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Date: Tue, 22 Apr 2008 07:21:51 +0200 From: Jacek Luczak <difrost.kernel@...il.com> To: Justin Mattock <justinmattock@...il.com> CC: Linux Kernel <linux-kernel@...r.kernel.org> Subject: Re: BIOS bug, APIC version if 0 for CPU#0 Hi, > Hello; > with the latest git on a macbook the system can barely boot without > freezing, a work around for me at leat is either disable smp, or once > booted turn on glxgears,or compiling the kernel i.g. when using the > processors I'm not receiving a freeze, only when everything starts > lowering down. in dmesg I'm noticing BIOS bug, APIC version is 0 for > CPU#0! fixing up to 0x10. (tell you're hw vendor) could this be the > reason for the system freezes?, I don't think so. On my machine there's no freezes with latest git and: ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) BIOS bug, APIC version is 0 for CPU#0! fixing up to 0x10. (tell your hw vendor) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) BIOS bug, APIC version is 0 for CPU#0! fixing up to 0x10. (tell your hw vendor) I've got exactly the same messages. > also I didnt have a camera handy on me > but the screen spit out = Bug spinlock lockup on CPU#0 > swapper/0. c17fa7c0 PID 0, comm: swapper not tainted. Can you try to write down more of those bug messages? > I dont have a problem disabling smp, except when I cat /proc/cpuinfo I > don't see anything about my cores. What exactly you expect to see in /proc/cpuinfp while smp is disabled? > I know this is a stupid question > but will it hurt the system if smp is disabled > for the macbook pro ati chipset.? No it won't. -Jacek -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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