Date: Fri, 22 Oct 2010 11:55:15 +0300 From: Andriy Gapon <avg@freebsd.org> To: Jacob Lambert <tharant@gmail.com> Cc: "freebsd-amd64@freebsd.org" <freebsd-amd64@freebsd.org> Subject: Re: 8.1-RELEASE - fatal trap 12 during install Message-ID: <4CC15173.8000208@freebsd.org> In-Reply-To: <4CBBECB0.3090402@icyb.net.ua> References: <AANLkTimmVgj_xNFNa3RnfFvwQPVXnDX4OvXy_2KWOewm@mail.gmail.com> <4CB8E525.40702@icyb.net.ua> <AANLkTi=cnz%2B0Fw1U7rOu8wfmxPQsTtiPzzUk2aJuAER8@mail.gmail.com> <4CB97FDE.4040803@icyb.net.ua> <AANLkTinNN7F8gWWkL9SGbMm4=bROKQgMUHLUeGji2q1C@mail.gmail.com> <4CBBECB0.3090402@icyb.net.ua>
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[ping] on 18/10/2010 09:44 Andriy Gapon said the following: > on 16/10/2010 16:40 Jacob Lambert said the following: >> On Saturday, October 16, 2010, Andriy Gapon <avg@icyb.net.ua> wrote: >>> [restored CC] >>> >>> on 16/10/2010 03:37 Jacob Lambert said the following: >>>> On Friday, October 15, 2010, Andriy Gapon <avg@icyb.net.ua> wrote: >>>>> on 15/10/2010 22:20 Jacob Lambert said the following: >>>>>> Hello everyone, >>>>>> >>>>>> I've got a shiny new Supermicro H8QG6-F w/ 4x Opteron 6168 12 core >>>>>> CPUs and 128GB of DDR3 1333 ECC RAM onto which I've been trying to >>>>> >>>>> Do I read it correct that that's 48 logical CPUs total? >>>>> >>>> Yup, 48. :) >>> >>> http://article.gmane.org/gmane.os.freebsd.current/128099 >>> >>> In addition to that cpumask_t is only 32-bit even on amd64 and it's used all >>> over the place, so currently you won't have any luck with > 32 CPUs. >>> :-( >> Thanks for the link! >> BTW, I've got a box for testing if anybody wants to tackle >32 CPUs. :) > > I've just followed up to that post with a patch. > It should allow you to boot without panics, although not more than 32 CPUs will > actually be used. > Could you please test the patch and post your results in _that_ thread? > Thanks! > >>> You might want to try booting with ACPI enabled and only one socket populated. >> Already tried that and I get the same error as if it's fully populated. > > That's probably because the LAPICs are still marked as enabled and we check > whether a CPU is enabled after UMA initialization. > -- Andriy Gapon
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