>Number:         13048
>Category:       kern
>Synopsis:       access to tape drive causes system crash
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun May 27 02:20:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     
>Release:        2001-05-27
>Organization:
Matthias Scheler                                  http://scheler.de/~matthias/
>Environment:
System: NetBSD lyssa.zhadum.de 1.5V NetBSD 1.5V (LYSSA) #0: Sun May 27 09:38:31 CEST 2001 tron@lyssa.zhadum.de:/src/sys/compile/LYSSA i386
Architecture: i386
Machine: i386

>Description:
With the latest scsipi code the access my DAT streamer is broken again.
Even worse the system crashes completley. It prints out lots and lots of
panic messages faster than one get read and finally reboots before writing
a crash dump. So I have no precise information unfortunately. Here is the
kernel output during startup concerning the SCSI hardware:

ahc0 at pci2 dev 4 function 0
ahc0: interrupting at irq 10
ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
scsibus0 at ahc0: 16 targets, 8 luns per target
ahc1 at pci2 dev 5 function 0
ahc1: interrupting at irq 15
ahc1: aic7880 Wide Channel B, SCSI Id=7, 16/255 SCBs
scsibus1 at ahc1: 16 targets, 8 luns per target
[...]
scsibus0: waiting 2 seconds for devices to settle...
sd0 at scsibus0 target 0 lun 0: <IBM, DNES-318350W, SA30> SCSI3 0/direct fixed
sd0: 17501 MB, 11474 cyl, 10 head, 312 sec, 512 bytes/sect x 35843670 sectors
sd0: sync (50.0ns offset 8), 16-bit (40.000MB/s) transfers, tagged queueing
scsibus1: waiting 2 seconds for devices to settle...
cd0 at scsibus1 target 2 lun 0: <PIONEER, DVD-ROM DVD-303, 1.09> SCSI2 5/cdrom r
emovable
cd0: sync (100.0ns offset 8), 8-bit (10.000MB/s) transfers
cd1 at scsibus1 target 3 lun 0: <WAITEC, WT624, 7.0H> SCSI2 5/cdrom removable
cd1: sync (100.0ns offset 15), 8-bit (10.000MB/s) transfers
st0 at scsibus1 target 4 lun 0: <SONY, SDT-7000, 0300> SCSI2 1/sequential remova
ble
st0: drive empty
st0: sync (100.0ns offset 15), 8-bit (10.000MB/s) transfers

>How-To-Repeat:
dump u0fLB /dev/nrst0 L-20010527 8388608 /

>Fix:
Sorry, but I don't know.

>Release-Note:
>Audit-Trail:
>Unformatted: