Strange lockups with an IBM

[Rob Browning]

I recently replaced one of my drives with DDRS-39130W and for some
reason, whenever I'm running amanda backups (even when it's just a
flush to tape), I get scsi lockups.  Watchdog rebooted the system just
as I noticed the messages, so I couldn't record them, but I've
disabled watchdog so that I can write them down next time.

A while back you were able to help me with a problem with a different
IBM drive (that one had the dque bit set wrong), so I thought I'd see
if there's a known problem with this one.

I'm happy to RTFM if I know which M.  (And yes, I noticed that I don't
have tagged queueing enabled.  I'll have to look in to that.  I didn't
realize I had to do anything special to turn it on.)

Thanks

Adaptec AIC7xxx driver version: 5.1.10/3.2.4
Compile Options:
  AIC7XXX_RESET_DELAY    : 5
  AIC7XXX_TAGGED_QUEUEING: Adapter Support Enabled
                             Check below to see which
                             devices use tagged queueing
  AIC7XXX_PAGE_ENABLE    : Enabled (This is no longer an option)
  AIC7XXX_PROC_STATS     : Disabled

Adapter Configuration:
           SCSI Adapter: Adaptec AHA-294X Ultra SCSI host adapter
                           Ultra Wide Controller
    PCI MMAPed I/O Base: 0xcb000000
 Adapter SEEPROM Config: SEEPROM found and used.
      Adaptec SCSI BIOS: Enabled
                    IRQ: 10
                   SCBs: Active 0, Max Active 2,
                         Allocated 15, HW 16, Page 255
             Interrupts: 11199
      BIOS Control Word: 0x18b6
   Adapter Control Word: 0x005b
   Extended Translation: Enabled
Disconnect Enable Flags: 0xffff
     Ultra Enable Flags: 0x0001
 Tag Queue Enable Flags: 0x0000
Ordered Queue Tag Flags: 0x0000
Default Tag Queue Depth: 24
    Tagged Queue By Device array for aic7xxx host instance 0:
      {255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255}
    Actual queue depth per device for aic7xxx host instance 0:
      {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}

Statistics:

(scsi0:0:0:0)
  Device using Wide/Sync transfers at 40.0 MByte/sec, offset 8
  Transinfo settings: current(12/8/1), goal(12/8/1), user(12/8/1)
  Total transfers 9793 (7035 reads and 2758 writes)


(scsi0:0:1:0)
  Device using Wide/Sync transfers at 20.0 MByte/sec, offset 8
  Transinfo settings: current(25/8/1), goal(12/8/1), user(12/8/1)
  Total transfers 1084 (1082 reads and 2 writes)


(scsi0:0:2:0)
  Device using Narrow/Sync transfers at 10.0 MByte/sec, offset 8
  Transinfo settings: current(25/8/0), goal(12/15/0), user(12/8/1)
  Total transfers 1 (1 reads and 0 writes)


(scsi0:0:3:0)
  Device using Narrow/Sync transfers at 10.0 MByte/sec, offset 8
  Transinfo settings: current(25/8/0), goal(12/15/0), user(12/8/1)
  Total transfers 0 (0 reads and 0 writes)


(scsi0:0:4:0)
  Device using Narrow/Async transfers.
  Transinfo settings: current(0/0/0), goal(0/0/0), user(12/8/1)
  Total transfers 4 (4 reads and 0 writes)

Attached devices: 
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: IBM      Model: DDRS-39130W      Rev: S92A
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
  Vendor: IBM OEM  Model: DFHSS4W          Rev: 4B4B
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 02 Lun: 00
  Vendor: HP       Model: C1533A           Rev: 9503
  Type:   Sequential-Access                ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 03 Lun: 00
  Vendor: MATSHITA Model: CD-ROM CR-8012   Rev: 1.0f
  Type:   CD-ROM                           ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 04 Lun: 00
  Vendor: IOMEGA   Model: ZIP 100          Rev: E.08
  Type:   Direct-Access                    ANSI SCSI revision: 02

-- 
Rob Browning <rlb at cs.utexas.edu> PGP=E80E0D04F521A094 532B97F5D64E3930


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