Date: Fri, 3 Nov 1995 21:49:16 -0800 (PST) From: Michael Enkelis <michaele@mxim.com> To: current@freebsd.org Subject: SCSI Tape devices Message-ID: <Pine.SUN.3.90a.951103213205.4939A-100000@macs>
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I just found what might be a bug in the scsi driver in -stable i sup'ed last
night.
I can only do ONE operation to my tape drive. After the operation completes,
it ignores all other commands until a reboot. Normaly inserting another tape
will cause the drive to find BOT marker, this does not even happen.
My hardware (from dmesg):
FreeBSD 2.1-STABLE #0: Fri Nov 3 21:21:09 PST 1995
root@:/usr/src/sys/compile/ENKY
CPU: i486DX (486-class CPU)
real memory = 33554432 (32768K bytes)
avail memory = 30937088 (30212K bytes)
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
sio0 at 0x2a0-0x2a7 flags 0x301 on isa
sio0: type 16550A (multiport)
sio1 at 0x2a8-0x2af flags 0x301 on isa
sio1: type 16550A (multiport)
sio2 at 0x2b0-0x2b7 flags 0x301 on isa
sio2: type 16450 (multiport)
sio3 at 0x2b8-0x2bf irq 4 flags 0x301 on isa
sio3: type 16450 (multiport master)
mse0 at 0x23c irq 3 on isa
pca0 on motherboard
pca0: PC speaker audio driver
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 72065B
fd0: 1.2MB 5.25in
fd1: 1.44MB 3.5in
ahc1: 274x Twin Channel, A SCSI Id=7, B SCSI Id=7, aic7770 <= Rev C, 4 SCBs
ahc1 at 0x5000-0x50ff irq 11 on eisa slot 5
(ahc1:0:0): "QUANTUM P40S 940-40-94xx A.2" type 0 fixed SCSI 1
sd0(ahc1:0:0): Direct-Access 40MB (82029 512 byte sectors)
(ahc1:1:0): "QUANTUM PD1050iS 3100" type 0 fixed SCSI 2
sd1(ahc1:1:0): Direct-Access 1003MB (2055096 512 byte sectors)
(ahc1:5:0): "TANDBERG TDC 3600 -04." type 1 removable SCSI 1
st0(ahc1:5:0): Sequential-Access st0: Tandberg tdc3600 is a known rogue
density code 0x10, 512-byte blocks, write-enabled
(ahc1:6:0): "TOSHIBA CD-ROM DRIVE:XM 3332" type 5 removable SCSI 1
cd0(ahc1:6:0): CD-ROM
cd0(ahc1:6:0): NOT READY asc:4,0
cd0(ahc1:6:0): Logical unit not ready, cause not reportable
can't get the size
1 3C5x9 board(s) on EISA found at 0x8000
ep0 at 0x8000-0x800f irq 10 on eisa slot 8
ep0: aui/bnc[*BNC*] address 00:20:af:2c:5e:4b irq 10
npx0 on motherboard
npx0: INT 16 interface
sb0 at 0x220 irq 7 drq 1 on isa
sb0: <SoundBlaster Pro 3.2>
opl0 at 0x388 on isa
opl0: <Yamaha OPL-3 FM>
--------------------------
The tape drive and cdrom are on the internal SCSI bus. My disk
drives are on the external SCSI bus.
The cdrom works fine, and until last month i beleve that the tape also
worked ok.
When i install a tape drive (tandberg 3820) on the external bus, it is
probed as st0 and the tape drive (tandberg 3660) on the internal SCSI bus
probes as st1. Now st0 DOES work, but st1 still only allows one operation.
_ _ _ __ michaele@mxim.com
' ) ) ) / /) / ` / /) Michael Enkelis
/ / / o _. /_ __. _ // /-- __ /_ _ // o _ (503) 641 - 3737 x2245
/ ' (_(_(__/ /_(_(_(<_(/_ (___, /) )_/ <_(<_(/_(_/_)_
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