Date: Mon, 27 Jun 2005 10:46:40 -0400 From: John Baldwin <jhb@FreeBSD.org> To: freebsd-acpi@freebsd.org Cc: Zahemszky =?iso-8859-2?q?G=E1bor?= <Gabor@Zahemszky.HU> Subject: Re: lockup on SMP machine Message-ID: <200506271046.41253.jhb@FreeBSD.org> In-Reply-To: <42BFE47A.3040907@Zahemszky.HU> References: <42BFE47A.3040907@Zahemszky.HU>
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On Monday 27 June 2005 07:35 am, Zahemszky G=E1bor wrote: > Hi! > > I've got a Dell WS210, 2-processors system (2 P-III/550). (Last BIOS, > version A10.) As an SMP system, it works prefectly: > > $ fgrep -i cpu /var/run/dmesg.boot > cpu0 BSP: > cpu0 on motherboard > cpu1 on motherboard > SMP: AP CPU #1 Launched! > cpu1 AP: > > But if I switch on acpi (set hint.acpi.0.disabled=3D0 on loader prompt), > it locks. Here are the last lines from a verbose ACPI- boot: > > Preloaded elf module "/boot/kernel/if_xl0" at .... > snd_cmi > sound > snd_mss > usb > ugen > ulpt > umass > agp > ng_ubt > r128 > smbfs > libmchain > libiconv > acpi > Table 'FACP' at 0xfdf20 > Table 'APIC' at 0cfdf94 > MADT: Found table at 0xfdf94 > MP configuration Table version 1.4 found at 0xc00f0000 > APIC: Using the MADT enumerator. > MADT: Found CPU APIC ID 0 ACPI ID 1: enabled > SMP: Added CPU 0 (AP) > MADT: Found CPU APIC ID 1 ACPI ID 2: enabled > SMP: Added CPU 1 (AP) > > - and now nothing more. I don't know anything about ACPI/SMP, but > without acpi, the first processor is BSP, and the second is AP. With > acpi, both of them are named AP. That's because ACPI's CPU table (MADT) doesn't have a boot CPU flag to let = you=20 know which CPU is the BSP. It's a harmless difference. > Is it possible to use both of the processors, and the ACPI > implementation on this machine? By the way, OS version is 5-STABLE from > tomorrow (June 27, 2005, CEST) morning. It may be bugs with your BIOS. Does ACPI work ok if you do 'set=20 hint.apic.0.disabled=3D1' from the loader? If so, does it still work ok if= you=20 just do 'set kern.smp.disabled=3D1' from the loader? =2D-=20 John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" =3D http://www.FreeBSD.org
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