timeouts with linux-2.2.13

Elgin Lee ehl at funghi.com
Mon Nov 8 21:29:35 PST 1999


Hmm -- I wonder if the IBM DGHS18V is behaving poorly with the latest
driver.  I just upgraded from Red Hat 5.2 to Red Hat 6.1 and almost
immediately encountered similar hangs.  During the two days that I've
been on 6.1, I've encountered two complete hangs necessitating reboot.

Upon rebooting, I get parity errors and timeouts.  I've had to power
cycle my system and external disk numerous times before I can get a
clean boot.

Curiously, the disk that seems most hung is an IBM DGHS09U.  The last
time that the hang occurred, I know that I was engaged in I/O with
that disk.

Any suggestions on how to debug this problem?

Thanks,
Elgin

--------------------

Here's my configuration:

Attached devices: 
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: QUANTUM  Model: VIKING 4.5 NSE   Rev: 8808
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 08 Lun: 00
  Vendor: IBM      Model: DGHS09U          Rev: 0350
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: SEAGATE  Model: ST32550N         Rev: 0019
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 01 Lun: 00
  Vendor: IBM      Model: DORS-32160       Rev: S82C
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 03 Lun: 00
  Vendor: YAMAHA   Model: CRW4416S         Rev: 1.0g
  Type:   CD-ROM                           ANSI SCSI revision: 02

--------------------

Adaptec AIC7xxx driver version: 5.1.20/3.2.4
Compile Options:
  TCQ Enabled By Default : Disabled
  AIC7XXX_PROC_STATS     : Enabled
  AIC7XXX_RESET_DELAY    : 5

Adapter Configuration:
           SCSI Adapter: Adaptec AHA-294X Ultra SCSI host adapter
                           Ultra Wide Controller
    PCI MMAPed I/O Base: 0xffbea000
 Adapter SEEPROM Config: SEEPROM found and used.
      Adaptec SCSI BIOS: Enabled
                    IRQ: 3
                   SCBs: Active 0, Max Active 1,
                         Allocated 15, HW 16, Page 255
             Interrupts: 70292
      BIOS Control Word: 0x18b6
   Adapter Control Word: 0x005b
   Extended Translation: Enabled
Disconnect Enable Flags: 0xffff
     Ultra Enable Flags: 0x0101
 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 Narrow/Sync transfers at 20.0 MByte/sec, offset 15
  Transinfo settings: current(12/15/0/0), goal(12/15/0/0), user(12/15/1/0)
  Total transfers 594 (594 reads and 0 writes)
             < 2K      2K+     4K+     8K+    16K+    32K+    64K+   128K+
   Reads:     594       0       0       0       0       0       0       0
  Writes:       0       0       0       0       0       0       0       0


(scsi0:0:8:0)
  Device using Wide/Sync transfers at 40.0 MByte/sec, offset 8
  Transinfo settings: current(12/8/1/0), goal(12/8/1/0), user(12/15/1/0)
  Total transfers 69586 (68552 reads and 1034 writes)
             < 2K      2K+     4K+     8K+    16K+    32K+    64K+   128K+
   Reads:   50311      17    7880     922     198    9139      85       0
  Writes:      57      14     105     857       1       0       0       0

--------------------

Adaptec AIC7xxx driver version: 5.1.20/3.2.4
Compile Options:
  TCQ Enabled By Default : Disabled
  AIC7XXX_PROC_STATS     : Enabled
  AIC7XXX_RESET_DELAY    : 5

Adapter Configuration:
           SCSI Adapter: Adaptec AHA-294X Ultra SCSI host adapter
                           Ultra Wide Controller
    PCI MMAPed I/O Base: 0xffbeb000
 Adapter SEEPROM Config: SEEPROM found and used.
      Adaptec SCSI BIOS: Enabled
                    IRQ: 10
                   SCBs: Active 0, Max Active 1,
                         Allocated 15, HW 16, Page 255
             Interrupts: 4929
      BIOS Control Word: 0x18b6
   Adapter Control Word: 0x0059
   Extended Translation: Enabled
Disconnect Enable Flags: 0xffff
     Ultra Enable Flags: 0x0000
 Tag Queue Enable Flags: 0x0000
Ordered Queue Tag Flags: 0x0000
Default Tag Queue Depth: 8
    Tagged Queue By Device array for aic7xxx host instance 1:
      {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 1:
      {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}

Statistics:

(scsi1:0:0:0)
  Device using Narrow/Sync transfers at 10.0 MByte/sec, offset 15
  Transinfo settings: current(25/15/0/0), goal(25/15/0/0), user(25/15/1/0)
  Total transfers 4837 (3895 reads and 942 writes)
             < 2K      2K+     4K+     8K+    16K+    32K+    64K+   128K+
   Reads:    2053     137     625     627     115     264      74       0
  Writes:     585     127      64      47      28      21      70       0


(scsi1:0:1:0)
  Device using Narrow/Sync transfers at 10.0 MByte/sec, offset 15
  Transinfo settings: current(25/15/0/0), goal(25/15/0/0), user(25/15/1/0)
  Total transfers 2 (2 reads and 0 writes)
             < 2K      2K+     4K+     8K+    16K+    32K+    64K+   128K+
   Reads:       2       0       0       0       0       0       0       0
  Writes:       0       0       0       0       0       0       0       0


(scsi1:0:3:0)
  Device using Narrow/Sync transfers at 8.0 MByte/sec, offset 15
  Transinfo settings: current(30/15/0/0), goal(25/15/0/0), user(25/15/1/0)
  Total transfers 0 (0 reads and 0 writes)
             < 2K      2K+     4K+     8K+    16K+    32K+    64K+   128K+
   Reads:       0       0       0       0       0       0       0       0
  Writes:       0       0       0       0       0       0       0       0


--------------------


>>>>>	Uwe Schmeling <uschmeli at csa.de> wrote:
> Hi!
> Sometimes I get the following messages from my SCSI subsystem:
> scsi : aborting command due to timeout : pid 706932, scsi1, channel 0, id
> 0, lun 0 Write (10) 00 00 ec 18 ec 00 00 7a 00
> 
> My configuration:
> linux-2.2.13 Adaptec AIC7xxx driver version: 5.1.20/3.2.4,
> SCSI Adapter: Adaptec AIC-7896/7 Ultra2 SCSI host adapter with 2 channels
> CHAN A:
> 0: IBM DNES-318350W     Rev: S80K
> 1: IBM DNES-318350W     Rev: SA30
> 2: IBM DNES-318350W     Rev: SA30
> CHAN B:
> 0: IBM DGHS18V          Rev: 03C0
> 1: IBM DGHS18V          Rev: 03C0
> Timeout is allways on CHAN B. 
> Any hints?
> 
> Uwe 


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