abrt version: 2.0.1
architecture:   x86_64
cmdline:        ro root=/dev/mapper/vg_system04-lv_root rd_LVM_LV=vg_system04/lv_root rd_LVM_LV=vg_system04/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=de rhgb quiet nouveau.modeset=0 rdblacklist=nouveau vga=789
component:      kernel
kernel:         2.6.38.6-27.fc15.x86_64
kernel_tainted: 1
os_release:     Fedora release 15 (Lovelock)
package:        kernel
reason:         BUG: unable to handle kernel paging request at ffff880062673d80
reported_to:    kerneloops: URL=http://submit.kerneloops.org/submitoops.php
time:           Sat Jun  4 13:45:07 2011

backtrace:
:BUG: unable to handle kernel paging request at ffff880062673d80
:IP: [<ffff880062673d80>] 0xffff880062673d80
:PGD 1a04063 PUD 1fffc067 PMD 622ac063 PTE 8000000062673163
:Oops: 0011 [#1] SMP 
:last sysfs file: /sys/devices/pci0000:00/0000:00:1a.7/class
:CPU 0 
:Modules linked in: tcp_lp usb_storage uas nls_utf8 fuse 8021q garp stp llc cpufreq_ondemand acpi_cpufreq freq_table mperf ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables snd_hda_codec_hdmi snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_event snd_seq_midi_emul snd_emu10k1 snd_rawmidi snd_hda_intel snd_ac97_codec snd_hda_codec ac97_bus snd_seq snd_pcm nvidia(P) microcode snd_seq_device snd_util_mem snd_hwdep sky2 emu10k1_gp gameport i2c_i801 iTCO_wdt iTCO_vendor_support snd_timer snd soundcore snd_page_alloc ipv6 firewire_ohci firewire_core crc_itu_t nouveau ttm drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
:Pid: 2737, comm: umount Tainted: P            2.6.38.6-27.fc15.x86_64 #1 Gigabyte Technology Co., Ltd. 965P-DS3P/965P-DS3P
:RIP: 0010:[<ffff880062673d80>]  [<ffff880062673d80>] 0xffff880062673d80
:RSP: 0018:ffff880037877a90  EFLAGS: 00010082
:RAX: 0000000000000000 RBX: ffff880037899470 RCX: 0000000000000010
:RDX: ffff880062673d80 RSI: 0000000000000000 RDI: ffff880037899470
:RBP: ffff880037877a98 R08: 0000000000000000 R09: ffff88006f5797e0
:R10: ffff88007fc13840 R11: ffff880061c047e0 R12: ffff880037877b40
:R13: 0000000000000000 R14: ffff88006f5797e0 R15: 0000000000000001
:FS:  00007ffb12a6e820(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000
:CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
:CR2: ffff880062673d80 CR3: 00000000565b8000 CR4: 00000000000006f0
:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
:Process umount (pid: 2737, threadinfo ffff880037876000, task ffff880061920000)
:Stack:
: ffffffff812115fb ffff880037877af8 ffffffff81215cc9 ffff880037877ab8
: 0000000000000000 0000001037877b18 ffffffff8104df64 0000000000000001
: ffff880037899470 ffff880037877b40 0000000000000000 ffff88006f5797e0
:Call Trace:
: [<ffffffff812115fb>] ? elv_may_queue+0x1d/0x1f
: [<ffffffff81215cc9>] get_request+0x33/0x262
: [<ffffffff8104df64>] ? try_to_wake_up+0x214/0x226Jun  4 13:45:06 system04 kernel: imklog 5.7.9, log source = /proc/kmsg started.

comment:
:1. I connect my external Harddrive via USB 2.0 (It's a Toshiba 2TB NTFS-formatted).
:2. I run deja-dup and let it do or refresh a backup (not sure if this step is necessary)
:3. When the backup is done I open Nautilus, right-click on the external Harddrive and choose "remove device safely" (or whatever its called in english)
:
:It happens every time

comment~:
:1. I connect my external Harddrive via USB 2.0 (It's a Toshiba 2TB NTFS-formatted).
:2. I run deja-dup and let it do or refresh a backup (not sure if this step is necessary)
:3. When the backup is done I open Nautilus, right-click on the external Harddrive and choose "remove device safely" (or whatever its called in english)

event_log:
:2011-06-04-13:54:52> Submitting oops report to http://submit.kerneloops.org/submitoops.php
:2011-06-04-13:56:03  Kernel oops report was uploaded