System lockups with Adaptec AIC-7880 Ultra SCSI host adapter

[Bogdan Mutiu]

My name is Bogdan Mutiu and I am from Romania. I have a BIG problem with 
a SCSI adapter, which looks like that:
======================================================================

15 10:45:45 ns kernel: scsi : aborting command due to timeout : pid 
17738, scsi0, channel 0, id 0, lun 0 Write (6) 00 00 43 02 00 
Jan 15 10:45:46 ns kernel: SCSI host 0 abort (pid 17738) timed out - 
resetting
Jan 15 10:45:46 ns kernel: SCSI bus is being reset for host 0 channel 0.
Jan 15 10:45:46 ns kernel: (scsi0:0:0:0) Synchronous at 40.0 Mbyte/sec, 
offset 8.
Jan 15 10:46:24 ns kernel: scsi : aborting command due to timeout : pid 
17756, scsi0, channel 0, id 0, lun 0 Write (10) 00 00 2c 9d 22 00 00 02 
00 
Jan 15 10:46:24 ns kernel: scsi : aborting command due to timeout : pid 
17757, scsi0, channel 0, id 0, lun 0 Write (6) 02 c0 53 02 00 
Jan 15 10:46:24 ns kernel: scsi : aborting command due to timeout : pid 
17758, scsi0, channel 0, id 0, lun 0 Read (6) 03 20 3d 02 00 
Jan 15 10:46:26 ns kernel: SCSI host 0 abort (pid 17756) timed out - 
resetting
Jan 15 10:46:26 ns kernel: SCSI bus is being reset for host 0 channel 0.
Jan 15 10:46:26 ns kernel: (scsi0:0:0:0) Synchronous at 40.0 Mbyte/sec, 
....
=====================================================================

This is /proc/scsi/aic7xxx/0:

=====================================================================
Adaptec AIC7xxx driver version: 5.1.2/3.2.4
Compile Options:
  AIC7XXX_RESET_DELAY    : 15
  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 AIC-7880 Ultra SCSI host adapter
                           Ultra Wide Controller
    PCI MMAPed I/O Base: 0xea000000
 Adapter SEEPROM Config: SEEPROM found and used.
      Adaptec SCSI BIOS: Enabled
                    IRQ: 9
                   SCBs: Active 0, Max Active 2,
                         Allocated 15, HW 16, Page 255
             Interrupts: 18133
      BIOS Control Word: 0x18b5
   Adapter Control Word: 0x007e
   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: 8
    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
    Device Negotiation Settings
        Period Offset Bus Width
User       012    008        1
Goal       012    008        1
Current    012    008        1
    Total transfers 17876 (15785 read;2091 written)
 	blks(512) rd=406609; blks(512) wr=12978


(scsi0:0:3:0)
  Device using Narrow/Sync transfers at
  4.0 MByte/sec, offset 15
    Device Negotiation Settings
        Period Offset Bus Width
User       050    015        0
Goal       050    015        0
Current    061    015        0
    Total transfers 7 (7 read;0 written)
      blks(512) rd=57; blks(512) wr=0
======================================================================

and dmesg SCSI portion:

======================================================================

(scsi0) <Adaptec AIC-7880 Ultra SCSI host adapter> found at PCI 14/0
(scsi0) Wide Channel, SCSI ID=7, 16/255 SCBs
(scsi0) Downloading sequencer code... 419 instructions downloaded
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.2/3.2.4
       <Adaptec AIC-7880 Ultra SCSI host adapter>
scsi : 1 host.
  Vendor: FUJITSU   Model: MAB3045SP         Rev: 0107
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
  Vendor: NEC       Model: CD-ROM DRIVE:464  Rev: 1.04
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 3, lun 0
(scsi0:0:0:0) Synchronous at 40.0 Mbyte/sec, offset 8.
====================================================================

Thanks for any valuable information,

Bogdan

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