Description:
============
Today I made an update and for now on I can not access any usb device (except mouse and keyboard...).
Tried a usb-stick a card reader, nothing worked.


Additional info:
================

I am using nforce 4 ultra chipset for amd athlon x2 (4800).

dmesg says:
-----------------
eth0: no IPv6 routers present
BUG: unable to handle kernel NULL pointer dereference at 00000005
IP: [<f8219938>] fat_fill_super+0xb8/0xd70 [fat]
*pde = 00000000
Oops: 0000 [#1] PREEMPT SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:18.3/modalias
Modules linked in: vfat fat ipv6 vboxnetadp vboxnetflt joydev usbhid hid ext3 jbd usb_storage snd_seq_dummy snd_seq_oss snd_emu10k1 snd_rawmidi snd_seq_midi_event battery snd_ac97_codec snd_seq ac97_bus snd_pcm_oss ac snd_pcm snd_mixer_oss ohci_hcd snd_seq_device snd_timer snd_page_alloc snd_util_mem ehci_hcd vboxdrv snd_hwdep nvidia(P) firewire_ohci agpgart snd firewire_core i2c_nforce2 soundcore usbcore crc_itu_t emu10k1_gp i2c_core forcedeth parport_pc fan ppdev k8temp lp gameport parport psmouse fuse processor button sg evdev thermal pcspkr serio_raw rtc_cmos rtc_core rtc_lib ext4 mbcache jbd2 crc16 sr_mod cdrom sd_mod floppy sata_nv sata_sil24 ata_generic pata_amd pata_acpi sata_sil libata scsi_mod dm_mirror dm_region_hash dm_log dm_mod

Pid: 20375, comm: mount Tainted: P (2.6.32-ARCH #1) MS-7125
EIP: 0060:[<f8219938>] EFLAGS: 00010202 CPU: 0
EIP is at fat_fill_super+0xb8/0xd70 [fat]
EAX: f0ea1d50 EBX: f8064ba0 ECX: 00000000 EDX: 00000001
ESI: f2d8a800 EDI: fffffff4 EBP: f2d8a850 ESP: ef61bdf0
DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process mount (pid: 20375, ti=ef61a000 task=f0ea1d50 task.ti=ef61a000)
Stack:
c116d28f f60cc800 c1172495 fffffffe fe4bbc8b ef61beb7 f22e5200 ef61be8c
<0> efdee000 c1173315 00000000 00000000 00000010 00000002 ffffffff 0000000a
<0> ffffffff ffffffff ef61bed4 ef61beb4 efdee000 00000010 00000002 ffffffff
Call Trace:
[<c116d28f>] ? kobject_get+0xf/0x20
[<c1172495>] ? string+0x35/0xd0
[<c1173315>] ? vsnprintf+0xb5/0x400
[<c11736eb>] ? snprintf+0x1b/0x20
[<c112c0c5>] ? disk_name+0x55/0xc0
[<f806324a>] ? vfat_fill_super+0x1a/0x50 [vfat]
[<c10e1787>] ? get_sb_bdev+0x177/0x1c0
[<f8063230>] ? vfat_fill_super+0x0/0x50 [vfat]
[<f8063220>] ? vfat_get_sb+0x20/0x30 [vfat]
[<f8063230>] ? vfat_fill_super+0x0/0x50 [vfat]
[<c10e12d9>] ? vfs_kern_mount+0x69/0x170
[<c10f4fd1>] ? get_fs_type+0x91/0xb0
[<c10e143f>] ? do_kern_mount+0x3f/0xe0
[<c10f7ae0>] ? do_mount+0x1f0/0x730
[<c10f5f40>] ? copy_mount_options+0xd0/0x140
[<c10f808e>] ? sys_mount+0x6e/0xa0
[<c10039f3>] ? sysenter_do_call+0x12/0x28
Code: 20 0f b6 94 24 a4 00 00 00 89 44 24 50 0f b6 46 6a 83 e2 01 c1 e2 04 83 e0 ef 09 d0 88 46 6a 64 a1 8c a4 43 c1 8b 90 fc 01 00 00 <8b> 52 04 89 56 50 8b 80 fc 01 00 00 8b 40 08 89 46 54 e8 21 70
EIP: [<f8219938>] fat_fill_super+0xb8/0xd70 [fat] SS:ESP 0068:ef61bdf0
CR2: 0000000000000005
---[ end trace c93c2b6d58e5b4d4 ]---
usb 1-5: USB disconnect, address 2