drivers/usb/serial/usb-serial.c: USB Serial support registered for FTDI USB Serial Device
ftdi_sio 3-2:1.0: FTDI USB Serial Device converter detected
BUG: unable to handle kernel NULL pointer dereference at virtual address 00000014
 printing eip:
f8a1740a
*pde = 00000000
Oops: 0002 [#1]
SMP 
last sysfs file: /devices/pci0000:00/0000:00:1d.7/usb5/idVendor
Modules linked in: ftdi_sio bluetooth snd_seq snd_ac97_codec usblp v4l1_compat fw_core snd_rawmidi sr_mod snd_pcm_oss snd_mixer_oss ac97_bus snd_util_mem usbserial e100 serio_raw snd_seq_device snd_hwdep snd_pcm emu10k1_gp cdrom mii snd_timer gameport snd soundcore iTCO_wdt snd_page_alloc i2c_i801 iTCO_vendor_support pcspkr i2c_core floppy sg joydev usb_storage ata_piix ata_generic libata sd_mod scsi_mod ext3 jbd mbcache ehci_hcd ohci_hcd uhci_hcd
CPU:    0
EIP:    0060:[<f8a1740a>]    Not tainted VLI
EFLAGS: 00010246   (2.6.21-1.3194.fc7 #1)
EIP is at ftdi_USB_UIRT_setup+0x34/0x4e [ftdi_sio]
eax: 00000000   ebx: f583f400   ecx: f8a17b34   edx: f8a173d6
esi: f8a1dae0   edi: 00000040   ebp: f8a1dae0   esp: f582acdc
ds: 007b   es: 007b   fs: 00d8  gs: 0033  ss: 0068
Process modprobe (pid: 935, ti=f582a000 task=f5913150 task.ti=f582a000)
Stack: f791e464 00000246 f598fb00 f5e823c0 f8a160b5 f898690a f898855b f8a18f6f 
       f5ea06d0 f8a194fa f5ea0600 f5ea4800 f8a1dae0 00000000 00000000 00000001 
       00000001 f583f400 00000000 c1806d60 00000001 00000001 00000001 00000000 
Call Trace:
 [<f8a160b5>] ftdi_sio_attach+0xf/0x12 [ftdi_sio]
 [<f898690a>] usb_serial_probe+0x97b/0xdd1 [usbserial]
 [<c042e748>] lock_timer_base+0x19/0x35
 [<c042e7a8>] try_to_del_timer_sync+0x44/0x4a
 [<c05692c8>] usb_resume_both+0xa1/0xb7
 [<c056947c>] usb_autopm_do_device+0xb3/0xbd
 [<c04ad4dd>] sysfs_create_link+0x128/0x13f
 [<c0568fd2>] usb_match_one_id+0x1c/0x71
 [<c0569d2d>] usb_probe_interface+0x81/0xb2
 [<c05529ab>] really_probe+0xc6/0x14f
 [<c0552a78>] driver_probe_device+0x44/0xa5
 [<c0552b72>] __driver_attach+0x0/0xa5
 [<c0552be2>] __driver_attach+0x70/0xa5
 [<c0551ffb>] bus_for_each_dev+0x37/0x59
 [<c055282a>] driver_attach+0x16/0x18
 [<c0552b72>] __driver_attach+0x0/0xa5
 [<c05522ad>] bus_add_driver+0x5e/0x15f
 [<c056985c>] usb_register_driver+0x6d/0xd4
 [<f89857b5>] usb_serial_register+0x1ed/0x1f6 [usbserial]
 [<f8806091>] ftdi_init+0x91/0xbe [ftdi_sio]
 [<c04432e4>] sys_init_module+0x16c3/0x17fa
 [<c04755f8>] do_sync_read+0xc7/0x10a
 [<c0468484>] do_mmap_pgoff+0x593/0x6f3
 [<c05507e5>] device_remove_file+0x0/0x25
 [<c0475531>] do_sync_read+0x0/0x10a
 [<c0475e85>] vfs_read+0xa6/0x152
 [<c0404f70>] syscall_call+0x7/0xb
 =======================
Code: ee a1 f8 00 74 1c c7 44 24 08 a4 86 a1 f8 c7 44 24 04 b7 88 a1 f8 c7 04 24 d5 88 a1 f8 e8 49 03 a1 c7 8b 43 14 8b 80 8c 01 00 00 <83> 48 14 30 c7 40 08 4d 00 00 00 c7 80 80 00 00 00 0f 00 00 00 
EIP: [<f8a1740a>] ftdi_USB_UIRT_setup+0x34/0x4e [ftdi_sio] SS:ESP 0068:f582acdc