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Date:      Tue, 21 Dec 1999 11:36:30 -0800 (PST)
From:      rjbubon@bigi.com
To:        freebsd-gnats-submit@freebsd.org
Subject:   kern/15611: EIDE Large Disk Support, Newfs problem, File system corruption,IBM-DPTA-353750
Message-ID:  <19991221193630.A786B154E2@hub.freebsd.org>

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>Number:         15611
>Category:       kern
>Synopsis:       EIDE Large Disk Support, Newfs problem, File system corruption,IBM-DPTA-353750
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Dec 21 11:40:01 PST 1999
>Closed-Date:
>Last-Modified:
>Originator:     Robert Bubon
>Release:        FreeBSD 3.3
>Organization:
>Environment:
FreeBSD nomad.bigi.com 3.3-RELEASE FreeBSD 3.3-RELEASE #0: Fri Oct  8 16:00:06 MDT 1999     root@nomad.bigi.com:/usr/src/sys/compile/NOMAD  i386
>Description:
1) Using whole disk as one filesystems. Newfs exits with the following:

 72548384, 72613920, 72679456, 72744992, 72810528, 72876064, 72941600, 73007136, 73072672, 73138208,
 73203744,
write error: 0
newfs: wtfs: Read-only file system

I have been fighting this problem for a while. I even RMA'd the drive.
With first drive the newfs would panic the system. I have ran IBM's
diagnostics, low-level formated and verified the drive.

If I split the drive down the middle, 2 partitions, Strange things happen.
I can load the first partition down with data. If I start writing to the 2nd
partition, I corrupt the first. It's like the sector indexing in the OS
is broke at some large number. Maybe an overflow.

BTW I have a IBM 16.5 Gig Drive on the same system, It works fine.

nomad# disklabel -r /dev/wd1
# /dev/wd1:
type: ESDI
disk: wd1s1
label: 
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 80
sectors/cylinder: 5040
cylinders: 14536
sectors/unit: 73261440
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0           # milliseconds
track-to-track seek: 0  # milliseconds
drivedata: 0 

8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  c: 73261440        0    unused        0     0         # (Cyl.    0 - 14535)
  e: 36630720        0    4.2BSD     1024  8192    16   # (Cyl.    0 - 7267)
  f: 36630720 36630720    4.2BSD     1024  8192    16   # (Cyl. 7268 - 14535)



>How-To-Repeat:
Newfs a really large eide drive
>Fix:


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


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