[ 1441.871455] run fstests btrfs/011 at 2022-09-06 21:15:16
[ 1443.395836] BTRFS: device fsid c2102996-afaf-4d95-8825-bef91394791f devid 1 transid 6 /dev/mapper/vg0-lv7 scanned by mkfs.btrfs (192456)
[ 1443.422812] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1443.422825] BTRFS info (device dm-7): using free space tree
[ 1443.434353] BTRFS info (device dm-7): checking UUID tree
[ 1466.160818] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv6 started
[ 1473.884352] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv6 finished
[ 1473.885144] =============================
[ 1473.885146] WARNING: suspicious RCU usage
[ 1473.885147] 6.0.0-rc4+ #827 Not tainted
[ 1473.885149] -----------------------------
[ 1473.885150] fs/btrfs/dev-replace.c:1005 suspicious rcu_dereference_check() usage!
[ 1473.885151]
other info that might help us debug this:
[ 1473.885152]
rcu_scheduler_active = 2, debug_locks = 1
[ 1473.885154] 1 lock held by btrfs/198575:
[ 1473.885155] #0: ffff9d6052da9b98 (&fs_info->dev_replace.lock_finishing_cancel_unmount){+.+.}-{3:3}, at: btrfs_dev_replace_finishing+0x57/0x780
[ 1473.885172]
stack backtrace:
[ 1473.885173] CPU: 1 PID: 198575 Comm: btrfs Not tainted 6.0.0-rc4+ #827
[ 1473.885176] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014
[ 1473.885177] Call Trace:
[ 1473.885178]
[ 1473.885180] dump_stack_lvl+0x56/0x73
[ 1473.885185] btrfs_dev_replace_finishing+0x66c/0x780
[ 1473.885195] ? btrfs_dev_replace_by_ioctl+0x50a/0x9b0
[ 1473.885197] btrfs_dev_replace_by_ioctl+0x50a/0x9b0
[ 1473.885204] ? lock_release+0x137/0x2d0
[ 1473.885213] btrfs_ioctl+0x23ac/0x2c90
[ 1473.885217] ? _raw_spin_unlock_irq+0x24/0x50
[ 1473.885221] ? lockdep_hardirqs_on+0x7d/0x100
[ 1473.885224] ? _raw_spin_unlock_irq+0x34/0x50
[ 1473.885226] ? do_sigaction+0x113/0x240
[ 1473.885235] ? lock_is_held_type+0xe2/0x140
[ 1473.885239] ? __x64_sys_ioctl+0x88/0xc0
[ 1473.885242] __x64_sys_ioctl+0x88/0xc0
[ 1473.885246] do_syscall_64+0x38/0x90
[ 1473.885250] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 1473.885252] RIP: 0033:0x7f07311210ab
[ 1473.885256] Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 95 bd 0c 00 f7 d8 64 89 01 48
[ 1473.885258] RSP: 002b:00007ffd088365e8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
[ 1473.885260] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f07311210ab
[ 1473.885262] RDX: 00007ffd08837470 RSI: 00000000ca289435 RDI: 0000000000000003
[ 1473.885263] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[ 1473.885264] R10: 0000000000000008 R11: 0000000000000202 R12: 000000000121c4f0
[ 1473.885265] R13: 0000000000000001 R14: 0000000000000000 R15: 00007ffd08838d19
[ 1473.885276]
[ 1476.846475] BTRFS info (device dm-7): scrub: started on devid 1
[ 1477.340322] BTRFS info (device dm-7): scrub: finished on devid 1 with status: 0
[ 1478.003244] BTRFS info (device dm-6): using crc32c (crc32c-intel) checksum algorithm
[ 1478.003272] BTRFS info (device dm-6): using free space tree
[ 1479.166958] BTRFS: device fsid dc9bdb59-9ffd-4e18-97f9-6f9d15662e7e devid 1 transid 6 /dev/mapper/vg0-lv7 scanned by mkfs.btrfs (198666)
[ 1479.197485] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1479.197497] BTRFS info (device dm-7): using free space tree
[ 1479.202165] BTRFS info (device dm-7): checking UUID tree
[ 1501.028769] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv6 started
[ 1505.804479] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv6 finished
[ 1507.439059] BTRFS info (device dm-7): scrub: started on devid 1
[ 1507.896602] BTRFS info (device dm-7): scrub: finished on devid 1 with status: 0
[ 1508.439518] BTRFS info (device dm-6): using crc32c (crc32c-intel) checksum algorithm
[ 1508.439528] BTRFS info (device dm-6): using free space tree
[ 1509.524474] BTRFS: device fsid 39a55502-9dd1-4278-9564-57ab5fd42bad devid 1 transid 6 /dev/mapper/vg0-lv7 scanned by mkfs.btrfs (204861)
[ 1509.546825] BTRFS info: devid 1 device path /dev/mapper/vg0-lv7 changed to /dev/dm-7 scanned by systemd-udevd (204851)
[ 1509.547091] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1509.547099] BTRFS info (device dm-7): using free space tree
[ 1509.549117] BTRFS info: devid 1 device path /dev/dm-7 changed to /dev/mapper/vg0-lv7 scanned by systemd-udevd (204851)
[ 1509.551520] BTRFS info (device dm-7): checking UUID tree
[ 1549.132815] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv6 started
[ 1550.095382] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv6 canceled
[ 1554.374804] =============================
[ 1554.374805] WARNING: suspicious RCU usage
[ 1554.374806] 6.0.0-rc4+ #827 Not tainted
[ 1554.374808] -----------------------------
[ 1554.374809] fs/btrfs/volumes.c:2301 suspicious rcu_dereference_check() usage!
[ 1554.374811]
other info that might help us debug this:
[ 1554.374812]
rcu_scheduler_active = 2, debug_locks = 1
[ 1554.374813] 1 lock held by btrfs/211941:
[ 1554.374815] #0: ffff9d6052cc5b98 (&fs_info->dev_replace.lock_finishing_cancel_unmount){+.+.}-{3:3}, at: btrfs_dev_replace_finishing+0x57/0x780
[ 1554.374826]
stack backtrace:
[ 1554.374828] CPU: 0 PID: 211941 Comm: btrfs Not tainted 6.0.0-rc4+ #827
[ 1554.374830] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014
[ 1554.374832] Call Trace:
[ 1554.374834]
[ 1554.374836] dump_stack_lvl+0x56/0x73
[ 1554.374841] btrfs_destroy_dev_replace_tgtdev.cold+0x70/0x9f
[ 1554.374845] btrfs_dev_replace_finishing+0x204/0x780
[ 1554.374851] ? start_transaction+0xcf/0x690
[ 1554.374857] ? btrfs_dev_replace_by_ioctl+0x50a/0x9b0
[ 1554.374859] btrfs_dev_replace_by_ioctl+0x50a/0x9b0
[ 1554.374866] ? lock_release+0x137/0x2d0
[ 1554.374872] btrfs_ioctl+0x23ac/0x2c90
[ 1554.374876] ? find_held_lock+0x2b/0x80
[ 1554.374880] ? lock_release+0x137/0x2d0
[ 1554.374885] ? lock_is_held_type+0xe2/0x140
[ 1554.374890] ? __x64_sys_ioctl+0x88/0xc0
[ 1554.374892] __x64_sys_ioctl+0x88/0xc0
[ 1554.374896] do_syscall_64+0x38/0x90
[ 1554.374900] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 1554.374902] RIP: 0033:0x7fe38717e0ab
[ 1554.374906] Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 95 bd 0c 00 f7 d8 64 89 01 48
[ 1554.374908] RSP: 002b:00007ffe744e14a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 1554.374911] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe38717e0ab
[ 1554.374912] RDX: 00007ffe744e2330 RSI: 00000000ca289435 RDI: 0000000000000003
[ 1554.374914] RBP: 0000000000000004 R08: 0000000000000002 R09: 00007fe3872144a0
[ 1554.374916] R10: 0000000000001000 R11: 0000000000000246 R12: 00000000023ae4f0
[ 1554.374918] R13: 0000000000000001 R14: 0000000000000000 R15: 00007ffe744e4d19
[ 1554.374935]
[ 1557.384015] BTRFS info (device dm-7): scrub: started on devid 1
[ 1568.937134] BTRFS info (device dm-7): scrub: finished on devid 1 with status: 0
[ 1569.979524] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1569.979534] BTRFS info (device dm-7): using free space tree
[ 1571.735994] BTRFS: device fsid 2166a903-9a14-4bfd-9588-f72dd349030d devid 1 transid 6 /dev/dm-7 scanned by systemd-udevd (211958)
[ 1571.744556] BTRFS: device fsid 2166a903-9a14-4bfd-9588-f72dd349030d devid 2 transid 6 /dev/mapper/vg0-lv6 scanned by mkfs.btrfs (212019)
[ 1571.776748] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1571.776759] BTRFS info (device dm-7): using free space tree
[ 1571.807729] BTRFS info (device dm-7): checking UUID tree
[ 1571.825091] BTRFS info: devid 1 device path /dev/mapper/vg0-lv7 changed to /dev/dm-7 scanned by systemd-udevd (212000)
[ 1571.826950] BTRFS info: devid 1 device path /dev/dm-7 changed to /dev/mapper/vg0-lv7 scanned by systemd-udevd (212000)
[ 1596.567789] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv5 started
[ 1599.918480] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv5 finished
[ 1600.748279] BTRFS info (device dm-7): scrub: started on devid 1
[ 1600.749534] BTRFS info (device dm-7): scrub: started on devid 2
[ 1601.003438] BTRFS info (device dm-7): scrub: finished on devid 1 with status: 0
[ 1602.318779] BTRFS info (device dm-7): scrub: finished on devid 2 with status: 0
[ 1602.695279] BTRFS info (device dm-5): using crc32c (crc32c-intel) checksum algorithm
[ 1602.695289] BTRFS info (device dm-5): using free space tree
[ 1603.040990] BTRFS: device fsid 84a4ca3b-e301-4a1e-aec2-43265b625854 devid 1 transid 6 /dev/mapper/vg0-lv7 scanned by mkfs.btrfs (218221)
[ 1603.042233] BTRFS: device fsid 84a4ca3b-e301-4a1e-aec2-43265b625854 devid 2 transid 6 /dev/mapper/vg0-lv6 scanned by mkfs.btrfs (218221)
[ 1603.067632] BTRFS info: devid 2 device path /dev/mapper/vg0-lv6 changed to /dev/dm-6 scanned by systemd-udevd (218210)
[ 1603.067694] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1603.067702] BTRFS info (device dm-7): using free space tree
[ 1603.069149] BTRFS info: devid 2 device path /dev/dm-6 changed to /dev/mapper/vg0-lv6 scanned by systemd-udevd (218210)
[ 1603.088218] BTRFS info (device dm-7): checking UUID tree
[ 1639.349646] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv5 started
[ 1643.415615] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv5 finished
[ 1644.722644] BTRFS info (device dm-7): scrub: started on devid 1
[ 1644.723505] BTRFS info (device dm-7): scrub: started on devid 2
[ 1645.135547] BTRFS info (device dm-7): scrub: finished on devid 2 with status: 0
[ 1645.403565] BTRFS info (device dm-7): scrub: finished on devid 1 with status: 0
[ 1645.799452] BTRFS info (device dm-5): using crc32c (crc32c-intel) checksum algorithm
[ 1645.799502] BTRFS info (device dm-5): using free space tree
[ 1645.938675] BTRFS info (device dm-5): dev_replace from /dev/mapper/vg0-lv5 (devid 1) to /dev/mapper/vg0-lv7 started
[ 1650.052727] BTRFS info (device dm-5): dev_replace from /dev/mapper/vg0-lv5 (devid 1) to /dev/mapper/vg0-lv7 finished
[ 1651.123541] BTRFS info (device dm-5): scrub: started on devid 1
[ 1651.123853] BTRFS info (device dm-5): scrub: started on devid 2
[ 1651.630958] BTRFS info (device dm-5): scrub: finished on devid 1 with status: 0
[ 1651.707866] BTRFS info (device dm-5): scrub: finished on devid 2 with status: 0
[ 1652.009709] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1652.009719] BTRFS info (device dm-7): using free space tree
[ 1652.524154] BTRFS: device fsid 846a0482-feec-45e9-8b01-a9b70cb917e7 devid 1 transid 6 /dev/mapper/vg0-lv7 scanned by mkfs.btrfs (226466)
[ 1652.524503] BTRFS: device fsid 846a0482-feec-45e9-8b01-a9b70cb917e7 devid 2 transid 6 /dev/mapper/vg0-lv6 scanned by mkfs.btrfs (226466)
[ 1652.524701] BTRFS: device fsid 846a0482-feec-45e9-8b01-a9b70cb917e7 devid 3 transid 6 /dev/mapper/vg0-lv5 scanned by mkfs.btrfs (226466)
[ 1652.525033] BTRFS: device fsid 846a0482-feec-45e9-8b01-a9b70cb917e7 devid 4 transid 6 /dev/mapper/vg0-lv4 scanned by mkfs.btrfs (226466)
[ 1652.566789] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1652.566798] BTRFS info (device dm-7): using free space tree
[ 1652.567014] BTRFS info: devid 3 device path /dev/dm-5 changed to /dev/mapper/vg0-lv5 scanned by systemd-udevd (226452)
[ 1652.569446] BTRFS info: devid 4 device path /dev/mapper/vg0-lv4 changed to /dev/dm-4 scanned by systemd-udevd (226456)
[ 1652.571158] BTRFS info: devid 4 device path /dev/dm-4 changed to /dev/mapper/vg0-lv4 scanned by systemd-udevd (226456)
[ 1652.607635] BTRFS info (device dm-7): checking UUID tree
[ 1681.554058] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv3 started
[ 1685.633413] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv3 finished
[ 1688.919091] BTRFS info (device dm-7): scrub: started on devid 1
[ 1688.919589] BTRFS info (device dm-7): scrub: started on devid 3
[ 1688.921584] BTRFS info (device dm-7): scrub: started on devid 2
[ 1688.924465] BTRFS info (device dm-7): scrub: started on devid 4
[ 1689.363890] BTRFS info (device dm-7): scrub: finished on devid 3 with status: 0
[ 1689.395675] BTRFS info (device dm-7): scrub: finished on devid 1 with status: 0
[ 1689.432748] BTRFS info (device dm-7): scrub: finished on devid 2 with status: 0
[ 1689.479100] BTRFS info (device dm-7): scrub: finished on devid 4 with status: 0
[ 1690.466223] BTRFS info (device dm-3): using crc32c (crc32c-intel) checksum algorithm
[ 1690.466232] BTRFS info (device dm-3): using free space tree
[ 1691.135156] BTRFS info (device dm-3): dev_replace from /dev/mapper/vg0-lv3 (devid 1) to /dev/mapper/vg0-lv7 started
[ 1695.991900] BTRFS info (device dm-3): dev_replace from /dev/mapper/vg0-lv3 (devid 1) to /dev/mapper/vg0-lv7 finished
[ 1699.551769] BTRFS info (device dm-3): scrub: started on devid 1
[ 1699.552442] BTRFS info (device dm-3): scrub: started on devid 2
[ 1699.555237] BTRFS info (device dm-3): scrub: started on devid 4
[ 1699.561906] BTRFS info (device dm-3): scrub: started on devid 3
[ 1700.011981] BTRFS info (device dm-3): scrub: finished on devid 4 with status: 0
[ 1700.039440] BTRFS info (device dm-3): scrub: finished on devid 3 with status: 0
[ 1700.110185] BTRFS info (device dm-3): scrub: finished on devid 1 with status: 0
[ 1700.158968] BTRFS info (device dm-3): scrub: finished on devid 2 with status: 0
[ 1700.912406] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1700.912414] BTRFS info (device dm-7): using free space tree
[ 1702.369100] BTRFS: device fsid 885b1e11-4a07-49c6-a7cb-192a703f7f24 devid 1 transid 6 /dev/mapper/vg0-lv7 scanned by mkfs.btrfs (232732)
[ 1702.391269] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1702.391279] BTRFS info (device dm-7): using free space tree
[ 1702.394231] BTRFS info (device dm-7): checking UUID tree
[ 1722.928211] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv6 started
[ 1727.641987] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv6 finished
[ 1728.496364] BTRFS info (device dm-7): scrub: started on devid 1
[ 1729.073359] BTRFS info (device dm-7): scrub: finished on devid 1 with status: 0
[ 1729.458333] BTRFS info (device dm-6): using crc32c (crc32c-intel) checksum algorithm
[ 1729.458342] BTRFS info (device dm-6): using free space tree
[ 1729.807303] BTRFS: device fsid 0ce5386c-6dd7-4f9b-8067-f2a91de79709 devid 1 transid 6 /dev/mapper/vg0-lv7 scanned by mkfs.btrfs (238929)
[ 1729.832163] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1729.832173] BTRFS info (device dm-7): using free space tree
[ 1729.835459] BTRFS info (device dm-7): checking UUID tree
[ 1758.323263] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv6 started
[ 1774.377196] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv6 finished
[ 1782.001576] BTRFS info (device dm-7): scrub: started on devid 1
[ 1783.570480] BTRFS info (device dm-7): scrub: finished on devid 1 with status: 0
[ 1784.753502] BTRFS info (device dm-6): using crc32c (crc32c-intel) checksum algorithm
[ 1784.753513] BTRFS info (device dm-6): using free space tree
[ 1785.912456] BTRFS: device fsid d5acf4d2-e169-4329-9198-d7f54d686bca devid 1 transid 6 /dev/dm-7 scanned by systemd-udevd (245111)
[ 1785.918125] BTRFS: device fsid d5acf4d2-e169-4329-9198-d7f54d686bca devid 2 transid 6 /dev/mapper/vg0-lv6 scanned by mkfs.btrfs (245129)
[ 1785.940621] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1785.940631] BTRFS info (device dm-7): using free space tree
[ 1785.947172] BTRFS info (device dm-7): checking UUID tree
[ 1785.971412] BTRFS info: devid 1 device path /dev/mapper/vg0-lv7 changed to /dev/dm-7 scanned by systemd-udevd (245111)
[ 1785.972725] BTRFS info: devid 1 device path /dev/dm-7 changed to /dev/mapper/vg0-lv7 scanned by systemd-udevd (245111)
[ 1811.274877] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv5 started
[ 1817.548725] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv5 finished
[ 1821.689417] BTRFS info (device dm-7): scrub: started on devid 1
[ 1821.690083] BTRFS info (device dm-7): scrub: started on devid 2
[ 1823.500106] BTRFS info (device dm-7): scrub: finished on devid 2 with status: 0
[ 1823.516513] BTRFS info (device dm-7): scrub: finished on devid 1 with status: 0
[ 1824.430699] BTRFS info (device dm-5): using crc32c (crc32c-intel) checksum algorithm
[ 1824.430710] BTRFS info (device dm-5): using free space tree
[ 1824.552242] BTRFS info (device dm-5): dev_replace from /dev/mapper/vg0-lv5 (devid 1) to /dev/mapper/vg0-lv7 started
[ 1832.627897] BTRFS info (device dm-5): dev_replace from /dev/mapper/vg0-lv5 (devid 1) to /dev/mapper/vg0-lv7 finished
[ 1836.403957] BTRFS info (device dm-5): scrub: started on devid 1
[ 1836.404313] BTRFS info (device dm-5): scrub: started on devid 2
[ 1838.040770] BTRFS info (device dm-5): scrub: finished on devid 2 with status: 0
[ 1838.047881] BTRFS info (device dm-5): scrub: finished on devid 1 with status: 0
[ 1838.494067] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1838.494077] BTRFS info (device dm-7): using free space tree
[ 1839.801276] BTRFS: device fsid a8d1eb67-22a1-4a61-a343-773478b01b08 devid 1 transid 6 /dev/mapper/vg0-lv7 scanned by mkfs.btrfs (251399)
[ 1839.801581] BTRFS: device fsid a8d1eb67-22a1-4a61-a343-773478b01b08 devid 2 transid 6 /dev/mapper/vg0-lv6 scanned by mkfs.btrfs (251399)
[ 1839.802537] BTRFS: device fsid a8d1eb67-22a1-4a61-a343-773478b01b08 devid 3 transid 6 /dev/mapper/vg0-lv5 scanned by mkfs.btrfs (251399)
[ 1839.837757] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1839.837786] BTRFS info (device dm-7): using free space tree
[ 1839.843388] BTRFS info: devid 3 device path /dev/mapper/vg0-lv5 changed to /dev/dm-5 scanned by systemd-udevd (251386)
[ 1839.844783] BTRFS info: devid 3 device path /dev/dm-5 changed to /dev/mapper/vg0-lv5 scanned by systemd-udevd (251386)
[ 1839.871872] BTRFS info (device dm-7): checking UUID tree
[ 1863.566654] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv4 started
[ 1868.229464] BTRFS info (device dm-7): dev_replace from /dev/mapper/vg0-lv7 (devid 1) to /dev/mapper/vg0-lv4 finished
[ 1871.478354] BTRFS info (device dm-7): scrub: started on devid 1
[ 1871.478978] BTRFS info (device dm-7): scrub: started on devid 3
[ 1871.484541] BTRFS info (device dm-7): scrub: started on devid 2
[ 1874.541854] BTRFS info (device dm-7): scrub: finished on devid 1 with status: 0
[ 1874.624099] BTRFS info (device dm-7): scrub: finished on devid 3 with status: 0
[ 1874.638432] BTRFS info (device dm-7): scrub: finished on devid 2 with status: 0
[ 1875.475587] BTRFS info (device dm-4): using crc32c (crc32c-intel) checksum algorithm
[ 1875.475596] BTRFS info (device dm-4): using free space tree
[ 1875.919046] BTRFS info (device dm-4): dev_replace from /dev/mapper/vg0-lv4 (devid 1) to /dev/mapper/vg0-lv7 started
[ 1883.640292] BTRFS info (device dm-4): dev_replace from /dev/mapper/vg0-lv4 (devid 1) to /dev/mapper/vg0-lv7 finished
[ 1889.049002] BTRFS info (device dm-4): scrub: started on devid 1
[ 1889.051071] BTRFS info (device dm-4): scrub: started on devid 2
[ 1889.052140] BTRFS info (device dm-4): scrub: started on devid 3
[ 1893.487555] BTRFS info (device dm-4): scrub: finished on devid 2 with status: 0
[ 1893.544452] BTRFS info (device dm-4): scrub: finished on devid 3 with status: 0
[ 1893.551909] BTRFS info (device dm-4): scrub: finished on devid 1 with status: 0
[ 1893.958319] BTRFS info (device dm-7): using crc32c (crc32c-intel) checksum algorithm
[ 1893.958332] BTRFS info (device dm-7): using free space tree