>Number:         18065
>Category:       kern
>Synopsis:       i386/1.6RC1 umass crash with "Dazzle" SCM eUSB SmartMedia reader
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Aug 25 12:30:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Taavi Burns
>Release:        NetBSD 1.6_RC1 (020820?)
>Organization:
>Environment:
	
	
System: NetBSD hammerfell.dhs.org 1.6_RC1 NetBSD 1.6_RC1 (GENERIC) #0: Tue Aug 20 12:25:05 UTC 2002 autobuild@tgm.daemon.org:/autobuild/i386/OBJ/autobuild/src/sys/arch/i386/compile/GENERIC i386
Architecture: i386
Machine: i386
>Description:
Attach 64MB SmartMedia card to the computer (either insert while running or
have inserted when booting) using "Dazzle" SCM eUSB SmartMedia reader.

Both my cards' size is reported incorrectly (the 8MB card as
244MB, and the 64MB card as 15625MB), but only the 64MB card is
causing the machine to lock up (or just not finish booting).  It
seems that the geometry detection is messed up.  It's interesting
to notice that the bytes/sect and sectors counts do add up to the
correct sizes assuming 512-byte sectors; it's just the total
size, cyl, and head counts that are fubar (and identical
regardless of which card I use).

When I boot with an 8MB SmartMedia card in the device, I get the
following in dmesg:
umass0 at uhub0 port 2 configuration 1 interface 0
umass0: SCM Microsystems Inc. eUSB SmartMedia Reader, rev
1.10/5.04, addr 3
umass0: using SCSI over Bulk-Only
scsibus0 at umass0: 2 targets, 1 luns per target
scsibus0: waiting 2 seconds for devices to settle...
sd0 at scsibus0 target 1 lun 0: <eUSB, SmartMedia, 5.04> SCSI2
0/direct removable
sd0: 244 MB, 131076 cyl, 22 head, 0 sec, 16000 bytes/sect x 16000
sectors
warning: double match for boot device (wd0, sd0)
sd0: no disk label

However, when I boot with my 64MB card, I get this:
umass0 at uhub0 port 2 configuration 1 interface 0
umass0: SCM Microsystems Inc. eUSB SmartMedia Reader, rev 1.10/5.04, addr 3
umass0: using SCSI over Bulk-Only
scsibus0 at umass0: 2 targets, 1 luns per target
scsibus0: waiting 2 seconds for devices to settle...
sd0 at scsibus  0 target 1 lun 0: <eUSB, SmartMedia, 4.05> SCSI 2 0/direct remov
eable
sd0: 15625MB, 131076 cyl, 22 head, 0 sec, 128000 bytes/sect x 128000 sectors
panic: alloc buf: buffer larger than MAXBSIZE requested
Stopped in pid 0 (swapper) at cpu_Debugger+0x4: leave

and I'm dropped to the debugger.

	
>How-To-Repeat:
Insert card.  *BOOM*
	
>Fix:
Any ideas?  Not afraid to go kernel debugging.
	
>Release-Note:
>Audit-Trail:
>Unformatted: