kern/56451: [linprocfs] /compat/linux/proc/cpuinfo gives wrong CPU model

[Alexander Best]

The following reply was made to PR kern/56451; it has been noted by GNATS.

From: Alexander Best <alexbestms at wwu.de>
To: <bug-followup at FreeBSD.org>
Cc: Simon Barner <barner at in.tum.de>
Subject: Re: kern/56451: [linprocfs] /compat/linux/proc/cpuinfo gives wrong
 CPU model
Date: Wed, 10 Feb 2010 02:29:19 +0100 (CET)

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 seems cpuinfo is broken too under amd64. this is the output i get:
 
 processor       : 0
 vendor_id       : GenuineIntel
 cpu family      : 15
 model           : 1
 model name      : Intel(R) Pentium(R) Dual  CPU  E2160  @ 1.80GHz
 stepping        : 13
 processor       : 1
 vendor_id       : GenuineIntel
 cpu family      : 15
 model           : 1
 model name      : Intel(R) Pentium(R) Dual  CPU  E2160  @ 1.80GHz
 stepping        : 13
 flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
 cmov pat pse36 b19 b21 mmxext mmx fxsr xmm sse2 b27 b28 b29 3dnow
 cpu MHz         : 1800.01
 bogomips        : 1800.01
 
 since dmesg says
 
 Origin = "GenuineIntel"  Id = 0x6fd  Stepping = 13
 
 the values for model and cpu family are wrong.
 
 with the patch (well lets call it hack ;)) attached the output changes to
 
 processor       : 0
 vendor_id       : GenuineIntel
 cpu family      : 6
 model           : 15
 model name      : Intel(R) Pentium(R) Dual  CPU  E2160  @ 1.80GHz
 stepping        : 13
 processor       : 1
 vendor_id       : GenuineIntel
 cpu family      : 6
 model           : 15
 model name      : Intel(R) Pentium(R) Dual  CPU  E2160  @ 1.80GHz
 stepping        : 13
 flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
 cmov pat pse36 b19 b21 mmxext mmx fxsr xmm sse2 b27 b28 b29 3dnow
 cpu MHz         : 1800.01
 bogomips        : 1800.01
 
 which i believe is what the output should look like. maybe somebody could shed
 some light on this. maybe by starting to look for the place where "class" and
 "cpu" are being defined?
 
 cheers.
 alex
 
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