SOLVED: Btrfs / mounts read-only

Solution Summary
I have booted with root mounted read-write. There are still a number of issues I’m having, but I’ll share that in a new topic. Here are steps I used to get the root filesystem mounting read-write again:

  1. Reboot into single-user mode
  • You need to have your root password for this (sudo will not work for this)
  • Press ‘e’ at the GRUB menu at reboot.
  • Find the line beginning with ‘linux’ and append ‘init=/bin/bash’ to this line
  • boot and give root password when prompted
  1. Figure out how to mount root read-write :slight_smile:
    I didn’t take good notes here. I believe that root was mounted read-only in single user mode and I mounted root again at /mnt read write.
    #mount -t btrfs /dev/sdc /mnt

  2. scrub the filesystem with ‘btrfs scrub start -Bd /mnt’
    scrub is a safe to use maintenance command (so I have read) which is used on a mounted read-write filesystem to verify and repair blocks. It will take a long time
    -B option is to make the process interactive (does not run in background)
    -d option breaks up the summary by device which can help you understand if there may be a hardware problem below the filesystem

  3. I could reboot with root mounted read-write after this. Everything was working again with the exception of ongoing filesystem issues (look for my next post as I work through this)

Original Problem Report
My freedombox does not mount / read-write. I’m sure that I’ve made some mistakes with Btrfs (neglect), but I’m not sure what they are yet. So far I have not lost anything valuable, and my fb is limping along in read-only (but is still doing job #1 as a router!).

My partition layout is:
sde: boot, swap, btrfs
sda: btrfs
sdb: btrfs
sdc: btrfs
sdd: btrfs

I have a single btrfs raid1 filesystem mouted at / which includes all btrfs partitions above. The filesystem is mostly empty.

Problem Description

  1. File system mounts read-only at boot:
    $touch foo
    touch: cannot touch ‘foo’: Read-only file system

  2. btrfs transid errors
    Jul 06 18:36:20 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 820701478912 wanted 1278008 found 1231490
    I believe that the hardware is okay, but need to exclude this possibility

  3. btrfs transid are widely removed
    transid can be fixed if caught early, but the difference between 1278008 and 1231490 are “too far apart,” (the problem was allowed to perpetuate beyond the point for reasonable hope of repair as I understand)

  4. fb 500 error at login (because read-only filesystem). Can’t use cockpit. I can SSH.

Steps to Reproduce

  1. Install fb on a single btrfs / partition
  2. Use it and never do filesystem maintenance :slight_smile:
  3. don’t monitor logs because i don’t want to to learn how to journalctl :slight_smile:
  4. pay the price for 2 & 3

Expected Results
Long term filesystem reliability on a system with low i/o load

Actual results
/ mounts ro at boot
btrfs transid errors as above
log rotation failure because / is ro
500 errors for fb web application

Jul 06 18:36:20 mezquite kernel: BTRFS info (device sde3): read error corrected: ino 0 off 820701253632 (dev /dev/sdc sector 451210664)
Jul 06 18:36:20 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 820701478912 wanted 1278008 found 1231490
Jul 06 18:36:22 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 820738113536 wanted 1278008 found 1231501
Jul 06 18:36:38 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 821586640896 wanted 1292240 found 1231303
Jul 06 18:36:38 mezquite kernel: BTRFS info (device sde3): read error corrected: ino 0 off 821586640896 (dev /dev/sdc sector 452939936)
Jul 06 18:36:38 mezquite kernel: BTRFS info (device sde3): read error corrected: ino 0 off 821586644992 (dev /dev/sdc sector 452939944)

Screenshot
n/a

Information

  • 5.10.0-15-amd64
  • fb had been autoupdating until end of june
  • intel atom
  • net-inst, DEBIAN_FRONTEND=noninteractive apt-get install freedombox

part of journalctl -b
Jul 06 17:25:33 mezquite kernel: scsi host1: ahci
Jul 06 17:25:33 mezquite kernel: scsi host2: ahci
Jul 06 17:25:33 mezquite kernel: scsi host3: ahci
Jul 06 17:25:33 mezquite kernel: ata1: SATA max UDMA/133 abar m2048@0xdf35c000 port 0xdf35c100 irq 30
Jul 06 17:25:33 mezquite kernel: ata2: SATA max UDMA/133 abar m2048@0xdf35c000 port 0xdf35c180 irq 31
Jul 06 17:25:33 mezquite kernel: ata3: SATA max UDMA/133 abar m2048@0xdf35c000 port 0xdf35c200 irq 32
Jul 06 17:25:33 mezquite kernel: ata4: SATA max UDMA/133 abar m2048@0xdf35c000 port 0xdf35c280 irq 33
Jul 06 17:25:33 mezquite kernel: ahci 0000:00:14.0: AHCI 0001.0301 32 slots 2 ports 6 Gbps 0x60 impl SATA mode
Jul 06 17:25:33 mezquite kernel: ahci 0000:00:14.0: flags: 64bit ncq led clo only pio ems deso sadm sds apst
Jul 06 17:25:33 mezquite kernel: scsi host4: ahci
Jul 06 17:25:33 mezquite kernel: scsi host5: ahci
Jul 06 17:25:33 mezquite kernel: scsi host6: ahci
Jul 06 17:25:33 mezquite kernel: scsi host7: ahci
Jul 06 17:25:33 mezquite kernel: scsi host8: ahci
Jul 06 17:25:33 mezquite kernel: scsi host9: ahci
Jul 06 17:25:33 mezquite kernel: scsi host10: ahci
Jul 06 17:25:33 mezquite kernel: ata5: DUMMY
Jul 06 17:25:33 mezquite kernel: ata6: DUMMY
Jul 06 17:25:33 mezquite kernel: ata7: DUMMY
Jul 06 17:25:33 mezquite kernel: ata8: DUMMY
Jul 06 17:25:33 mezquite kernel: ata9: DUMMY
Jul 06 17:25:33 mezquite kernel: ata10: SATA max UDMA/133 abar m2048@0xdf35a000 port 0xdf35a380 irq 44
Jul 06 17:25:33 mezquite kernel: ata11: SATA max UDMA/133 abar m2048@0xdf35a000 port 0xdf35a400 irq 45
Jul 06 17:25:33 mezquite kernel: usb 1-3: new high-speed USB device number 2 using xhci_hcd
Jul 06 17:25:33 mezquite kernel: ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Jul 06 17:25:33 mezquite kernel: ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Jul 06 17:25:33 mezquite kernel: ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Jul 06 17:25:33 mezquite kernel: ata4: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Jul 06 17:25:33 mezquite kernel: ata2.00: ATA-8: HGST HMS5C4040BLE640, MPAOA5D0, max UDMA/133
Jul 06 17:25:33 mezquite kernel: ata2.00: 7814037168 sectors, multi 16: LBA48 NCQ (depth 32), AA
Jul 06 17:25:33 mezquite kernel: ata4.00: ATA-8: HGST HMS5C4040BLE641, MPAOA5D0, max UDMA/133
Jul 06 17:25:33 mezquite kernel: ata4.00: 7814037168 sectors, multi 16: LBA48 NCQ (depth 32), AA
Jul 06 17:25:33 mezquite kernel: ata1.00: ATA-8: HGST HMS5C4040BLE640, MPAOA5D0, max UDMA/133
Jul 06 17:25:33 mezquite kernel: ata1.00: 7814037168 sectors, multi 16: LBA48 NCQ (depth 32), AA
Jul 06 17:25:33 mezquite kernel: ata3.00: ATA-8: HGST HMS5C4040BLE641, MPAOA5D0, max UDMA/133
Jul 06 17:25:33 mezquite kernel: ata3.00: 7814037168 sectors, multi 16: LBA48 NCQ (depth 32), AA
Jul 06 17:25:33 mezquite kernel: ata4.00: configured for UDMA/133
Jul 06 17:25:33 mezquite kernel: ata1.00: configured for UDMA/133
Jul 06 17:25:33 mezquite kernel: ata2.00: configured for UDMA/133
Jul 06 17:25:33 mezquite kernel: scsi 0:0:0:0: Direct-Access ATA HGST HMS5C4040BL A5D0 PQ: 0 ANSI: 5
Jul 06 17:25:33 mezquite kernel: ata3.00: configured for UDMA/133
Jul 06 17:25:33 mezquite kernel: scsi 1:0:0:0: Direct-Access ATA HGST HMS5C4040BL A5D0 PQ: 0 ANSI: 5
Jul 06 17:25:33 mezquite kernel: scsi 2:0:0:0: Direct-Access ATA HGST HMS5C4040BL A5D0 PQ: 0 ANSI: 5
Jul 06 17:25:33 mezquite kernel: scsi 3:0:0:0: Direct-Access ATA HGST HMS5C4040BL A5D0 PQ: 0 ANSI: 5
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:04:00.0: Multiqueue Enabled: Rx Queue count = 2, Tx Queue count = 2 XDP Queue count = 0
Jul 06 17:25:33 mezquite kernel: ata11: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Jul 06 17:25:33 mezquite kernel: ata10: SATA link down (SStatus 0 SControl 300)
Jul 06 17:25:33 mezquite kernel: ata11.00: ATA-10: ST500LM034-2GH17A, SDM1, max UDMA/133
Jul 06 17:25:33 mezquite kernel: ata11.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 32), AA
Jul 06 17:25:33 mezquite kernel: usb 1-3: New USB device found, idVendor=05e3, idProduct=0610, bcdDevice=32.98
Jul 06 17:25:33 mezquite kernel: usb 1-3: New USB device strings: Mfr=0, Product=1, SerialNumber=0
Jul 06 17:25:33 mezquite kernel: usb 1-3: Product: USB2.0 Hub
Jul 06 17:25:33 mezquite kernel: hub 1-3:1.0: USB hub found
Jul 06 17:25:33 mezquite kernel: hub 1-3:1.0: 4 ports detected
Jul 06 17:25:33 mezquite kernel: ata11.00: configured for UDMA/133
Jul 06 17:25:33 mezquite kernel: scsi 10:0:0:0: Direct-Access ATA ST500LM034-2GH17 SDM1 PQ: 0 ANSI: 5
Jul 06 17:25:33 mezquite kernel: sd 0:0:0:0: [sda] 7814037168 512-byte logical blocks: (4.00 TB/3.64 TiB)
Jul 06 17:25:33 mezquite kernel: sd 0:0:0:0: [sda] 4096-byte physical blocks
Jul 06 17:25:33 mezquite kernel: sd 0:0:0:0: [sda] Write Protect is off
Jul 06 17:25:33 mezquite kernel: sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
Jul 06 17:25:33 mezquite kernel: sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
Jul 06 17:25:33 mezquite kernel: sd 1:0:0:0: [sdb] 7814037168 512-byte logical blocks: (4.00 TB/3.64 TiB)
Jul 06 17:25:33 mezquite kernel: sd 1:0:0:0: [sdb] 4096-byte physical blocks
Jul 06 17:25:33 mezquite kernel: sd 1:0:0:0: [sdb] Write Protect is off
Jul 06 17:25:33 mezquite kernel: sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
Jul 06 17:25:33 mezquite kernel: sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
Jul 06 17:25:33 mezquite kernel: sd 2:0:0:0: [sdc] 7814037168 512-byte logical blocks: (4.00 TB/3.64 TiB)
Jul 06 17:25:33 mezquite kernel: sd 2:0:0:0: [sdc] 4096-byte physical blocks
Jul 06 17:25:33 mezquite kernel: sd 2:0:0:0: [sdc] Write Protect is off
Jul 06 17:25:33 mezquite kernel: sd 2:0:0:0: [sdc] Mode Sense: 00 3a 00 00
Jul 06 17:25:33 mezquite kernel: sd 2:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
Jul 06 17:25:33 mezquite kernel: sd 3:0:0:0: [sdd] 7814037168 512-byte logical blocks: (4.00 TB/3.64 TiB)
Jul 06 17:25:33 mezquite kernel: sd 3:0:0:0: [sdd] 4096-byte physical blocks
Jul 06 17:25:33 mezquite kernel: sd 3:0:0:0: [sdd] Write Protect is off
Jul 06 17:25:33 mezquite kernel: sd 3:0:0:0: [sdd] Mode Sense: 00 3a 00 00
Jul 06 17:25:33 mezquite kernel: sd 3:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
Jul 06 17:25:33 mezquite kernel: sd 10:0:0:0: [sde] 976773168 512-byte logical blocks: (500 GB/466 GiB)
Jul 06 17:25:33 mezquite kernel: sd 10:0:0:0: [sde] 4096-byte physical blocks
Jul 06 17:25:33 mezquite kernel: sd 10:0:0:0: [sde] Write Protect is off
Jul 06 17:25:33 mezquite kernel: sd 10:0:0:0: [sde] Mode Sense: 00 3a 00 00
Jul 06 17:25:33 mezquite kernel: sd 10:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn’t support DPO or FUA
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:04:00.0: MAC: 6, PHY: 27, PBA No: 030000-000
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:04:00.0: 3c:ec:ef:00:52:90
Jul 06 17:25:33 mezquite kernel: sd 3:0:0:0: [sdd] Attached SCSI disk
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:04:00.0: Intel(R) 10 Gigabit Network Connection
Jul 06 17:25:33 mezquite kernel: sd 2:0:0:0: [sdc] Attached SCSI disk
Jul 06 17:25:33 mezquite kernel: sdb: sdb1
Jul 06 17:25:33 mezquite kernel: sda: sda1
Jul 06 17:25:33 mezquite kernel: sd 1:0:0:0: [sdb] Attached SCSI disk
Jul 06 17:25:33 mezquite kernel: sd 0:0:0:0: [sda] Attached SCSI disk
Jul 06 17:25:33 mezquite kernel: usb 1-3.1: new high-speed USB device number 3 using xhci_hcd
Jul 06 17:25:33 mezquite kernel: usb 1-3.1: New USB device found, idVendor=0557, idProduct=7000, bcdDevice= 0.00
Jul 06 17:25:33 mezquite kernel: usb 1-3.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Jul 06 17:25:33 mezquite kernel: hub 1-3.1:1.0: USB hub found
Jul 06 17:25:33 mezquite kernel: hub 1-3.1:1.0: 4 ports detected
Jul 06 17:25:33 mezquite kernel: sde: sde1 sde2 sde3
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:04:00.1: Multiqueue Enabled: Rx Queue count = 2, Tx Queue count = 2 XDP Queue count = 0
Jul 06 17:25:33 mezquite kernel: sd 10:0:0:0: [sde] Attached SCSI disk
Jul 06 17:25:33 mezquite kernel: usb 1-3.2: new high-speed USB device number 4 using xhci_hcd
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:04:00.1: MAC: 6, PHY: 27, PBA No: 030000-000
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:04:00.1: 3c:ec:ef:00:52:91
Jul 06 17:25:33 mezquite kernel: usb 1-3.2: New USB device found, idVendor=05e3, idProduct=0610, bcdDevice=32.98
Jul 06 17:25:33 mezquite kernel: usb 1-3.2: New USB device strings: Mfr=0, Product=1, SerialNumber=0
Jul 06 17:25:33 mezquite kernel: usb 1-3.2: Product: USB2.0 Hub
Jul 06 17:25:33 mezquite kernel: hub 1-3.2:1.0: USB hub found
Jul 06 17:25:33 mezquite kernel: hub 1-3.2:1.0: 4 ports detected
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:04:00.1: Intel(R) 10 Gigabit Network Connection
Jul 06 17:25:33 mezquite kernel: usb 1-3.1.1: new low-speed USB device number 5 using xhci_hcd
Jul 06 17:25:33 mezquite kernel: usb 1-3.1.1: New USB device found, idVendor=0557, idProduct=2419, bcdDevice= 1.00
Jul 06 17:25:33 mezquite kernel: usb 1-3.1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Jul 06 17:25:33 mezquite kernel: hid: raw HID events driver (C) Jiri Kosina
Jul 06 17:25:33 mezquite kernel: usbcore: registered new interface driver usbhid
Jul 06 17:25:33 mezquite kernel: usbhid: USB HID core driver
Jul 06 17:25:33 mezquite kernel: input: HID 0557:2419 as /devices/pci0000:00/0000:00:15.0/usb1/1-3/1-3.1/1-3.1.1/1-3.1.1:1.0/0003:0557:2419.0001/input/input0
Jul 06 17:25:33 mezquite kernel: hid-generic 0003:0557:2419.0001: input,hidraw0: USB HID v1.00 Keyboard [HID 0557:2419] on usb-0000:00:15.0-3.1.1/input0
Jul 06 17:25:33 mezquite kernel: input: HID 0557:2419 as /devices/pci0000:00/0000:00:15.0/usb1/1-3/1-3.1/1-3.1.1/1-3.1.1:1.1/0003:0557:2419.0002/input/input1
Jul 06 17:25:33 mezquite kernel: hid-generic 0003:0557:2419.0002: input,hidraw1: USB HID v1.00 Mouse [HID 0557:2419] on usb-0000:00:15.0-3.1.1/input1
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:05:00.0: Multiqueue Enabled: Rx Queue count = 2, Tx Queue count = 2 XDP Queue count = 0
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:05:00.0: MAC: 6, PHY: 27, PBA No: 030000-000
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:05:00.0: 3c:ec:ef:00:52:92
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:05:00.0: Intel(R) 10 Gigabit Network Connection
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:05:00.1: Multiqueue Enabled: Rx Queue count = 2, Tx Queue count = 2 XDP Queue count = 0
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:05:00.1: MAC: 6, PHY: 27, PBA No: 030000-000
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:05:00.1: 3c:ec:ef:00:52:93
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:05:00.1: Intel(R) 10 Gigabit Network Connection
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:05:00.0 eno3: renamed from eth2
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:04:00.0 eno1: renamed from eth0
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:05:00.1 eno4: renamed from eth3
Jul 06 17:25:33 mezquite kernel: ixgbe 0000:04:00.1 eno2: renamed from eth1
Jul 06 17:25:33 mezquite kernel: raid6: sse2x4 gen() 5224 MB/s
Jul 06 17:25:33 mezquite kernel: raid6: sse2x4 xor() 1350 MB/s
Jul 06 17:25:33 mezquite kernel: raid6: sse2x2 gen() 5533 MB/s
Jul 06 17:25:33 mezquite kernel: raid6: sse2x2 xor() 3378 MB/s
Jul 06 17:25:33 mezquite kernel: raid6: sse2x1 gen() 4557 MB/s
Jul 06 17:25:33 mezquite kernel: raid6: sse2x1 xor() 2828 MB/s
Jul 06 17:25:33 mezquite kernel: raid6: using algorithm sse2x2 gen() 5533 MB/s
Jul 06 17:25:33 mezquite kernel: raid6: … xor() 3378 MB/s, rmw enabled
Jul 06 17:25:33 mezquite kernel: raid6: using ssse3x2 recovery algorithm
Jul 06 17:25:33 mezquite kernel: xor: measuring software checksum speed
Jul 06 17:25:33 mezquite kernel: prefetch64-sse : 10829 MB/sec
Jul 06 17:25:33 mezquite kernel: generic_sse : 9564 MB/sec
Jul 06 17:25:33 mezquite kernel: xor: using function: prefetch64-sse (10829 MB/sec)
Jul 06 17:25:33 mezquite kernel: async_tx: api initialized (async)
Jul 06 17:25:33 mezquite kernel: Btrfs loaded, crc32c=crc32c-intel
Jul 06 17:25:33 mezquite kernel: BTRFS: device label sdc btrfs devid 2 transid 1292871 /dev/sda1 scanned by btrfs (198)
Jul 06 17:25:33 mezquite kernel: BTRFS: device label sdc btrfs devid 1 transid 1292871 /dev/sde3 scanned by btrfs (198)
Jul 06 17:25:33 mezquite kernel: BTRFS: device label sdc btrfs devid 3 transid 1292871 /dev/sdb1 scanned by btrfs (198)
Jul 06 17:25:33 mezquite kernel: BTRFS: device label sdc btrfs devid 5 transid 1292871 /dev/sdd scanned by btrfs (198)
Jul 06 17:25:33 mezquite kernel: BTRFS: device label sdc btrfs devid 4 transid 1231578 /dev/sdc scanned by btrfs (198)
Jul 06 17:25:33 mezquite kernel: PM: Image not found (code -22)
Jul 06 17:25:33 mezquite kernel: BTRFS info (device sde3): flagging fs with big metadata feature
Jul 06 17:25:33 mezquite kernel: BTRFS info (device sde3): disk space caching is enabled
Jul 06 17:25:33 mezquite kernel: BTRFS info (device sde3): has skinny extents
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 356714037248 wanted 1278602 found 1230341
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 356714053632 wanted 1278602 found 1230341
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 356714184704 wanted 1244774 found 1228844
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 356714119168 wanted 1278602 found 1228844
Jul 06 17:25:33 mezquite kernel: BTRFS info (device sde3): bdev /dev/sda1 errs: wr 2480, rd 593, flush 3, corrupt 0, gen 0
Jul 06 17:25:33 mezquite kernel: BTRFS info (device sde3): bdev /dev/sdc errs: wr 26237150, rd 1064512, flush 360405, corrupt 7217, gen 0
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 820652294144 wanted 1292868 found 1230884
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 821653700608 wanted 1292762 found 1231071
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 820652048384 wanted 1292868 found 1231474
Jul 06 17:25:33 mezquite kernel: Not activating Mandatory Access Control as /sbin/tomoyo-init does not exist.
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 821376942080 wanted 1290550 found 1231251
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 820856668160 wanted 1292639 found 1229255
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): parent transid verify failed on 820795015168 wanted 1268744 found 1230856
Jul 06 17:25:33 mezquite kernel: BTRFS warning (device sde3): csum failed root 5 ino 7136196 off 0 csum 0x8941f998 expected csum 0xe6294bdf mirror 2
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): bdev /dev/sdc errs: wr 26237150, rd 1064512, flush 360405, corrupt 7218, gen 0
Jul 06 17:25:33 mezquite kernel: BTRFS warning (device sde3): csum failed root 5 ino 7136196 off 4096 csum 0x8941f998 expected csum 0x4eb96f4c mirror 2
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): bdev /dev/sdc errs: wr 26237150, rd 1064512, flush 360405, corrupt 7219, gen 0
Jul 06 17:25:33 mezquite kernel: BTRFS warning (device sde3): csum failed root 5 ino 7136196 off 8192 csum 0x8941f998 expected csum 0x5cb573ac mirror 2
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): bdev /dev/sdc errs: wr 26237150, rd 1064512, flush 360405, corrupt 7220, gen 0
Jul 06 17:25:33 mezquite kernel: BTRFS warning (device sde3): csum failed root 5 ino 7136196 off 12288 csum 0x8941f998 expected csum 0x0cdd768a mirror 2
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): bdev /dev/sdc errs: wr 26237150, rd 1064512, flush 360405, corrupt 7221, gen 0
Jul 06 17:25:33 mezquite kernel: BTRFS warning (device sde3): csum failed root 5 ino 7136196 off 974848 csum 0x8941f998 expected csum 0xe4838154 mirror 2
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): bdev /dev/sdc errs: wr 26237150, rd 1064512, flush 360405, corrupt 7222, gen 0
Jul 06 17:25:33 mezquite kernel: BTRFS warning (device sde3): csum failed root 5 ino 7136196 off 1007616 csum 0x8941f998 expected csum 0xe3299c04 mirror 2
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): bdev /dev/sdc errs: wr 26237150, rd 1064512, flush 360405, corrupt 7223, gen 0
Jul 06 17:25:33 mezquite kernel: BTRFS warning (device sde3): csum failed root 5 ino 7136196 off 978944 csum 0x8941f998 expected csum 0xdc12d21b mirror 2
Jul 06 17:25:33 mezquite kernel: BTRFS error (device sde3): bdev /dev/sdc errs: wr 26237150, rd 1064512, flush 360405, corrupt 7224, gen 0

I should clarify the raid situation:

  • filesystem uses btrfs raid1
  • no md
  • no lvm
  • no hardware raid