> What does btrfs-show-super /dev/sda5 list as output for incompat_flags ?
incompat_flags 0x161
( MIXED_BACKREF |
BIG_METADATA |
EXTENDED_IREF |
SKINNY_METADATA )
> It would be much better if you can provide some info about the operations you
> are doing when the bug is triggered. This should help us to reproduce the bug.
I use the partition as a target for snapsync, a tool that basically
synchronizes snapshots made by snapper into a different (local) drive.
snapsync only does three operations on /dev/sda5:
- btrfs receive
- btrfs subvolume delete
- btrfs subvolume sync (done just after either a receive, or after
possibly many deletes)
These operations are done serially. The only concurrency would be on
the sending filesystem, as snapper and snapsync are not synchronized.
It is therefore possible that snapper creates or deletes snapshots
while snapsync is sending some, including deleting the very snapshot
that snapsync is currently sending.
> Would you please try 4.4-rc kernel and see if it still triggers the bug?
I tried again this morning and I could not trigger the bug on 4.1.15.
The only thing that involved /dev/sda5 I did in the meantime was to
boot on a 4.3.3 kernel and mount /dev/sda5 - not doing any other
operations - and *then* reboot on 4.1.15 to try to trigger the bug
again. The partition was unmounted and unused since yesterday. The
only difference I can see with the situation yesterday is that I did
not run snapsync at boot, but manually (I obviously disabled snapsync
on boot since it was making my kernel freeze)
Even though I don't get any kernel message, btrfs check still reports
the 'type mismatch' errors.
Sylvain
2016-01-04 23:18 GMT-02:00 Qu Wenruo <quwen...@cn.fujitsu.com>:
>
>
> Sylvain Joyeux wrote on 2016/01/04 17:25 -0200:
>>
>> I currently have a btrfs partition that, when mounted, ends up
>> freezing my system. The only error I get when running btrfs check on
>> it is a whole lot of "bad extent ... type mismatch with chunk"
>>
>> I've added the patch https://patchwork.kernel.org/patch/7687611/ on
>> top of btrfs-progs v4.3.1 (
>> 7c3394ed9ef2063a7256d4bc078a485b6f826bc5), with no change.
>>
>> dmesg reports first the following message twice
>>
>> 13:29:09 kernel: ------------[ cut here ]------------
>> 13:29:09 kernel: WARNING: CPU: 0 PID: 6 at
>> /home/kernel/COD/linux/fs/btrfs/extent-tree.c:6226
>> __btrfs_free_extent+0x83b/0xc40 [btrfs]()
>> 13:29:09 kernel: Modules linked in: binfmt_misc cmac rfcomm bnep
>> bbswitch(OE) nls_iso8859_1 arc4 intel_rapl iosf_mbi
>> x86_pkg_temp_thermal intel_powerclamp coretemp dm_multipath
>> snd_hda_codec_realtek snd_hda_codec_hdmi scsi_dh snd_hda_codec_generic
>> kvm_intel kvm snd_hda_intel snd_hda_controller crct10dif_pclmul
>> crc32_pclmul iwlmvm snd_hda_codec snd_hda_core aesni_intel mac80211
>> aes_x86_64 lrw gf128mul glue_helper ablk_helper uvcvideo cryptd
>> snd_hwdep videobuf2_vmalloc videobuf2_memops snd_seq_midi snd_pcm
>> videobuf2_core snd_seq_midi_event v4l2_common videodev snd_rawmidi
>> serio_raw joydev media iwlwifi snd_seq thinkpad_acpi snd_seq_device
>> nvram btusb rtsx_pci_ms snd_timer cfg80211 btbcm btintel memstick
>> lpc_ich bluetooth snd soundcore mei_me mei shpchp ie31200_edac
>> edac_core mac_hid intel_rst parport_pc
>> 13:29:09 kernel: ppdev lp parport autofs4 btrfs raid10 raid456
>> async_raid6_recov async_memcpy async_pq async_xor async_tx xor
>> raid6_pq raid1 raid0 multipath linear hid_generic usbhid hid ses
>> enclosure uas usb_storage rtsx_pci_sdmmc i915 i2c_algo_bit
>> drm_kms_helper e1000e psmouse ahci drm ptp rtsx_pci libahci pps_core
>> wmi video
>> 13:29:09 kernel: CPU: 0 PID: 6 Comm: kworker/u16:0 Tainted: G
>> OE 4.1.15-040115-generic #201512150136
>> 13:29:09 kernel: Hardware name: LENOVO 20ANCTO1WW/20ANCTO1WW, BIOS
>> GLET81WW (2.35 ) 09/10/2015
>> 13:29:09 kernel: Workqueue: btrfs-extent-refs btrfs_extent_refs_helper
>> [btrfs]
>> 13:29:09 kernel: ffffffffc03e1478 ffff88042beaba68 ffffffff817e3f7c
>> 0000000000000007
>> 13:29:09 kernel: 0000000000000000 ffff88042beabaa8 ffffffff81079b8a
>> 000000001c098000
>> 13:29:09 kernel: 0000000c0a108000 ffff88042bfb6000 ffff8803fc0aa1b0
>> 00000000fffffffe
>> 13:29:09 kernel: Call Trace:
>> 13:29:09 kernel: [<ffffffff817e3f7c>] dump_stack+0x45/0x57
>> 13:29:09 kernel: [<ffffffff81079b8a>] warn_slowpath_common+0x8a/0xc0
>> 13:29:09 kernel: [<ffffffff81079c7a>] warn_slowpath_null+0x1a/0x20
>> 13:29:09 kernel: [<ffffffffc03449ab>] __btrfs_free_extent+0x83b/0xc40
>> [btrfs]
>> 13:29:09 kernel: [<ffffffff811e19a7>] ? __slab_free+0xa7/0x2b0
>> 13:29:09 kernel: [<ffffffffc0349687>]
>> __btrfs_run_delayed_refs+0x9c7/0x1260 [btrfs]
>> 13:29:09 kernel: [<ffffffff811e19a7>] ? __slab_free+0xa7/0x2b0
>> 13:29:09 kernel: [<ffffffffc035e279>] ?
>> join_transaction.isra.13+0x129/0x420 [btrfs]
>> 13:29:09 kernel: [<ffffffffc034e303>]
>> btrfs_run_delayed_refs.part.68+0x73/0x270 [btrfs]
>> 13:29:09 kernel: [<ffffffffc034e5bc>] delayed_ref_async_start+0x8c/0xb0
>> [btrfs]
>> 13:29:09 kernel: [<ffffffffc0390cea>] btrfs_scrubnc_helper+0xca/0x2b0
>> [btrfs]
>
>
> Seems to be a bug related to delayed refs and scrub.
>
> Although your 4.1 is unaffected by the delayed ref regression introduced in
> 4.2, but I'm afraid there may be some fix in recent kernels related to
> scrub/delayed ref.
>
> Would you please try 4.4-rc kernel and see if it still triggers the bug?
>
> And, it would be much better if you can provide some info about the
> operations you are doing when the bug is triggered.
> This should help us to reproduce the bug.
>
> Thanks,
> Qu
>
>> 13:29:09 kernel: [<ffffffffc0390efe>] btrfs_extent_refs_helper+0xe/0x10
>> [btrfs]
>> 13:29:09 kernel: [<ffffffff81093053>] process_one_work+0x163/0x4c0
>> 13:29:09 kernel: [<ffffffff81093408>] worker_thread+0x58/0x590
>> 13:29:09 kernel: [<ffffffff810933b0>] ? process_one_work+0x4c0/0x4c0
>> 13:29:09 kernel: [<ffffffff81099649>] kthread+0xc9/0xe0
>> 13:29:09 kernel: [<ffffffff81099580>] ?
>> kthread_create_on_node+0x180/0x180
>> 13:29:09 kernel: [<ffffffff817eb4e2>] ret_from_fork+0x42/0x70
>> 13:29:09 kernel: [<ffffffff81099580>] ?
>> kthread_create_on_node+0x180/0x180
>> 13:29:09 kernel: ---[ end trace 04d0bdb5f352a0f1 ]---
>> 13:29:09 kernel: BTRFS info (device sda5): leaf 51903889408 total ptrs
>> 223 free space 2845
>> 13:29:09 kernel: item 0 key (51707002880 169 0) itemoff 16250
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51698155520
>> 13:29:09 kernel: item 1 key (51707019264 169 0) itemoff 16217
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51698155520
>> 13:29:09 kernel: item 2 key (51707035648 169 0) itemoff 16184
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 3 key (51707052032 169 0) itemoff 16151
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2923 flags 2
>> 13:29:09 kernel: tree block backref root 7
>> 13:29:09 kernel: item 4 key (51707068416 169 0) itemoff 16118
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2923 flags 2
>> 13:29:09 kernel: tree block backref root 7
>> 13:29:09 kernel: item 5 key (51707084800 169 0) itemoff 16076
>> itemsize 42
>> 13:29:09 kernel: extent refs 2 gen 2827 flags 258
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: shared block backref parent 83540770816
>> 13:29:09 kernel: item 6 key (51707101184 169 0) itemoff 16043
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51698155520
>> 13:29:09 kernel: item 7 key (51707117568 169 0) itemoff 16010
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51698155520
>> 13:29:09 kernel: item 8 key (51707133952 169 0) itemoff 15968
>> itemsize 42
>> 13:29:09 kernel: extent refs 2 gen 2827 flags 258
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: shared block backref parent 83540770816
>> 13:29:09 kernel: item 9 key (51707150336 169 0) itemoff 15926
>> itemsize 42
>> 13:29:09 kernel: extent refs 2 gen 2827 flags 258
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: shared block backref parent 83540770816
>> 13:29:09 kernel: item 10 key (51707166720 169 0) itemoff 15893
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51698155520
>> 13:29:09 kernel: item 11 key (51707183104 169 0) itemoff 15860
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51698155520
>> 13:29:09 kernel: item 12 key (51707199488 169 0) itemoff 15827
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51698155520
>> 13:29:09 kernel: item 13 key (51707215872 169 0) itemoff 15794
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51698155520
>> 13:29:09 kernel: item 14 key (51707232256 169 0) itemoff 15761
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51698155520
>> 13:29:09 kernel: item 15 key (51707248640 169 0) itemoff 15728
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 76 flags 258
>> 13:29:09 kernel: shared block backref parent 51967885312
>> 13:29:09 kernel: item 16 key (51707265024 169 0) itemoff 15695
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 76 flags 258
>> 13:29:09 kernel: shared block backref parent 51967885312
>> 13:29:09 kernel: item 17 key (51707281408 169 0) itemoff 15662
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51819577344
>> 13:29:09 kernel: item 18 key (51707297792 169 0) itemoff 15629
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51819577344
>> 13:29:09 kernel: item 19 key (51707314176 169 1) itemoff 15533
>> itemsize 96
>> 13:29:09 kernel: extent refs 8 gen 2963 flags 258
>> 13:29:09 kernel: tree block backref root 787
>> 13:29:09 kernel: tree block backref root 774
>> 13:29:09 kernel: tree block backref root 773
>> 13:29:09 kernel: tree block backref root 770
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 766
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: item 20 key (51707330560 169 0) itemoff 15500
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83375194112
>> 13:29:09 kernel: item 21 key (51707346944 169 0) itemoff 15467
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 22 key (51707363328 169 0) itemoff 15434
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 23 key (51707379712 169 0) itemoff 15401
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 76 flags 258
>> 13:29:09 kernel: shared block backref parent 51967885312
>> 13:29:09 kernel: item 24 key (51707396096 169 0) itemoff 15368
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 25 key (51707412480 169 0) itemoff 15335
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 76 flags 258
>> 13:29:09 kernel: shared block backref parent 51967885312
>> 13:29:09 kernel: item 26 key (51707428864 169 0) itemoff 15302
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 27 key (51707445248 169 0) itemoff 15269
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 28 key (51707461632 169 0) itemoff 15236
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 29 key (51707478016 169 0) itemoff 15203
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 30 key (51707494400 169 0) itemoff 15170
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 31 key (51707510784 169 0) itemoff 15137
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 32 key (51707527168 169 0) itemoff 15104
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 33 key (51707543552 169 0) itemoff 15071
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 34 key (51707559936 169 0) itemoff 15038
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 35 key (51707576320 169 0) itemoff 15005
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 36 key (51707592704 169 0) itemoff 14972
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83375194112
>> 13:29:09 kernel: item 37 key (51707609088 169 0) itemoff 14939
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83375194112
>> 13:29:09 kernel: item 38 key (51707625472 169 0) itemoff 14906
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 39 key (51707641856 169 0) itemoff 14873
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 40 key (51707658240 169 0) itemoff 14840
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51819577344
>> 13:29:09 kernel: item 41 key (51707674624 169 0) itemoff 14807
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 42 key (51707691008 169 0) itemoff 14774
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 43 key (51707707392 169 0) itemoff 14741
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 44 key (51707723776 169 0) itemoff 14708
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 45 key (51707740160 169 0) itemoff 14675
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 46 key (51707756544 169 0) itemoff 14642
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 47 key (51707772928 169 0) itemoff 14609
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 48 key (51707789312 169 0) itemoff 14576
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 49 key (51707805696 169 0) itemoff 14543
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 50 key (51707822080 169 0) itemoff 14483
>> itemsize 60
>> 13:29:09 kernel: extent refs 4 gen 2433 flags 258
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: tree block backref root 761
>> 13:29:09 kernel: item 51 key (51707838464 169 0) itemoff 14450
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 52 key (51707854848 169 0) itemoff 14417
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 53 key (51707871232 169 0) itemoff 14384
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 54 key (51707887616 169 0) itemoff 14351
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 55 key (51707904000 169 0) itemoff 14318
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 56 key (51707920384 169 0) itemoff 14285
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 57 key (51707936768 169 0) itemoff 14252
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 58 key (51707953152 169 0) itemoff 14219
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83445514240
>> 13:29:09 kernel: item 59 key (51707969536 169 0) itemoff 14186
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 60 key (51707985920 169 0) itemoff 14153
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83464437760
>> 13:29:09 kernel: item 61 key (51708002304 169 0) itemoff 14120
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83464437760
>> 13:29:09 kernel: item 62 key (51708018688 169 0) itemoff 14087
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83464437760
>> 13:29:09 kernel: item 63 key (51708035072 169 0) itemoff 14054
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 64 key (51708051456 169 0) itemoff 14012
>> itemsize 42
>> 13:29:09 kernel: extent refs 2 gen 2461 flags 258
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: shared block backref parent 83540770816
>> 13:29:09 kernel: item 65 key (51708067840 169 0) itemoff 13979
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 66 key (51708084224 169 0) itemoff 13946
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 67 key (51708100608 169 0) itemoff 13913
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 68 key (51708116992 169 0) itemoff 13880
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83464437760
>> 13:29:09 kernel: item 69 key (51708133376 169 0) itemoff 13847
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83464437760
>> 13:29:09 kernel: item 70 key (51708149760 169 0) itemoff 13814
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 71 key (51708166144 169 0) itemoff 13781
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83464437760
>> 13:29:09 kernel: item 72 key (51708182528 169 0) itemoff 13748
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 73 key (51708198912 169 0) itemoff 13715
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 74 key (51708215296 169 0) itemoff 13682
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 75 key (51708231680 169 0) itemoff 13649
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83502923776
>> 13:29:09 kernel: item 76 key (51708248064 169 0) itemoff 13616
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 77 key (51708264448 169 0) itemoff 13583
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 78 key (51708280832 169 0) itemoff 13550
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83566739456
>> 13:29:09 kernel: item 79 key (51708297216 169 0) itemoff 13517
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 83566739456
>> 13:29:09 kernel: item 80 key (51708313600 169 0) itemoff 13484
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2923 flags 2
>> 13:29:09 kernel: tree block backref root 2
>> 13:29:09 kernel: item 81 key (51708329984 169 0) itemoff 13451
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 82 key (51708346368 169 0) itemoff 13418
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 83 key (51708362752 169 0) itemoff 13385
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 97898102784
>> 13:29:09 kernel: item 84 key (51708379136 169 0) itemoff 13325
>> itemsize 60
>> 13:29:09 kernel: extent refs 4 gen 2433 flags 258
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: tree block backref root 761
>> 13:29:09 kernel: item 85 key (51708395520 169 0) itemoff 13292
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 86 key (51708411904 169 0) itemoff 13259
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 87 key (51708428288 169 0) itemoff 13226
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 97898102784
>> 13:29:09 kernel: item 88 key (51708444672 169 0) itemoff 13193
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 89 key (51708461056 169 1) itemoff 13097
>> itemsize 96
>> 13:29:09 kernel: extent refs 8 gen 2827 flags 258
>> 13:29:09 kernel: tree block backref root 787
>> 13:29:09 kernel: tree block backref root 774
>> 13:29:09 kernel: tree block backref root 773
>> 13:29:09 kernel: tree block backref root 770
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 766
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: item 90 key (51708477440 169 0) itemoff 13064
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 91 key (51708493824 169 0) itemoff 13031
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 92 key (51708510208 169 0) itemoff 12989
>> itemsize 42
>> 13:29:09 kernel: extent refs 2 gen 2461 flags 258
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: shared block backref parent 83540770816
>> 13:29:09 kernel: item 93 key (51708526592 169 0) itemoff 12956
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 94 key (51708542976 169 0) itemoff 12923
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 95 key (51708559360 169 0) itemoff 12890
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 96 key (51708575744 169 0) itemoff 12857
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 97 key (51708592128 169 0) itemoff 12824
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 98 key (51708608512 169 0) itemoff 12791
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 99 key (51708624896 169 0) itemoff 12758
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 100 key (51708641280 169 0) itemoff
>> 12725 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 101 key (51708657664 169 0) itemoff
>> 12692 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 102 key (51708674048 169 0) itemoff
>> 12659 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 103 key (51708690432 169 0) itemoff
>> 12626 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 2
>> 13:29:09 kernel: tree block backref root 7
>> 13:29:09 kernel: item 104 key (51708706816 169 0) itemoff
>> 12593 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 105 key (51708723200 169 0) itemoff
>> 12560 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 106 key (51708739584 169 0) itemoff
>> 12527 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 107 key (51708755968 169 0) itemoff
>> 12494 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 108 key (51708772352 169 0) itemoff
>> 12461 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 109 key (51708788736 169 0) itemoff
>> 12428 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 110 key (51708805120 169 0) itemoff
>> 12395 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 111 key (51708821504 169 0) itemoff
>> 12362 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 112 key (51708837888 169 0) itemoff
>> 12329 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 113 key (51708854272 169 0) itemoff
>> 12296 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 114 key (51708870656 169 0) itemoff
>> 12263 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 115 key (51708887040 169 0) itemoff
>> 12230 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 116 key (51708903424 169 0) itemoff
>> 12197 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 117 key (51708919808 169 0) itemoff
>> 12164 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 118 key (51708936192 169 0) itemoff
>> 12131 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 119 key (51708952576 169 0) itemoff
>> 12098 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 76 flags 258
>> 13:29:09 kernel: shared block backref parent 51967885312
>> 13:29:09 kernel: item 120 key (51708968960 169 0) itemoff
>> 12065 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 121 key (51708985344 169 0) itemoff
>> 12032 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 122 key (51709001728 169 0) itemoff
>> 11999 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 123 key (51709018112 169 0) itemoff
>> 11966 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 124 key (51709034496 169 0) itemoff
>> 11933 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 125 key (51709050880 169 0) itemoff
>> 11900 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 2
>> 13:29:09 kernel: tree block backref root 7
>> 13:29:09 kernel: item 126 key (51709067264 169 0) itemoff
>> 11867 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 127 key (51709083648 169 0) itemoff
>> 11834 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 128 key (51709100032 169 0) itemoff
>> 11801 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2523 flags 2
>> 13:29:09 kernel: tree block backref root 7
>> 13:29:09 kernel: item 129 key (51709116416 169 0) itemoff
>> 11768 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 76 flags 258
>> 13:29:09 kernel: shared block backref parent 51967885312
>> 13:29:09 kernel: item 130 key (51709132800 169 0) itemoff
>> 11735 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 131 key (51709149184 169 0) itemoff
>> 11702 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 132 key (51709165568 169 0) itemoff
>> 11669 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 133 key (51709181952 169 0) itemoff
>> 11636 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 2
>> 13:29:09 kernel: tree block backref root 7
>> 13:29:09 kernel: item 134 key (51709198336 169 0) itemoff
>> 11603 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 135 key (51709214720 169 0) itemoff
>> 11570 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 136 key (51709231104 169 0) itemoff
>> 11537 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 137 key (51709247488 169 0) itemoff
>> 11504 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 138 key (51709263872 169 0) itemoff
>> 11471 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 139 key (51709280256 169 0) itemoff
>> 11438 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 76 flags 258
>> 13:29:09 kernel: shared block backref parent 51967885312
>> 13:29:09 kernel: item 140 key (51709296640 169 0) itemoff
>> 11405 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 141 key (51709313024 169 0) itemoff
>> 11372 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 76 flags 258
>> 13:29:09 kernel: shared block backref parent 51967885312
>> 13:29:09 kernel: item 142 key (51709329408 169 0) itemoff
>> 11285 itemsize 87
>> 13:29:09 kernel: extent refs 7 gen 2154 flags 258
>> 13:29:09 kernel: tree block backref root 787
>> 13:29:09 kernel: tree block backref root 774
>> 13:29:09 kernel: tree block backref root 773
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 766
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: item 143 key (51709345792 169 0) itemoff
>> 11252 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 144 key (51709362176 169 0) itemoff
>> 11219 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 145 key (51709378560 169 0) itemoff
>> 11186 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 146 key (51709394944 169 0) itemoff
>> 11153 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 147 key (51709411328 169 0) itemoff
>> 11120 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 148 key (51709427712 169 0) itemoff
>> 11087 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 149 key (51709444096 169 0) itemoff
>> 11054 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 150 key (51709460480 169 0) itemoff
>> 11021 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 151 key (51709476864 169 0) itemoff
>> 10988 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 152 key (51709493248 169 0) itemoff
>> 10955 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 153 key (51709509632 169 0) itemoff
>> 10922 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 154 key (51709526016 169 0) itemoff
>> 10889 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 155 key (51709542400 169 0) itemoff
>> 10856 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 156 key (51709558784 169 0) itemoff
>> 10823 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 157 key (51709575168 169 0) itemoff
>> 10790 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51826933760
>> 13:29:09 kernel: item 158 key (51709591552 169 0) itemoff
>> 10757 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 159 key (51709607936 169 0) itemoff
>> 10724 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51708461056
>> 13:29:09 kernel: item 160 key (51709624320 169 1) itemoff
>> 10628 itemsize 96
>> 13:29:09 kernel: extent refs 8 gen 2827 flags 258
>> 13:29:09 kernel: tree block backref root 787
>> 13:29:09 kernel: tree block backref root 774
>> 13:29:09 kernel: tree block backref root 773
>> 13:29:09 kernel: tree block backref root 770
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 766
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: item 161 key (51709640704 169 0) itemoff
>> 10595 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51709624320
>> 13:29:09 kernel: item 162 key (51709657088 169 0) itemoff
>> 10562 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51709624320
>> 13:29:09 kernel: item 163 key (51709673472 169 0) itemoff
>> 10529 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51709624320
>> 13:29:09 kernel: item 164 key (51709689856 169 0) itemoff
>> 10496 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51826933760
>> 13:29:09 kernel: item 165 key (51709706240 169 0) itemoff
>> 10463 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51709624320
>> 13:29:09 kernel: item 166 key (51709722624 169 0) itemoff
>> 10430 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51826933760
>> 13:29:09 kernel: item 167 key (51709739008 169 0) itemoff
>> 10397 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2827 flags 258
>> 13:29:09 kernel: shared block backref parent 51709624320
>> 13:29:09 kernel: item 168 key (51709755392 169 0) itemoff
>> 10364 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 169 key (51709771776 169 0) itemoff
>> 10331 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 170 key (51709788160 169 0) itemoff
>> 10298 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51826933760
>> 13:29:09 kernel: item 171 key (51709804544 169 0) itemoff
>> 10265 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 172 key (51709820928 169 0) itemoff
>> 10232 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 173 key (51709837312 169 0) itemoff
>> 10199 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 174 key (51709853696 169 0) itemoff
>> 10166 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 175 key (51709870080 169 0) itemoff
>> 10133 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 176 key (51709886464 169 0) itemoff
>> 10100 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 177 key (51709902848 169 0) itemoff
>> 10067 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 178 key (51709919232 169 0) itemoff
>> 10034 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 179 key (51709935616 169 0) itemoff
>> 10001 itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 180 key (51709952000 169 0) itemoff 9968
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 181 key (51709968384 169 0) itemoff 9935
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 182 key (51709984768 169 0) itemoff 9902
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 183 key (51710001152 169 0) itemoff 9869
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 184 key (51710017536 169 0) itemoff 9836
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 185 key (51710033920 169 0) itemoff 9803
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 186 key (51710050304 169 0) itemoff 9770
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 187 key (51710066688 169 0) itemoff 9737
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 188 key (51710083072 169 0) itemoff 9704
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 189 key (51710099456 169 0) itemoff 9671
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 190 key (51710132224 169 0) itemoff 9638
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2461 flags 258
>> 13:29:09 kernel: shared block backref parent 52071596032
>> 13:29:09 kernel: item 191 key (51710148608 169 0) itemoff 9605
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 192 key (51710181376 169 0) itemoff 9572
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 2
>> 13:29:09 kernel: item 193 key (51710197760 169 0) itemoff 9539
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 194 key (51710214144 169 0) itemoff 9506
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 3100 flags 2
>> 13:29:09 kernel: tree block backref root 786
>> 13:29:09 kernel: item 195 key (51710230528 169 0) itemoff 9473
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 196 key (51710246912 169 0) itemoff 9413
>> itemsize 60
>> 13:29:09 kernel: extent refs 4 gen 2433 flags 258
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: tree block backref root 761
>> 13:29:09 kernel: item 197 key (51710263296 169 0) itemoff 9380
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 76 flags 258
>> 13:29:09 kernel: shared block backref parent 51967885312
>> 13:29:09 kernel: item 198 key (51710279680 169 0) itemoff 9347
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 76 flags 258
>> 13:29:09 kernel: shared block backref parent 51967885312
>> 13:29:09 kernel: item 199 key (51710296064 169 0) itemoff 9314
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 76 flags 258
>> 13:29:09 kernel: shared block backref parent 51967885312
>> 13:29:09 kernel: item 200 key (51710312448 169 0) itemoff 9254
>> itemsize 60
>> 13:29:09 kernel: extent refs 4 gen 2433 flags 258
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: tree block backref root 761
>> 13:29:09 kernel: item 201 key (51710328832 169 0) itemoff 9194
>> itemsize 60
>> 13:29:09 kernel: extent refs 4 gen 2433 flags 258
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: tree block backref root 761
>> 13:29:09 kernel: item 202 key (51710345216 169 0) itemoff 9134
>> itemsize 60
>> 13:29:09 kernel: extent refs 4 gen 2433 flags 258
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: tree block backref root 761
>> 13:29:09 kernel: item 203 key (51710361600 169 0) itemoff 9101
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 204 key (51710377984 169 0) itemoff 9068
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 205 key (51710394368 169 0) itemoff 9035
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51826933760
>> 13:29:09 kernel: item 206 key (51710410752 169 0) itemoff 9002
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 2963 flags 258
>> 13:29:09 kernel: shared block backref parent 51707314176
>> 13:29:09 kernel: item 207 key (51710427136 169 0) itemoff 8942
>> itemsize 60
>> 13:29:09 kernel: extent refs 4 gen 2433 flags 258
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: tree block backref root 761
>> 13:29:09 kernel: item 208 key (51710443520 169 0) itemoff 8909
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 209 key (51710459904 169 0) itemoff 8876
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 210 key (51710476288 169 0) itemoff 8843
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 211 key (51710492672 169 0) itemoff 8810
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 212 key (51710509056 169 0) itemoff 8750
>> itemsize 60
>> 13:29:09 kernel: extent refs 4 gen 2433 flags 258
>> 13:29:09 kernel: tree block backref root 769
>> 13:29:09 kernel: tree block backref root 765
>> 13:29:09 kernel: tree block backref root 762
>> 13:29:09 kernel: tree block backref root 761
>> 13:29:09 kernel: item 213 key (51710525440 169 0) itemoff 8717
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 214 key (51710541824 169 0) itemoff 8684
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 215 key (51710558208 169 0) itemoff 8651
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 216 key (51710574592 169 0) itemoff 8618
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 217 key (51710590976 169 0) itemoff 8585
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 218 key (51710607360 169 0) itemoff 8552
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 219 key (51710623744 169 0) itemoff 8519
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 220 key (51710640128 169 0) itemoff 8486
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 221 key (51710656512 169 0) itemoff 8453
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: item 222 key (51710672896 169 0) itemoff 8420
>> itemsize 33
>> 13:29:09 kernel: extent refs 1 gen 70 flags 258
>> 13:29:09 kernel: shared block backref parent 51824230400
>> 13:29:09 kernel: BTRFS error (device sda5): unable to find ref byte nr
>> 51708461056 parent 0 root 761 owner 1 offset 0
>> 13:29:09 kernel: ------------[ cut here ]------------
>>
>>
>> and then around 10 000 times the following message in less than 30s
>> (until I forcefully killed the program responsible)
>>
>> 13:29:09 kernel: WARNING: CPU: 0 PID: 6 at
>> /home/kernel/COD/linux/fs/btrfs/delayed-ref.c:438
>> btrfs_select_ref_head+0x11f/0x130 [btrfs]()
>> 13:29:09 kernel: Modules linked in: binfmt_misc cmac rfcomm bnep
>> bbswitch(OE) nls_iso8859_1 arc4 intel_rapl iosf_mbi
>> x86_pkg_temp_thermal intel_powerclamp coretemp dm_multipath
>> snd_hda_codec_realtek snd_hda_codec_hdmi scsi_dh snd_hda_codec_generic
>> kvm_intel kvm snd_hda_intel snd_hda_controller crct10dif_pclmul
>> crc32_pclmul iwlmvm snd_hda_codec snd_hda_core aesni_intel mac80211
>> aes_x86_64 lrw gf128mul glue_helper ablk_helper uvcvideo cryptd
>> snd_hwdep videobuf2_vmalloc videobuf2_memops snd_seq_midi snd_pcm
>> videobuf2_core snd_seq_midi_event v4l2_common videodev snd_rawmidi
>> serio_raw joydev media iwlwifi snd_seq thinkpad_acpi snd_seq_device
>> nvram btusb rtsx_pci_ms snd_timer cfg80211 btbcm btintel memstick
>> lpc_ich bluetooth snd soundcore mei_me mei shpchp ie31200_edac
>> edac_core mac_hid intel_rst parport_pc
>> 13:29:09 kernel: ppdev lp parport autofs4 btrfs raid10 raid456
>> async_raid6_recov async_memcpy async_pq async_xor async_tx xor
>> raid6_pq raid1 raid0 multipath linear hid_generic usbhid hid ses
>> enclosure uas usb_storage rtsx_pci_sdmmc i915 i2c_algo_bit
>> drm_kms_helper e1000e psmouse ahci drm ptp rtsx_pci libahci pps_core
>> wmi video
>> 13:29:09 kernel: CPU: 0 PID: 6 Comm: kworker/u16:0 Tainted: G W
>> OE 4.1.15-040115-generic #201512150136
>> 13:29:09 kernel: Hardware name: LENOVO 20ANCTO1WW/20ANCTO1WW, BIOS
>> GLET81WW (2.35 ) 09/10/2015
>> 13:29:09 kernel: Workqueue: btrfs-extent-refs btrfs_extent_refs_helper
>> [btrfs]
>> 13:29:09 kernel: ffffffffc03e4b48 ffff88042beabb48 ffffffff817e3f7c
>> 0000000000000007
>> 13:29:09 kernel: 0000000000000000 ffff88042beabb88 ffffffff81079b8a
>> ffff88042beabbc8
>> 13:29:09 kernel: ffff8800b0ff7aa0 ffff8804262e0168 0000000000000000
>> ffff8804262e0290
>> 13:29:09 kernel: Call Trace:
>> 13:29:09 kernel: [<ffffffff817e3f7c>] dump_stack+0x45/0x57
>> 13:29:09 kernel: [<ffffffff81079b8a>] warn_slowpath_common+0x8a/0xc0
>> 13:29:09 kernel: [<ffffffff81079c7a>] warn_slowpath_null+0x1a/0x20
>> 13:29:09 kernel: [<ffffffffc03ad38f>] btrfs_select_ref_head+0x11f/0x130
>> [btrfs]
>> 13:29:09 kernel: [<ffffffffc0348ec5>]
>> __btrfs_run_delayed_refs+0x205/0x1260 [btrfs]
>> 13:29:09 kernel: [<ffffffffc034e303>]
>> btrfs_run_delayed_refs.part.68+0x73/0x270 [btrfs]
>> 13:29:09 kernel: [<ffffffffc034e5bc>] delayed_ref_async_start+0x8c/0xb0
>> [btrfs]
>> 13:29:09 kernel: [<ffffffffc0390cea>] btrfs_scrubnc_helper+0xca/0x2b0
>> [btrfs]
>> 13:29:09 kernel: [<ffffffffc0390efe>] btrfs_extent_refs_helper+0xe/0x10
>> [btrfs]
>> 13:29:09 kernel: [<ffffffff81093053>] process_one_work+0x163/0x4c0
>> 13:29:09 kernel: [<ffffffff81093408>] worker_thread+0x58/0x590
>> 13:29:09 kernel: [<ffffffff810933b0>] ? process_one_work+0x4c0/0x4c0
>> 13:29:09 kernel: [<ffffffff81099649>] kthread+0xc9/0xe0
>> 13:29:09 kernel: [<ffffffff81099580>] ?
>> kthread_create_on_node+0x180/0x180
>> 13:29:09 kernel: [<ffffffff817eb4e2>] ret_from_fork+0x42/0x70
>> 13:29:09 kernel: [<ffffffff81099580>] ?
>> kthread_create_on_node+0x180/0x180
>> 13:29:09 kernel: ---[ end trace 04d0bdb5f352a0f5 ]---
>>
>> Regards,
>> Sylvain
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
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>>
>>
>
>
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