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Re: sense key error?

daemon@ATHENA.MIT.EDU (Leonard N. Zubkoff)
Sun Mar 2 12:05:34 1997

Date: 	Sun, 2 Mar 1997 08:58:03 -0800
From: "Leonard N. Zubkoff" <lnz@dandelion.com>
To: tel1dvw@is.ups.com
CC: linux-scsi@vger.rutgers.edu, linux-kernel@vger.rutgers.edu
In-reply-to: <Pine.GSO.3.93.970302045536.10475C-100000@butthead> (message from
	dave on Sun, 2 Mar 1997 04:57:09 -0500 (EST))

  Date: 	Sun, 2 Mar 1997 04:57:09 -0500 (EST)
  From: dave <tel1dvw@is.ups.com>

  Hi all.  During excessive disk activity, I received the following error
  from 1.2.26, libc 5.2.18.  I was having some real problems with my 2940
  and later libc versions.  (at least I think that was it..)  The kernel
  reported these errors, hence linux-kernel, but aren't they just scsi
  driver problems?

  Mar  2 04:21:28 discserv kernel: Additional sense indicates Track
  following error
  Mar  2 04:21:28 discserv kernel: CD-ROM I/O error: dev 0b:00, sector 112
  Mar  2 04:22:01 discserv kernel: scsi : aborting command due to timeout :
  pid 425870, scsi0, channel 0, id 6, lun 0 Read (6) 00 01 44 01 00
  Mar  2 04:22:01 discserv kernel: aic7xxx: (abort) Aborting scb 2, TCL
  6/0/0
  Mar  2 04:22:01 discserv kernel: scsi0: MEDIUM ERROR on channel 0, id 6,
  lun 0,CDB: Read (6) 00 01 44 01 00
  Mar  2 04:22:01 discserv kernel: Current error sr0b:00: sense key Medium
  Error
  Mar  2 04:22:01 discserv kernel: Additional sense indicates No seek
  complete

A SCSI MEDIUM ERROR means that the target device could not read the physical
media for some reason.  There's no way a MEDIUM ERROR is a driver problem.
It's also not unheard of for a CD-ROM to have problems being read, and read
just fine even a short while later.

		Leonard

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