Subject: Re: SCSI timeouts too small for tapes
To: VaX#n8 <>
From: Michael VanLoon <>
List: tech-kern
Date: 01/02/1999 04:37:53
I know I regularly have problems like this with both Seagate/Archive
DDS-2 and DDS-3 drives.  I have similar but different problems when
trying to use these drives with NetBSD on an ahc controller.

-----Original Message-----
From: Matthew Jacob <>
Date: Tuesday, December 15, 1998 8:16 PM

>What tape drive?

>On Tue, 15 Dec 1998, VaX#n8 wrote:
>> When performing erase commands, I have noticed that the command exits
>> two minutes into the erasing, no console logging is done, and then
>when the
>> drive actually completes, the NCR controller gives a SCSI phase error
>> (CCB 0xdeadbeef already dequeued).  Then the bus locks up.
>> I assume that this is because of a hard-coded timeout.
>> Is this a correct analysis?
>> If so, where is the code located or how do I adjust it?
>> At first I thought this was an electrical problem.
>> It has caused me headaches for weeks.
>> Similarly, if an offline command causes a rewind and then an eject
>> if activity occurs on the bus between the rewind and eject, it
>> locks up.