Date: Thu, 14 Oct 1999 23:16:50 -0700 From: Parag Patel <parag@cgt.com> To: freebsd-stable@freebsd.org, freebsd-scsi@freebsd.org Subject: Odd dmesg output or SCSI tagged-queueing problem? Message-ID: <689.939968210@pinhead.parag.codegen.com>
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Hello. I just noticed my system's two IBM SCSI disks aren't displaying
a "tagged queueing enabled" message. I only noticed it when I added a
3rd disk to the system today. Here's the edited dmesg output (the
complete output is appended below):
...
ahc0: <Adaptec aic7880 Ultra SCSI adapter> rev 0x00 int a irq 19 on pci0.6.0
ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
...
da2 at ahc0 bus 0 target 2 lun 0
da2: <QUANTUM XP34550W LYK8> Fixed Direct Access SCSI-2 device
da2: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing Enabled
da2: 4341MB (8890760 512 byte sectors: 255H 63S/T 553C)
...
da1 at ahc0 bus 0 target 1 lun 0
da1: <IBM DCAS-34330W S65A> Fixed Direct Access SCSI-2 device
da1: 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
da1: 4134MB (8467200 512 byte sectors: 255H 63S/T 527C)
...
da0 at ahc0 bus 0 target 0 lun 0
da0: <IBM DCAS-34330W S65A> Fixed Direct Access SCSI-2 device
da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
da0: 4134MB (8467200 512 byte sectors: 255H 63S/T 527C)
...
Now I seem to remember that these IBM drives used to be displayed like
the Quantum, that is with the string "Tagged Queueing Enabled". I
searched all the /var/log/messages files to see if any earlier kernel
did display this, but nothing up to 4.0-CURRENT as of May 1999 displayed
this string, and I've switched to running STABLE since.
A search of the mail archives didn't turn up anything directly related
to this, although one other person with the *identical* 7880 and IBM
drive *did* have "Tagged Queueing Enabled" in their dmesg output. So it
seems that at least I'm not mis-remembering this. I think.
Thoughts? Thanks!
-- Parag Patel
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-STABLE #3: Thu Oct 14 15:12:05 PDT 1999
root@pinhead.parag.codegen.com:/usr/src/sys/compile/PINHEAD
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium II (686-class CPU)
Origin = "GenuineIntel" Id = 0x634 Stepping = 4
Features=0x80fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,MMX>
real memory = 268435456 (262144K bytes)
avail memory = 258191360 (252140K bytes)
Programming 24 pins in IOAPIC #0
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 1, version: 0x00040011, at 0xfee00000
cpu1 (AP): apic id: 0, version: 0x00040011, at 0xfee00000
io0 (APIC): apic id: 2, version: 0x00170011, at 0xfec00000
Preloaded elf kernel "kernel" at 0xc02ed000.
Pentium Pro MTRR support enabled
Probing for devices on PCI bus 0:
chip0: <Intel 82443LX host to PCI bridge> rev 0x03 on pci0.0.0
chip1: <Intel 82443LX PCI-PCI bridge> rev 0x03 on pci0.1.0
chip2: <Intel 82371AB PCI to ISA bridge> rev 0x01 on pci0.4.0
ide_pci0: <Intel PIIX4 Bus-master IDE controller> rev 0x01 on pci0.4.1
chip3: <Intel 82371AB Power management controller> rev 0x01 on pci0.4.3
ahc0: <Adaptec aic7880 Ultra SCSI adapter> rev 0x00 int a irq 19 on pci0.6.0
ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x05 int a irq 17 on pci0.11.0
fxp0: Ethernet address 00:a0:c9:da:98:26
Probing for devices on PCI bus 1:
vga0: <Matrox model 051f graphics accelerator> rev 0x00 int a irq 16 on pci1.0.0
Probing for PnP devices:
CSN 1 Vendor ID: CTL00e4 [0xe4008c0e] Serial 0x08de2f0a Comp ID: PNPb02f [0x2fb0d041]
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
psm0 irq 12 on isa
psm0: model MouseMan+, device ID 0
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
sio2 at 0x3e8-0x3ef irq 5 on isa
sio2: type 16550A
sio3 at 0x2e8-0x2ef irq 9 on isa
sio3: type 16550A
ppc0 at 0x378 irq 7 on isa
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/9 bytes threshold
lpt0: <generic printer> on ppbus 0
lpt0: Interrupt-driven port
ppi0: <generic parallel i/o> on ppbus 0
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 flags 0xa0ffa0ff on isa
wdc0: unit 0 (atapi): <TOSHIBA CD-ROM XM-6202B/1108>, removable, accel, ovlap, dma, iordis
acd0: drive speed 5512KB/sec, 256KB cache
acd0: supported read types: CD-R, CD-RW, CD-DA
acd0: Audio: play, 255 volume levels
acd0: Mechanism: ejectable tray
acd0: Medium: no/blank disc inside, unlocked
wdc1 at 0x170-0x177 irq 15 flags 0xa0ffa0ff on isa
wdc1: unit 0 (wd2): <IBM-DJNA-371800>, DMA, 32-bit, multi-block-16
wd2: 17206MB (35239680 sectors), 34960 cyls, 16 heads, 63 S/T, 512 B/S
sb0 at 0x220 irq 10 drq 1 on isa
snd0: <SoundBlaster 16 4.16>
sbxvi0 at drq 5 on isa
snd0: <SoundBlaster 16 4.16>
sbmidi0 not found at 0x330
opl0 at 0x388 on isa
snd0: <Yamaha OPL3 FM>
joy0 at 0x201 on isa
joy0: joystick
joy1 not probed due to I/O address conflict with joy0 at 0x201
vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
npx0 on motherboard
npx0: INT 16 interface
APIC_IO: Testing 8254 interrupt delivery
APIC_IO: routing 8254 via pin 2
Waiting 3 seconds for SCSI devices to settle
SMP: AP CPU #1 Launched!
pass4 at ahc0 bus 0 target 6 lun 0
pass4: <UMAX Astra 600S V1.6> Fixed Scanner SCSI-2 device
pass4: 3.300MB/s transfers
da2 at ahc0 bus 0 target 2 lun 0
da2: <QUANTUM XP34550W LYK8> Fixed Direct Access SCSI-2 device
da2: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing Enabled
da2: 4341MB (8890760 512 byte sectors: 255H 63S/T 553C)
changing root device to da0s2a
cd0 at ahc0 bus 0 target 4 lun 0
cd0: <SONY CD-R CDU926S 1.1e> Removable Worm SCSI-2 device
cd0: 10.000MB/s transfers (10.000MHz, offset 15)
cd0: Attempt to query device size failed: NOT READY, Medium not present
da1 at ahc0 bus 0 target 1 lun 0
da1: <IBM DCAS-34330W S65A> Fixed Direct Access SCSI-2 device
da1: 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
da1: 4134MB (8467200 512 byte sectors: 255H 63S/T 527C)
da0 at ahc0 bus 0 target 0 lun 0
da0: <IBM DCAS-34330W S65A> Fixed Direct Access SCSI-2 device
da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit)
da0: 4134MB (8467200 512 byte sectors: 255H 63S/T 527C)
pid 493 (kpilotDaemon), uid 1000: exited on signal 6
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