Here is the output of a manual test against -1016:
Invoking test 671415b7db49f62896f0b6d50fc4f312a0512983
fix 671415b7db49f62896f0b6d50fc4f312a0512983
Btrfs: fix deadlock caused by the nested chunk allocation
Steps to reproduce:
# mkfs.btrfs -m raid1 <disk1> <disk2>
# btrfstune -S 1 <disk1>
# mount <disk1> <mnt>
# btrfs device add <disk3> <disk4> <mnt>
# mount -o remount,rw <mnt>
# dd if=/dev/zero of=<mnt>/tmpfile bs=1M count=1
Deadlock happened.
btrfs-progs v6.6.3
See https://btrfs.readthedocs.io for more information.
Performing full device TRIM /dev/loop1 (1.00GiB) ...
Performing full device TRIM /dev/loop0 (1.00GiB) ...
NOTE: several default settings have changed in version 5.15, please make sure
this does not affect your deployments:
- DUP for metadata (-m dup)
- enabled no-holes (-O no-holes)
- enabled free-space-tree (-R free-space-tree)
Label: (null)
UUID: 17295867-10f8-4117-b76b-9534f081ce6d
Node size: 16384
Sector size: 4096
Filesystem size: 2.00GiB
Block group profiles:
Data: single 8.00MiB
Metadata: RAID1 102.38MiB
System: RAID1 8.00MiB
SSD detected: no
Zoned device: no
Incompat features: extref, skinny-metadata, no-holes, free-space-tree
Runtime features: free-space-tree
Checksum: crc32c
Number of devices: 2
Devices:
ID SIZE PATH
1 1.00GiB /dev/loop0
2 1.00GiB /dev/loop1
WARNING: Multiple block group profiles detected, see 'man btrfs(5)'
WARNING: Metadata: single, raid1
Performing full device TRIM /dev/loop2 (1.00GiB) ...
Performing full device TRIM /dev/loop3 (1.00GiB) ...
PASS: 671415b7db49f62896f0b6d50fc4f312a0512983
dmesg output:
[ 142.776408] Invoking test 671415b7db49f62896f0b6d50fc4f312a0512983
[ 142.787042] loop0: detected capacity change from 0 to 2097152
[ 142.789696] loop1: detected capacity change from 0 to 2097152
[ 142.794442] loop2: detected capacity change from 0 to 2097152
[ 142.798575] loop3: detected capacity change from 0 to 2097152
[ 142.876178] BTRFS: device fsid 17295867-10f8-4117-b76b-9534f081ce6d devid 1
transid 6 /dev/loop0 (7:0) scanned by mkfs.btrfs (1382)
[ 142.876226] BTRFS: device fsid 17295867-10f8-4117-b76b-9534f081ce6d devid 2
transid 6 /dev/loop1 (7:1) scanned by mkfs.btrfs (1382)
[ 142.910940] BTRFS info (device loop0): first mount of filesystem
17295867-10f8-4117-b76b-9534f081ce6d
[ 142.910959] BTRFS info (device loop0): using crc32c (crc32c-intel) checksum
algorithm
[ 142.910964] BTRFS info (device loop0): using free-space-tree
[ 142.948708] BTRFS info (device loop0): relocating block group 255197184
flags system
[ 142.955726] BTRFS info (device loop0): relocating block group 22020096 flags
system|raid1
[ 142.963884] BTRFS info (device loop0): disk added /dev/loop2
[ 142.980313] BTRFS info (device loop0): disk added /dev/loop3
[ 142.996461] BTRFS info (device loop0): last unmount of filesystem
7620511e-f685-487f-8ff0-dc63c88670a8
[ 143.007859] Test 671415b7db49f62896f0b6d50fc4f312a0512983 returned 0
** Tags added: 6.11 noble oem sru-20250210 ubuntu-btrfs-kernel-fixes
** Description changed:
Label: (null)
UUID: 95a500a1-e39f-4257-97c0-c0580bdbe736
Node size: 16384
Sector size: 4096
Filesystem size: 2.00GiB
Block group profiles:
- Data: single 8.00MiB
- Metadata: RAID1 102.38MiB
- System: RAID1 8.00MiB
+ Data: single 8.00MiB
+ Metadata: RAID1 102.38MiB
+ System: RAID1 8.00MiB
SSD detected: no
Zoned device: no
Incompat features: extref, skinny-metadata, no-holes, free-space-tree
Runtime features: free-space-tree
Checksum: crc32c
Number of devices: 2
Devices:
- ID SIZE PATH
- 1 1.00GiB /dev/loop0
- 2 1.00GiB /dev/loop1
+ ID SIZE PATH
+ 1 1.00GiB /dev/loop0
+ 2 1.00GiB /dev/loop1
ERROR: error adding device '/dev/loop3': Read-only file system
WARNING: Multiple block group profiles detected, see 'man btrfs(5)'
WARNING: Metadata: single, raid1
Performing full device TRIM /dev/loop2 (1.00GiB) ...
Performing full device TRIM /dev/loop3 (1.00GiB) ...
btrfs device add /dev/loop2 /dev/loop3
/tmp/mnt-671415b7db49f62896f0b6d50fc4f312a0512983 failed
...
- Steps to reproduce:
- # mkfs.btrfs -m raid1
- # btrfstune -S 1
- # mount
- # btrfs device add
- # mount -o remount,rw
- # dd if=/dev/zero of=/tmpfile bs=1M count=1
- Deadlock happened.
-
- btrfs-progs v6.6.3
- See https://btrfs.readthedocs.io for more information.
-
- Performing full device TRIM /dev/loop0 (1.00GiB) ...
- Performing full device TRIM /dev/loop1 (1.00GiB) ...
- NOTE: several default settings have changed in version 5.15, please make sure
- this does not affect your deployments:
- - DUP for metadata (-m dup)
- - enabled no-holes (-O no-holes)
- - enabled free-space-tree (-R free-space-tree)
-
- Label: (null)
- UUID: 95a500a1-e39f-4257-97c0-c0580bdbe736
- Node size: 16384
- Sector size: 4096
- Filesystem size: 2.00GiB
- Block group profiles:
- Data: single 8.00MiB
- Metadata: RAID1 102.38MiB
- System: RAID1 8.00MiB
- SSD detected: no
- Zoned device: no
- Incompat features: extref, skinny-metadata, no-holes, free-space-tree
- Runtime features: free-space-tree
- Checksum: crc32c
- Number of devices: 2
- Devices:
- ID SIZE PATH
- 1 1.00GiB /dev/loop0
- 2 1.00GiB /dev/loop1
-
- ERROR: error adding device '/dev/loop3': Read-only file system
- WARNING: Multiple block group profiles detected, see 'man btrfs(5)'
- WARNING: Metadata: single, raid1
- Performing full device TRIM /dev/loop2 (1.00GiB) ...
- Performing full device TRIM /dev/loop3 (1.00GiB) ...
- btrfs device add /dev/loop2 /dev/loop3
/tmp/mnt-671415b7db49f62896f0b6d50fc4f312a0512983 failed
-
- FAIL: 671415b7db49f62896f0b6d50fc4f312a0512983 (ret=1)
+ Steps to reproduce:
+ # mkfs.btrfs -m raid1
+ # btrfstune -S 1
+ # mount
+ # btrfs device add
+ # mount -o remount,rw
+ # dd if=/dev/zero of=/tmpfile bs=1M count=1
+ Deadlock happened.
+
+ btrfs-progs v6.6.3
+ See https://btrfs.readthedocs.io for more information.
+
+ Performing full device TRIM /dev/loop0 (1.00GiB) ...
+ Performing full device TRIM /dev/loop1 (1.00GiB) ...
+ NOTE: several default settings have changed in version 5.15, please make sure
+ this does not affect your deployments:
+ - DUP for metadata (-m dup)
+ - enabled no-holes (-O no-holes)
+ - enabled free-space-tree (-R free-space-tree)
+
+ Label: (null)
+ UUID: 95a500a1-e39f-4257-97c0-c0580bdbe736
+ Node size: 16384
+ Sector size: 4096
+ Filesystem size: 2.00GiB
+ Block group profiles:
+ Data: single 8.00MiB
+ Metadata: RAID1 102.38MiB
+ System: RAID1 8.00MiB
+ SSD detected: no
+ Zoned device: no
+ Incompat features: extref, skinny-metadata, no-holes, free-space-tree
+ Runtime features: free-space-tree
+ Checksum: crc32c
+ Number of devices: 2
+ Devices:
+ ID SIZE PATH
+ 1 1.00GiB /dev/loop0
+ 2 1.00GiB /dev/loop1
+
+ ERROR: error adding device '/dev/loop3': Read-only file system
+ WARNING: Multiple block group profiles detected, see 'man btrfs(5)'
+ WARNING: Metadata: single, raid1
+ Performing full device TRIM /dev/loop2 (1.00GiB) ...
+ Performing full device TRIM /dev/loop3 (1.00GiB) ...
+ btrfs device add /dev/loop2 /dev/loop3
/tmp/mnt-671415b7db49f62896f0b6d50fc4f312a0512983 failed
+
+ FAIL: 671415b7db49f62896f0b6d50fc4f312a0512983 (ret=1)
+
+ dmesg output from a manual test:
+ [ 113.423686] Invoking test 671415b7db49f62896f0b6d50fc4f312a0512983
+ [ 113.434257] loop0: detected capacity change from 0 to 2097152
+ [ 113.437345] loop1: detected capacity change from 0 to 2097152
+ [ 113.440622] loop2: detected capacity change from 0 to 2097152
+ [ 113.447844] loop3: detected capacity change from 0 to 2097152
+ [ 113.520515] BTRFS: device fsid 821f9874-df4d-4e70-a10e-35c48662fc21 devid
1 transid 6 /dev/loop0 (7:0) scanned by mkfs.btrfs (1878)
+ [ 113.520627] BTRFS: device fsid 821f9874-df4d-4e70-a10e-35c48662fc21 devid
2 transid 6 /dev/loop1 (7:1) scanned by mkfs.btrfs (1878)
+ [ 113.554798] BTRFS info (device loop0): first mount of filesystem
821f9874-df4d-4e70-a10e-35c48662fc21
+ [ 113.554827] BTRFS info (device loop0): using crc32c (crc32c-intel)
checksum algorithm
+ [ 113.554832] BTRFS info (device loop0): using free-space-tree
+ [ 113.591732] BTRFS info (device loop0): relocating block group 255197184
flags system
+ [ 113.597470] BTRFS info (device loop0): found 1 extents, stage: move data
extents
+ [ 113.601712] BTRFS info (device loop0): relocating block group 22020096
flags system|raid1
+ [ 113.607623] BTRFS info (device loop0): disk added /dev/loop2
+ [ 113.621211] Test 671415b7db49f62896f0b6d50fc4f312a0512983 returned 0
+ [ 123.646494] BTRFS info (device loop0): last unmount of filesystem
9666e6e9-6894-4493-bb04-79293b02fc15
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https://bugs.launchpad.net/bugs/2103682
Title:
ubuntu_btrfs_kernel_fixes failed on N-oem-6.11
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