Ahh! did btrfs just explode on me?

[Neal Becker]

my /var/log/messages is being filled with:


Jan 21 11:32:17 nbecker1 kernel: [   96.776612] CPU: 0 PID: 577 Comm: auditd 
Tainted: P        W  OE  3.17.8-300.fc21.x86_64
 #1
Jan 21 11:32:17 nbecker1 kernel: [   96.776614] Hardware name: Hewlett-Packard 
HP Pavilion dv9500 Notebook PC    /30CB, BIOS
 F.59      11/25/2008
Jan 21 11:32:17 nbecker1 kernel: [   96.776616]  0000000000000000 
000000002339fabd ffff880136a6fe00 ffffffff81741aea
Jan 21 11:32:17 nbecker1 kernel: [   96.776619]  0000000000000000 
ffff880136a6fe38 ffffffff810970bd ffff8800365ac630
Jan 21 11:32:17 nbecker1 kernel: [   96.776622]  ffff880136a6fe68 
ffff880035ca5800 ffff88012320a000 0000000000000000
Jan 21 11:32:17 nbecker1 kernel: [   96.776625] Call Trace:
Jan 21 11:32:17 nbecker1 kernel: [   96.776634]  [<ffffffff81741aea>] 
dump_stack+0x45/0x56
Jan 21 11:32:17 nbecker1 kernel: [   96.776639]  [<ffffffff810970bd>] 
warn_slowpath_common+0x7d/0xa0
Jan 21 11:32:17 nbecker1 kernel: [   96.776642]  [<ffffffff810971ea>] 
warn_slowpath_null+0x1a/0x20
Jan 21 11:32:17 nbecker1 kernel: [   96.776659]  [<ffffffffa010d549>] 
btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]
Jan 21 11:32:17 nbecker1 kernel: [   96.776674]  [<ffffffffa00b8830>] 
btrfs_commit_transaction+0x3e0/0x9b0 [btrfs]
Jan 21 11:32:17 nbecker1 kernel: [   96.776679]  [<ffffffff810d6ec0>] ? 
abort_exclusive_wait+0xb0/0xb0
Jan 21 11:32:17 nbecker1 kernel: [   96.776695]  [<ffffffffa00c99dc>] 
btrfs_sync_file+0x20c/0x320 [btrfs]
Jan 21 11:32:17 nbecker1 kernel: [   96.776699]  [<ffffffff8123e4d1>] 
do_fsync+0x51/0x80
Jan 21 11:32:17 nbecker1 kernel: [   96.776701]  [<ffffffff8123e780>] 
SyS_fsync+0x10/0x20
Jan 21 11:32:17 nbecker1 kernel: [   96.776706]  [<ffffffff81748ca9>] 
system_call_fastpath+0x16/0x1b
Jan 21 11:32:17 nbecker1 kernel: [   96.776708] ---[ end trace 078074cca72a1d72 
]---
Jan 21 11:32:17 nbecker1 kernel: [   96.851428] ------------[ cut here 
]------------
Jan 21 11:32:17 nbecker1 kernel: [   96.851478] WARNING: CPU: 0 PID: 1749 at 
fs/btrfs/delayed-inode.c:1410 btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]
()
Jan 21 11:32:17 nbecker1 kernel: [   96.851480] Modules linked in: rfcomm fuse 
nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack bnep iTCO_wdt 
iTCO_vendor_support binfmt_misc hp_wmi sparse_keymap arc4 iwl4965 coretemp 
kvm_intel kvm iwlegacy btusb bluetooth mac80211 joydev serio_raw 
snd_hda_codec_si3054 snd_hda_codec_realtek snd_hda_codec_generic i2c_i801 
nvidia(POE) snd_hda_intel snd_hda_controller lpc_ich cfg80211 snd_hda_codec 
mfd_core r592 snd_hwdep memstick snd_seq drm snd_seq_device sdhci_pci snd_pcm 
sdhci mmc_core rfkill snd_timer snd shpchp acpi_cpufreq soundcore nfsd 
auth_rpcgss nfs_acl lockd sunrpc btrfs xor raid6_pq firewire_ohci firewire_core 
r8169 ata_generic pata_acpi wmi mii crc_itu_t video
an 21 11:32:17 nbecker1 kernel: [   96.776612] CPU: 0 PID: 577 Comm: auditd 
Tainted: P        W  OE  3.17.8-300.fc21.x86_64
 #1
Jan 21 11:32:17 nbecker1 kernel: [   96.776614] Hardware name: Hewlett-Packard 
HP Pavilion dv9500 Notebook PC    /30CB, BIOS
 F.59      11/25/2008
Jan 21 11:32:17 nbecker1 kernel: [   96.776616]  0000000000000000 
000000002339fabd ffff880136a6fe00 ffffffff81741aea
Jan 21 11:32:17 nbecker1 kernel: [   96.776619]  0000000000000000 
ffff880136a6fe38 ffffffff810970bd ffff8800365ac630
Jan 21 11:32:17 nbecker1 kernel: [   96.776622]  ffff880136a6fe68 
ffff880035ca5800 ffff88012320a000 0000000000000000
Jan 21 11:32:17 nbecker1 kernel: [   96.776625] Call Trace:
Jan 21 11:32:17 nbecker1 kernel: [   96.776634]  [<ffffffff81741aea>] 
dump_stack+0x45/0x56
Jan 21 11:32:17 nbecker1 kernel: [   96.776639]  [<ffffffff810970bd>] 
warn_slowpath_common+0x7d/0xa0
Jan 21 11:32:17 nbecker1 kernel: [   96.776642]  [<ffffffff810971ea>] 
warn_slowpath_null+0x1a/0x20
Jan 21 11:32:17 nbecker1 kernel: [   96.776659]  [<ffffffffa010d549>] 
btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]
Jan 21 11:32:17 nbecker1 kernel: [   96.776674]  [<ffffffffa00b8830>] 
btrfs_commit_transaction+0x3e0/0x9b0 [btrfs]
Jan 21 11:32:17 nbecker1 kernel: [   96.776679]  [<ffffffff810d6ec0>] ? 
abort_exclusive_wait+0xb0/0xb0
Jan 21 11:32:17 nbecker1 kernel: [   96.776695]  [<ffffffffa00c99dc>] 
btrfs_sync_file+0x20c/0x320 [btrfs]
Jan 21 11:32:17 nbecker1 kernel: [   96.776699]  [<ffffffff8123e4d1>] 
do_fsync+0x51/0x80
Jan 21 11:32:17 nbecker1 kernel: [   96.776701]  [<ffffffff8123e780>] 
SyS_fsync+0x10/0x20
Jan 21 11:32:17 nbecker1 kernel: [   96.776706]  [<ffffffff81748ca9>] 
system_call_fastpath+0x16/0x1b
Jan 21 11:32:17 nbecker1 kernel: [   96.776708] ---[ end trace 078074cca72a1d72 
]---
Jan 21 11:32:17 nbecker1 kernel: [   96.851428] ------------[ cut here 
]------------
Jan 21 11:32:17 nbecker1 kernel: [   96.851478] WARNING: CPU: 0 PID: 1749 at 
fs/btrfs/delayed-inode.c:1410 btrfs_assert_delayed_root_empty+0x39/0x40 [btrfs]
()
Jan 21 11:32:17 nbecker1 kernel: [   96.851480] Modules linked in: rfcomm fuse 
nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack bnep iTCO_wdt 
iTCO_vendor_support binfmt_misc hp_wmi sparse_keymap arc4 iwl4965 coretemp 
kvm_intel kvm iwlegacy btusb bluetooth mac80211 joydev serio_raw 
snd_hda_codec_si3054 snd_hda_codec_realtek snd_hda_codec_generic i2c_i801 
nvidia(POE) snd_hda_intel snd_hda_controller lpc_ich cfg80211 snd_hda_codec 
mfd_core r592 snd_hwdep memstick snd_seq drm snd_seq_device sdhci_pci snd_pcm 
sdhci mmc_core rfkill snd_timer snd shpchp acpi_cpufreq soundcore nfsd 
auth_rpcgss nfs_acl lockd sunrpc btrfs xor raid6_pq firewire_ohci firewire_core 
r8169 ata_generic pata_acpi wmi mii crc_itu_t video

-- 
-- Those who don't understand recursion are doomed to repeat it