Messages in this thread | | | Date | Sat, 19 Apr 1997 12:24:22 -0700 | From | Don Fisher <> | Subject | System han on SCSI read |
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Hi
I have a NEC6030 laptop the lives in a NEC DockingStation 6000. The docking station contains a SCSI controller that performed well for months. Then I did not use it for a while (left it idle with no mounted devices). It got angry at being ignored and now hangs my LINUX system:-)
The hardware is seen as an aic7xxx on boot as shown on the boot listing below:
aic7xxx: BurstLen = 4 DWDs, Latency Timer = 64 PCLKS aic7xxx: AIC-7850 Rev B. aic7xxx: devconfig = 0x100. aic7xxx: Reading SEEPROM... aic7xxx: Unable to read SEEPROM; using leftover BIOS values. aic7xxx: Extended translation disabled. aic7xxx: Memory check yields 3 SCBs, paging not enabled. AIC-7850 (PCI-bus), I/O 0xe800, Mem 0xfcffe000: irq 11 bus release time 40 bclks data fifo threshold 100 SCSI CHANNEL A: scsi id 7 scsi selection timeout 256 ms scsi bus reset at power-on enabled scsi bus parity enabled aic7xxx: Downloading sequencer code...done. aic7xxx : Host adapter BIOS disabled. Using default SCSI device parameters. aic7xxx: Resetting the SCSI bus...done. scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 4.0/3.2/4.0 scsi : 1 host. scsi0: Scanning channel A for devices. scsi0: Target 0, channel A, now synchronous at 10.0MHz, offset 15. Vendor: SEAGATE Model: ST410800N Rev: 0016 Type: Direct-Access ANSI SCSI revision: 02 Detected scsi disk sda at scsi0, channel 0, id 0, lun 0 scsi0: Target 1, channel A, now synchronous at 4.0MHz, offset 15. Vendor: TOSHIBA Model: CD-ROM XM-5201TA Rev: 3014 Type: CD-ROM ANSI SCSI revision: 02 Detected scsi CD-ROM sr0 at scsi0, channel 0, id 1, lun 0 scsi0: Target 5, channel A, now synchronous at 5.0MHz, offset 11. Vendor: EXABYTE Model: EXB-85058SQANXR1 Rev: 0781 Type: Sequential-Access ANSI SCSI revision: 02 Detected scsi tape st0 at scsi0, channel 0, id 5, lun 0 Vendor: IOMEGA Model: ZIP 100 Rev: N*32 Type: Direct-Access ANSI SCSI revision: 02 Detected scsi removable disk sdb at scsi0, channel 0, id 6, lun 0 scsi : detected 1 SCSI tape 1 SCSI cdrom 2 SCSI disks total. SCSI device sda: hdwr sector= 512 bytes. Sectors= 17755614 [8669 MB] [8.7 GB] SCSI device sdb: hdwr sector= 512 bytes. Sectors= 196608 [96 MB] [0.1 GB] sdb: Write Protect is off
If I look in /proc/scsi/scsi I find:
Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: SEAGATE Model: ST410800N Rev: 0016 Type: Direct-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 01 Lun: 00 Vendor: TOSHIBA Model: CD-ROM XM-5201TA Rev: 3014 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 05 Lun: 00 Vendor: EXABYTE Model: EXB-85058SQANXR1 Rev: 0781 Type: Sequential-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 06 Lun: 00 Vendor: IOMEGA Model: ZIP 100 Rev: N*32 Type: Direct-Access ANSI SCSI revision: 02
So it appears that the hardware is fine. And the W96 system can access the hardware without error. But whin I try and mount my ZIP SCSI device under LINUX the system hangs after printing the following to the console:
No active SCB for reconnecting target 6, channel A - Issuing ABORT. SAVED_TCL(0x60).
Kernel Panic: SCSI0 Target 6, channel A, did not send an IDENTIFY message. SAVED_TCL(0x60).
I don't know what a SCB is, but the boot message above says the memory check found 3:-( I am running 2.1.29, but have tried 1.1.35 without seeing any difference. I am running RedHat 4.1 and, have upgraded many packages since the last time the SCSI was used/operational. Any clues?
I am always troubled by interrupts, or lack of same. To my knowledge, my interrupts are mapped as follows (how does one tell for sure?):
0 sys timer 1 keyboard 2 prog int controller 3 comm 2 4 comm 1 5 sound blaster (part of docking station) 6 floppy 7 printer 8 real time clock 9 Matrox Millinium board??? (W95 says it lives here) 10 3com509 (not in plug and play mode) 11 SCSI 12 ps2 mouse 13 Numeric Data Processor 14 pci/ide 0 15 pci/id1 1
I also don't know how to determine which of these devices are edge triggered and have drivers smart enough to share interrupts.
Thanks in advance for any help. don
-- ******************************************************************* * Don Fisher dfisher@as.arizona.edu * * MMT Observatory (520)621-7647 * * University of Arizona * * Tucson, AZ 85721 * *******************************************************************
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