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Date:      Tue, 10 Nov 2009 17:03:00 +0100
From:      Ed Schouten <ed@80386.nl>
To:        Jun Kuriyama <kuriyama@FreeBSD.org>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r199067 - in head/sys: amd64/amd64 i386/i386
Message-ID:  <20091110160300.GD64905@hoeg.nl>
In-Reply-To: <7mvdhigb96.wl%kuriyama@s2factory.co.jp>
References:  <200911090254.nA92sG1G005921@svn.freebsd.org> <20091109225244.GB64905@hoeg.nl> <7mbpjbgt0n.wl%kuriyama@s2factory.co.jp> <20091110055910.GC64905@hoeg.nl> <7mvdhigb96.wl%kuriyama@s2factory.co.jp>

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Hi Jun,

* Jun Kuriyama <kuriyama@FreeBSD.org> wrote:
> You can try with hw.clflush_disable=3D"1" in loader.conf.  If you can
> boot with it, I must be mistaken something (anyway its my fault).

For some reason that switch doesn't seem to have any effect. Reverting the
patch makes my system boot again.

> Can you show me CPUID line at boot message (of course from the kernel
> you can boot) like this?

Sure. These two systems seem to lock up:

Apple MacBook3,1:

| CPU: Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz (2194.52-MHz K8-clas=
s CPU)
|   Origin =3D "GenuineIntel"  Id =3D 0x6fb  Stepping =3D 11
|   Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,=
PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
|   Features2=3D0xe3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,P=
DCM>
|   AMD Features=3D0x20100800<SYSCALL,NX,LM>
|   AMD Features2=3D0x1<LAHF>
|   TSC: P-state invariant

Dell SC440:

| CPU: Intel(R) Pentium(R) Dual  CPU  E2160  @ 1.80GHz (1795.51-MHz K8-clas=
s CPU)
|   Origin =3D "GenuineIntel"  Id =3D 0x6fd  Stepping =3D 13
|   Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,=
PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
|   Features2=3D0xe39d<SSE3,DTES64,MON,DS_CPL,EST,TM2,SSSE3,CX16,xTPR,PDCM>
|   AMD Features=3D0x20100800<SYSCALL,NX,LM>
|   AMD Features2=3D0x1<LAHF>
|   TSC: P-state invariant

--=20
 Ed Schouten <ed@80386.nl>
 WWW: http://80386.nl/

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