Additional info:
reporter:       libreport-2.1.6
WARNING: at fs/btrfs/super.c:254 __btrfs_abort_transaction+0xed/0x100 [btrfs]()
Modules linked in: usb_storage nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat_ipv4 nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ebtable_filter ebtables ip6table_filter ip6_tables rfcomm bnep be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 cxgb3i cxgb3 mdio libcxgbi ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi arc4 brcmsmac cordic brcmutil mac80211 cfg80211 rtsx_pci_ms memstick rtsx_pci_sdmmc hp_wmi sparse_keymap acpi_cpufreq btusb mperf kvm_amd kvm bluetooth rfkill snd_hda_codec_idt snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep i2c_piix4 k10temp snd_seq snd_seq_device snd_pcm snd_page_alloc snd_timer snd soundcore microcode joydev hp_accel rtsx_pci mfd_core bcma lis3lv02d input_polldev nfsd auth_rpcgss nfs_acl uinput lockd ata_generic btrfs zlib_deflate raid6_pq libcrc32c xor pata_acpi radeon i2c_algo_bit pata_atiixp drm_kms_helper ttm sdhci_pci drm r8169 sdhci mmc_core mii i2c_core wmi video sunrpc
CPU: 2 PID: 1698 Comm: btrfs-transacti Not tainted 3.10.11-100.fc18.x86_64 #1
Hardware name: Hewlett-Packard HP Pavilion dv7 Notebook PC/180B, BIOS F.17 03/13/2012
 0000000000000009 ffff880160c2b8e8 ffffffff81656735 ffff880160c2b928
 ffffffff8105d670 ffff880160c2b9c8 00000000fffffffb ffff88019101ddc0
 ffff880195579800 ffffffffa02ef3c0 0000000000001586 ffff880160c2b988
Call Trace:
 [<ffffffff81656735>] dump_stack+0x19/0x1b
 [<ffffffff8105d670>] warn_slowpath_common+0x70/0xa0
 [<ffffffff8105d756>] warn_slowpath_fmt+0x46/0x50
 [<ffffffff811847ca>] ? kmem_cache_alloc+0x1ca/0x210
 [<ffffffffa0255b2d>] __btrfs_abort_transaction+0xed/0x100 [btrfs]
 [<ffffffffa0266cb3>] __btrfs_free_extent+0x523/0xa40 [btrfs]
 [<ffffffffa02c394c>] ? btrfs_merge_delayed_refs+0x1fc/0x3c0 [btrfs]
 [<ffffffffa026afa7>] run_clustered_refs+0x707/0xda0 [btrfs]
 [<ffffffffa025e56b>] ? btrfs_search_slot+0x7fb/0x920 [btrfs]
 [<ffffffffa029600b>] ? btrfs_set_token_32+0x6b/0x100 [btrfs]
 [<ffffffffa02c2a93>] ? find_ref_head+0x83/0xf0 [btrfs]
 [<ffffffffa026f0a0>] btrfs_run_delayed_refs+0xe0/0x570 [btrfs]
 [<ffffffffa026f5e0>] btrfs_write_dirty_block_groups+0xb0/0x640 [btrfs]
 [<ffffffffa027eb6d>] commit_cowonly_roots+0x16d/0x260 [btrfs]
 [<ffffffffa027f90d>] btrfs_commit_transaction+0x5ad/0xac0 [btrfs]
 [<ffffffff81083290>] ? wake_up_bit+0x40/0x40
 [<ffffffffa0277ed5>] transaction_kthread+0x1a5/0x220 [btrfs]
 [<ffffffffa0277d30>] ? btree_readpage_end_io_hook+0x2b0/0x2b0 [btrfs]
 [<ffffffff81082ab0>] kthread+0xc0/0xd0
 [<ffffffff81010000>] ? perf_trace_xen_mmu_flush_tlb_others+0x50/0x110
 [<ffffffff810829f0>] ? kthread_create_on_node+0x120/0x120
 [<ffffffff81664cec>] ret_from_fork+0x7c/0xb0
 [<ffffffff810829f0>] ? kthread_create_on_node+0x120/0x120

Possibly related to bug 62111