From owner-freebsd-scsi  Sun Jul  1  4:58:11 2001
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From: Norman.Czarczinski@t-online.de (Norman Czarczinski)
To: FreeBSD-SCSI@freebsd.org
Subject: Trouble with SCSI Streamer
Date: Sun, 1 Jul 2001 13:57:42 +0200
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Hi,

I have a Wangtek 5525ES streamer on an Adaptec 2940UW host and run 
FreeBSD 4.3-stable:
ahc0: <Adaptec 2940 Ultra SCSI adapter> port 0xd800-0xd8ff mem 
0xe4000000-0xe4000fff irq 11 at device 12.0 on pci0
aic7880: Wide Channel A, SCSI Id=7, 16/255 SCBs
sa0 at ahc0 bus 0 target 5 lun 0
sa0: <WANGTEK 5525ES SCSI REV1 6F6> Removable Sequential Access SCSI-CCS 
device sa0: 3.300MB/s transfers

Writing the first tape works fine. But after I inserted a new tape, I get a 
data overrun error:
Jun 27 20:02:03 pentium /kernel: (sa0:ahc0:0:5:0): WRITE(06). CDB: a 1 0 0 14 
0 
Jun 27 20:02:03 pentium /kernel: (sa0:ahc0:0:5:0): ahc_action
Jun 27 20:02:03 pentium /kernel: (sa0:ahc0:0:5:0): data overrun detected in 
Data-out phase.  Tag == 0x4.
Jun 27 20:02:03 pentium /kernel: (sa0:ahc0:0:5:0): Have seen Data Phase.  
Length = 10240.  NumSGs = 3.
Jun 27 20:02:03 pentium /kernel: sg[0] - Addr 0x1fd7000 : Length 4096
Jun 27 20:02:03 pentium /kernel: sg[1] - Addr 0x1eb8000 : Length 4096
Jun 27 20:02:03 pentium /kernel: sg[2] - Addr 0x3af9000 : Length 2048
Jun 27 20:02:03 pentium /kernel: (sa0:ahc0:0:5:0): ahc_done - scb 4
Jun 27 20:02:03 pentium /kernel: (sa0:ahc0:0:5:0): xpt_done
Jun 27 20:02:03 pentium /kernel: (sa0:ahc0:0:5:0): camisr(sa0:ahc0:0:5:0): 
Cam Status 0x12
Jun 27 20:02:03 pentium /kernel: (sa0:ahc0:0:5:0): xpt_setup_ccb
Jun 27 20:02:03 pentium /kernel: (sa0:ahc0:0:5:0): xpt_action
Jun 27 20:02:03 pentium /kernel: (sa0:ahc0:0:5:0): error 5 resid 10240 count 
10240

Then a reboot is needed to use the streamer normaly. (camcontrol reset 
doesn't work)

I have this problem with dump and afio. When I start them again on the 
rewinded tape, they work. But a restart after a short tape-eject fails. Only 
tar let me change the tape without problems. 

Any hints?

Bye
  Norman

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