PJwgfZ044842@repoman.freebsd.org> <462FEB77.3000103@FreeBSD.org> <20070426101525.02bd830e.ariff@FreeBSD.org>
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--k+w/mQv8wyuph6w0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2007-Apr-26 10:15:25 +0800, Ariff Abdullah <ariff@freebsd.org> wrote: >On Wed, 25 Apr 2007 16:59:51 -0700 >Maxim Sobolev <sobomax@FreeBSD.org> wrote: >> Ariff Abdullah wrote: >> > ariff 2007-04-25 19:58:42 UTC >> > Disable C1 Enhanced mode on AMD K8 Family Revision F and above >> > to keep local APIC timer alive. =2E.. >> Is it expected to fix some Turion laptops out there, that were=20 >> previously unable to run in the SMP mode due to LAPIC timer on one >> core being down on boot up? > >Certainly yes. My HP/Compaq V6107 still goes into a coma even with this patch. If I boot to single-user mode, it seems to happen immediately after the CD-ROM probe messages (which would be when the system becomes idle). Otherwise, it goes comatose whilst trying to load the entropy. I've re-applied idlecpu_apic_5.diff and it seems to work with hw.apic.idle_cpu=3D"1" (but see below). I've hacked local_apic.c to save the value read from MSR_C001_0055 and that shows that C1eOnCmpHalt is set. Worse,I've noticed that the RTC interrupt occasionally stops. I have worked out that I can restart it by writing to sysctl machdep.adjkerntz (which was the easiest way to issue rtcin(RTC_INTR) from userland). I presume that occasionally the RTC interrupt is lost and so never reset (as per the comment above rtcintr()). I haven't yet tried using the i8254 as a wakeup source. Any ideas on where to look next? --=20 Peter Jeremy --k+w/mQv8wyuph6w0 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFGOcqv/opHv/APuIcRArx+AJ9rLDnzKS5jLsFqRdEarEXtQi214ACfRM0N ZrucYf6du8EuI35IjduzqCA= =vR3w -----END PGP SIGNATURE----- --k+w/mQv8wyuph6w0--
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