* kernel: BTRFS error (device dm-1): Missing references.
@ 2022-03-29 23:08 Dave T
2022-03-29 23:39 ` Dave T
0 siblings, 1 reply; 4+ messages in thread
From: Dave T @ 2022-03-29 23:08 UTC (permalink / raw)
To: Btrfs BTRFS
My systemd journal (log) is filled with the BTRFS error shown below.
I'm running a fully updated Arch Linux system on a ThinkPad with the
latest bios updates for that hardware.
BTRFS scrub reports no errors on the internal and external storage devices.
An online search did not return anything I found relevant, so I have
no idea what this message means or how serious it is.
Mar 29 17:46:15 archlinux kernel: ------------[ cut here ]------------
Mar 29 17:46:15 archlinux kernel: WARNING: CPU: 2 PID: 1424 at
fs/btrfs/extent-tree.c:232 btrfs_lookup_extent_info+0x3bf/0x3e0
[btrfs]
Mar 29 17:46:15 archlinux kernel: Modules linked in: rfcomm
rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc
fscache netfs cmac algif_hash algif_skcipher af_alg bnep snd_soc_skl
snd_soc_hdac_hda snd_hda_ext_core snd_hda_codec_hdmi snd_soc_sst_ipc
snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi intel_rapl_msr
snd_ctl_led snd_soc_core snd_compress snd_hda_codec_realtek ac97_bus
iTCO_wdt tps6598x snd_pcm_dmaengine snd_hda_codec_generic
intel_pmc_bxt ee1004 mei_pxp mei_hdcp typec snd_hda_intel
iTCO_vendor_support intel_rapl_common snd_intel_dspcfg iwlmvm
snd_intel_sdw_acpi snd_hda_codec mac80211 intel_tcc_cooling uvcvideo
snd_hda_core x86_pkg_temp_thermal intel_powerclamp videobuf2_vmalloc
libarc4 think_lmi btusb coretemp videobuf2_memops snd_hwdep rapl
intel_cstate intel_uncore iwlwifi pcspkr psmouse btrtl snd_pcm
cdc_mbim i2c_i801 videobuf2_v4l2 btbcm firmware_attributes_class
wmi_bmof intel_wmi_thunderbolt e1000e i2c_smbus snd_timer
videobuf2_common cdc_wdm mei_me intel_lpss_pci
Mar 29 17:46:15 archlinux kernel: btintel cdc_ncm cfg80211 intel_lpss
mei idma64 videodev bluetooth cdc_ether qcserial mc usbnet i915
ecdh_generic mii usb_wwan mousedev joydev crc16
intel_xhci_usb_role_switch ttm thinkpad_acpi roles intel_pch_thermal
intel_gtt ledtrig_audio i2c_multi_instantiate platform_profile rfkill
snd soundcore acpi_pad mac_hid ipmi_devintf ipmi_msghandler
crypto_user fuse bpf_preload ip_tables x_tables ecb crypto_simd xts
btrfs blake2b_generic libcrc32c crc32c_generic xor raid6_pq
hid_multitouch usbhid uas usb_storage dm_crypt cbc encrypted_keys
dm_mod trusted asn1_encoder tee tpm rng_core rtsx_pci_sdmmc serio_raw
mmc_core atkbd libps2 crct10dif_pclmul crc32_pclmul crc32c_intel
ghash_clmulni_intel cryptd rtsx_pci xhci_pci xhci_pci_renesas wmi
i8042 video serio vfat fat
Mar 29 17:46:15 archlinux kernel: CPU: 2 PID: 1424 Comm: btrfs-cleaner
Tainted: G U W 5.16.16-arch1-1 #1
ea44c25f01916b44dd68de6a90ee2f4c9e51dcb4
Mar 29 17:46:15 archlinux kernel: Hardware name: LENOVO
20HNCTO1WW/20HNCTO1WW, BIOS R0IET64W (1.42 ) 05/27/2021
Mar 29 17:46:15 archlinux kernel: RIP:
0010:btrfs_lookup_extent_info+0x3bf/0x3e0 [btrfs]
Mar 29 17:46:15 archlinux kernel: Code: 08 0d 00 00 c7 44 24 14 00 00
00 00 48 89 44 24 08 e9 d0 fc ff ff 80 48 6a 0c e9 e3 fc ff ff 48 85
db 0f 85 61 ff ff ff 0f 0b <0f> 0b eb 82 b8 f4 ff ff ff eb aa e8 01 ef
38 db e9 3f 1c 0c 00 66
Mar 29 17:46:15 archlinux kernel: RSP: 0018:ffffba48014cfc50 EFLAGS: 00010246
Mar 29 17:46:15 archlinux kernel: RAX: 0000000000000000 RBX:
0000000000000000 RCX: 0000000000000000
Mar 29 17:46:15 archlinux kernel: RDX: 0000000000000000 RSI:
000000531c714000 RDI: ffff93640021b178
Mar 29 17:46:15 archlinux kernel: RBP: ffff9365d8a11ee0 R08:
0000000000000000 R09: ffff9365d8a11ee0
Mar 29 17:46:15 archlinux kernel: R10: 000145ce761ca360 R11:
0000000000000000 R12: ffff93640021b000
Mar 29 17:46:15 archlinux kernel: R13: ffff93640021b178 R14:
0000000000000000 R15: 000000531c714000
Mar 29 17:46:15 archlinux kernel: FS: 0000000000000000(0000)
GS:ffff936b1f500000(0000) knlGS:0000000000000000
Mar 29 17:46:15 archlinux kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Mar 29 17:46:15 archlinux kernel: CR2: 00007f448004a000 CR3:
000000055c810001 CR4: 00000000003706e0
Mar 29 17:46:15 archlinux kernel: DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Mar 29 17:46:15 archlinux kernel: DR3: 0000000000000000 DR6:
00000000fffe0ff0 DR7: 0000000000000400
Mar 29 17:46:15 archlinux kernel: Call Trace:
Mar 29 17:46:15 archlinux kernel: <TASK>
Mar 29 17:46:15 archlinux kernel: do_walk_down+0x171/0x690 [btrfs
0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
Mar 29 17:46:15 archlinux kernel: walk_down_tree+0xce/0x110 [btrfs
0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
Mar 29 17:46:15 archlinux kernel: btrfs_drop_snapshot+0x1de/0x830
[btrfs 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
Mar 29 17:46:15 archlinux kernel:
btrfs_clean_one_deleted_snapshot+0xe4/0x100 [btrfs
0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
Mar 29 17:46:15 archlinux kernel: cleaner_kthread+0xe5/0x130 [btrfs
0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
Mar 29 17:46:15 archlinux kernel: ? end_workqueue_bio+0xc0/0xc0
[btrfs 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
Mar 29 17:46:15 archlinux kernel: kthread+0x15c/0x180
Mar 29 17:46:15 archlinux kernel: ? set_kthread_struct+0x40/0x40
Mar 29 17:46:15 archlinux kernel: ret_from_fork+0x22/0x30
Mar 29 17:46:15 archlinux kernel: </TASK>
Mar 29 17:46:15 archlinux kernel: ---[ end trace bc332cefd9295579 ]---
Mar 29 17:46:15 archlinux kernel: BTRFS error (device dm-1): Missing references.
# btrfs scrub status /mnt/usb_hdd
UUID: <redacted>
Scrub started: Tue Mar 29 01:45:08 2022
Status: finished
Duration: 1:43:34
Total to scrub: 392.98GiB
Rate: 64.76MiB/s
Error summary: no errors found
# btrfs scrub status /
UUID: <redacted>
Scrub started: Tue Mar 29 03:33:08 2022
Status: finished
Duration: 0:02:42
Total to scrub: 59.40GiB
Rate: 318.16MiB/s
Error summary: no errors found
Here is an indication of how frequently the errors are reported in the logs:
Mar 29 17:44:12 kernel: BTRFS error (device dm-1): Missing references.
Mar 29 17:44:43 kernel: BTRFS error (device dm-1): Missing references.
Mar 29 17:45:14 kernel: BTRFS error (device dm-1): Missing references.
Mar 29 17:45:44 kernel: BTRFS error (device dm-1): Missing references.
It looks like it is reported every 30 seconds continuously, whether
the device is being actively used or is idle.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: kernel: BTRFS error (device dm-1): Missing references.
2022-03-29 23:08 kernel: BTRFS error (device dm-1): Missing references Dave T
@ 2022-03-29 23:39 ` Dave T
2022-03-30 0:58 ` Dave T
0 siblings, 1 reply; 4+ messages in thread
From: Dave T @ 2022-03-29 23:39 UTC (permalink / raw)
To: Btrfs BTRFS
On Tue, Mar 29, 2022 at 7:08 PM Dave T <davestechshop@gmail.com> wrote:
>
> My systemd journal (log) is filled with the BTRFS error shown below.
> I'm running a fully updated Arch Linux system on a ThinkPad with the
> latest bios updates for that hardware.
>
> BTRFS scrub reports no errors on the internal and external storage devices.
>
> An online search did not return anything I found relevant, so I have
> no idea what this message means or how serious it is.
>
> Mar 29 17:46:15 archlinux kernel: ------------[ cut here ]------------
> Mar 29 17:46:15 archlinux kernel: WARNING: CPU: 2 PID: 1424 at
> fs/btrfs/extent-tree.c:232 btrfs_lookup_extent_info+0x3bf/0x3e0
> [btrfs]
> Mar 29 17:46:15 archlinux kernel: Modules linked in: rfcomm
> rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc
> fscache netfs cmac algif_hash algif_skcipher af_alg bnep snd_soc_skl
> snd_soc_hdac_hda snd_hda_ext_core snd_hda_codec_hdmi snd_soc_sst_ipc
> snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi intel_rapl_msr
> snd_ctl_led snd_soc_core snd_compress snd_hda_codec_realtek ac97_bus
> iTCO_wdt tps6598x snd_pcm_dmaengine snd_hda_codec_generic
> intel_pmc_bxt ee1004 mei_pxp mei_hdcp typec snd_hda_intel
> iTCO_vendor_support intel_rapl_common snd_intel_dspcfg iwlmvm
> snd_intel_sdw_acpi snd_hda_codec mac80211 intel_tcc_cooling uvcvideo
> snd_hda_core x86_pkg_temp_thermal intel_powerclamp videobuf2_vmalloc
> libarc4 think_lmi btusb coretemp videobuf2_memops snd_hwdep rapl
> intel_cstate intel_uncore iwlwifi pcspkr psmouse btrtl snd_pcm
> cdc_mbim i2c_i801 videobuf2_v4l2 btbcm firmware_attributes_class
> wmi_bmof intel_wmi_thunderbolt e1000e i2c_smbus snd_timer
> videobuf2_common cdc_wdm mei_me intel_lpss_pci
> Mar 29 17:46:15 archlinux kernel: btintel cdc_ncm cfg80211 intel_lpss
> mei idma64 videodev bluetooth cdc_ether qcserial mc usbnet i915
> ecdh_generic mii usb_wwan mousedev joydev crc16
> intel_xhci_usb_role_switch ttm thinkpad_acpi roles intel_pch_thermal
> intel_gtt ledtrig_audio i2c_multi_instantiate platform_profile rfkill
> snd soundcore acpi_pad mac_hid ipmi_devintf ipmi_msghandler
> crypto_user fuse bpf_preload ip_tables x_tables ecb crypto_simd xts
> btrfs blake2b_generic libcrc32c crc32c_generic xor raid6_pq
> hid_multitouch usbhid uas usb_storage dm_crypt cbc encrypted_keys
> dm_mod trusted asn1_encoder tee tpm rng_core rtsx_pci_sdmmc serio_raw
> mmc_core atkbd libps2 crct10dif_pclmul crc32_pclmul crc32c_intel
> ghash_clmulni_intel cryptd rtsx_pci xhci_pci xhci_pci_renesas wmi
> i8042 video serio vfat fat
> Mar 29 17:46:15 archlinux kernel: CPU: 2 PID: 1424 Comm: btrfs-cleaner
> Tainted: G U W 5.16.16-arch1-1 #1
> ea44c25f01916b44dd68de6a90ee2f4c9e51dcb4
> Mar 29 17:46:15 archlinux kernel: Hardware name: LENOVO
> 20HNCTO1WW/20HNCTO1WW, BIOS R0IET64W (1.42 ) 05/27/2021
> Mar 29 17:46:15 archlinux kernel: RIP:
> 0010:btrfs_lookup_extent_info+0x3bf/0x3e0 [btrfs]
> Mar 29 17:46:15 archlinux kernel: Code: 08 0d 00 00 c7 44 24 14 00 00
> 00 00 48 89 44 24 08 e9 d0 fc ff ff 80 48 6a 0c e9 e3 fc ff ff 48 85
> db 0f 85 61 ff ff ff 0f 0b <0f> 0b eb 82 b8 f4 ff ff ff eb aa e8 01 ef
> 38 db e9 3f 1c 0c 00 66
> Mar 29 17:46:15 archlinux kernel: RSP: 0018:ffffba48014cfc50 EFLAGS: 00010246
> Mar 29 17:46:15 archlinux kernel: RAX: 0000000000000000 RBX:
> 0000000000000000 RCX: 0000000000000000
> Mar 29 17:46:15 archlinux kernel: RDX: 0000000000000000 RSI:
> 000000531c714000 RDI: ffff93640021b178
> Mar 29 17:46:15 archlinux kernel: RBP: ffff9365d8a11ee0 R08:
> 0000000000000000 R09: ffff9365d8a11ee0
> Mar 29 17:46:15 archlinux kernel: R10: 000145ce761ca360 R11:
> 0000000000000000 R12: ffff93640021b000
> Mar 29 17:46:15 archlinux kernel: R13: ffff93640021b178 R14:
> 0000000000000000 R15: 000000531c714000
> Mar 29 17:46:15 archlinux kernel: FS: 0000000000000000(0000)
> GS:ffff936b1f500000(0000) knlGS:0000000000000000
> Mar 29 17:46:15 archlinux kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
> 0000000080050033
> Mar 29 17:46:15 archlinux kernel: CR2: 00007f448004a000 CR3:
> 000000055c810001 CR4: 00000000003706e0
> Mar 29 17:46:15 archlinux kernel: DR0: 0000000000000000 DR1:
> 0000000000000000 DR2: 0000000000000000
> Mar 29 17:46:15 archlinux kernel: DR3: 0000000000000000 DR6:
> 00000000fffe0ff0 DR7: 0000000000000400
> Mar 29 17:46:15 archlinux kernel: Call Trace:
> Mar 29 17:46:15 archlinux kernel: <TASK>
> Mar 29 17:46:15 archlinux kernel: do_walk_down+0x171/0x690 [btrfs
> 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> Mar 29 17:46:15 archlinux kernel: walk_down_tree+0xce/0x110 [btrfs
> 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> Mar 29 17:46:15 archlinux kernel: btrfs_drop_snapshot+0x1de/0x830
> [btrfs 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> Mar 29 17:46:15 archlinux kernel:
> btrfs_clean_one_deleted_snapshot+0xe4/0x100 [btrfs
> 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> Mar 29 17:46:15 archlinux kernel: cleaner_kthread+0xe5/0x130 [btrfs
> 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> Mar 29 17:46:15 archlinux kernel: ? end_workqueue_bio+0xc0/0xc0
> [btrfs 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> Mar 29 17:46:15 archlinux kernel: kthread+0x15c/0x180
> Mar 29 17:46:15 archlinux kernel: ? set_kthread_struct+0x40/0x40
> Mar 29 17:46:15 archlinux kernel: ret_from_fork+0x22/0x30
> Mar 29 17:46:15 archlinux kernel: </TASK>
> Mar 29 17:46:15 archlinux kernel: ---[ end trace bc332cefd9295579 ]---
> Mar 29 17:46:15 archlinux kernel: BTRFS error (device dm-1): Missing references.
>
>
> # btrfs scrub status /mnt/usb_hdd
> UUID: <redacted>
> Scrub started: Tue Mar 29 01:45:08 2022
> Status: finished
> Duration: 1:43:34
> Total to scrub: 392.98GiB
> Rate: 64.76MiB/s
> Error summary: no errors found
>
>
> # btrfs scrub status /
> UUID: <redacted>
> Scrub started: Tue Mar 29 03:33:08 2022
> Status: finished
> Duration: 0:02:42
> Total to scrub: 59.40GiB
> Rate: 318.16MiB/s
> Error summary: no errors found
>
> Here is an indication of how frequently the errors are reported in the logs:
>
> Mar 29 17:44:12 kernel: BTRFS error (device dm-1): Missing references.
> Mar 29 17:44:43 kernel: BTRFS error (device dm-1): Missing references.
> Mar 29 17:45:14 kernel: BTRFS error (device dm-1): Missing references.
> Mar 29 17:45:44 kernel: BTRFS error (device dm-1): Missing references.
>
> It looks like it is reported every 30 seconds continuously, whether
> the device is being actively used or is idle.
adding info to the above post:
device dm-1 is my usb-attached HDD (WD Elements).
It contains 400 snapshots. This large number of snapshots has not
presented any problems in the past because it is a backup disk only.
Every 30 seconds the message contains the same btrfs UUID values, like
this example:
btrfs_clean_one_deleted_snapshot+0xe4/0x100 [btrfs
0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
The logs are always for btrfs 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04 only.
I'm using btrbk to create snapshots. I see that the last one that was
sent to the USB HDD is listed as "incomplete" by btrbk.
Any suggestions for tracking this down and resolving it?
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: kernel: BTRFS error (device dm-1): Missing references.
2022-03-29 23:39 ` Dave T
@ 2022-03-30 0:58 ` Dave T
2022-03-30 2:32 ` Dave T
0 siblings, 1 reply; 4+ messages in thread
From: Dave T @ 2022-03-30 0:58 UTC (permalink / raw)
To: Btrfs BTRFS
On Tue, Mar 29, 2022 at 7:39 PM Dave T <davestechshop@gmail.com> wrote:
>
> On Tue, Mar 29, 2022 at 7:08 PM Dave T <davestechshop@gmail.com> wrote:
> >
> > My systemd journal (log) is filled with the BTRFS error shown below.
> > I'm running a fully updated Arch Linux system on a ThinkPad with the
> > latest bios updates for that hardware.
> >
> > BTRFS scrub reports no errors on the internal and external storage devices.
> >
> > An online search did not return anything I found relevant, so I have
> > no idea what this message means or how serious it is.
> >
> > Mar 29 17:46:15 archlinux kernel: ------------[ cut here ]------------
> > Mar 29 17:46:15 archlinux kernel: WARNING: CPU: 2 PID: 1424 at
> > fs/btrfs/extent-tree.c:232 btrfs_lookup_extent_info+0x3bf/0x3e0
> > [btrfs]
> > Mar 29 17:46:15 archlinux kernel: Modules linked in: rfcomm
> > rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc
> > fscache netfs cmac algif_hash algif_skcipher af_alg bnep snd_soc_skl
> > snd_soc_hdac_hda snd_hda_ext_core snd_hda_codec_hdmi snd_soc_sst_ipc
> > snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi intel_rapl_msr
> > snd_ctl_led snd_soc_core snd_compress snd_hda_codec_realtek ac97_bus
> > iTCO_wdt tps6598x snd_pcm_dmaengine snd_hda_codec_generic
> > intel_pmc_bxt ee1004 mei_pxp mei_hdcp typec snd_hda_intel
> > iTCO_vendor_support intel_rapl_common snd_intel_dspcfg iwlmvm
> > snd_intel_sdw_acpi snd_hda_codec mac80211 intel_tcc_cooling uvcvideo
> > snd_hda_core x86_pkg_temp_thermal intel_powerclamp videobuf2_vmalloc
> > libarc4 think_lmi btusb coretemp videobuf2_memops snd_hwdep rapl
> > intel_cstate intel_uncore iwlwifi pcspkr psmouse btrtl snd_pcm
> > cdc_mbim i2c_i801 videobuf2_v4l2 btbcm firmware_attributes_class
> > wmi_bmof intel_wmi_thunderbolt e1000e i2c_smbus snd_timer
> > videobuf2_common cdc_wdm mei_me intel_lpss_pci
> > Mar 29 17:46:15 archlinux kernel: btintel cdc_ncm cfg80211 intel_lpss
> > mei idma64 videodev bluetooth cdc_ether qcserial mc usbnet i915
> > ecdh_generic mii usb_wwan mousedev joydev crc16
> > intel_xhci_usb_role_switch ttm thinkpad_acpi roles intel_pch_thermal
> > intel_gtt ledtrig_audio i2c_multi_instantiate platform_profile rfkill
> > snd soundcore acpi_pad mac_hid ipmi_devintf ipmi_msghandler
> > crypto_user fuse bpf_preload ip_tables x_tables ecb crypto_simd xts
> > btrfs blake2b_generic libcrc32c crc32c_generic xor raid6_pq
> > hid_multitouch usbhid uas usb_storage dm_crypt cbc encrypted_keys
> > dm_mod trusted asn1_encoder tee tpm rng_core rtsx_pci_sdmmc serio_raw
> > mmc_core atkbd libps2 crct10dif_pclmul crc32_pclmul crc32c_intel
> > ghash_clmulni_intel cryptd rtsx_pci xhci_pci xhci_pci_renesas wmi
> > i8042 video serio vfat fat
> > Mar 29 17:46:15 archlinux kernel: CPU: 2 PID: 1424 Comm: btrfs-cleaner
> > Tainted: G U W 5.16.16-arch1-1 #1
> > ea44c25f01916b44dd68de6a90ee2f4c9e51dcb4
> > Mar 29 17:46:15 archlinux kernel: Hardware name: LENOVO
> > 20HNCTO1WW/20HNCTO1WW, BIOS R0IET64W (1.42 ) 05/27/2021
> > Mar 29 17:46:15 archlinux kernel: RIP:
> > 0010:btrfs_lookup_extent_info+0x3bf/0x3e0 [btrfs]
> > Mar 29 17:46:15 archlinux kernel: Code: 08 0d 00 00 c7 44 24 14 00 00
> > 00 00 48 89 44 24 08 e9 d0 fc ff ff 80 48 6a 0c e9 e3 fc ff ff 48 85
> > db 0f 85 61 ff ff ff 0f 0b <0f> 0b eb 82 b8 f4 ff ff ff eb aa e8 01 ef
> > 38 db e9 3f 1c 0c 00 66
> > Mar 29 17:46:15 archlinux kernel: RSP: 0018:ffffba48014cfc50 EFLAGS: 00010246
> > Mar 29 17:46:15 archlinux kernel: RAX: 0000000000000000 RBX:
> > 0000000000000000 RCX: 0000000000000000
> > Mar 29 17:46:15 archlinux kernel: RDX: 0000000000000000 RSI:
> > 000000531c714000 RDI: ffff93640021b178
> > Mar 29 17:46:15 archlinux kernel: RBP: ffff9365d8a11ee0 R08:
> > 0000000000000000 R09: ffff9365d8a11ee0
> > Mar 29 17:46:15 archlinux kernel: R10: 000145ce761ca360 R11:
> > 0000000000000000 R12: ffff93640021b000
> > Mar 29 17:46:15 archlinux kernel: R13: ffff93640021b178 R14:
> > 0000000000000000 R15: 000000531c714000
> > Mar 29 17:46:15 archlinux kernel: FS: 0000000000000000(0000)
> > GS:ffff936b1f500000(0000) knlGS:0000000000000000
> > Mar 29 17:46:15 archlinux kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
> > 0000000080050033
> > Mar 29 17:46:15 archlinux kernel: CR2: 00007f448004a000 CR3:
> > 000000055c810001 CR4: 00000000003706e0
> > Mar 29 17:46:15 archlinux kernel: DR0: 0000000000000000 DR1:
> > 0000000000000000 DR2: 0000000000000000
> > Mar 29 17:46:15 archlinux kernel: DR3: 0000000000000000 DR6:
> > 00000000fffe0ff0 DR7: 0000000000000400
> > Mar 29 17:46:15 archlinux kernel: Call Trace:
> > Mar 29 17:46:15 archlinux kernel: <TASK>
> > Mar 29 17:46:15 archlinux kernel: do_walk_down+0x171/0x690 [btrfs
> > 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > Mar 29 17:46:15 archlinux kernel: walk_down_tree+0xce/0x110 [btrfs
> > 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > Mar 29 17:46:15 archlinux kernel: btrfs_drop_snapshot+0x1de/0x830
> > [btrfs 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > Mar 29 17:46:15 archlinux kernel:
> > btrfs_clean_one_deleted_snapshot+0xe4/0x100 [btrfs
> > 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > Mar 29 17:46:15 archlinux kernel: cleaner_kthread+0xe5/0x130 [btrfs
> > 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > Mar 29 17:46:15 archlinux kernel: ? end_workqueue_bio+0xc0/0xc0
> > [btrfs 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > Mar 29 17:46:15 archlinux kernel: kthread+0x15c/0x180
> > Mar 29 17:46:15 archlinux kernel: ? set_kthread_struct+0x40/0x40
> > Mar 29 17:46:15 archlinux kernel: ret_from_fork+0x22/0x30
> > Mar 29 17:46:15 archlinux kernel: </TASK>
> > Mar 29 17:46:15 archlinux kernel: ---[ end trace bc332cefd9295579 ]---
> > Mar 29 17:46:15 archlinux kernel: BTRFS error (device dm-1): Missing references.
> >
> >
> > # btrfs scrub status /mnt/usb_hdd
> > UUID: <redacted>
> > Scrub started: Tue Mar 29 01:45:08 2022
> > Status: finished
> > Duration: 1:43:34
> > Total to scrub: 392.98GiB
> > Rate: 64.76MiB/s
> > Error summary: no errors found
> >
> >
> > # btrfs scrub status /
> > UUID: <redacted>
> > Scrub started: Tue Mar 29 03:33:08 2022
> > Status: finished
> > Duration: 0:02:42
> > Total to scrub: 59.40GiB
> > Rate: 318.16MiB/s
> > Error summary: no errors found
> >
> > Here is an indication of how frequently the errors are reported in the logs:
> >
> > Mar 29 17:44:12 kernel: BTRFS error (device dm-1): Missing references.
> > Mar 29 17:44:43 kernel: BTRFS error (device dm-1): Missing references.
> > Mar 29 17:45:14 kernel: BTRFS error (device dm-1): Missing references.
> > Mar 29 17:45:44 kernel: BTRFS error (device dm-1): Missing references.
> >
> > It looks like it is reported every 30 seconds continuously, whether
> > the device is being actively used or is idle.
>
> adding info to the above post:
>
> device dm-1 is my usb-attached HDD (WD Elements).
> It contains 400 snapshots. This large number of snapshots has not
> presented any problems in the past because it is a backup disk only.
>
> Every 30 seconds the message contains the same btrfs UUID values, like
> this example:
>
> btrfs_clean_one_deleted_snapshot+0xe4/0x100 [btrfs
> 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
>
> The logs are always for btrfs 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04 only.
>
> I'm using btrbk to create snapshots. I see that the last one that was
> sent to the USB HDD is listed as "incomplete" by btrbk.
>
> Any suggestions for tracking this down and resolving it?
update 2:
resolving the incomplete btrbk backup (deleting that snapshot and
creating a new backup with btrbk, which completed successfully) did
not resolve the kernel error message. It continues to appear every 30
seconds. However, the btrfs UUID is different now. Here's the new
message.
Mar 29 20:56:27 archlinux kernel: BTRFS error (device dm-1): Missing references.
Mar 29 20:56:57 archlinux kernel: ------------[ cut here ]------------
Mar 29 20:56:57 archlinux kernel: WARNING: CPU: 2 PID: 932 at
fs/btrfs/extent-tree.c:235 btrfs_lookup_extent_info+0x3ed/0x410
[btrfs]
Mar 29 20:56:57 archlinux kernel: Modules linked in: nls_iso8859_1
rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc
fscache netfs snd_soc_skl cmac snd_soc_hdac_hda algif_hash
snd_hda_ext_core algif_skcipher snd_soc_sst_ipc af_alg bnep
snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi
snd_hda_codec_hdmi snd_soc_core snd_ctl_led intel_rapl_msr
intel_rapl_common snd_compress snd_hda_codec_realtek ac97_bus
snd_hda_codec_generic snd_pcm_dmaengine intel_tcc_cooling iTCO_wdt
iwlmvm x86_pkg_temp_thermal mac80211 snd_hda_intel tps6598x
intel_pmc_bxt libarc4 intel_powerclamp btusb ee1004 mei_pxp
snd_intel_dspcfg iTCO_vendor_support mei_hdcp typec snd_intel_sdw_acpi
coretemp iwlwifi btrtl rapl snd_hda_codec btbcm uvcvideo intel_cstate
btintel iwlmei snd_hda_core intel_uncore think_lmi btmtk
videobuf2_vmalloc psmouse pcspkr firmware_attributes_class
videobuf2_memops snd_hwdep wmi_bmof intel_wmi_thunderbolt cdc_mbim
bluetooth videobuf2_v4l2 snd_pcm cdc_wdm e1000e videobuf2_common
i2c_i801 cdc_ncm
Mar 29 20:56:57 archlinux kernel: i2c_smbus snd_timer cdc_ether
mei_me cfg80211 thinkpad_acpi videodev ecdh_generic mei mc usbnet
crc16 ledtrig_audio platform_profile rfkill qcserial mii usb_wwan
mousedev joydev i2c_multi_instantiate snd soundcore i915
intel_xhci_usb_role_switch acpi_pad roles mac_hid intel_lpss_pci ttm
intel_pch_thermal intel_lpss intel_gtt idma64 ipmi_devintf
ipmi_msghandler crypto_user fuse bpf_preload ip_tables x_tables ecb
crypto_simd xts btrfs blake2b_generic libcrc32c crc32c_generic xor
raid6_pq hid_multitouch usbhid uas usb_storage dm_crypt cbc
encrypted_keys dm_mod trusted asn1_encoder tee tpm rng_core
rtsx_pci_sdmmc serio_raw atkbd mmc_core libps2 crct10dif_pclmul
crc32_pclmul crc32c_intel ghash_clmulni_intel rtsx_pci cryptd xhci_pci
xhci_pci_renesas wmi i8042 video serio vfat fat
Mar 29 20:56:57 archlinux kernel: CPU: 2 PID: 932 Comm: btrfs-cleaner
Tainted: G U W 5.17.1-arch1-1 #1
0ea933cb6bfe82a8dc16ab834a4bccdd297f98b7
Mar 29 20:56:57 archlinux kernel: Hardware name: LENOVO
20HNCTO1WW/20HNCTO1WW, BIOS R0IET64W (1.42 ) 05/27/2021
Mar 29 20:56:57 archlinux kernel: RIP:
0010:btrfs_lookup_extent_info+0x3ed/0x410 [btrfs]
Mar 29 20:56:57 archlinux kernel: Code: 00 00 c7 44 24 1c 00 00 00 00
48 89 44 24 10 e9 a3 fc ff ff 80 48 6a 0c e9 b7 fc ff ff 48 83 3c 24
00 0f 85 54 ff ff ff 0f 0b <0f> 0b e9 79 ff ff ff b8 f4 ff ff ff eb a5
e8 d0 e7 54 f7 e9 8f 06
Mar 29 20:56:57 archlinux kernel: RSP: 0018:ffffc199810ebc58 EFLAGS: 00010246
Mar 29 20:56:57 archlinux kernel: RAX: 0000000000000000 RBX:
000000531c714000 RCX: 0000000000000000
Mar 29 20:56:57 archlinux kernel: RDX: 0000000000000000 RSI:
000000531c714000 RDI: ffff9cd967865f78
Mar 29 20:56:57 archlinux kernel: RBP: ffff9cd9c3dd33f0 R08:
0000000000000000 R09: 0000000000000001
Mar 29 20:56:57 archlinux kernel: R10: 00012972b4686430 R11:
0000000000000001 R12: ffff9cd967865e00
Mar 29 20:56:57 archlinux kernel: R13: ffff9cd967865f78 R14:
0000000000000000 R15: ffff9cd991cdd000
Mar 29 20:56:57 archlinux kernel: FS: 0000000000000000(0000)
GS:ffff9ce05f500000(0000) knlGS:0000000000000000
Mar 29 20:56:57 archlinux kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Mar 29 20:56:57 archlinux kernel: CR2: 000055c824c50000 CR3:
00000006c7810002 CR4: 00000000003706e0
Mar 29 20:56:57 archlinux kernel: DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Mar 29 20:56:57 archlinux kernel: DR3: 0000000000000000 DR6:
00000000fffe0ff0 DR7: 0000000000000400
Mar 29 20:56:57 archlinux kernel: Call Trace:
Mar 29 20:56:57 archlinux kernel: <TASK>
Mar 29 20:56:57 archlinux kernel: do_walk_down+0x171/0x690 [btrfs
d7bb535792b5408a564e9011b11717e721df9e55]
Mar 29 20:56:57 archlinux kernel: walk_down_tree+0xce/0x110 [btrfs
d7bb535792b5408a564e9011b11717e721df9e55]
Mar 29 20:56:57 archlinux kernel: btrfs_drop_snapshot+0x1df/0x830
[btrfs d7bb535792b5408a564e9011b11717e721df9e55]
Mar 29 20:56:57 archlinux kernel:
btrfs_clean_one_deleted_snapshot+0xe4/0x100 [btrfs
d7bb535792b5408a564e9011b11717e721df9e55]
Mar 29 20:56:57 archlinux kernel: cleaner_kthread+0xe5/0x130 [btrfs
d7bb535792b5408a564e9011b11717e721df9e55]
Mar 29 20:56:57 archlinux kernel: ? end_workqueue_bio+0xc0/0xc0
[btrfs d7bb535792b5408a564e9011b11717e721df9e55]
Mar 29 20:56:57 archlinux kernel: kthread+0xd8/0x100
Mar 29 20:56:57 archlinux kernel: ? kthread_complete_and_exit+0x20/0x20
Mar 29 20:56:57 archlinux kernel: ret_from_fork+0x22/0x30
Mar 29 20:56:57 archlinux kernel: </TASK>
Mar 29 20:56:57 archlinux kernel: ---[ end trace 0000000000000000 ]---
Mar 29 20:56:57 archlinux kernel: BTRFS error (device dm-1): Missing references.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: kernel: BTRFS error (device dm-1): Missing references.
2022-03-30 0:58 ` Dave T
@ 2022-03-30 2:32 ` Dave T
0 siblings, 0 replies; 4+ messages in thread
From: Dave T @ 2022-03-30 2:32 UTC (permalink / raw)
To: Btrfs BTRFS
On Tue, Mar 29, 2022 at 8:58 PM Dave T <davestechshop@gmail.com> wrote:
>
> On Tue, Mar 29, 2022 at 7:39 PM Dave T <davestechshop@gmail.com> wrote:
> >
> > On Tue, Mar 29, 2022 at 7:08 PM Dave T <davestechshop@gmail.com> wrote:
> > >
> > > My systemd journal (log) is filled with the BTRFS error shown below.
> > > I'm running a fully updated Arch Linux system on a ThinkPad with the
> > > latest bios updates for that hardware.
> > >
> > > BTRFS scrub reports no errors on the internal and external storage devices.
> > >
> > > An online search did not return anything I found relevant, so I have
> > > no idea what this message means or how serious it is.
> > >
> > > Mar 29 17:46:15 archlinux kernel: ------------[ cut here ]------------
> > > Mar 29 17:46:15 archlinux kernel: WARNING: CPU: 2 PID: 1424 at
> > > fs/btrfs/extent-tree.c:232 btrfs_lookup_extent_info+0x3bf/0x3e0
> > > [btrfs]
> > > Mar 29 17:46:15 archlinux kernel: Modules linked in: rfcomm
> > > rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc
> > > fscache netfs cmac algif_hash algif_skcipher af_alg bnep snd_soc_skl
> > > snd_soc_hdac_hda snd_hda_ext_core snd_hda_codec_hdmi snd_soc_sst_ipc
> > > snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi intel_rapl_msr
> > > snd_ctl_led snd_soc_core snd_compress snd_hda_codec_realtek ac97_bus
> > > iTCO_wdt tps6598x snd_pcm_dmaengine snd_hda_codec_generic
> > > intel_pmc_bxt ee1004 mei_pxp mei_hdcp typec snd_hda_intel
> > > iTCO_vendor_support intel_rapl_common snd_intel_dspcfg iwlmvm
> > > snd_intel_sdw_acpi snd_hda_codec mac80211 intel_tcc_cooling uvcvideo
> > > snd_hda_core x86_pkg_temp_thermal intel_powerclamp videobuf2_vmalloc
> > > libarc4 think_lmi btusb coretemp videobuf2_memops snd_hwdep rapl
> > > intel_cstate intel_uncore iwlwifi pcspkr psmouse btrtl snd_pcm
> > > cdc_mbim i2c_i801 videobuf2_v4l2 btbcm firmware_attributes_class
> > > wmi_bmof intel_wmi_thunderbolt e1000e i2c_smbus snd_timer
> > > videobuf2_common cdc_wdm mei_me intel_lpss_pci
> > > Mar 29 17:46:15 archlinux kernel: btintel cdc_ncm cfg80211 intel_lpss
> > > mei idma64 videodev bluetooth cdc_ether qcserial mc usbnet i915
> > > ecdh_generic mii usb_wwan mousedev joydev crc16
> > > intel_xhci_usb_role_switch ttm thinkpad_acpi roles intel_pch_thermal
> > > intel_gtt ledtrig_audio i2c_multi_instantiate platform_profile rfkill
> > > snd soundcore acpi_pad mac_hid ipmi_devintf ipmi_msghandler
> > > crypto_user fuse bpf_preload ip_tables x_tables ecb crypto_simd xts
> > > btrfs blake2b_generic libcrc32c crc32c_generic xor raid6_pq
> > > hid_multitouch usbhid uas usb_storage dm_crypt cbc encrypted_keys
> > > dm_mod trusted asn1_encoder tee tpm rng_core rtsx_pci_sdmmc serio_raw
> > > mmc_core atkbd libps2 crct10dif_pclmul crc32_pclmul crc32c_intel
> > > ghash_clmulni_intel cryptd rtsx_pci xhci_pci xhci_pci_renesas wmi
> > > i8042 video serio vfat fat
> > > Mar 29 17:46:15 archlinux kernel: CPU: 2 PID: 1424 Comm: btrfs-cleaner
> > > Tainted: G U W 5.16.16-arch1-1 #1
> > > ea44c25f01916b44dd68de6a90ee2f4c9e51dcb4
> > > Mar 29 17:46:15 archlinux kernel: Hardware name: LENOVO
> > > 20HNCTO1WW/20HNCTO1WW, BIOS R0IET64W (1.42 ) 05/27/2021
> > > Mar 29 17:46:15 archlinux kernel: RIP:
> > > 0010:btrfs_lookup_extent_info+0x3bf/0x3e0 [btrfs]
> > > Mar 29 17:46:15 archlinux kernel: Code: 08 0d 00 00 c7 44 24 14 00 00
> > > 00 00 48 89 44 24 08 e9 d0 fc ff ff 80 48 6a 0c e9 e3 fc ff ff 48 85
> > > db 0f 85 61 ff ff ff 0f 0b <0f> 0b eb 82 b8 f4 ff ff ff eb aa e8 01 ef
> > > 38 db e9 3f 1c 0c 00 66
> > > Mar 29 17:46:15 archlinux kernel: RSP: 0018:ffffba48014cfc50 EFLAGS: 00010246
> > > Mar 29 17:46:15 archlinux kernel: RAX: 0000000000000000 RBX:
> > > 0000000000000000 RCX: 0000000000000000
> > > Mar 29 17:46:15 archlinux kernel: RDX: 0000000000000000 RSI:
> > > 000000531c714000 RDI: ffff93640021b178
> > > Mar 29 17:46:15 archlinux kernel: RBP: ffff9365d8a11ee0 R08:
> > > 0000000000000000 R09: ffff9365d8a11ee0
> > > Mar 29 17:46:15 archlinux kernel: R10: 000145ce761ca360 R11:
> > > 0000000000000000 R12: ffff93640021b000
> > > Mar 29 17:46:15 archlinux kernel: R13: ffff93640021b178 R14:
> > > 0000000000000000 R15: 000000531c714000
> > > Mar 29 17:46:15 archlinux kernel: FS: 0000000000000000(0000)
> > > GS:ffff936b1f500000(0000) knlGS:0000000000000000
> > > Mar 29 17:46:15 archlinux kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
> > > 0000000080050033
> > > Mar 29 17:46:15 archlinux kernel: CR2: 00007f448004a000 CR3:
> > > 000000055c810001 CR4: 00000000003706e0
> > > Mar 29 17:46:15 archlinux kernel: DR0: 0000000000000000 DR1:
> > > 0000000000000000 DR2: 0000000000000000
> > > Mar 29 17:46:15 archlinux kernel: DR3: 0000000000000000 DR6:
> > > 00000000fffe0ff0 DR7: 0000000000000400
> > > Mar 29 17:46:15 archlinux kernel: Call Trace:
> > > Mar 29 17:46:15 archlinux kernel: <TASK>
> > > Mar 29 17:46:15 archlinux kernel: do_walk_down+0x171/0x690 [btrfs
> > > 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > > Mar 29 17:46:15 archlinux kernel: walk_down_tree+0xce/0x110 [btrfs
> > > 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > > Mar 29 17:46:15 archlinux kernel: btrfs_drop_snapshot+0x1de/0x830
> > > [btrfs 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > > Mar 29 17:46:15 archlinux kernel:
> > > btrfs_clean_one_deleted_snapshot+0xe4/0x100 [btrfs
> > > 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > > Mar 29 17:46:15 archlinux kernel: cleaner_kthread+0xe5/0x130 [btrfs
> > > 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > > Mar 29 17:46:15 archlinux kernel: ? end_workqueue_bio+0xc0/0xc0
> > > [btrfs 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> > > Mar 29 17:46:15 archlinux kernel: kthread+0x15c/0x180
> > > Mar 29 17:46:15 archlinux kernel: ? set_kthread_struct+0x40/0x40
> > > Mar 29 17:46:15 archlinux kernel: ret_from_fork+0x22/0x30
> > > Mar 29 17:46:15 archlinux kernel: </TASK>
> > > Mar 29 17:46:15 archlinux kernel: ---[ end trace bc332cefd9295579 ]---
> > > Mar 29 17:46:15 archlinux kernel: BTRFS error (device dm-1): Missing references.
> > >
> > >
> > > # btrfs scrub status /mnt/usb_hdd
> > > UUID: <redacted>
> > > Scrub started: Tue Mar 29 01:45:08 2022
> > > Status: finished
> > > Duration: 1:43:34
> > > Total to scrub: 392.98GiB
> > > Rate: 64.76MiB/s
> > > Error summary: no errors found
> > >
> > >
> > > # btrfs scrub status /
> > > UUID: <redacted>
> > > Scrub started: Tue Mar 29 03:33:08 2022
> > > Status: finished
> > > Duration: 0:02:42
> > > Total to scrub: 59.40GiB
> > > Rate: 318.16MiB/s
> > > Error summary: no errors found
> > >
> > > Here is an indication of how frequently the errors are reported in the logs:
> > >
> > > Mar 29 17:44:12 kernel: BTRFS error (device dm-1): Missing references.
> > > Mar 29 17:44:43 kernel: BTRFS error (device dm-1): Missing references.
> > > Mar 29 17:45:14 kernel: BTRFS error (device dm-1): Missing references.
> > > Mar 29 17:45:44 kernel: BTRFS error (device dm-1): Missing references.
> > >
> > > It looks like it is reported every 30 seconds continuously, whether
> > > the device is being actively used or is idle.
> >
> > adding info to the above post:
> >
> > device dm-1 is my usb-attached HDD (WD Elements).
> > It contains 400 snapshots. This large number of snapshots has not
> > presented any problems in the past because it is a backup disk only.
> >
> > Every 30 seconds the message contains the same btrfs UUID values, like
> > this example:
> >
> > btrfs_clean_one_deleted_snapshot+0xe4/0x100 [btrfs
> > 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04]
> >
> > The logs are always for btrfs 0911a8fe6c71eb7dbbad7c3b2067cc4913bade04 only.
> >
> > I'm using btrbk to create snapshots. I see that the last one that was
> > sent to the USB HDD is listed as "incomplete" by btrbk.
> >
> > Any suggestions for tracking this down and resolving it?
>
> update 2:
>
> resolving the incomplete btrbk backup (deleting that snapshot and
> creating a new backup with btrbk, which completed successfully) did
> not resolve the kernel error message. It continues to appear every 30
> seconds. However, the btrfs UUID is different now. Here's the new
> message.
>
> Mar 29 20:56:27 archlinux kernel: BTRFS error (device dm-1): Missing references.
> Mar 29 20:56:57 archlinux kernel: ------------[ cut here ]------------
> Mar 29 20:56:57 archlinux kernel: WARNING: CPU: 2 PID: 932 at
> fs/btrfs/extent-tree.c:235 btrfs_lookup_extent_info+0x3ed/0x410
> [btrfs]
> Mar 29 20:56:57 archlinux kernel: Modules linked in: nls_iso8859_1
> rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc
> fscache netfs snd_soc_skl cmac snd_soc_hdac_hda algif_hash
> snd_hda_ext_core algif_skcipher snd_soc_sst_ipc af_alg bnep
> snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi
> snd_hda_codec_hdmi snd_soc_core snd_ctl_led intel_rapl_msr
> intel_rapl_common snd_compress snd_hda_codec_realtek ac97_bus
> snd_hda_codec_generic snd_pcm_dmaengine intel_tcc_cooling iTCO_wdt
> iwlmvm x86_pkg_temp_thermal mac80211 snd_hda_intel tps6598x
> intel_pmc_bxt libarc4 intel_powerclamp btusb ee1004 mei_pxp
> snd_intel_dspcfg iTCO_vendor_support mei_hdcp typec snd_intel_sdw_acpi
> coretemp iwlwifi btrtl rapl snd_hda_codec btbcm uvcvideo intel_cstate
> btintel iwlmei snd_hda_core intel_uncore think_lmi btmtk
> videobuf2_vmalloc psmouse pcspkr firmware_attributes_class
> videobuf2_memops snd_hwdep wmi_bmof intel_wmi_thunderbolt cdc_mbim
> bluetooth videobuf2_v4l2 snd_pcm cdc_wdm e1000e videobuf2_common
> i2c_i801 cdc_ncm
> Mar 29 20:56:57 archlinux kernel: i2c_smbus snd_timer cdc_ether
> mei_me cfg80211 thinkpad_acpi videodev ecdh_generic mei mc usbnet
> crc16 ledtrig_audio platform_profile rfkill qcserial mii usb_wwan
> mousedev joydev i2c_multi_instantiate snd soundcore i915
> intel_xhci_usb_role_switch acpi_pad roles mac_hid intel_lpss_pci ttm
> intel_pch_thermal intel_lpss intel_gtt idma64 ipmi_devintf
> ipmi_msghandler crypto_user fuse bpf_preload ip_tables x_tables ecb
> crypto_simd xts btrfs blake2b_generic libcrc32c crc32c_generic xor
> raid6_pq hid_multitouch usbhid uas usb_storage dm_crypt cbc
> encrypted_keys dm_mod trusted asn1_encoder tee tpm rng_core
> rtsx_pci_sdmmc serio_raw atkbd mmc_core libps2 crct10dif_pclmul
> crc32_pclmul crc32c_intel ghash_clmulni_intel rtsx_pci cryptd xhci_pci
> xhci_pci_renesas wmi i8042 video serio vfat fat
> Mar 29 20:56:57 archlinux kernel: CPU: 2 PID: 932 Comm: btrfs-cleaner
> Tainted: G U W 5.17.1-arch1-1 #1
> 0ea933cb6bfe82a8dc16ab834a4bccdd297f98b7
> Mar 29 20:56:57 archlinux kernel: Hardware name: LENOVO
> 20HNCTO1WW/20HNCTO1WW, BIOS R0IET64W (1.42 ) 05/27/2021
> Mar 29 20:56:57 archlinux kernel: RIP:
> 0010:btrfs_lookup_extent_info+0x3ed/0x410 [btrfs]
> Mar 29 20:56:57 archlinux kernel: Code: 00 00 c7 44 24 1c 00 00 00 00
> 48 89 44 24 10 e9 a3 fc ff ff 80 48 6a 0c e9 b7 fc ff ff 48 83 3c 24
> 00 0f 85 54 ff ff ff 0f 0b <0f> 0b e9 79 ff ff ff b8 f4 ff ff ff eb a5
> e8 d0 e7 54 f7 e9 8f 06
> Mar 29 20:56:57 archlinux kernel: RSP: 0018:ffffc199810ebc58 EFLAGS: 00010246
> Mar 29 20:56:57 archlinux kernel: RAX: 0000000000000000 RBX:
> 000000531c714000 RCX: 0000000000000000
> Mar 29 20:56:57 archlinux kernel: RDX: 0000000000000000 RSI:
> 000000531c714000 RDI: ffff9cd967865f78
> Mar 29 20:56:57 archlinux kernel: RBP: ffff9cd9c3dd33f0 R08:
> 0000000000000000 R09: 0000000000000001
> Mar 29 20:56:57 archlinux kernel: R10: 00012972b4686430 R11:
> 0000000000000001 R12: ffff9cd967865e00
> Mar 29 20:56:57 archlinux kernel: R13: ffff9cd967865f78 R14:
> 0000000000000000 R15: ffff9cd991cdd000
> Mar 29 20:56:57 archlinux kernel: FS: 0000000000000000(0000)
> GS:ffff9ce05f500000(0000) knlGS:0000000000000000
> Mar 29 20:56:57 archlinux kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
> 0000000080050033
> Mar 29 20:56:57 archlinux kernel: CR2: 000055c824c50000 CR3:
> 00000006c7810002 CR4: 00000000003706e0
> Mar 29 20:56:57 archlinux kernel: DR0: 0000000000000000 DR1:
> 0000000000000000 DR2: 0000000000000000
> Mar 29 20:56:57 archlinux kernel: DR3: 0000000000000000 DR6:
> 00000000fffe0ff0 DR7: 0000000000000400
> Mar 29 20:56:57 archlinux kernel: Call Trace:
> Mar 29 20:56:57 archlinux kernel: <TASK>
> Mar 29 20:56:57 archlinux kernel: do_walk_down+0x171/0x690 [btrfs
> d7bb535792b5408a564e9011b11717e721df9e55]
> Mar 29 20:56:57 archlinux kernel: walk_down_tree+0xce/0x110 [btrfs
> d7bb535792b5408a564e9011b11717e721df9e55]
> Mar 29 20:56:57 archlinux kernel: btrfs_drop_snapshot+0x1df/0x830
> [btrfs d7bb535792b5408a564e9011b11717e721df9e55]
> Mar 29 20:56:57 archlinux kernel:
> btrfs_clean_one_deleted_snapshot+0xe4/0x100 [btrfs
> d7bb535792b5408a564e9011b11717e721df9e55]
> Mar 29 20:56:57 archlinux kernel: cleaner_kthread+0xe5/0x130 [btrfs
> d7bb535792b5408a564e9011b11717e721df9e55]
> Mar 29 20:56:57 archlinux kernel: ? end_workqueue_bio+0xc0/0xc0
> [btrfs d7bb535792b5408a564e9011b11717e721df9e55]
> Mar 29 20:56:57 archlinux kernel: kthread+0xd8/0x100
> Mar 29 20:56:57 archlinux kernel: ? kthread_complete_and_exit+0x20/0x20
> Mar 29 20:56:57 archlinux kernel: ret_from_fork+0x22/0x30
> Mar 29 20:56:57 archlinux kernel: </TASK>
> Mar 29 20:56:57 archlinux kernel: ---[ end trace 0000000000000000 ]---
> Mar 29 20:56:57 archlinux kernel: BTRFS error (device dm-1): Missing references.
Update 3:
I deleted all the backups (all subvolumes on dm-1), keeping only the
top level btrfs volume. I guess I did not need to do that because the
errors continue even after removing all the 400 snapshots I had there.
Here's the result of btrfs scrub status -R:
Status: finished
Duration: 0:05:31
data_extents_scrubbed: 450403
tree_extents_scrubbed: 10366
data_bytes_scrubbed: 26869157888
tree_bytes_scrubbed: 169836544
read_errors: 0
csum_errors: 0
verify_errors: 0
no_csum: 8128
csum_discards: 6551725
super_errors: 0
malloc_errors: 0
uncorrectable_errors: 0
unverified_errors: 0
corrected_errors: 0
last_physical: 424166817792
The kernel error message remains exactly the same as what I reported
last, even the uuid. The error continues to be logged every 30
seconds.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-03-30 2:33 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-03-29 23:08 kernel: BTRFS error (device dm-1): Missing references Dave T
2022-03-29 23:39 ` Dave T
2022-03-30 0:58 ` Dave T
2022-03-30 2:32 ` Dave T
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