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[LEE KUAN-YING <2103682@xxxxxxxxxxxxxxxxxx>]

** Also affects: linux-oem-6.11 (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: linux-oem-6.11 (Ubuntu Noble)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2103682

Title:
  ubuntu_btrfs_kernel_fixes failed on N-oem-6.11

Status in ubuntu-kernel-tests:
  New
Status in linux-oem-6.11 package in Ubuntu:
  New
Status in linux-oem-6.11 source package in Noble:
  New

Bug description:
  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

  ...

       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)

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