Date: Fri, 18 Mar 2011 14:18:22 +0300 From: Ilya Kazakevich <kazakevichilya@gmail.com> To: Tait <freebsd@t41t.com> Cc: freebsd-questions@freebsd.org Subject: Re: [solved] How to tell whether CPU supports x64? Message-ID: <AANLkTi=%2BURn1iCg68nJO9m6tVt2fpR4ZLQWTJqpoQO0U@mail.gmail.com> In-Reply-To: <20110318110248.GG10069@ece.pdx.edu> References: <20110317213336.GF10069@ece.pdx.edu> <20110318110248.GG10069@ece.pdx.edu>
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> > AMD Features=0x20100000<NX,LM> > AMD Features2=0x1<LAHF> > Cores per package: 16 > Logical CPUs per core: 2 > > The Intel site does say the E5520 supports x64. It seems the lack of LM > in the original system does in fact mean it's a 32-bit only processor. > Look again: AMD Features=0x20100000<NX,LM> NX,*LM* :) > > John Levine <johnl_iecc.com> replied (on 2011/03/17): > > Looking at the Intel web site, the only Xeon I see that runs at 2.4GHz > > and has two cores with two threads is the Xeon 3060, which does indeed > > provide the 64 bit instruction set. > > I looked at the ark.intel.com site hoping to find what processor > would report Id = 0xf29 Stepping = 9. I had no luck. I think the > dual processors is because of HyperThreading, as indicated by the > HTT feature, and that it's actually only a single core. > > > Devin Teske <dteske_vicor.com> replied (on 2011/03/17): > > I wrote this for the job (please, suggestions/comments very welcome): > > #include <stdio.h> /* printf(3) */ > > #include <stdlib.h> /* EXIT_SUCCESS exit(3) */ > > ... > > I tried the program, and it reports "x86_64 support: NO" on both the > original system, and the one above that appears to be x64-capable > (although it is running the i386 install, which may be why?). > > > Again, thanks all for the help. > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >
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