kern/51585: detaching cardbus adapter causing panic

[venture37%geeklan.co.uk@localhost]

>Number:         51585
>Category:       kern
>Synopsis:       detaching cardbus adapter causing panic
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Oct 29 20:25:00 +0000 2016
>Originator:     Sevan Janiyan
>Release:        NetBSD-head
>Organization:
>Environment:
>Description:
Card is a PSION DACOM multi-function adapter.
modem/ethernet

Kernel reports:
Psion, 10-100Mb MF CardBus, 400062-01C, 123456789abc (manufacturer 0x16c, product 0x21) Standard Microsystems 83C175 ("EPIC/100") Fast Ethernet (ethernet network, revision 0x01) at cardbus0 function 0 not configured
com3 at cardbus0 function 1: there are more than one possible base
com3: address for this device, please report the following information
com3: vendor 0x10b8 product 0x6
com3: base address 10 type i/o size 8
com3: base address 14 type mem size c

Removing the card causes the system to panic:
uvm_fault(0xc0ff0d40, 0, 2) -> 0xe
fatal page fault in supervisor mode
trap type 6 code 2 eip c097d39e cs 8 eflags 10296 cr2 19c ilevel 8 esp c1026d10
curlwp 0xc3c71d40 pid 0 lid 32 lowest kstack 0xdb6df2c0
kernel: supervisor trap page fault, code=0
stopped in pid 0.32 (system) at netbsd:tty_free+0x2b: movl $0,19c(%eax)
>How-To-Repeat:
Attach card to system then eject.
>Fix: