Fatal Trap & ulpt0

[arnaud de prelle]

I got two times a fatal trap error wich freeze completely a 5.3-*RELEASE* !
The context is restarting ekpd (from /usr/ports/print/pips-sc60s the 
driver for the usb Epson C62 printer)

Here is the message:

Nov 21 18:34:59 pnserver syslogd: kernel boot file is 
/boot/kernel/kernel Nov 21 18:34:59 pnserver kernel: ulpt0: at uhub1 
port 1 (addr 2) disconnected
Nov 21 18:34:59 pnserver kernel:
Nov 21 18:34:59 pnserver kernel: Nov 21 18:34:59 pnserver kernel: Fatal 
trap 12: page fault while in kernel mode
Nov 21 18:34:59 pnserver kernel: fault virtual address  = 0x24
Nov 21 18:34:59 pnserver kernel: fault code             = supervisor 
read, page not present
Nov 21 18:34:59 pnserver kernel: instruction pointer    = 0x8:0xc047b40b
Nov 21 18:34:59 pnserver kernel: stack pointer          = 0x10:0xd5067c48
Nov 21 18:34:59 pnserver kernel: frame pointer          = 0x10:0xd5067c60
Nov 21 18:34:59 pnserver kernel: code segment           = base 0x0, 
limit 0xfffff, type 0x1b
Nov 21 18:34:59 pnserver kernel: = DPL 0, pres 1, def32 1, gran 1
Nov 21 18:34:59 pnserver kernel: processor eflags       = interrupt 
enabled, resume, IOPL = 0
Nov 21 18:34:59 pnserver kernel: current process                = 48 (usb1)
Nov 21 18:34:59 pnserver kernel: trap number            = 12
Nov 21 18:34:59 pnserver kernel: panic: page fault
Nov 21 18:34:59 pnserver kernel: Uptime: 16h26m20s

What Do I have to do in order to stop this ?

Thanks
Arnaud