libreport version: 2.0.6
abrt_version:   2.0.4.981
cmdline:        BOOT_IMAGE=/boot/vmlinuz-3.1.0-7.fc16.i686 root=UUID=2c924b87-74ba-4f6d-8e1a-349751185154 ro LANG=ru_RU.UTF-8 rd.md=0 rd.lvm=0 rd.dm=0 quiet rhgb rd.luks=0 KEYTABLE=ru
comment:        insert flash usb 
kernel:         undefined
reason:         BUG: unable to handle kernel NULL pointer dereference at 00000014
time:           Fri Jan  6 22:37:17 2012

backtrace:
:BUG: unable to handle kernel NULL pointer dereference at 00000014
:IP: [<f9bb3edc>] btrfs_print_leaf+0x10/0x822 [btrfs]
:*pde = b52ab067 
:Oops: 0000 [#1] SMP 
:Modules linked in: ppp_deflate ppp_async crc_ccitt ppp_generic slhc fuse lockd rfcomm bnep ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ip6table_filter ip6_tables snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep option snd_seq snd_seq_device usb_wwan snd_pcm snd_timer btusb bluetooth snd microcode ppdev parport_pc forcedeth k10temp soundcore serio_raw parport rfkill snd_page_alloc i2c_nforce2 sunrpc uinput btrfs zlib_deflate libcrc32c pata_acpi ata_generic pata_amd uas usb_storage nouveau ttm drm_kms_helper drm i2c_algo_bit i2c_core mxm_wmi wmi video [last unloaded: scsi_wait_scan]
:Pid: 3257, comm: btrfs-delayed-m Not tainted 3.1.0-7.fc16.i686 #1 To Be Filled By O.E.M. To Be Filled By O.E.M./N68PV-GS
:EIP: 0060:[<f9bb3edc>] EFLAGS: 00010286 CPU: 2
:EIP is at btrfs_print_leaf+0x10/0x822 [btrfs]
:EAX: edef6400 EBX: edef6400 ECX: e382fc14 EDX: 00000000
:ESI: 00000000 EDI: 00000000 EBP: e4031d88 ESP: e4031d14
: DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
:Process btrfs-delayed-m (pid: 3257, ti=e4030000 task=f34925b0 task.ti=e4030000)
:Stack:
: e382efff 00000000 00000000 e383b000 00000000 edef6400 e4031d38 f9bac6c8
: 00000000 00000001 00000000 00000005 c080f52f e4031d80 ffffffff 00000000
: 00000000 000000b0 f9ba3fed 00006d98 f0fec690 00ba3fed 00e383b0 a8000000
:Call Trace:
: [<f9bac6c8>] ? btrfs_put_block_group+0x16/0x74 [btrfs]
: [<c080f52f>] ? _cond_resched+0xd/0x21
: [<f9ba3fed>] ? btrfs_alloc_path+0x17/0x19 [btrfs]
: [<f9bad454>] __btrfs_free_extent+0x300/0x691 [btrfs]
: [<f9bef344>] ? btrfs_delayed_ref_lock+0x2d/0x82 [btrfs]
: [<f9bb0079>] run_clustered_refs+0x78d/0x7cf [btrfs]
: [<f9ba3cae>] ? unlock_up+0x84/0x9e [btrfs]
: [<f9bb0171>] btrfs_run_delayed_refs+0xb6/0x135 [btrfs]
: [<f9be4f4d>] ? btrfs_tree_unlock+0x83/0x8a [btrfs]
: [<f9bbe6be>] __btrfs_end_transaction+0x71/0x1c0 [btrfs]
: [<f9bbe827>] btrfs_end_transaction_dmeta+0x1a/0x1c [btrfs]
: [<f9bf6922>] btrfs_async_run_delayed_node_done+0xdb/0x125 [btrfs]
: [<f9be065f>] worker_loop+0xf9/0x39e [btrfs]
: [<f9be0566>] ? btrfs_queue_worker+0x1e8/0x1e8 [btrfs]
: [<c04543f0>] kthread+0x67/0x6c
: [<c0454389>] ? kthread_worker_fn+0x11d/0x11d
: [<c0816b3e>] kernel_thread_helper+0x6/0x10
:Code: ff ff 31 f6 8b 45 cc 8b 55 d0 89 47 08 89 f0 89 57 0c 83 c4 48 5b 5e 5f 5d c3 90 55 89 e5 57 56 53 83 ec 68 3e 8d 74 26 00 89 c3 <8b> 42 14 89 55 dc e8 55 31 91 c6 8b 55 dc 8b 40 60 89 45 bc 89 
:EIP: [<f9bb3edc>] btrfs_print_leaf+0x10/0x822 [btrfs] SS:ESP 0068:e4031d14
:CR2: 0000000000000014

event_log:
:2012-01-06-22:38:40> Submitting oops report to http://submit.kerneloops.org/submitoops.php
:2012-01-06-22:39:56  Kernel oops has not been sent due to Couldn't connect to server
:2012-01-06-22:39:56* (exited with 1)