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Re: Large memory with netbsd 4



On Wed, 6 Aug 2008, Manuel Bouyer wrote:

Hmmm, I'm running -current on a machine with 8GB of RAM, and had to
disable the top 4GB to avoid lots of random crashes.  IIRC, someone on
this list indicated that there was an "issue" with DMA bounce buffers
above the 4GB boundary point.

A specific device may have issues with memory above 4GB, but I don't
think the bus_dma code in general has. I've been running amd64
on systems with more than 4GB without troubles.

I don't think I'm running anything particularly esoteric on this box. It's just a quad-core AMD64 on a ASUS M2N-E motherboard. Just in case, I've attached my kernel config and dmesg output.

With 4GB enabled, you're likely to use a physical segment above the 4GB limit,
as the PCI bus lives in the top 4GB physical address space.

Hmmm. I thought the PCI hole got explicitly mapped just _below_ the 4GB boundary. At least, that was the explanation for why my machine uses only 3.5 GB when I set PHYSMEM_MAX_ADDR=4096


----------------------------------------------------------------------
|   Paul Goyette   | PGP DSS Key fingerprint: |  E-mail addresses:   |
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----------------------------------------------------------------------
### START CONFIG FILE "SPEEDY"
include "arch/amd64/conf/std.amd64"

options         INCLUDE_CONFIG_FILE     # embed config file in kernel binary

#ident          "GENERIC-$Revision: 1.218 $"

ident           "SPEEDY (ASUS M2N-E) 2008-08-03 20:58:50"

maxusers        64              # estimated number of users

options         INSECURE        # disable kernel security levels - X needs this
options         RTC_OFFSET=0    # hardware clock is this many mins. west of GMT
options         NTP             # NTP phase/frequency locked loop
options         KTRACE          # system call tracing via ktrace(1)
#options        SYSTRACE        # system call vetting via systrace(1)
options         SYSVMSG         # System V-like message queues
options         SYSVSEM         # System V-like semaphores
options         SYSVSHM         # System V-like memory sharing
#options        SHMMAXPGS=2048  # 2048 pages is the default
options         P1003_1B_SEMAPHORE
options         LKM             # loadable kernel modules
options         MODULAR
options         MEMORY_DISK_HOOKS
options         MEMORY_DISK_DYNAMIC
options         WAPBL           # File system journaling
options         VGA_POST

options         USERCONF        # userconf(4) support
options         SYSCTL_INCLUDE_DESCR    # Include sysctl descriptions in kernel

options         POWERNOW_K8
options         SOFTDEP         # FFS soft updates support.
options         QUOTA           # UFS quotas
options         NFSSERVER       # Network File System server

options         EXEC_ELF32
options         COMPAT_NETBSD32
options         COMPAT_BSDPTY   # /dev/[pt]ty?? ptys.
options         COMPAT_40

options         DIAGNOSTIC      # expensive kernel consistency checks
#options        DEBUG           # expensive debugging checks/support
options         KMEMSTATS       # kernel memory statistics (vmstat -m)

# Because gcc omits the frame pointer for any -O level, the line below
# is needed to make backtraces in DDB work.
#
makeoptions     COPTS="-O2 -fno-omit-frame-pointer"
options         DDB             # in-kernel debugger
#options        DDB_ONPANIC=1   # see also sysctl(8): `ddb.onpanic'
options         DDB_HISTORY_SIZE=512    # enable history editing in DDB
#options        KGDB            # remote debugger
#options        KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=9600
makeoptions     DEBUG="-g"      # compile full symbol table

# File systems
file-system     FFS             # UFS
file-system     MFS             # memory file system
file-system     NFS             # Network File System client
file-system     CD9660          # ISO 9660 + Rock Ridge file system
file-system     MSDOSFS
file-system     FDESC           # /dev/fd
file-system     KERNFS          # /kern
file-system     NULLFS          # loopback file system
file-system     PROCFS          # /proc
file-system     PTYFS           # /dev/pts/N support
file-system     TMPFS           # Efficient memory file-system

# Networking options
options         GATEWAY         # packet forwarding
options         INET            # IP + ICMP + TCP + UDP
options         PFIL_HOOKS      # pfil(9) packet filter hooks
options         IPFILTER_LOG    # ipmon(8) log support
options         IPFILTER_LOOKUP # ippool(8) support
#options        IPFILTER_DEFAULT_BLOCK  # block all packets by default

# These options enable verbose messages for several subsystems.
# Warning, these may compile large string tables into the kernel!
#options        ACPIVERBOSE     # verbose ACPI configuration messages
#options        MIIVERBOSE      # verbose PHY autoconfig messages
#options        PCIVERBOSE      # verbose PCI device autoconfig messages
#options        SCSIVERBOSE     # human readable SCSI error messages
#options        USBVERBOSE      # verbose USB device autoconfig messages

#
# wscons options
#
options         WSEMUL_VT100            # VT100 / VT220 emulation
options         WS_KERNEL_FG=WSCOL_GREEN
options         WSDISPLAY_COMPAT_PCVT           # emulate some ioctls
options         WSDISPLAY_COMPAT_SYSCONS        # emulate some ioctls
options         WSDISPLAY_COMPAT_USL            # VT handling
options         WSDISPLAY_COMPAT_RAWKBD         # can get raw scancodes
options         PCDISPLAY_SOFTCURSOR
options         WSDISPLAY_SCROLLSUPPORT

config          netbsd  root on wd0a type ffs

#
# Pseudo-Devices
#

# crypto pseudo-devices
pseudo-device   crypto                  # /dev/crypto device
pseudo-device   swcrypto                # software crypto implementation

# disk/mass storage pseudo-devices
pseudo-device   cgd             4       # cryptographic disk devices
#pseudo-device  fss             4       # file system snapshot device
pseudo-device   md              1       # memory disk device (ramdisk)
pseudo-device   vnd                     # disk-like interface to files
#options        VND_COMPRESSION         # compressed vnd(4)

# network pseudo-devices
pseudo-device   bpfilter                # Berkeley packet filter
pseudo-device   ipfilter                # IP filter (firewall) and NAT
pseudo-device   loop                    # network loopback

# miscellaneous pseudo-devices
pseudo-device   pty                     # pseudo-terminals
pseudo-device   sequencer       1       # MIDI sequencer
pseudo-device   rnd                     # /dev/random and in-kernel generator
pseudo-device   clockctl                # user control of clock subsystem
pseudo-device   ksyms                   # /dev/ksyms
#pseudo-device  pf                      # PF packet filter
#pseudo-device  pflog                   # PF log if
pseudo-device   lockstat
pseudo-device   drvctl
pseudo-device   pad

# wscons pseudo-devices
pseudo-device   wsmux                   # mouse & keyboard multiplexor
pseudo-device   wsfont

options         PAX_MPROTECT=0          # PaX mprotect(2) restrictions
options         PAX_ASLR=0              # PaX Address Space Layout Randomization

options         DKWEDGE_AUTODISCOVER
options         DKWEDGE_METHOD_GPT

#
# Device configuration
#

# Mainbus configuration

mainbus0        at root
cpu0            at mainbus0
cpu1            at mainbus0
cpu2            at mainbus0
cpu3            at mainbus0
ioapic0         at mainbus0
acpi0           at mainbus0
options         ACPI_SCANPCI
pci0            at mainbus0 bus 0
pci1            at ppb0 bus 1
pci2            at ppb1 bus 2

# ACPI devices (includes formerly-isa stuff!)
hpet0           at acpi0
aiboost0        at acpi0
acpibut0        at acpi0                # ACPI Button
acpitz0         at acpi0                # ACPI Thermal Zone
com0            at acpi0
lpt0            at acpi0
#pckbc0         at acpi0
attimer0        at acpi0
#fdc0           at acpi0
#fd0            at fdc0
pcppi0          at acpi0
midi0           at pcppi0
sysbeep0        at pcppi0
acpiec0         at acpi0        # ACPI Embedded Controller (late binding)
acpiecdt0       at acpi0        # ACPI Embedded Controller (early binding)
#npx0           at acpi0

# PCI Bus configuration

amdtemp*        at pci? dev ? function ?        # XXX
pcib0           at pci0 dev 1 function 0
nfsmbc0         at pci0 dev 1 function 1
nfsmb0          at nfsmbc0
iic0            at nfsmb0
nfsmb1          at nfsmbc0
iic1            at nfsmb1
ohci0           at pci0 dev 2 function 0
ehci0           at pci0 dev 2 function 1
viaide0         at pci0 dev 4 function 0
viaide1         at pci0 dev 5 function 0
viaide2         at pci0 dev 5 function 1
viaide3         at pci0 dev 5 function 2
ppb0            at pci0 dev 6 function 0
azalia0         at pci0 dev 6 function 1
nfe0            at pci0 dev 8 function 0
makphy0         at nfe0 phy 1
ppb1            at pci0 dev 15 function 0
azalia1         at pci2 dev 0 function 1
pchb0           at pci0 dev 24 function 0
pchb1           at pci0 dev 24 function 1
pchb2           at pci0 dev 24 function 2
pchb3           at pci0 dev 24 function 3
pchb4           at pci0 dev 24 function 4

vga0            at pci2 dev 0 function 0
wsdisplay0      at vga0 kbdmux 1
#drm0           at vga0

isa0            at pcib0
itesio0         at isa0 port 0x2e

audio0          at azalia0
audio1          at azalia1
audio2          at pad0

# IDE Disk/CD/Tape configuration

atabus0         at viaide0 channel 0
atabus1         at viaide1 channel 0
atabus2         at viaide1 channel 1
atabus3         at viaide2 channel 0
atabus4         at viaide2 channel 1
atabus5         at viaide3 channel 0
atabus6         at viaide3 channel 1

wd0             at atabus4 drive 0
wd*             at atabus? drive ?

# USB keyboard, mouse, and printer

usb0            at ohci0
uhub0           at usb0
usb1            at ehci0
uhub1           at usb1
uhub*           at uhub? port ?

uhidev*         at uhub? port ? configuration ? interface ?
ukbd*           at uhidev? reportid ?
wskbd*          at ukbd? console ? mux 1
ums*            at uhidev? reportid ? 
wsmouse*        at ums? mux 0
ulpt*           at uhub? port ? configuration ? interface ?
uhid*           at uhidev? reportid ?
ugen*           at uhub? port ? 
options         UGEN_BULK_RA_WB # Read-ahead/write-behind on ugen bulk endpts
umass*          at uhub? port ? configuration ? interface ?
scsibus*        at umass?
sd*             at scsibus?

# PS/2 keyboard and mouse

#pckbd0         at pckbc0
#wskbd0         at pckbd0 mux 1
#wskbd0         at pckbd0
#pms0           at pckbc0
#wsmouse0       at pms0 mux 0

# NVIDIA nForce2/3/4 SMBus controller
spdmem0         at iic0 addr 0x50
spdmem1         at iic0 addr 0x51
spdmem2         at iic0 addr 0x52
spdmem3         at iic0 addr 0x53
sdtemp0         at iic0 addr 0x18        
sdtemp1         at iic0 addr 0x19        
sdtemp2         at iic0 addr 0x1a        
sdtemp3         at iic0 addr 0x1b        

options         DDB_ONPANIC=0
options         DDB_COMMANDONENTER="call ddb_vgapost; bt"

# Temporary, until bounce-buffers are fixed
options         PHYSMEM_MAX_ADDR=4096
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 4.99.72 (SPEEDY (ASUS M2N-E) 2008-08-03 20:58:50) #0: Sun Aug  3 
15:18:58 PDT 2008
        
paul%speedy.whooppee.com@localhost:/build/obj/amd64/sys/arch/amd64/compile/SPEEDY
total memory = 3070 MB
avail memory = 2967 MB
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
SMBIOS rev. 2.4 @ 0xf0000 (72 entries)
System manufacturer System Product Name (System Version)
mainbus0 (root)
cpu0 at mainbus0 apid 0: AMD 686-class, 2310MHz, id 0x100f22
cpu0: erratum 298 present
cpu0: erratum 298 present
cpu0: erratum 309 present
cpu0: WARNING: errata present, BIOS upgrade may be
cpu0: WARNING: necessary to ensure reliable operation
cpu1 at mainbus0 apid 1: AMD 686-class, 2310MHz, id 0x100f22
cpu2 at mainbus0 apid 2: AMD 686-class, 2310MHz, id 0x100f22
cpu3 at mainbus0 apid 3: AMD 686-class, 2310MHz, id 0x100f22
ioapic0 at mainbus0 apid 4: pa 0xfec00000, version 11, 24 pins
acpi0 at mainbus0: Intel ACPICA 20080321
acpi0: X/RSDT: OemId <Nvidia,ASUSACPI,42302e31>, AslId <AWRD,00000000>
acpi0: SCI interrupting at int 9
acpi0: fixed-feature power button present
timecounter: Timecounter "ACPI-Fast" frequency 3579545 Hz quality 1000
ACPI-Fast 24-bit timer
acpibut0 at acpi0 (PWRB, PNP0C0C): ACPI Power Button
attimer0 at acpi0 (TMR, PNP0100): AT Timer
attimer0: io 0x40-0x43
hpet0 at acpi0 (HPET, PNP0103)
hpet0: mem 0xfefff000-0xfefff3ff irq 0,8
timecounter: Timecounter "hpet0" frequency 25000000 Hz quality 2000
pcppi0 at acpi0 (SPKR, PNP0800)
pcppi0: io 0x61
midi0 at pcppi0: PC speaker (CPU-intensive output)
sysbeep0 at pcppi0
FDC0 (PNP0700) at acpi0 not configured
com0 at acpi0 (UAR1, PNP0501-1)
com0: io 0x3f8-0x3ff irq 4
com0: ns16550a, working fifo
lpt0 at acpi0 (LPT1, PNP0400-1)
lpt0: io 0x378-0x37f irq 7
aiboost0 at acpi0 (ASOC, ATK0110-16843024)
aiboost0: ASUS AI Boost Hardware monitor
FAN (PNP0C0B) at acpi0 not configured
acpitz0 at acpi0 (THRM): active cooling level 0: 73.0C critical 75.0C passive 
40.0C
attimer0: attached to pcppi0
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
vendor 0x10de product 0x0369 (RAM memory, revision 0xa2) at pci0 dev 0 function 
0 not configured
pcib0 at pci0 dev 1 function 0
pcib0: vendor 0x10de product 0x0360 (rev. 0xa3)
nfsmbc0 at pci0 dev 1 function 1: vendor 0x10de product 0x0368 (rev. 0xa3)
nfsmb0 at nfsmbc0 SMBus 1
iic0 at nfsmb0: I2C bus
spdmem0 at iic0 addr 0x50
spdmem0: DDR2 SDRAM memory, no parity or ECC, 2048MB, 800MHz (PC2-6400)
spdmem0: 14 rows, 10 cols, 2 ranks, 8 banks/chip, 2.50ns cycle time
spdmem0: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem0: c 2500, tCAS 48, tRCD 50, tRP 50, tRAS 45
spdmem0: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
spdmem1 at iic0 addr 0x51
spdmem1: DDR2 SDRAM memory, no parity or ECC, 2048MB, 800MHz (PC2-6400)
spdmem1: 14 rows, 10 cols, 2 ranks, 8 banks/chip, 2.50ns cycle time
spdmem1: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem1: c 2500, tCAS 48, tRCD 50, tRP 50, tRAS 45
spdmem1: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
spdmem2 at iic0 addr 0x52
spdmem2: DDR2 SDRAM memory, no parity or ECC, 2048MB, 800MHz (PC2-6400)
spdmem2: 14 rows, 10 cols, 2 ranks, 8 banks/chip, 2.50ns cycle time
spdmem2: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem2: c 2500, tCAS 48, tRCD 50, tRP 50, tRAS 45
spdmem2: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
spdmem3 at iic0 addr 0x53
spdmem3: DDR2 SDRAM memory, no parity or ECC, 2048MB, 800MHz (PC2-6400)
spdmem3: 14 rows, 10 cols, 2 ranks, 8 banks/chip, 2.50ns cycle time
spdmem3: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem3: c 2500, tCAS 48, tRCD 50, tRP 50, tRAS 45
spdmem3: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
nfsmb1 at nfsmbc0 SMBus 2
iic1 at nfsmb1: I2C bus
ohci0 at pci0 dev 2 function 0: vendor 0x10de product 0x036c (rev. 0xa1)
APCF: Picked IRQ 20 with weight 0
ohci0: interrupting at ioapic0 pin 20
ohci0: OHCI version 1.0, legacy support
usb0 at ohci0: USB revision 1.0
ehci0 at pci0 dev 2 function 1: vendor 0x10de product 0x036d (rev. 0xa2)
APCL: Picked IRQ 21 with weight 0
ehci0: interrupting at ioapic0 pin 21
ehci0: EHCI version 1.0
ehci0: companion controller, 10 ports each: ohci0
usb1 at ehci0: USB revision 2.0
viaide0 at pci0 dev 4 function 0
viaide0: NVIDIA MCP55 IDE Controller (rev. 0xa1)
viaide0: bus-master DMA support present
viaide0: primary channel configured to compatibility mode
viaide0: primary channel interrupting at ioapic0 pin 14
atabus0 at viaide0 channel 0
viaide0: secondary channel configured to compatibility mode
viaide0: secondary channel ignored (disabled)
viaide1 at pci0 dev 5 function 0
viaide1: NVIDIA MCP55 Serial ATA Controller (rev. 0xa3)
viaide1: bus-master DMA support present
viaide1: primary channel wired to native-PCI mode
APSI: Picked IRQ 22 with weight 0
viaide1: using ioapic0 pin 22 for native-PCI interrupt
atabus1 at viaide1 channel 0
viaide1: secondary channel wired to native-PCI mode
atabus2 at viaide1 channel 1
viaide2 at pci0 dev 5 function 1
viaide2: NVIDIA MCP55 Serial ATA Controller (rev. 0xa3)
viaide2: bus-master DMA support present
viaide2: primary channel wired to native-PCI mode
APSJ: Picked IRQ 23 with weight 0
viaide2: using ioapic0 pin 23 for native-PCI interrupt
atabus3 at viaide2 channel 0
viaide2: secondary channel wired to native-PCI mode
atabus4 at viaide2 channel 1
viaide3 at pci0 dev 5 function 2
viaide3: NVIDIA MCP55 Serial ATA Controller (rev. 0xa3)
viaide3: bus-master DMA support present
viaide3: primary channel wired to native-PCI mode
ASA2: Picked IRQ 20 with weight 1
viaide3: using ioapic0 pin 20 for native-PCI interrupt
atabus5 at viaide3 channel 0
viaide3: secondary channel wired to native-PCI mode
atabus6 at viaide3 channel 1
ppb0 at pci0 dev 6 function 0: vendor 0x10de product 0x0370 (rev. 0xa2)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
azalia0 at pci0 dev 6 function 1: Generic High Definition Audio Controller
AAZA: Picked IRQ 21 with weight 1
azalia0: interrupting at ioapic0 pin 21
azalia0: host: 0x10de/0x0371 (rev. 162), HDA rev. 1.0
nfe0 at pci0 dev 8 function 0: vendor 0x10de product 0x0373 (rev. 0xa3)
APCH: Picked IRQ 22 with weight 1
nfe0: interrupting at ioapic0 pin 22
nfe0: Ethernet address 00:1e:8c:3e:2b:95
makphy0 at nfe0 phy 1: Marvell 88E1116 Gigabit PHY, rev. 1
makphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
ppb1 at pci0 dev 15 function 0: vendor 0x10de product 0x0377 (rev. 0xa3)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled, rd/line, wr/inv ok
vga0 at pci2 dev 0 function 0: vendor 0x1002 product 0x9588 (rev. 0x00)
wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
drm at vga0 not configured
azalia1 at pci2 dev 0 function 1: Generic High Definition Audio Controller
APC7: Picked IRQ 16 with weight 0
azalia1: interrupting at ioapic0 pin 16
azalia1: host: 0x1002/0xaa08 (rev. 0), HDA rev. 1.0
pchb0 at pci0 dev 24 function 0
pchb0: vendor 0x1022 product 0x1200 (rev. 0x00)
pchb1 at pci0 dev 24 function 1
pchb1: vendor 0x1022 product 0x1201 (rev. 0x00)
pchb2 at pci0 dev 24 function 2
pchb2: vendor 0x1022 product 0x1202 (rev. 0x00)
amdtemp0 at pci0 dev 24 function 3
amdtemp0: AMD CPU Temperature Sensors (Family10h / Family11h)
pchb4 at pci0 dev 24 function 4
pchb4: vendor 0x1022 product 0x1204 (rev. 0x00)
isa0 at pcib0
itesio0 at isa0 port 0x2e-0x2f: iTE IT8716F Super I/O (rev 1)
itesio0: Hardware Monitor registers at 0x290
itesio0: Watchdog Timer present
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
timecounter: Timecounter "TSC" frequency 2310798780 Hz quality 3000
azalia0: codec[0]: Analog Devices AD1988B (rev. 4.0), HDA rev. 1.0
audio0 at azalia0: full duplex, independent
azalia1: codec[0]: ATI R600 HDMI (rev. 0.0), HDA rev. 1.0
audio1 at azalia1: full duplex, independent
uhub0 at usb0: vendor 0x10de OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 10 ports with 10 removable, self powered
uhub1 at usb1: vendor 0x10de EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub1: 10 ports with 10 removable, self powered
viaide2 port 1: device present, speed: 3.0Gb/s
ehci0: handing over low speed device on port 4 to ohci0
wd0 at atabus4 drive 0: <WDC WD5000AAKS-00TMA0>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 465 GB, 969021 cyl, 16 head, 63 sec, 512 bytes/sect x 976773168 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
wd0(viaide2:1:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using DMA)
pad0: outputs: 44100Hz, 16-bit, stereo
audio2 at pad0: half duplex
boot device: wd0
root on wd0a dumps on wd0b
uhidev0 at uhub0 port 4 configuration 1 interface 0
uhidev0: Justcom Technology USB KVM Switch, rev 1.10/1.00, addr 2, iclass 3/1
ukbd0 at uhidev0: 8 modifier keys, 6 key codes
wskbd0 at ukbd0: console keyboard, using wsdisplay0
uhidev1 at uhub0 port 4 configuration 1 interface 1
uhidev1: Justcom Technology USB KVM Switch, rev 1.10/1.00, addr 2, iclass 3/1
ums0 at uhidev1: 5 buttons and Z dir.
wsmouse0 at ums0 mux 0
acpitz0: normal state on 'temperature'
acpitz0: normal state on 'temperature'
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)
nfs server quicky:/home: not responding
nfs server quicky:/home: is alive again
Accounting started


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