Date: Sun, 06 Jun 2004 13:09:26 +0100 From: David Malone <dwmalone@maths.tcd.ie> To: David Schultz <das@FreeBSD.ORG> Cc: cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/amd64/amd64 fpu.c Message-ID: <200406061309.aa25052@salmon.maths.tcd.ie> In-Reply-To: Your message of "Sun, 06 Jun 2004 02:17:03 PDT." <20040606091703.GA6016@VARK.homeunix.com>
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> > This seems to result in a "Fault trap 1: privileged instrustion
> > fault while in the kernel" while executing the ldmscsr instruction.
> > If I comment it out, everything works fine again.
> Sorry, I just backed it out for the mean time. Can you send me
> your dmesg|head please?
Sure - included below. I tried the same instruction in userland and
it caused no problems.
David.
Copyright (c) 1992-2004 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 5.2-CURRENT #3: Sun May 30 22:14:07 GMT 2004
dwmalone@sweetums.eastwall.dwmalone.net:/usr/src/sys/amd64/compile/GENERIC
WARNING: WITNESS option enabled, expect reduced performance.
Preloaded elf kernel "/boot/kernel.old/kernel" at 0xffffffff8091e000.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Opteron(tm) Processor 238 (1804.10-MHz K8-class CPU)
Origin = "AuthenticAMD" Id = 0xf58 Stepping = 8
Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM
OV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
AMD Features=0xe0500800<SYSCALL,NX,MMX+,LM,3DNow!+,3DNow!>
real memory = 3756982272 (3582 MB)
avail memory = 3623555072 (3455 MB)
ACPI APIC Table: <VIAK8 AWRDACPI>
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
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