Date: Thu, 13 Sep 2007 11:28:11 +0100 From: "Frank Shute" <frank@esperance-linux.co.uk> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: enabling SMP Message-ID: <20070913102811.GA1038@melon.esperance-linux.co.uk>
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I've just got a new box, an HP DC5750 with an Athlon X2 3800 but I
can't get SMP working. It *was* cheap :)
My kernel config:
machine i386
cpu I686_CPU
ident MELON_SMP
# To statically compile in device wiring instead of /boot/device.hints
#hints "GENERIC.hints" # Default places to look for devices.
#makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
#options SCHED_ULE # ULE scheduler
options SMP
options SCHED_4BSD # 4BSD scheduler
options PREEMPTION # Enable kernel thread preemption
options INET # InterNETworking
options INET6 # IPv6 communications protocols
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
options UFS_ACL # Support for access control lists
options UFS_DIRHASH # Improve performance on big directories
options MD_ROOT # MD is a potential root device
options NFSCLIENT # Network Filesystem Client
options NFSSERVER # Network Filesystem Server
options NFS_ROOT # NFS usable as /, requires NFSCLIENT
options MSDOSFS # MSDOS Filesystem
options CD9660 # ISO 9660 Filesystem
options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_GPT # GUID Partition Tables.
options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options COMPAT_FREEBSD5 # Compatible with FreeBSD5
options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
options KTRACE # ktrace(1) support
options SYSVSHM # SYSV-style shared memory
options SYSVMSG # SYSV-style message queues
options SYSVSEM # SYSV-style semaphores
options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~128k to driver.
options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~215k to driver.
options ADAPTIVE_GIANT # Giant mutex is adaptive.
device apic # I/O APIC
# Bus support.
device pci
# Floppy drives
device fdc
# ATA and ATAPI devices
device ata
device atadisk # ATA disk drives
device ataraid # ATA RAID drives
device atapicd # ATAPI CDROM drives
device atapifd # ATAPI floppy drives
device atapist # ATAPI tape drives
options ATA_STATIC_ID # Static device numbering
#scsi (iPod)
device scbus
device da
device cd
device pass
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc # AT keyboard controller
device atkbd # AT keyboard
device psm # PS/2 mouse
device vga # VGA video card driver
#device splash # Splash screen and screen saver support
# syscons is the default console driver, resembling an SCO console
device sc
# Enable this for the pcvt (VT220 compatible) console driver
#device vt
#options XSERVER # support for X server on a vt console
#options FAT_CURSOR # start with block cursor
#device agp # support several AGP chipsets
# Power management support (see NOTES for more options)
#device apm
# Add suspend/resume support for the i8254.
#device pmtimer
# Serial (COM) ports
device sio # 8250, 16[45]50 based serial ports
# Parallel port
device ppc
device ppbus # Parallel port bus (required)
device lpt # Printer
#device plip # TCP/IP over parallel
#device ppi # Parallel port interface device
#device vpo # Requires scbus and da
# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device miibus # MII bus support
device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
device bge # Broadcom BCM570xx Gigabit Ethernet
# Pseudo devices.
device loop # Network loopback
device random # Entropy device
device ether # Ethernet support
#device sl # Kernel SLIP
#device ppp # Kernel PPP
device tun # Packet tunnel.
device pty # Pseudo-ttys (telnet etc)
device md # Memory "disks"
device gif # IPv6 and IPv4 tunneling
device faith # IPv6-to-IPv4 relaying (translation)
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device bpf # Berkeley packet filter
# USB support
device uhci # UHCI PCI->USB interface
device ohci # OHCI PCI->USB interface
device ehci # EHCI PCI->USB interface (USB 2.0)
device usb # USB Bus (required)
#device udbp # USB Double Bulk Pipe devices
device ugen # Generic
device uhid # "Human Interface Devices"
device ukbd # Keyboard
device ulpt # Printer
device umass # Disks/Mass storage - Requires scbus and da
device ums # Mouse
#device ural # Ralink Technology RT2500USB wireless NICs
device urio # Diamond Rio 500 MP3 player
#device uscanner # Scanners
In make.conf I've got:
CPUTYPE?=athlon-mp
I've had problems getting ACPCI working, I just get a panic, so I'm
booting with it disabled.
$ sysctl -a | grep cpu
kern.threads.virtual_cpu: 1
kern.ccpu: 1948
kern.sched.ipiwakeup.onecpu: 0
kern.smp.cpus: 1
kern.smp.maxcpus: 16
debug.cpufreq.verbose: 0
debug.cpufreq.lowest: 0
debug.kdb.stop_cpus: 1
debug.PMAP1changedcpu: 0
hw.ncpu: 1
machdep.cpu_idle_hlt: 1
machdep.hlt_cpus: 0
dev.cpu.0.%driver: cpu
dev.cpu.0.%parent: legacy0
and the relevant section from dmesg:
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 6.2-STABLE #0: Thu Sep 13 02:47:10 BST 2007
root@melon.esperance-linux.co.uk:/usr/obj/usr/src/sys/MELON_SMP
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ (1995.02-MHz 686-class CPU)
Origin = "AuthenticAMD" Id = 0x40fb2 Stepping = 2
Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
Features2=0x2001<SSE3,CX16>
AMD Features=0xea500800<SYSCALL,NX,MMX+,FFXSR,RDTSCP,LM,3DNow+,3DNow>
AMD Features2=0x1f<LAHF,CMP,<b2>,<b3>,CR8>
Cores per package: 2
real memory = 803561472 (766 MB)
avail memory = 776843264 (740 MB)
cpu0 on motherboard
Nothing else about CPUs in dmesg.
I had to bodge loader.conf to get more than 64MB working:
hw.physmem="803561472"
and I'm wondering if I need another bodge to get SMP working.
Hope you can help! TIA
BTW, I compiled STABLE with <64MB which I thought was fairly
impressive. It wasn't overly slow either.
--
Frank
Contact info: http://www.esperance-linux.co.uk/misc/contact.html
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