Date: Fri, 11 Jun 1999 10:36:21 -0600 From: Steve Bishop <steveb@iserver.com> To: freebsd-scsi@FreeBSD.ORG Subject: scsi probe at boot time Message-ID: <37613B04.958D33C4@iserver.com>
next in thread | raw e-mail | index | archive | help
Hello,
I am having trouble using a Spectralogic 10000 SCSI tape changer. The tape changer locks
up during the FreeBSD boot sequence. It locks up right when FreeBSD prints the message:
"Waiting 10 seconds for SCSI devices to settle"
The changer does not respond anymore after this, and only the two tape drives in the changer
are recognized (SONY SDX-500C). This is right when FreeBSD probes the SCSI devices, right?
I also used to have the same problem occur earlier in the boot sequence, before the OS
even started loading. This was when the SCSI host adapter did it's own probing of the bus. So,
I went into the SCSI BIOS, and disabled the "probe-at-boot" function.
There is a workaround that I have used successfully. I don't turn the changer on until the server or FreeBSD
computer has booted completely. Once that is finished, I issue the following command:
"camcontrol rescan bus 0"
This successfully recognizes everything and enables or configures the changer for use. The changer
does not lock up. How come I can do a rescan and everything is OK, but the SCSI probe during boot
causes the tape changer to lock up?
Does anyone know a solution or better (i.e. permanent) workaround than the one I currently use?
thanks,
Steve Bishop
Sysadmin/Developer
Verio Web Services, Inc.
tapehound# camcontrol devlist -v
scbus-1 on xpt-193593352 bus 0:
< > at scbus-1 target -1 lun -1 (xpt0)
scbus0 on ahc0 bus 0:
<SONY SDX-500C t1c4> at scbus0 target 2 lun 0 (pass0,sa0)
<SONY SDX-500C t1c4> at scbus0 target 3 lun 0 (pass1,sa1)
<SPECTRA 10000 0500> at scbus0 target 6 lun 0 (pass2,ch0)
< > at scbus0 target -1 lun -1 ()
scbus1 on ahc1 bus 0:
<SEAGATE ST39102LW 0006> at scbus1 target 0 lun 0 (pass3,da0)
<SEAGATE ST39102LW 0006> at scbus1 target 2 lun 0 (pass4,da1)
< > at scbus1 target -1 lun -1 ()
scbus2 on ahc2 bus 0:
< > at scbus2 target -1 lun -1 ()
tapehound# dmesg
Copyright (c) 1992-1999 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.1-RELEASE #1: Wed May 26 12:18:05 MDT 1999
root@tapehound.orem.iserver.com:/usr/src/sys/compile/TAPEHOUND
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium II/Xeon/Celeron (350.80-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x652 Stepping=2
Features=0x183fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,<b24>>
real memory = 67043328 (65472K bytes)
avail memory = 62074880 (60620K bytes)
Bad DMI table checksum!
Preloaded elf kernel "kernel" at 0xf02ff000.
Probing for devices on PCI bus 0:
chip0: <Intel 82443BX host to PCI bridge> rev 0x03 on pci0.0.0
chip1: <Intel 82443BX host to AGP bridge> rev 0x03 on pci0.1.0
chip2: <Intel 82371AB PCI to ISA bridge> rev 0x02 on pci0.7.0
chip3: <Intel 82371AB Power management controller> rev 0x02 on pci0.7.3
fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x08 int a irq 11 on pci0.15.0
fxp0: Ethernet address 00:90:27:62:d1:b7
vga0: <S3 ViRGE DX/GX graphics accelerator> rev 0x01 int a irq 10 on pci0.16.0
ahc0: <Adaptec 2940 Ultra SCSI adapter> rev 0x01 int a irq 12 on pci0.19.0
ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
ahc1: <Adaptec aic7895 Ultra SCSI adapter> rev 0x04 int a irq 12 on pci0.20.0
ahc1: aic7895 Wide Channel A, SCSI Id=7, 255 SCBs
ahc2: <Adaptec aic7895 Ultra SCSI adapter> rev 0x04 int b irq 11 on pci0.20.1
ahc2: aic7895 Wide Channel B, SCSI Id=7, 255 SCBs
Probing for devices on PCI bus 1:
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
ppc0 at 0x378 irq 7 on isa
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
nlpt0: <generic printer> on ppbus 0
nlpt0: Interrupt-driven port
ppi0: <generic parallel i/o> on ppbus 0
plip0: <PLIP network interface> on ppbus 0
vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
npx0 on motherboard
npx0: INT 16 interface
Waiting 10 seconds for SCSI devices to settle
----------------------------------------------------------------------------
sa0 at ahc0 bus 0 target 2 lun 0
sa0: <SONY SDX-500C t1c4> Removable Sequential Access SCSI-2 device
sa0: 40.0MB/s transfers (20.0MHz, offset 8, 16bit)
sa1 at ahc0 bus 0 target 3 lun 0
sa1: <SONY SDX-500C t1c4> Removable Sequential Access SCSI-2 device
sa1: 40.0MB/s transfers (20.0MHz, offset 8, 16bit)
da0 at ahc1 bus 0 target 0 lun 0
da0: <SEAGATE ST39102LW 0006> Fixed Direct Access SCSI-2 device
da0: 20.0MB/s transfers (10.0MHz, offset 8, 16bit), Tagged Queueing Enabled
da0: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C)
da1 at ahc1 bus 0 target 2 lun 0
da1: <SEAGATE ST39102LW 0006> Fixed Direct Access SCSI-2 device
da1: 20.0MB/s transfers (10.0MHz, offset 8, 16bit), Tagged Queueing Enabled
da1: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C)
ch0 at ahc0 bus 0 target 6 lun 0
ch0: <SPECTRA 10000 0500> Removable Changer SCSI-2 device
ch0: 3.300MB/s transfers
ch0: 42 slots, 2 drives, 1 picker, 1 portal
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-scsi" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?37613B04.958D33C4>