kbd2 at ukbd0
ugen0.2: <QEMU> at usbus0 (disconnected)
ukbd0: at uhub0, port 1, addr 2 (disconnected)
ukbd0: detached
ugen0.2: <QEMU> at usbus0
ukbd0: <QEMU QEMU USB Keyboard, class 0/0, rev 2.00/0.00, addr 2> on usbus0
kbd2 at ukbd0
ugen0.2: <QEMU> at usbus0 (disconnected)
ukbd0: at uhub0, port 2, addr 2 (disconnected)
ukbd0: detached
ugen0.2: <QEMU> at usbus0
ukbd0: <QEMU QEMU USB Keyboard, class 0/0, rev 2.00/0.00, addr 2> on usbus0
kbd2 at ukbd0
ugen0.2: <QEMU> at usbus0 (disconnected)
ukbd0: at uhub0, port 1, addr 2 (disconnected)
ukbd0: detached
ugen0.2: <QEMU> at usbus0
ukbd0: <QEMU QEMU USB Keyboard, class 0/0, rev 2.00/0.00, addr 2> on usbus0
kbd2 at ukbd0
ugen0.2: <QEMU> at usbus0 (disconnected)
ukbd0: at uhub0, port 2, addr 2 (disconnected)
ukbd0: detached
ugen0.2: <QEMU> at usbus0
ukbd0: <QEMU QEMU USB Keyboard, class 0/0, rev 2.00/0.00, addr 2> on usbus0
kbd2 at ukbd0
ugen0.2: <QEMU> at usbus0 (disconnected)
ukbd0: at uhub0, port 1, addr 2 (disconnected)
ukbd0: detached
ugen0.2: <QEMU> at usbus0
ukbd0: <QEMU QEMU USB Keyboard, class 0/0, rev 2.00/0.00, addr 2> on usbus0
kbd2 at ukbd0
ugen0.2: <QEMU> at usbus0 (disconnected)
ukbd0: at uhub0, port 2, addr 2 (disconnected)
ukbd0: detached
ugen0.2: <QEMU> at usbus0
ukbd0: <QEMU QEMU USB Keyboard, class 0/0, rev 2.00/0.00, addr 2> on usbus0
kbd2 at ukbd0
ugen0.2: <QEMU> at usbus0 (disconnected)
ukbd0: at uhub0, port 1, addr 2 (disconnected)
Fatal user address access from kernel mode from kbdspam at ffffffff80b7d273


Fatal trap 12: page fault while in kernel mode
cpuid = 0; lapic id = 0
fault virtual address	= 0x58
fault code		= supervisor read data, page not present
instruction pointer	= 0x8:0xffffffff80b7d273
stack pointer	        = 0x10:0xfffff8011836f6a8
frame pointer	        = 0x10:0xfffff8011836f6c8
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 0, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 1690
current thread          = pri 10 
kernel: type 12 trap, code=0

CPU0 stopping CPUs: 0x0000003e
 stopped
Stopped at      kbd_ioctl+0x73: movq    0x58(%rax),%rax
db>