Date: Sat, 5 May 2007 20:36:56 +1000 From: Peter Jeremy <peterjeremy@optushome.com.au> To: Ariff Abdullah <ariff@FreeBSD.org> Cc: freebsd-amd64@FreeBSD.org Subject: Re: Turion 64x2 still hanging after C1E patch Message-ID: <20070505103656.GE825@turion.vk2pj.dyndns.org> In-Reply-To: <20070503202624.0e0966cd.ariff@FreeBSD.org> References: <200704251958.l3PJwgfZ044842@repoman.freebsd.org> <462FEB77.3000103@FreeBSD.org> <20070426101525.02bd830e.ariff@FreeBSD.org> <20070503114239.GA4823@turion.vk2pj.dyndns.org> <20070503202624.0e0966cd.ariff@FreeBSD.org>
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On 2007-May-03 20:26:24 +0800, Ariff Abdullah <ariff@FreeBSD.org> wrote:
>This probably something else. Try disabling sio, ppc through
>/boot/device.hints. Several HP laptops are known to hang because of
>this.
I removed ppc from the kernel. Disabling sio{0,1} seems to have
fixed the problem. That's a PITA because it means I can't use IrDA.
>> 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.
>>=20
>This is expected, and the recent "fix" is supposed to overwrite and
>disable C1E on each core/cpu.
My comment was intended to indicate that the C1E fix code was being
executed.
>> 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()).
>>=20
>> I haven't yet tried using the i8254 as a wakeup source.
>>=20
>> Any ideas on where to look next?
>
>Show us your processor Id from dmesg.
CPU: AMD Turion(tm) 64 X2 Mobile Technology TL-50 (1607.33-MHz K8-class CPU)
Origin =3D "AuthenticAMD" Id =3D 0x40f82 Stepping =3D 2
Features=3D0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG=
E,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
Features2=3D0x2001<SSE3,CX16>
AMD Features=3D0xea500800<SYSCALL,NX,MMX+,FFXSR,RDTSCP,LM,3DNow!+,3DNow!>
AMD Features2=3D0x1f<LAHF,CMP,SVM,ExtAPIC,CR8>
Cores per package: 2
After disabling sio, I don't need hw.apic.idle_cpu - which removes the
RTC interrupt anyway.
--=20
Peter Jeremy
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