Panic using an USB gps with uplcom

[Mathieu Arnold]

Hi,

Using a RELENG_6_0 from this morning, I got the panic message :

Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x24
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0xc061de49
stack pointer           = 0x28:0xcad86afc
frame pointer           = 0x28:0xcad86b2c
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 1097 (ntpd)
trap number             = 12
panic: page fault
Uptime: 11m10s
Dumping 190 MB (2 chunks)

the backtrace is there :
http://p.mat.cc/x

and the dmesg is there :
http://p.mat.cc/z

the GPS USB device is seen on 6.0 as :
ucom0: vendor 0x067b product 0x2303, rev 1.10/2.02, addr 2
on 5.4 it was :
ucom0: Prolific Technology PL2303 Serial adapter (ATEN/IOGEAR UC232A), rev
1.10/2.02, addr 2

I've saved the kernel.debug and vmcore.0 if someone is interested, and I'd be
willing to try patches :-)

-- 
Mathieu  Arnold      \      Responsable R & D
a b s o l i g h t     \      www.absolight.fr
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