Date: Tue, 7 Mar 2000 13:30:07 -0700 From: "Tim Pushor" <timp@crossthread.com> To: <questions@freebsd.org> Subject: ncr problem on Compaq proliant 4500 Message-ID: <040501bf8874$003af170$9828f99f@shl.com>
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Hello,
I am having a problem on a Compaq Proliant 4500 with its integrated SCSI
controller where on average once per month the machine will be unable to
access any SCSI devices (like the system disk :), and the console will
display the following message:
ncr0: queue is empty
I have seen this mentioned a few times in the list, but havn't seen any
logical reason or resolution.
The only thing out of the ordinary at all is that there is a Compaq 35/70
DLT in a rack chassis. These are supposed to be self terminating ... This
tape drive is on the second integrated Compaq SCSI controller. Could a
problem on that bus affect the proper operation of the first? (at least as
far as the OS/ncr-driver is concerned).
Thanks for any help,
Tim
---
My config:
FreeBSD 3.3-RELEASE
Compaq Proliant 4500 w/single 450Mhz Pentium II CPU
256M RAM
Compaq IDE CDrom
3COM 3C905B 10/100 NIC (Internal Compaq NIC not used)
Single 4G Compaq SCSI-2 wide HDD (on first integrated Compaq SCSI
controller)
Compaq 35/70 DLT (on second integrated Compaq SCSI controller)
Kernel config:
machine "i386"
cpu "I386_CPU"
cpu "I486_CPU"
cpu "I586_CPU"
cpu "I686_CPU"
ident EDSRELAY
maxusers 128
options INET #InterNETworking
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep
this!]
options MSDOSFS #MSDOS Filesystem
options "CD9660" #ISO 9660 Filesystem
options "CD9660_ROOT" #CD-ROM usable as root. "CD9660"
req'ed
options PROCFS #Process filesystem
options "COMPAT_43" #Compatible with BSD 4.3 [KEEP
THIS!]
options SYSVSHM #SYSV-style shared memory
options SYSVMSG #SYSV-style message queues
options SYSVSEM #SYSV-style semaphores
options "MAXMEM=(256*1024)"
config kernel root on wd0
controller isa0
controller pnp0 # PnP support for ISA
controller pci0
# Floppy drives
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2
disk fd0 at fdc0 drive 0
disk fd1 at fdc0 drive 1
# IDE controller and disks
options "CMD640" # work around CMD640 chip deficiency
controller wdc0 at isa? port "IO_WD1" bio irq 14
disk wd0 at wdc0 drive 0
disk wd1 at wdc0 drive 1
controller wdc1 at isa? port "IO_WD2" bio irq 15
disk wd2 at wdc1 drive 0
disk wd3 at wdc1 drive 1
# ATAPI devices
options ATAPI #Enable ATAPI support for IDE bus
options ATAPI_STATIC #Don't do it as an LKM
device acd0 #IDE CD-ROM
# SCSI Controllers
# A single entry for any of these controllers (ncr, ahb, ahc) is
# sufficient for any number of installed devices.
controller ncr0 # NCR/Symbios Logic
controller scbus0 # SCSI bus (required)
device da0 # Direct Access (disks)
device sa0 # Sequential Access (tape etc)
device cd0 # CD
#device pass0 # Passthrough device (direct SCSI)
# atkbdc0 controls both the keyboard and the PS/2 mouse
controller atkbdc0 at isa? port IO_KBD tty
device atkbd0 at isa? tty irq 1
#device psm0 at isa? tty irq 12
device vga0 at isa? port ? conflicts
# splash screen/screen saver
pseudo-device splash
# syscons is the default console driver, resembling an SCO console
device sc0 at isa? tty
# Floating point support - do not disable.
device npx0 at isa? port IO_NPX irq 13
# Serial (COM) ports
device sio0 at isa? port "IO_COM1" flags 0x10 tty irq 4
device sio1 at isa? port "IO_COM2" tty irq 3
# Parallel port
device ppc0 at isa? port? flags 0x40 net irq 7
controller ppbus0 # Parallel port bus (required)
device lpt0 at ppbus? # Printer
#device plip0 at ppbus? # TCP/IP over parallel
device ppi0 at ppbus? # Parallel port interface device
#controller vpo0 at ppbus? # Requires scbus and da0
# PCI Ethernet NICs.
device fxp0 # Intel EtherExpress PRO/100B (82557, 82558)
device tl0 # Texas Instruments ThunderLAN
device xl0 # 3COM 3C905b
# Pseudo devices - the number indicates how many units to allocated.
pseudo-device loop # Network loopback
pseudo-device ether # Ethernet support
pseudo-device pty 32
pseudo-device gzip # Exec gzipped a.out's
pseudo-device bpfilter 1 #Berkeley packet filter
pseudo-device snp 1
dmesg output:
Copyright (c) 1992-1999 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.3-RELEASE #0: Tue Nov 9 17:58:36 GMT 1999
timp@crossthread.com:/usr/src/sys/compile/RELAY
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 448959052 Hz
CPU: Pentium II/Xeon/Celeron (448.96-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x652 Stepping = 2
Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,
PAT,PSE36,MMX,FXSR>
real memory = 268435456 (262144K bytes)
avail memory = 258592768 (252532K bytes)
Preloaded elf kernel "kernel" at 0xc0269000.
Pentium Pro MTRR support enabled
Probing for devices on PCI bus 0:
chip0: <Intel 82443BX host to PCI bridge (AGP disabled)> rev 0x02 on
pci0.0.0
vga0: <Cirrus Logic GD5446 SVGA controller> rev 0x45 on pci0.11.0
chip1: <PCI to PCI bridge (vendor=1011 device=0022)> rev 0x04 on pci0.13.0
xl0: <3Com 3c905B-TX Fast Etherlink XL> rev 0x30 int a irq 5 on pci0.15.0
xl0: Ethernet address: 00:10:5a:9b:c3:32
xl0: autoneg complete, link status good (half-duplex, 100Mbps)
chip2: <Intel 82371AB PCI to ISA bridge> rev 0x02 on pci0.20.0
ide_pci0: <Intel PIIX4 Bus-master IDE controller> rev 0x01 on pci0.20.1
chip3: <Intel 82371AB Power management controller> rev 0x02 on pci0.20.3
Probing for devices on PCI bus 1:
tl0: <Compaq Netelligent 10/100 Proliant> rev 0x10 int a irq 9 on pci1.7.0
tl0: Ethernet address: 00:08:c7:9f:22:e5
tl0: autoneg not complete, no carrier
ncr0: <ncr 53c875 fast20 wide scsi> rev 0x14 int a irq 10 on pci1.9.0
ncr1: <ncr 53c875 fast20 wide scsi> rev 0x14 int b irq 11 on pci1.9.1
Probing for PnP devices:
Probing for devices on the ISA bus:
sc0 on isa
sc0: VGA color <16 virtual consoles, flags=0x0>
atkbdc0 at 0x60-0x6f on motherboard
atkbd0 irq 1 on isa
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (atapi): <COMPAQ CR-589/GC4K>, removable, accel, dma, iordis
acd0: drive speed 5515KB/sec, 512KB cache
acd0: supported read types: CD-R, CD-RW, CD-DA, packet track
acd0: Audio: play, 256 volume levels
acd0: Mechanism: ejectable tray
acd0: Medium: no/blank disc inside, unlocked
wdc1 not found at 0x170
ppc0 at 0x3bc irq 7 flags 0x40 on isa
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
lpt0: <generic printer> on ppbus 0
lpt0: Interrupt-driven port
ppi0: <generic parallel i/o> on ppbus 0
vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
npx0 on motherboard
npx0: INT 16 interface
Waiting 2 seconds for SCSI devices to settle
sa0 at ncr1 bus 0 target 3 lun 0
sa0: <DEC DLT2000 15/30 GB 840B> Removable Sequential Access SCSI-2 device
sa0: 5.000MB/s transfers (5.000MHz, offset 15)
changing root device to da0s1a
da0 at ncr0 bus 0 target 0 lun 0
da0: <COMPAQ DFHSS4W 4141> Fixed Direct Access SCSI-2 device
da0: 20.000MB/s transfers (10.000MHz, offset 15, 16bit), Tagged Queueing
Enabled
da0: 4094MB (8386000 512 byte sectors: 255H 63S/T 522C)
WARNING: / was not properly dismounted
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