Error from aic7xxx

[Doug Ledford]

tmuller at agora.rdrop.com wrote:
> 
> Hi all,
> 
> Well, I've got some good news and some bad news.  The good news is that this
> seems to have cleared up once I put the jumper on the "Disable Target Initiated
> Syncronous/Wide Negotiation".  So now the bad news.  I still see one of
> these errors during bootup, but only one.  Now dmesg is:
> 
> (scsi0) <Adaptec AIC-7895 Ultra SCSI host adapter> found at PCI 9/0
> (scsi0) Wide Channel A, SCSI ID=7, 32/255 SCBs
> (scsi0) Downloading sequencer code... 374 instructions downloaded
> (scsi1) <Adaptec AIC-7895 Ultra SCSI host adapter> found at PCI 9/1
> (scsi1) Wide Channel B, SCSI ID=7, 32/255 SCBs
> (scsi1) Downloading sequencer code... 374 instructions downloaded
> scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.19/3.2.4
>        <Adaptec AIC-7895 Ultra SCSI host adapter>
> scsi1 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.19/3.2.4
>        <Adaptec AIC-7895 Ultra SCSI host adapter>
> scsi : 2 hosts.
> (scsi0:0:0:0) Synchronous at 20.0 Mbyte/sec, offset 8.
>   Vendor: IBM       Model: DORS-32160W   !#  Rev: WA3E
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
> (scsi0:0:1:0) Synchronous at 40.0 Mbyte/sec, offset 8.
>   Vendor: IBM       Model: DGHS09U           Rev: 0350
>   Type:   Direct-Access                      ANSI SCSI revision: 03
> Detected scsi disk sdb at scsi0, channel 0, id 1, lun 0
> (scsi0:0:2:0) Synchronous at 40.0 Mbyte/sec, offset 8.
>   Vendor: MICROP    Model: 4341WS            Rev: x43h
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Detected scsi disk sdc at scsi0, channel 0, id 2, lun 0
> (scsi0:0:3:0) Synchronous at 40.0 Mbyte/sec, offset 8.
> (scsi0:0:3:0) Data overrun detected in Data-In phase, tag 1;
>   Have seen Data Phase. Length=255, NumSGs=1.
>        sg[0] - Addr 0x7fe86e0 : Length 255
>   Vendor: WDIGTL    Model: ENTERPRISE        Rev: 1.91
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Detected scsi disk sdd at scsi0, channel 0, id 3, lun 0
> (scsi1:0:4:0) Synchronous at 10.0 Mbyte/sec, offset 15.
>   Vendor: PLEXTOR   Model: CD-ROM PX-20TS    Rev: 1.00
>   Type:   CD-ROM                             ANSI SCSI revision: 02
> Detected scsi CD-ROM sr0 at scsi1, channel 0, id 4, lun 0
> (scsi1:0:6:0) Synchronous at 10.0 Mbyte/sec, offset 15.
>   Vendor: SAF       Model: CD-RW226          Rev: 1.40
>   Type:   CD-ROM                             ANSI SCSI revision: 02
> Detected scsi CD-ROM sr1 at scsi1, channel 0, id 6, lun 0
> scsi : detected 2 SCSI cdroms 4 SCSI disks total.
> Uniform CDROM driver Revision: 2.55
> sr1: scsi3-mmc drive: 0x/0x caddy
> SCSI device sda: hdwr sector= 512 bytes. Sectors= 4226725 [2063 MB] [2.1 GB]
> SCSI device sdb: hdwr sector= 512 bytes. Sectors= 17916240 [8748 MB] [8.7 GB]
> SCSI device sdc: hdwr sector= 512 bytes. Sectors= 8070564 [3940 MB] [3.9 GB]
> SCSI device sdd: hdwr sector= 512 bytes. Sectors= 8515173 [4157 MB] [4.2 GB]
> 
> Ok, what do you think?  Is it going to be safe to use?  I can't believe that
> the messages are damaging since just by turning off the target negotiations
> all but removed them.  Comments Doug?

Yeah, I still want to find one of those drives around some where since that
particular model of drive tends to cause these errors when damn near nothing
else does.  If I had one of them, then I'd get that issue solved.  Care to let
me know where you found that one and if they have any more?

> Btw, setting the tagged queuing to none does not make a different in the error
> showing up.  I tried it via lilo and also by disabling it in the kernel build.  The same error shows up in both situations.
> 
> --
> Thanks,
> Troy
> 
> ----------------------------------------------------------------
> email: tmuller at agora.rdrop.com
> PGP 5.0 key: hkp://pgp.ai.mit.edu
> helpful suggestion:
> perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
> ----------------------------------------------------------------

-- 
  Doug Ledford   <dledford at redhat.com>
   Opinions expressed are my own, but
      they should be everybody's.


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