abrt version: 2.0.1
architecture:   x86_64
cmdline:        ro root=/dev/mapper/luks-fb9d49c4-ff81-4360-8934-8cc7b3ed9737 rd_LUKS_UUID=luks-fb9d49c4-ff81-4360-8934-8cc7b3ed9737 rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us rhgb quiet
component:      kernel
kernel:         2.6.38.7-30.fc15.x86_64
kernel_tainted: 640
os_release:     Fedora release 15 (Lovelock)
package:        kernel
reason:         BUG: unable to handle kernel NULL pointer dereference at 0000000000000078
reported_to:    kerneloops: URL=http://submit.kerneloops.org/submitoops.php
time:           Mon Jun 13 15:08:49 2011

backtrace:
:BUG: unable to handle kernel NULL pointer dereference at 0000000000000078
:IP: [<ffffffff8121160e>] elv_may_queue+0x10/0x1f
:PGD 0 
:Oops: 0000 [#1] SMP 
:last sysfs file: /sys/devices/pci0000:00/0000:00:1d.0/usb2/idVendor
:CPU 3 
:Modules linked in: tun nls_utf8 ses enclosure usb_storage uas tcp_lp fuse ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat xt_CHECKSUM iptable_mangle bridge stp llc ppdev parport_pc parport sunrpc cpufreq_ondemand acpi_cpufreq freq_table mperf ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables arc4 snd_hda_codec_hdmi snd_hda_codec_conexant i2400m_usb i2400m snd_hda_intel wimax snd_hda_codec iwlagn snd_hwdep snd_seq snd_seq_device snd_pcm microcode iwlcore btusb mac80211 bluetooth cfg80211 iTCO_wdt joydev i2c_i801 intel_ips snd_timer e1000e thinkpad_acpi iTCO_vendor_support snd_page_alloc wmi rfkill snd soundcore virtio_net kvm_intel kvm ipv6 xts gf128mul dm_crypt i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
:Pid: 12519, comm: umount Tainted: G        W   2.6.38.7-30.fc15.x86_64 #1 LENOVO 3249CTO/3249CTO
:RIP: 0010:[<ffffffff8121160e>]  [<ffffffff8121160e>] elv_may_queue+0x10/0x1f
:RSP: 0018:ffff8801cf5dba98  EFLAGS: 00010096
:RAX: 0000000000000000 RBX: ffff88022edc9470 RCX: 0000000000000010
:RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88022edc9470
:RBP: ffff8801cf5dba98 R08: 0000000000000000 R09: ffff88022fdf6d80
:R10: ffff8801d5f61730 R11: ffff8801cf3302c0 R12: ffff8801cf5dbb40
:R13: 0000000000000000 R14: ffff88022fdf6d80 R15: 0000000000000001
:FS:  00007ff4a2ac4820(0000) GS:ffff8800bb180000(0000) knlGS:0000000000000000
:CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
:CR2: 0000000000000078 CR3: 00000001fbbd9000 CR4: 00000000000006e0
:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
:Process umount (pid: 12519, threadinfo ffff8801cf5da000, task ffff8801d5f61730)
:Stack:
: ffff8801cf5dbaf8 ffffffff81215ce9 ffff8801cf5dbac8 0000000000000000
: 00000010cf92c4a0 ffff88022f303400 ffff8801cf5dbb98 ffff88022edc9470
: ffff8801cf5dbb40 0000000000000000 ffff88022fdf6d80 0000000000000000
:Call Trace:
: [<ffffffff81215ce9>] get_request+0x33/0x262
: [<ffffffff812168b1>] get_request_wait+0x35/0x193
: [<ffffffff811ea1b0>] ? avc_has_perm+0x51/0x63
: [<ffffffff81216a4e>] blk_get_request+0x3f/0x6e
: [<ffffffff812fc981>] scsi_execute+0x41/0x146
: [<ffffffff812fcb22>] scsi_execute_req+0x9c/0xce
: [<ffffffff812f8bbc>] ioctl_internal_command.constprop.1+0x6b/0x163
: [<ffffffff8146f8d0>] ? __slab_free+0x27/0xeb
: [<ffffffff812f8d0d>] scsi_set_medium_removal+0x59/0x94
: [<ffffffff8130b329>] sr_lock_door+0x20/0x22
: [<ffffffff8132c579>] cdrom_release+0x195/0x205
: [<ffffffff8104127e>] ? should_resched+0xe/0x2d
: [<ffffffff81474228>] ? _cond_resched+0xe/0x22
: [<ffffffff8130a2bd>] sr_block_release+0x30/0x4d
: [<ffffffff81149c22>] __blkdev_put+0xc6/0x179
: [<ffffffff81149dd9>] blkdev_put+0x104/0x10c
: [<ffffffff811230e5>] kill_block_super+0x65/0x6a
: [<ffffffff81123321>] deactivate_locked_super+0x26/0x4b
: [<ffffffff81123e8a>] deactivate_super+0x37/0x3b
: [<ffffffff811387bc>] mntput_no_expire+0xcc/0xd1
: [<ffffffff811391f3>] sys_umount+0x2ac/0x2da
: [<ffffffff81009bc2>] system_call_fastpath+0x16/0x1b
:Code: 1f 44 00 00 48 8b 47 18 48 8b 00 48 8b 40 70 48 85 c0 74 05 48 89 f7 ff d0 5d c3 55 48 89 e5 0f 1f 44 00 00 48 8b 47 18 48 8b 00 
:RIP  [<ffffffff8121160e>] elv_may_queue+0x10/0x1f
: RSP <ffff8801cf5dba98>

event_log:
:2011-06-13-20:44:54> Submitting oops report to http://submit.kerneloops.org/submitoops.php
:2011-06-13-20:44:57  Kernel oops report was uploaded