Description of problem:
Ran eog (image viewer) and the machine has locked up.

Version-Release number of selected component (if applicable):
kernel-3.6.10-2.fc16.x86_64

How reproducible:
Did not try to reproduce but IIRC such lock-ups did happen in the past, I cannot say anything about backtraces in the past.

Steps to Reproduce:
eog *.jpeg

Actual results:

general protection fault: 0000 [#1] SMP
Modules linked in: nfsv4 nfs fscache dns_resolver ppdev parport_pc lp parport hidp fuse be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 cxgb3i libcxgbi cxgb3 mdio ib_iser rdma_cm ib_cm iw_cm ib_sa netconsole ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi rfcomm bnep ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_LOG xt_recent xt_state ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 snd_hda_codec_hdmi snd_hda_codec_conexant btusb bluetooth arc4 uvcvideo iwldvm videobuf2_core mac80211 videodev media iTCO_wdt iTCO_vendor_support videobuf2_vmalloc snd_usb_audio videobuf2_memops snd_usbmidi_lib snd_rawmidi vhost_net snd_hda_intel macvtap coretemp macvlan tun snd_hda_codec snd_hwdep kvm_intel snd_seq kvm snd_seq_device thinkpad_acpi snd_pcm i2c_i801 microcode uinput e1000e iwlwifi lpc_ich snd_timer mfd_core cfg80211 snd soundcore rfkill snd_page_alloc nfsd lockd nfs_acl auth_rpcgss sunrpc btrfs zlib_deflate libcrc32c xts gf128mul dm_crypt crc32c_intel ghash_clmulni_intel sdhci_pci sdhci mmc_core wmi i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: ftdi_sio]
CPU 0
Pid: 640, comm: btrfs-transacti Not tainted 3.6.10-2.fc16.x86_64 #1 LENOVO 4291EJ3/4291EJ3
RIP: 0010:[<ffffffff8117979e>]  [<ffffffff8117979e>] kmem_cache_alloc_trace+0x5e/0x150
RSP: 0018:ffff88020b88b800  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8800902ea968 RCX: 000000000ae391c6
RDX: 000000000a867010 RSI: 0000000000000050 RDI: 0000000000016ae0
RBP: ffff88020b88b850 R08: ffff88021e216ae0 R09: ffffffffa0195263
R10: 57ffe8053a7eb180 R11: 0000000000000000 R12: ffff880215802700
R13: 5245564509000000 R14: ffffffffa016eaae R15: 0000000000000050
FS:  0000000000000000(0000) GS:ffff88021e200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007f5044b5e0f0 CR3: 0000000001c0b000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process btrfs-transacti (pid: 640, threadinfo ffff88020b88a000, task ffff880212449720)
Stack:
 ffff88020b88b820 ffffffffa0196540 0000000000000028 ffffffffa017a58e
 ffff88020b88b850 ffff8800902ea968 ffff88020b832000 ffff88020b88b96b
 0000000000000000 ffff88020bd8a990 ffff88020b88b900 ffffffffa016eaae
Call Trace:
 [<ffffffffa0196540>] ? set_extent_dirty+0x20/0x30 [btrfs]
 [<ffffffffa017a58e>] ? btrfs_set_buffer_uptodate+0xe/0x10 [btrfs]
 [<ffffffffa016eaae>] btrfs_alloc_free_block+0x11e/0x330 [btrfs]
 [<ffffffffa017723e>] ? btree_set_page_dirty+0x3e/0x50 [btrfs]
 [<ffffffffa015abd6>] __btrfs_cow_block+0x126/0x4f0 [btrfs]
 [<ffffffffa015b09c>] btrfs_cow_block+0xfc/0x220 [btrfs]
 [<ffffffffa015f2c4>] btrfs_search_slot+0x464/0x920 [btrfs]
 [<ffffffffa016598e>] lookup_inline_extent_backref+0x8e/0x4c0 [btrfs]
 [<ffffffffa0196133>] ? set_extent_bit+0x23/0x30 [btrfs]
 [<ffffffff8117a7cc>] ? kmem_cache_alloc+0x12c/0x160
 [<ffffffffa0167d7d>] __btrfs_free_extent+0xbd/0x700 [btrfs]
 [<ffffffffa01995b9>] ? extent_write_cache_pages.constprop.17+0x379/0x410 [btrfs]
 [<ffffffffa01baa59>] ? btrfs_merge_delayed_refs+0x289/0x300 [btrfs]
 [<ffffffffa016ca43>] run_clustered_refs+0x513/0xb30 [btrfs]
 [<ffffffffa0194a59>] ? flush_epd_write_bio+0x39/0x50 [btrfs]
 [<ffffffffa016d150>] btrfs_run_delayed_refs+0xf0/0x2e0 [btrfs]
 [<ffffffffa017e907>] btrfs_commit_transaction+0x97/0xaf0 [btrfs]
 [<ffffffff81080af0>] ? remove_wait_queue+0x50/0x50
 [<ffffffffa0178a3d>] transaction_kthread+0x19d/0x220 [btrfs]
 [<ffffffffa01788a0>] ? btrfs_destroy_delayed_refs+0x1e0/0x1e0 [btrfs]
 [<ffffffff81080243>] kthread+0x93/0xa0
 [<ffffffff816231c4>] kernel_thread_helper+0x4/0x10
 [<ffffffff810801b0>] ? flush_kthread_worker+0xb0/0xb0
 [<ffffffff816231c0>] ? gs_change+0x13/0x13
Code: 00 4d 8b 04 24 65 4c 03 04 25 e8 db 00 00 49 8b 50 08 4d 8b 28 4d 85 ed 0f 84 e6 00 00 00 49 63 44 24 20 49 8b 3c 24 40 f6 c7 0f <49> 8b 5c 05 00 0f 85 cc 00 00 00 48 8d 4a 01 4c 89 e8 65 48 0f
RIP  [<ffffffff8117979e>] kmem_cache_alloc_trace+0x5e/0x150
 RSP <ffff88020b88b800>

Expected results:
No crash.

Additional info:
The crash dump is from netconsole.