---------- Forwarded message ----------
From: Chester <somethingsome2000@gmail.com>
Date: Thu, Oct 17, 2013 at 3:51 PM
Subject: dmesg filled with btrfs messages
To: linux-btrfs <linux-btrfs@vger.kernel.org>
It''s what looks like the same message repeated over and over again.
Here''s my dmesg: Pasted below is an excerpt. The full netconsole log
is on pastebin http://pastebin.com/4dQGCL9U
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 3.11.0 (root@NaviLaptop) (gcc version
4.6.4 (Funtoo 4.6.4-r2) ) #1 SMP Thu Oct 17 08:33:08 CDT 2013
[ 0.000000] Command line: BOOT_IMAGE=/bzImage-3.11
rootflags=thread_pool=32,autodefrag,inode_cache,subvolid=258
radeon.modeset=1 radeon.audio=1 radeon.dpm=1 zswap.enabled=0
zswap.compressor=lz4hc funtoo-ati zram.num_devices=4 root=/dev/sda6
rootfstype=btrfs root=/dev/sda6
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009f7ff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009f800-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfb3efff] usable
....
[24099.408977] ------------[ cut here ]------------
[24099.408999] WARNING: CPU: 2 PID: 19049 at fs/btrfs/inode.c:2206
record_one_backref+0x303/0x31b()
[24099.409002] Modules linked in: netconsole joydev evdev psmouse
ehci_pci ohci_hcd ehci_hcd xhci_hcd snd_hda_codec_idt
snd_hda_codec_hdmi snd_hda_intel snd_hda_codec r8169 mii brcmsmac
cordic brcmutil bcma bnep bluetooth
[24099.409040] CPU: 2 PID: 19049 Comm: btrfs-endio-wri Tainted: G
W 3.11.0 #1
[24099.409043] Hardware name: Hewlett-Packard HP Pavilion dv6 Notebook
PC/358B, BIOS F.21 09/13/2011
[24099.409046] 000000000000089e ffff880101b63ad8 ffffffff817c33f6
0000000000000027
[24099.409054] 0000000000000000 ffff880101b63b18 ffffffff8106b44d
0000160000000000
[24099.409060] ffffffff812a9588 000000000000008f ffff88016c5b2240
ffff88012eac2600
[24099.409067] Call Trace:
[24099.409074] [<ffffffff817c33f6>] dump_stack+0x46/0x58
[24099.409079] [<ffffffff8106b44d>] warn_slowpath_common+0x7c/0x96
[24099.409083] [<ffffffff812a9588>] ? record_one_backref+0x303/0x31b
[24099.409087] [<ffffffff8106b47c>] warn_slowpath_null+0x15/0x17
[24099.409090] [<ffffffff812a9588>] record_one_backref+0x303/0x31b
[24099.409096] [<ffffffff812ede03>] ? ulist_free+0x1c/0x20
[24099.409210] [<ffffffff812ed7cc>] iterate_extent_inodes+0x148/0x1dd
[24099.409213] [<ffffffff812a9285>] ? btrfs_real_readdir+0x4b5/0x4b5
[24099.409216] [<ffffffff812a9285>] ? btrfs_real_readdir+0x4b5/0x4b5
[24099.409220] [<ffffffff812ed8e5>] iterate_inodes_from_logical+0x84/0x93
[24099.409224] [<ffffffff812a7d8d>] record_extent_backrefs+0x5c/0xa2
[24099.409228] [<ffffffff812b0054>] btrfs_finish_ordered_io+0x64c/0x788
[24099.409232] [<ffffffff81074db9>] ? call_timer_fn+0xe3/0xe3
[24099.409235] [<ffffffff812b01a0>] finish_ordered_fn+0x10/0x12
[24099.409239] [<ffffffff812ca206>] worker_loop+0x169/0x49b
[24099.409242] [<ffffffff812ca09d>] ? btrfs_queue_worker+0x27c/0x27c
[24099.409247] [<ffffffff8108549c>] kthread+0x88/0x90
[24099.409251] [<ffffffff81085414>] ?
kthread_freezable_should_stop+0x3e/0x3e
[24099.409256] [<ffffffff817d0aec>] ret_from_fork+0x7c/0xb0
[24099.409260] [<ffffffff81085414>] ?
kthread_freezable_should_stop+0x3e/0x3e
[24099.409262] ---[ end trace d8a7321b53f5ba9a ]---
[24099.409334] ------------[ cut here ]------------
[24099.409339] WARNING: CPU: 2 PID: 19049 at fs/btrfs/inode.c:2206
record_one_backref+0x303/0x31b()
[24099.409341] Modules linked in: netconsole joydev evdev psmouse
ehci_pci ohci_hcd ehci_hcd xhci_hcd snd_hda_codec_idt
snd_hda_codec_hdmi snd_hda_intel snd_hda_codec r8169 mii brcmsmac
cordic brcmutil bcma bnep bluetooth
[24099.409427] CPU: 2 PID: 19049 Comm: btrfs-endio-wri Tainted: G
W 3.11.0 #1
[24099.409429] Hardware name: Hewlett-Packard HP Pavilion dv6 Notebook
PC/358B, BIOS F.21 09/13/2011
[24099.409432] 000000000000089e ffff880101b63ad8 ffffffff817c33f6
000000000000008d
[24099.409439] 0000000000000000 ffff880101b63b18 ffffffff8106b44d
0000160000000000
[24099.409499] ffffffff812a9588 0000000000000041 ffff88016c5b2240
ffff88012eac2500
[24099.409505] Call Trace:
[24099.409508] [<ffffffff817c33f6>] dump_stack+0x46/0x58
[24099.409511] [<ffffffff8106b44d>] warn_slowpath_common+0x7c/0x96
[24099.409623] [<ffffffff812a9588>] ? record_one_backref+0x303/0x31b
[24099.409626] [<ffffffff8106b47c>] warn_slowpath_null+0x15/0x17
[24099.409629] [<ffffffff812a9588>] record_one_backref+0x303/0x31b
[24099.409633] [<ffffffff812ede03>] ? ulist_free+0x1c/0x20
[24099.409636] [<ffffffff812ed7cc>] iterate_extent_inodes+0x148/0x1dd
[24099.409640] [<ffffffff812a9285>] ? btrfs_real_readdir+0x4b5/0x4b5
[24099.409643] [<ffffffff812a9285>] ? btrfs_real_readdir+0x4b5/0x4b5
[24099.409646] [<ffffffff812ed8e5>] iterate_inodes_from_logical+0x84/0x93
[24099.409650] [<ffffffff812a7d8d>] record_extent_backrefs+0x5c/0xa2
[24099.409653] [<ffffffff812b0054>] btrfs_finish_ordered_io+0x64c/0x788
[24099.409657] [<ffffffff81074db9>] ? call_timer_fn+0xe3/0xe3
[24099.409660] [<ffffffff812b01a0>] finish_ordered_fn+0x10/0x12
[24099.409721] [<ffffffff812ca206>] worker_loop+0x169/0x49b
[24099.409725] [<ffffffff812ca09d>] ? btrfs_queue_worker+0x27c/0x27c
[24099.409728] [<ffffffff8108549c>] kthread+0x88/0x90
[24099.409732] [<ffffffff81085414>] ?
kthread_freezable_should_stop+0x3e/0x3e
[24099.409735] [<ffffffff817d0aec>] ret_from_fork+0x7c/0xb0
[24099.409739] [<ffffffff81085414>] ?
kthread_freezable_should_stop+0x3e/0x3e
[24099.409742] ---[ end trace d8a7321b53f5ba9b ]---
[24099.540543] ------------[ cut here ]------------
[24099.540567] WARNING: CPU: 3 PID: 17571 at fs/btrfs/inode.c:2206
record_one_backref+0x303/0x31b()
[24099.540570] Modules linked in: netconsole joydev evdev psmouse
ehci_pci ohci_hcd ehci_hcd xhci_hcd snd_hda_codec_idt
snd_hda_codec_hdmi snd_hda_intel snd_hda_codec r8169 mii brcmsmac
cordic brcmutil bcma bnep bluetooth
[24099.540606] CPU: 3 PID: 17571 Comm: btrfs-endio-wri Tainted: G
W 3.11.0 #1
[24099.540608] Hardware name: Hewlett-Packard HP Pavilion dv6 Notebook
PC/358B, BIOS F.21 09/13/2011
[24099.540613] 000000000000089e ffff880167783ad8 ffffffff817c33f6
00000000000000f3
[24099.540625] 0000000000000000 ffff880167783b18 ffffffff8106b44d
0000160000000000
[24099.540659] ffffffff812a9588 0000000000000092 ffff88019843ccf0
ffff880115643b00
[24099.540669] Call Trace:
[24099.540687] [<ffffffff817c33f6>] dump_stack+0x46/0x58
[24099.540695] [<ffffffff8106b44d>] warn_slowpath_common+0x7c/0x96
[24099.540700] [<ffffffff812a9588>] ? record_one_backref+0x303/0x31b
[24099.540704] [<ffffffff8106b47c>] warn_slowpath_null+0x15/0x17
[24099.540709] [<ffffffff812a9588>] record_one_backref+0x303/0x31b
[24099.540716] [<ffffffff812ede03>] ? ulist_free+0x1c/0x20
[24099.540721] [<ffffffff812ed7cc>] iterate_extent_inodes+0x148/0x1dd
[24099.540725] [<ffffffff812a9285>] ? btrfs_real_readdir+0x4b5/0x4b5
[24099.540729] [<ffffffff812a9285>] ? btrfs_real_readdir+0x4b5/0x4b5
[24099.540742] [<ffffffff812ed8e5>] iterate_inodes_from_logical+0x84/0x93
[24099.540746] [<ffffffff812a7d8d>] record_extent_backrefs+0x5c/0xa2
[24099.540752] [<ffffffff812b0054>] btrfs_finish_ordered_io+0x64c/0x788
[24099.540757] [<ffffffff81074db9>] ? call_timer_fn+0xe3/0xe3
[24099.540761] [<ffffffff812b01a0>] finish_ordered_fn+0x10/0x12
[24099.540765] [<ffffffff812ca206>] worker_loop+0x169/0x49b
[24099.540769] [<ffffffff812ca09d>] ? btrfs_queue_worker+0x27c/0x27c
[24099.540774] [<ffffffff8108549c>] kthread+0x88/0x90
[24099.540779] [<ffffffff81085414>] ?
kthread_freezable_should_stop+0x3e/0x3e
[24099.540785] [<ffffffff817d0aec>] ret_from_fork+0x7c/0xb0
[24099.540789] [<ffffffff81085414>] ?
kthread_freezable_should_stop+0x3e/0x3e
[24099.540793] ---[ end trace d8a7321b53f5ba9c ]---
[24249.404615] INFO: rcu_sched detected stalls on CPUs/tasks: {}
(detected by 1, t=15002 jiffies, g=2188820, c=2188819, q=86)
[24249.404637] INFO: Stall ended before state dump start
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