loop2: detected capacity change from 0 to 32768
[  568.527240][T10188] btrfs: Deprecated parameter 'usebackuproot'
[  568.527260][T10188] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  568.535141][T10188] BTRFS info: device /dev/loop2 (7:2) using temp-fsid c8699879-e44d-4be1-b3b5-3d8435c65bb4
[  568.535199][T10188] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.228 (10188)
[  568.560392][T10188] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  568.560424][T10188] BTRFS info (device loop2): using crc32c checksum algorithm
[  568.560450][T10188] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  568.705080][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  568.705231][T10188] BTRFS error (device loop2): failed to load root extent
[  568.705266][T10188] BTRFS warning (device loop2): try to load backup roots slot 1
[  568.705533][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  568.707320][T10188] BTRFS warning (device loop2): couldn't read tree root
[  568.707349][T10188] BTRFS warning (device loop2): try to load backup roots slot 2
[  568.708524][   T68] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  568.709420][T10188] BTRFS warning (device loop2): couldn't read tree root
[  568.709439][T10188] BTRFS warning (device loop2): try to load backup roots slot 3
[  568.843841][T10188] BTRFS info (device loop2): rebuilding free space tree
[  568.868753][T10188] BTRFS info (device loop2): disabling free space tree
[  568.868823][T10188] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  568.868847][T10188] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  568.878643][T10188] BTRFS info (device loop2): checking UUID tree
[  568.879196][T10188] BTRFS info (device loop2): enabling ssd optimizations
[  568.879214][T10188] BTRFS info (device loop2): disabling tree log
[  568.879229][T10188] BTRFS info (device loop2): turning on flush-on-commit
[  568.879243][T10188] BTRFS info (device loop2): turning on async discard
[  568.879256][T10188] BTRFS info (device loop2): enabling disk space caching
[  568.879270][T10188] BTRFS info (device loop2): force clearing of disk cache
[  568.879285][T10188] BTRFS info (device loop2): trying to use backup root at mount time
[  568.879302][T10188] BTRFS info (device loop2): use zstd compression, level 3
[  569.065027][ T9360] BTRFS info (device loop2): last unmount of filesystem c8699879-e44d-4be1-b3b5-3d8435c65bb4
[  569.514256][T10207] loop2: detected capacity change from 0 to 32768
[  569.517538][T10207] btrfs: Deprecated parameter 'usebackuproot'
[  569.517557][T10207] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  569.519536][T10207] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 4e97edd6-1e2e-409e-8f67-66aeb66a6cde
[  569.519593][T10207] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.229 (10207)
[  569.584103][T10207] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  569.584133][T10207] BTRFS info (device loop2): using crc32c checksum algorithm
[  569.584159][T10207] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  569.689674][T10207] BTRFS error (device loop2): failed to load root extent
[  569.689729][T10207] BTRFS warning (device loop2): try to load backup roots slot 1
[  569.690166][T10207] BTRFS warning (device loop2): couldn't read tree root
[  569.690185][T10207] BTRFS warning (device loop2): try to load backup roots slot 2
[  569.690525][   T68] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  569.690645][T10207] BTRFS warning (device loop2): couldn't read tree root
[  569.690661][T10207] BTRFS warning (device loop2): try to load backup roots slot 3
[  569.786200][T10207] BTRFS info (device loop2): rebuilding free space tree
[  569.848129][T10207] BTRFS info (device loop2): disabling free space tree
[  569.848209][T10207] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  569.848230][T10207] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  569.897605][T10207] BTRFS info (device loop2): checking UUID tree
[  569.898071][T10207] BTRFS info (device loop2): enabling ssd optimizations
[  569.898091][T10207] BTRFS info (device loop2): disabling tree log
[  569.898104][T10207] BTRFS info (device loop2): turning on flush-on-commit
[  569.898118][T10207] BTRFS info (device loop2): turning on async discard
[  569.898132][T10207] BTRFS info (device loop2): enabling disk space caching
[  569.898146][T10207] BTRFS info (device loop2): force clearing of disk cache
[  569.898161][T10207] BTRFS info (device loop2): trying to use backup root at mount time
[  569.898176][T10207] BTRFS info (device loop2): use zstd compression, level 3
[  570.153945][ T9360] BTRFS info (device loop2): last unmount of filesystem 4e97edd6-1e2e-409e-8f67-66aeb66a6cde
[  570.633601][T10228] loop2: detected capacity change from 0 to 32768
[  570.635241][T10228] btrfs: Deprecated parameter 'usebackuproot'
[  570.635266][T10228] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  570.635947][T10228] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 99dd21eb-0129-4cbc-844a-f7be1f89690e
[  570.636003][T10228] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.230 (10228)
[  570.647570][T10228] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  570.647601][T10228] BTRFS info (device loop2): using crc32c checksum algorithm
[  570.647629][T10228] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  570.759516][ T1529] btrfs_validate_extent_buffer: 2 callbacks suppressed
[  570.759537][ T1529] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  570.759629][T10228] BTRFS error (device loop2): failed to load root extent
[  570.759662][T10228] BTRFS warning (device loop2): try to load backup roots slot 1
[  570.759967][ T1529] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  570.823000][T10228] BTRFS warning (device loop2): couldn't read tree root
[  570.823024][T10228] BTRFS warning (device loop2): try to load backup roots slot 2
[  570.823357][   T13] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  570.823484][T10228] BTRFS warning (device loop2): couldn't read tree root
[  570.823499][T10228] BTRFS warning (device loop2): try to load backup roots slot 3
[  570.882762][T10228] BTRFS info (device loop2): rebuilding free space tree
[  570.915003][T10228] BTRFS info (device loop2): disabling free space tree
[  570.915074][T10228] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  570.915095][T10228] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  570.944168][T10228] BTRFS info (device loop2): checking UUID tree
[  570.944719][T10228] BTRFS info (device loop2): enabling ssd optimizations
[  570.944737][T10228] BTRFS info (device loop2): disabling tree log
[  570.944750][T10228] BTRFS info (device loop2): turning on flush-on-commit
[  570.944763][T10228] BTRFS info (device loop2): turning on async discard
[  570.944775][T10228] BTRFS info (device loop2): enabling disk space caching
[  570.944788][T10228] BTRFS info (device loop2): force clearing of disk cache
[  570.944803][T10228] BTRFS info (device loop2): trying to use backup root at mount time
[  570.944817][T10228] BTRFS info (device loop2): use zstd compression, level 3
[  571.189265][ T9360] BTRFS info (device loop2): last unmount of filesystem 99dd21eb-0129-4cbc-844a-f7be1f89690e
[  571.662616][T10249] loop2: detected capacity change from 0 to 32768
[  571.663714][T10249] btrfs: Deprecated parameter 'usebackuproot'
[  571.663740][T10249] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  571.666178][T10249] BTRFS info: device /dev/loop2 (7:2) using temp-fsid a8daba0a-2772-4e76-a411-91db3eace84f
[  571.666236][T10249] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.231 (10249)
[  571.719159][T10249] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  571.719190][T10249] BTRFS info (device loop2): using crc32c checksum algorithm
[  571.719230][T10249] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  571.879701][ T1529] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  571.879848][T10249] BTRFS error (device loop2): failed to load root extent
[  571.879883][T10249] BTRFS warning (device loop2): try to load backup roots slot 1
[  571.880186][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  571.880541][T10249] BTRFS warning (device loop2): couldn't read tree root
[  571.880560][T10249] BTRFS warning (device loop2): try to load backup roots slot 2
[  571.880873][ T5864] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  571.880997][T10249] BTRFS warning (device loop2): couldn't read tree root
[  571.881014][T10249] BTRFS warning (device loop2): try to load backup roots slot 3
[  571.895492][T10249] BTRFS info (device loop2): rebuilding free space tree
[  571.975297][T10249] BTRFS info (device loop2): disabling free space tree
[  571.975438][T10249] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  571.975462][T10249] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  571.994478][T10249] BTRFS info (device loop2): checking UUID tree
[  571.996519][T10249] BTRFS info (device loop2): enabling ssd optimizations
[  571.996541][T10249] BTRFS info (device loop2): disabling tree log
[  571.996555][T10249] BTRFS info (device loop2): turning on flush-on-commit
[  571.996569][T10249] BTRFS info (device loop2): turning on async discard
[  571.996583][T10249] BTRFS info (device loop2): enabling disk space caching
[  571.996597][T10249] BTRFS info (device loop2): force clearing of disk cache
[  571.996611][T10249] BTRFS info (device loop2): trying to use backup root at mount time
[  571.996626][T10249] BTRFS info (device loop2): use zstd compression, level 3
2026/05/26 00:47:13 executed programs: 217
[  572.223564][ T9360] BTRFS info (device loop2): last unmount of filesystem a8daba0a-2772-4e76-a411-91db3eace84f
[  573.101417][T10271] loop2: detected capacity change from 0 to 32768
[  573.102921][T10271] btrfs: Deprecated parameter 'usebackuproot'
[  573.102939][T10271] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  573.107231][T10271] BTRFS info: device /dev/loop2 (7:2) using temp-fsid ac42a772-2503-49f1-8960-2918c04dc06b
[  573.107289][T10271] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.233 (10271)
[  573.121355][T10271] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  573.121398][T10271] BTRFS info (device loop2): using crc32c checksum algorithm
[  573.121425][T10271] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  573.216553][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  573.217439][T10271] BTRFS error (device loop2): failed to load root extent
[  573.217481][T10271] BTRFS warning (device loop2): try to load backup roots slot 1
[  573.217774][ T1526] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  573.217901][T10271] BTRFS warning (device loop2): couldn't read tree root
[  573.217918][T10271] BTRFS warning (device loop2): try to load backup roots slot 2
[  573.279737][ T5864] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  573.299798][T10271] BTRFS warning (device loop2): couldn't read tree root
[  573.299822][T10271] BTRFS warning (device loop2): try to load backup roots slot 3
[  573.338708][T10271] BTRFS info (device loop2): rebuilding free space tree
[  573.471810][T10271] BTRFS info (device loop2): disabling free space tree
[  573.471900][T10271] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  573.471923][T10271] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  573.488919][T10271] BTRFS info (device loop2): checking UUID tree
[  573.489497][T10271] BTRFS info (device loop2): enabling ssd optimizations
[  573.489516][T10271] BTRFS info (device loop2): disabling tree log
[  573.489534][T10271] BTRFS info (device loop2): turning on flush-on-commit
[  573.489548][T10271] BTRFS info (device loop2): turning on async discard
[  573.489562][T10271] BTRFS info (device loop2): enabling disk space caching
[  573.489576][T10271] BTRFS info (device loop2): force clearing of disk cache
[  573.489590][T10271] BTRFS info (device loop2): trying to use backup root at mount time
[  573.489605][T10271] BTRFS info (device loop2): use zstd compression, level 3
[  573.793693][ T9360] BTRFS info (device loop2): last unmount of filesystem ac42a772-2503-49f1-8960-2918c04dc06b
[  574.298836][T10291] loop2: detected capacity change from 0 to 32768
[  574.299839][T10291] btrfs: Deprecated parameter 'usebackuproot'
[  574.299857][T10291] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  574.300816][T10291] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 7d488a35-e09f-4204-bbc7-11675f1e9c98
[  574.300869][T10291] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.234 (10291)
[  574.336995][T10291] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  574.337028][T10291] BTRFS info (device loop2): using crc32c checksum algorithm
[  574.337056][T10291] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  574.408634][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  574.408791][T10291] BTRFS error (device loop2): failed to load root extent
[  574.408826][T10291] BTRFS warning (device loop2): try to load backup roots slot 1
[  574.409459][   T68] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  574.409873][T10291] BTRFS warning (device loop2): couldn't read tree root
[  574.409891][T10291] BTRFS warning (device loop2): try to load backup roots slot 2
[  574.410522][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  574.410632][T10291] BTRFS warning (device loop2): couldn't read tree root
[  574.410648][T10291] BTRFS warning (device loop2): try to load backup roots slot 3
[  574.522814][T10291] BTRFS info (device loop2): rebuilding free space tree
[  574.619359][T10291] BTRFS info (device loop2): disabling free space tree
[  574.619450][T10291] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  574.619473][T10291] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  574.631804][T10291] BTRFS info (device loop2): checking UUID tree
[  574.634306][T10291] BTRFS info (device loop2): enabling ssd optimizations
[  574.634328][T10291] BTRFS info (device loop2): disabling tree log
[  574.634343][T10291] BTRFS info (device loop2): turning on flush-on-commit
[  574.634370][T10291] BTRFS info (device loop2): turning on async discard
[  574.634384][T10291] BTRFS info (device loop2): enabling disk space caching
[  574.634399][T10291] BTRFS info (device loop2): force clearing of disk cache
[  574.634413][T10291] BTRFS info (device loop2): trying to use backup root at mount time
[  574.634429][T10291] BTRFS info (device loop2): use zstd compression, level 3
[  574.863533][ T9360] BTRFS info (device loop2): last unmount of filesystem 7d488a35-e09f-4204-bbc7-11675f1e9c98
[  575.413291][T10310] loop2: detected capacity change from 0 to 32768
[  575.414321][T10310] btrfs: Deprecated parameter 'usebackuproot'
[  575.414339][T10310] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  575.417855][T10310] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 92f734bf-89b4-4c40-a1a3-49889509538c
[  575.417931][T10310] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.235 (10310)
[  575.468473][T10310] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  575.468505][T10310] BTRFS info (device loop2): using crc32c checksum algorithm
[  575.468530][T10310] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  575.589789][ T1526] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  575.592124][T10310] BTRFS error (device loop2): failed to load root extent
[  575.592167][T10310] BTRFS warning (device loop2): try to load backup roots slot 1
[  575.593036][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  575.593170][T10310] BTRFS warning (device loop2): couldn't read tree root
[  575.593187][T10310] BTRFS warning (device loop2): try to load backup roots slot 2
[  575.593461][ T5861] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  575.593590][T10310] BTRFS warning (device loop2): couldn't read tree root
[  575.593605][T10310] BTRFS warning (device loop2): try to load backup roots slot 3
[  575.607924][T10310] BTRFS info (device loop2): rebuilding free space tree
[  575.660140][T10310] BTRFS info (device loop2): disabling free space tree
[  575.660229][T10310] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  575.660252][T10310] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  575.665994][T10310] BTRFS info (device loop2): checking UUID tree
[  575.666993][T10310] BTRFS info (device loop2): enabling ssd optimizations
[  575.667012][T10310] BTRFS info (device loop2): disabling tree log
[  575.667026][T10310] BTRFS info (device loop2): turning on flush-on-commit
[  575.667040][T10310] BTRFS info (device loop2): turning on async discard
[  575.667055][T10310] BTRFS info (device loop2): enabling disk space caching
[  575.667069][T10310] BTRFS info (device loop2): force clearing of disk cache
[  575.667083][T10310] BTRFS info (device loop2): trying to use backup root at mount time
[  575.667098][T10310] BTRFS info (device loop2): use zstd compression, level 3
[  575.914722][ T9360] BTRFS info (device loop2): last unmount of filesystem 92f734bf-89b4-4c40-a1a3-49889509538c
[  576.391597][T10329] loop2: detected capacity change from 0 to 32768
[  576.393315][T10329] btrfs: Deprecated parameter 'usebackuproot'
[  576.393334][T10329] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  576.394047][T10329] BTRFS info: device /dev/loop2 (7:2) using temp-fsid a4abe91d-5869-4677-abb7-66c537c6edcf
[  576.394104][T10329] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.236 (10329)
[  576.449888][T10329] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  576.449930][T10329] BTRFS info (device loop2): using crc32c checksum algorithm
[  576.449957][T10329] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  576.570270][   T68] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  576.570419][T10329] BTRFS error (device loop2): failed to load root extent
[  576.570455][T10329] BTRFS warning (device loop2): try to load backup roots slot 1
[  576.570764][   T68] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  576.571764][T10329] BTRFS warning (device loop2): couldn't read tree root
[  576.571785][T10329] BTRFS warning (device loop2): try to load backup roots slot 2
[  576.572060][ T5861] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  576.572138][T10329] BTRFS warning (device loop2): couldn't read tree root
[  576.572170][T10329] BTRFS warning (device loop2): try to load backup roots slot 3
[  576.683415][T10329] BTRFS info (device loop2): rebuilding free space tree
[  576.707193][T10329] BTRFS info (device loop2): disabling free space tree
[  576.707271][T10329] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  576.707294][T10329] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  576.717031][T10329] BTRFS info (device loop2): checking UUID tree
[  576.718015][T10329] BTRFS info (device loop2): enabling ssd optimizations
[  576.718036][T10329] BTRFS info (device loop2): disabling tree log
[  576.718051][T10329] BTRFS info (device loop2): turning on flush-on-commit
[  576.718064][T10329] BTRFS info (device loop2): turning on async discard
[  576.718078][T10329] BTRFS info (device loop2): enabling disk space caching
[  576.718093][T10329] BTRFS info (device loop2): force clearing of disk cache
[  576.718105][T10329] BTRFS info (device loop2): trying to use backup root at mount time
[  576.718120][T10329] BTRFS info (device loop2): use zstd compression, level 3
[  576.953500][ T9360] BTRFS info (device loop2): last unmount of filesystem a4abe91d-5869-4677-abb7-66c537c6edcf
[  577.506778][T10349] loop2: detected capacity change from 0 to 32768
[  577.510053][T10349] btrfs: Deprecated parameter 'usebackuproot'
[  577.510074][T10349] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  577.512293][T10349] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 4d308b33-8a5d-4406-ab80-f7292b06b96c
[  577.544896][T10349] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.237 (10349)
[  577.570093][T10349] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  577.570124][T10349] BTRFS info (device loop2): using crc32c checksum algorithm
[  577.570150][T10349] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  577.680181][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  577.680308][T10349] BTRFS error (device loop2): failed to load root extent
[  577.680341][T10349] BTRFS warning (device loop2): try to load backup roots slot 1
[  577.680642][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  577.680748][T10349] BTRFS warning (device loop2): couldn't read tree root
[  577.680765][T10349] BTRFS warning (device loop2): try to load backup roots slot 2
[  577.681063][ T5861] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  577.755579][T10349] BTRFS warning (device loop2): couldn't read tree root
[  577.755601][T10349] BTRFS warning (device loop2): try to load backup roots slot 3
[  577.827856][T10349] BTRFS info (device loop2): rebuilding free space tree
[  577.842822][T10349] BTRFS info (device loop2): disabling free space tree
[  577.842896][T10349] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  577.842918][T10349] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  577.877803][T10349] BTRFS info (device loop2): checking UUID tree
[  577.878599][T10349] BTRFS info (device loop2): enabling ssd optimizations
[  577.878619][T10349] BTRFS info (device loop2): disabling tree log
[  577.878633][T10349] BTRFS info (device loop2): turning on flush-on-commit
[  577.878647][T10349] BTRFS info (device loop2): turning on async discard
[  577.878660][T10349] BTRFS info (device loop2): enabling disk space caching
[  577.878691][T10349] BTRFS info (device loop2): force clearing of disk cache
[  577.878706][T10349] BTRFS info (device loop2): trying to use backup root at mount time
[  577.878722][T10349] BTRFS info (device loop2): use zstd compression, level 3
2026/05/26 00:47:19 executed programs: 223
[  578.074711][ T9360] BTRFS info (device loop2): last unmount of filesystem 4d308b33-8a5d-4406-ab80-f7292b06b96c
[  578.544129][T10369] loop2: detected capacity change from 0 to 32768
[  578.545172][T10369] btrfs: Deprecated parameter 'usebackuproot'
[  578.545191][T10369] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  578.546014][T10369] BTRFS info: device /dev/loop2 (7:2) using temp-fsid a5f7d13a-f7a0-40ce-96a3-d90a97d71eeb
[  578.546069][T10369] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.238 (10369)
[  578.549815][T10369] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  578.549841][T10369] BTRFS info (device loop2): using crc32c checksum algorithm
[  578.549867][T10369] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  578.631985][ T1526] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  578.632133][T10369] BTRFS error (device loop2): failed to load root extent
[  578.632167][T10369] BTRFS warning (device loop2): try to load backup roots slot 1
[  578.632622][ T1526] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  578.632750][T10369] BTRFS warning (device loop2): couldn't read tree root
[  578.632766][T10369] BTRFS warning (device loop2): try to load backup roots slot 2
[  578.632987][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  578.633101][T10369] BTRFS warning (device loop2): couldn't read tree root
[  578.633117][T10369] BTRFS warning (device loop2): try to load backup roots slot 3
[  578.654406][T10369] BTRFS info (device loop2): rebuilding free space tree
[  578.700681][T10369] BTRFS info (device loop2): disabling free space tree
[  578.700760][T10369] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  578.700781][T10369] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  578.710562][T10369] BTRFS info (device loop2): checking UUID tree
[  578.711266][T10369] BTRFS info (device loop2): enabling ssd optimizations
[  578.711285][T10369] BTRFS info (device loop2): disabling tree log
[  578.711300][T10369] BTRFS info (device loop2): turning on flush-on-commit
[  578.711313][T10369] BTRFS info (device loop2): turning on async discard
[  578.711327][T10369] BTRFS info (device loop2): enabling disk space caching
[  578.711341][T10369] BTRFS info (device loop2): force clearing of disk cache
[  578.711355][T10369] BTRFS info (device loop2): trying to use backup root at mount time
[  578.711370][T10369] BTRFS info (device loop2): use zstd compression, level 3
[  579.074501][ T9360] BTRFS info (device loop2): last unmount of filesystem a5f7d13a-f7a0-40ce-96a3-d90a97d71eeb
[  579.540271][T10387] loop2: detected capacity change from 0 to 32768
[  579.541389][T10387] btrfs: Deprecated parameter 'usebackuproot'
[  579.541408][T10387] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  579.542339][T10387] BTRFS info: device /dev/loop2 (7:2) using temp-fsid b7c9955e-6f84-4a84-88a1-e6ff719594c7
[  579.543199][T10387] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.239 (10387)
[  579.589168][T10387] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  579.589200][T10387] BTRFS info (device loop2): using crc32c checksum algorithm
[  579.589906][T10387] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  579.679352][ T5862] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  579.679459][T10387] BTRFS error (device loop2): failed to load root extent
[  579.679496][T10387] BTRFS warning (device loop2): try to load backup roots slot 1
[  579.679718][ T5862] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  579.679799][T10387] BTRFS warning (device loop2): couldn't read tree root
[  579.679816][T10387] BTRFS warning (device loop2): try to load backup roots slot 2
[  579.739516][   T68] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  579.740644][T10387] BTRFS warning (device loop2): couldn't read tree root
[  579.740659][T10387] BTRFS warning (device loop2): try to load backup roots slot 3
[  579.784702][T10387] BTRFS info (device loop2): rebuilding free space tree
[  579.865748][T10387] BTRFS info (device loop2): disabling free space tree
[  579.865822][T10387] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  579.865854][T10387] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  579.883070][T10387] BTRFS info (device loop2): checking UUID tree
[  579.883691][T10387] BTRFS info (device loop2): enabling ssd optimizations
[  579.883708][T10387] BTRFS info (device loop2): disabling tree log
[  579.883723][T10387] BTRFS info (device loop2): turning on flush-on-commit
[  579.883738][T10387] BTRFS info (device loop2): turning on async discard
[  579.883751][T10387] BTRFS info (device loop2): enabling disk space caching
[  579.883765][T10387] BTRFS info (device loop2): force clearing of disk cache
[  579.883779][T10387] BTRFS info (device loop2): trying to use backup root at mount time
[  579.883795][T10387] BTRFS info (device loop2): use zstd compression, level 3
[  580.073314][ T9360] BTRFS info (device loop2): last unmount of filesystem b7c9955e-6f84-4a84-88a1-e6ff719594c7
[  580.570225][T10405] loop2: detected capacity change from 0 to 32768
[  580.571209][T10405] btrfs: Deprecated parameter 'usebackuproot'
[  580.571228][T10405] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  580.571957][T10405] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 3375f6f0-7aa6-4707-81d1-ed5c142e016f
[  580.572013][T10405] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.240 (10405)
[  580.584999][T10405] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  580.585029][T10405] BTRFS info (device loop2): using crc32c checksum algorithm
[  580.585057][T10405] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  580.684865][   T68] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  580.685000][T10405] BTRFS error (device loop2): failed to load root extent
[  580.685033][T10405] BTRFS warning (device loop2): try to load backup roots slot 1
[  580.685294][   T13] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  580.686041][T10405] BTRFS warning (device loop2): couldn't read tree root
[  580.686061][T10405] BTRFS warning (device loop2): try to load backup roots slot 2
[  580.686339][   T13] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  580.687148][T10405] BTRFS warning (device loop2): couldn't read tree root
[  580.687167][T10405] BTRFS warning (device loop2): try to load backup roots slot 3
[  580.749166][T10405] BTRFS info (device loop2): rebuilding free space tree
[  580.855468][T10405] BTRFS info (device loop2): disabling free space tree
[  580.855561][T10405] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  580.855584][T10405] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  580.902898][T10405] BTRFS info (device loop2): checking UUID tree
[  580.904033][T10405] BTRFS info (device loop2): enabling ssd optimizations
[  580.904053][T10405] BTRFS info (device loop2): disabling tree log
[  580.904067][T10405] BTRFS info (device loop2): turning on flush-on-commit
[  580.904079][T10405] BTRFS info (device loop2): turning on async discard
[  580.904092][T10405] BTRFS info (device loop2): enabling disk space caching
[  580.904105][T10405] BTRFS info (device loop2): force clearing of disk cache
[  580.904120][T10405] BTRFS info (device loop2): trying to use backup root at mount time
[  580.904136][T10405] BTRFS info (device loop2): use zstd compression, level 3
[  581.043353][ T9360] BTRFS info (device loop2): last unmount of filesystem 3375f6f0-7aa6-4707-81d1-ed5c142e016f
[  581.538816][T10423] loop2: detected capacity change from 0 to 32768
[  581.541326][T10423] btrfs: Deprecated parameter 'usebackuproot'
[  581.541345][T10423] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  581.544126][T10423] BTRFS info: device /dev/loop2 (7:2) using temp-fsid e6f91af2-20e7-45d7-9b94-88eb19c71928
[  581.544183][T10423] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.241 (10423)
[  581.592847][T10423] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  581.592877][T10423] BTRFS info (device loop2): using crc32c checksum algorithm
[  581.592904][T10423] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  581.682739][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  581.682885][T10423] BTRFS error (device loop2): failed to load root extent
[  581.682921][T10423] BTRFS warning (device loop2): try to load backup roots slot 1
[  581.683234][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  581.683348][T10423] BTRFS warning (device loop2): couldn't read tree root
[  581.683366][T10423] BTRFS warning (device loop2): try to load backup roots slot 2
[  581.683683][ T5864] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  581.683789][T10423] BTRFS warning (device loop2): couldn't read tree root
[  581.683822][T10423] BTRFS warning (device loop2): try to load backup roots slot 3
[  581.828431][T10423] BTRFS info (device loop2): rebuilding free space tree
[  581.881536][T10423] BTRFS info (device loop2): disabling free space tree
[  581.881621][T10423] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  581.881644][T10423] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  581.893218][T10423] BTRFS info (device loop2): checking UUID tree
[  581.893813][T10423] BTRFS info (device loop2): enabling ssd optimizations
[  581.893832][T10423] BTRFS info (device loop2): disabling tree log
[  581.893846][T10423] BTRFS info (device loop2): turning on flush-on-commit
[  581.893861][T10423] BTRFS info (device loop2): turning on async discard
[  581.893875][T10423] BTRFS info (device loop2): enabling disk space caching
[  581.893888][T10423] BTRFS info (device loop2): force clearing of disk cache
[  581.893902][T10423] BTRFS info (device loop2): trying to use backup root at mount time
[  581.893918][T10423] BTRFS info (device loop2): use zstd compression, level 3
[  582.053601][ T9360] BTRFS info (device loop2): last unmount of filesystem e6f91af2-20e7-45d7-9b94-88eb19c71928
[  582.460351][T10442] loop2: detected capacity change from 0 to 32768
[  582.461437][T10442] btrfs: Deprecated parameter 'usebackuproot'
[  582.461456][T10442] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  582.462187][T10442] BTRFS info: device /dev/loop2 (7:2) using temp-fsid ed9fd6af-7fbd-43b5-a15b-325cd4abaf96
[  582.462243][T10442] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.242 (10442)
[  582.517967][T10442] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  582.517998][T10442] BTRFS info (device loop2): using crc32c checksum algorithm
[  582.518025][T10442] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  582.607149][ T5862] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  582.607849][T10442] BTRFS error (device loop2): failed to load root extent
[  582.607887][T10442] BTRFS warning (device loop2): try to load backup roots slot 1
[  582.608184][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  582.608321][T10442] BTRFS warning (device loop2): couldn't read tree root
[  582.608338][T10442] BTRFS warning (device loop2): try to load backup roots slot 2
[  582.608669][ T5864] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  582.608857][T10442] BTRFS warning (device loop2): couldn't read tree root
[  582.608874][T10442] BTRFS warning (device loop2): try to load backup roots slot 3
[  582.639019][T10442] BTRFS info (device loop2): rebuilding free space tree
[  582.692025][T10442] BTRFS info (device loop2): disabling free space tree
[  582.692114][T10442] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  582.692136][T10442] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  582.698169][T10442] BTRFS info (device loop2): checking UUID tree
[  582.699230][T10442] BTRFS info (device loop2): enabling ssd optimizations
[  582.699250][T10442] BTRFS info (device loop2): disabling tree log
[  582.699271][T10442] BTRFS info (device loop2): turning on flush-on-commit
[  582.699286][T10442] BTRFS info (device loop2): turning on async discard
[  582.699299][T10442] BTRFS info (device loop2): enabling disk space caching
[  582.699313][T10442] BTRFS info (device loop2): force clearing of disk cache
[  582.699328][T10442] BTRFS info (device loop2): trying to use backup root at mount time
[  582.699343][T10442] BTRFS info (device loop2): use zstd compression, level 3
[  583.023795][ T9360] BTRFS info (device loop2): last unmount of filesystem ed9fd6af-7fbd-43b5-a15b-325cd4abaf96
[  583.474829][T10461] loop2: detected capacity change from 0 to 32768
[  583.482564][T10461] btrfs: Deprecated parameter 'usebackuproot'
[  583.482584][T10461] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  583.489869][T10461] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 618f91eb-7d0a-4a6d-98b8-a78bfc9ba31a
[  583.489929][T10461] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.243 (10461)
[  583.549694][T10461] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  583.549725][T10461] BTRFS info (device loop2): using crc32c checksum algorithm
[  583.549751][T10461] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  583.647283][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  583.647608][T10461] BTRFS error (device loop2): failed to load root extent
[  583.647642][T10461] BTRFS warning (device loop2): try to load backup roots slot 1
[  583.647922][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  583.648044][T10461] BTRFS warning (device loop2): couldn't read tree root
[  583.648060][T10461] BTRFS warning (device loop2): try to load backup roots slot 2
[  583.648339][ T5861] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  583.648454][T10461] BTRFS warning (device loop2): couldn't read tree root
[  583.648469][T10461] BTRFS warning (device loop2): try to load backup roots slot 3
[  583.707839][T10461] BTRFS info (device loop2): rebuilding free space tree
[  583.724689][T10461] BTRFS info (device loop2): disabling free space tree
[  583.724765][T10461] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  583.724788][T10461] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  583.730294][T10461] BTRFS info (device loop2): checking UUID tree
[  583.731260][T10461] BTRFS info (device loop2): enabling ssd optimizations
[  583.731280][T10461] BTRFS info (device loop2): disabling tree log
[  583.731309][T10461] BTRFS info (device loop2): turning on flush-on-commit
[  583.731323][T10461] BTRFS info (device loop2): turning on async discard
[  583.731337][T10461] BTRFS info (device loop2): enabling disk space caching
[  583.731351][T10461] BTRFS info (device loop2): force clearing of disk cache
[  583.731366][T10461] BTRFS info (device loop2): trying to use backup root at mount time
[  583.731382][T10461] BTRFS info (device loop2): use zstd compression, level 3
2026/05/26 00:47:24 executed programs: 229
[  583.954524][ T9360] BTRFS info (device loop2): last unmount of filesystem 618f91eb-7d0a-4a6d-98b8-a78bfc9ba31a
[  584.394412][T10480] loop2: detected capacity change from 0 to 32768
[  584.397558][T10480] btrfs: Deprecated parameter 'usebackuproot'
[  584.397578][T10480] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  584.399884][T10480] BTRFS info: device /dev/loop2 (7:2) using temp-fsid c91609d5-54b3-4fbe-b5f9-e01265d94f69
[  584.399959][T10480] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.244 (10480)
[  584.481892][T10480] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  584.481923][T10480] BTRFS info (device loop2): using crc32c checksum algorithm
[  584.481949][T10480] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  584.572003][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  584.572339][T10480] BTRFS error (device loop2): failed to load root extent
[  584.596635][T10480] BTRFS warning (device loop2): try to load backup roots slot 1
[  584.597372][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  584.597509][T10480] BTRFS warning (device loop2): couldn't read tree root
[  584.597527][T10480] BTRFS warning (device loop2): try to load backup roots slot 2
[  584.597860][ T5864] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  584.598772][T10480] BTRFS warning (device loop2): couldn't read tree root
[  584.598792][T10480] BTRFS warning (device loop2): try to load backup roots slot 3
[  584.703828][T10480] BTRFS info (device loop2): rebuilding free space tree
[  584.759986][T10480] BTRFS info (device loop2): disabling free space tree
[  584.760074][T10480] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  584.760097][T10480] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  584.791106][T10480] BTRFS info (device loop2): checking UUID tree
[  584.791725][T10480] BTRFS info (device loop2): enabling ssd optimizations
[  584.791744][T10480] BTRFS info (device loop2): disabling tree log
[  584.791758][T10480] BTRFS info (device loop2): turning on flush-on-commit
[  584.791772][T10480] BTRFS info (device loop2): turning on async discard
[  584.791786][T10480] BTRFS info (device loop2): enabling disk space caching
[  584.791800][T10480] BTRFS info (device loop2): force clearing of disk cache
[  584.791814][T10480] BTRFS info (device loop2): trying to use backup root at mount time
[  584.791830][T10480] BTRFS info (device loop2): use zstd compression, level 3
[  584.943544][ T9360] BTRFS info (device loop2): last unmount of filesystem c91609d5-54b3-4fbe-b5f9-e01265d94f69
[  585.421955][T10500] loop2: detected capacity change from 0 to 32768
[  585.424045][T10500] btrfs: Deprecated parameter 'usebackuproot'
[  585.424065][T10500] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  585.424798][T10500] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 79b56e47-9b33-4f7f-aece-45e1940098ea
[  585.424852][T10500] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.245 (10500)
[  585.428457][T10500] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  585.428484][T10500] BTRFS info (device loop2): using crc32c checksum algorithm
[  585.428510][T10500] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  585.553946][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  585.554030][T10500] BTRFS error (device loop2): failed to load root extent
[  585.554061][T10500] BTRFS warning (device loop2): try to load backup roots slot 1
[  585.555124][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  585.555218][T10500] BTRFS warning (device loop2): couldn't read tree root
[  585.555234][T10500] BTRFS warning (device loop2): try to load backup roots slot 2
[  585.555498][ T5864] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  585.555579][T10500] BTRFS warning (device loop2): couldn't read tree root
[  585.555595][T10500] BTRFS warning (device loop2): try to load backup roots slot 3
[  585.671082][T10500] BTRFS info (device loop2): rebuilding free space tree
[  585.754289][T10500] BTRFS info (device loop2): disabling free space tree
[  585.754371][T10500] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  585.754392][T10500] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  585.761224][T10500] BTRFS info (device loop2): checking UUID tree
[  585.761733][T10500] BTRFS info (device loop2): enabling ssd optimizations
[  585.761753][T10500] BTRFS info (device loop2): disabling tree log
[  585.761767][T10500] BTRFS info (device loop2): turning on flush-on-commit
[  585.761781][T10500] BTRFS info (device loop2): turning on async discard
[  585.761795][T10500] BTRFS info (device loop2): enabling disk space caching
[  585.761810][T10500] BTRFS info (device loop2): force clearing of disk cache
[  585.761824][T10500] BTRFS info (device loop2): trying to use backup root at mount time
[  585.761840][T10500] BTRFS info (device loop2): use zstd compression, level 3
[  585.993862][ T9360] BTRFS info (device loop2): last unmount of filesystem 79b56e47-9b33-4f7f-aece-45e1940098ea
[  586.456526][T10520] loop2: detected capacity change from 0 to 32768
[  586.457575][T10520] btrfs: Deprecated parameter 'usebackuproot'
[  586.457593][T10520] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  586.458845][T10520] BTRFS info: device /dev/loop2 (7:2) using temp-fsid fa8d0881-d5d9-459e-9043-d78c55e001d5
[  586.458909][T10520] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.246 (10520)
[  586.510421][T10520] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  586.510449][T10520] BTRFS info (device loop2): using crc32c checksum algorithm
[  586.510476][T10520] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  586.645303][T10520] BTRFS error (device loop2): failed to load root extent
[  586.645349][T10520] BTRFS warning (device loop2): try to load backup roots slot 1
[  586.645758][T10520] BTRFS warning (device loop2): couldn't read tree root
[  586.645778][T10520] BTRFS warning (device loop2): try to load backup roots slot 2
[  586.646092][ T5861] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  586.694308][T10520] BTRFS warning (device loop2): couldn't read tree root
[  586.694335][T10520] BTRFS warning (device loop2): try to load backup roots slot 3
[  586.731755][T10520] BTRFS info (device loop2): rebuilding free space tree
[  586.776329][T10520] BTRFS info (device loop2): disabling free space tree
[  586.776387][T10520] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  586.776400][T10520] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  586.819835][T10520] BTRFS info (device loop2): checking UUID tree
[  586.820389][T10520] BTRFS info (device loop2): enabling ssd optimizations
[  586.820408][T10520] BTRFS info (device loop2): disabling tree log
[  586.820435][T10520] BTRFS info (device loop2): turning on flush-on-commit
[  586.820449][T10520] BTRFS info (device loop2): turning on async discard
[  586.820463][T10520] BTRFS info (device loop2): enabling disk space caching
[  586.820477][T10520] BTRFS info (device loop2): force clearing of disk cache
[  586.820491][T10520] BTRFS info (device loop2): trying to use backup root at mount time
[  586.820506][T10520] BTRFS info (device loop2): use zstd compression, level 3
[  587.014075][ T9360] BTRFS info (device loop2): last unmount of filesystem fa8d0881-d5d9-459e-9043-d78c55e001d5
[  587.506187][T10539] loop2: detected capacity change from 0 to 32768
[  587.507322][T10539] btrfs: Deprecated parameter 'usebackuproot'
[  587.507340][T10539] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  587.526704][T10539] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 3d3d8134-413c-4497-a8bd-4f18c468bc47
[  587.529338][T10539] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.247 (10539)
[  587.587974][T10539] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  587.588011][T10539] BTRFS info (device loop2): using crc32c checksum algorithm
[  587.588038][T10539] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  587.656888][ T1529] btrfs_validate_extent_buffer: 2 callbacks suppressed
[  587.656911][ T1529] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  587.657059][T10539] BTRFS error (device loop2): failed to load root extent
[  587.657095][T10539] BTRFS warning (device loop2): try to load backup roots slot 1
[  587.657384][ T1529] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  587.657508][T10539] BTRFS warning (device loop2): couldn't read tree root
[  587.657525][T10539] BTRFS warning (device loop2): try to load backup roots slot 2
[  587.657788][ T1529] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  587.657914][T10539] BTRFS warning (device loop2): couldn't read tree root
[  587.657930][T10539] BTRFS warning (device loop2): try to load backup roots slot 3
[  587.720059][T10539] BTRFS info (device loop2): rebuilding free space tree
[  587.809911][T10539] BTRFS info (device loop2): disabling free space tree
[  587.809994][T10539] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  587.810018][T10539] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  587.819653][T10539] BTRFS info (device loop2): checking UUID tree
[  587.820719][T10539] BTRFS info (device loop2): enabling ssd optimizations
[  587.820740][T10539] BTRFS info (device loop2): disabling tree log
[  587.820753][T10539] BTRFS info (device loop2): turning on flush-on-commit
[  587.820775][T10539] BTRFS info (device loop2): turning on async discard
[  587.820789][T10539] BTRFS info (device loop2): enabling disk space caching
[  587.820803][T10539] BTRFS info (device loop2): force clearing of disk cache
[  587.820818][T10539] BTRFS info (device loop2): trying to use backup root at mount time
[  587.820833][T10539] BTRFS info (device loop2): use zstd compression, level 3
[  588.053566][ T9360] BTRFS info (device loop2): last unmount of filesystem 3d3d8134-413c-4497-a8bd-4f18c468bc47
[  588.488837][T10559] loop2: detected capacity change from 0 to 32768
[  588.495511][T10559] btrfs: Deprecated parameter 'usebackuproot'
[  588.495531][T10559] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  588.496490][T10559] BTRFS info: device /dev/loop2 (7:2) using temp-fsid cb8916b9-cfbe-4bdf-b3fd-631cae0a8d57
[  588.496546][T10559] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.248 (10559)
[  588.509012][T10559] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  588.509041][T10559] BTRFS info (device loop2): using crc32c checksum algorithm
[  588.509068][T10559] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  588.617655][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  588.617987][T10559] BTRFS error (device loop2): failed to load root extent
[  588.618029][T10559] BTRFS warning (device loop2): try to load backup roots slot 1
[  588.618395][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  588.621558][T10559] BTRFS warning (device loop2): couldn't read tree root
[  588.621580][T10559] BTRFS warning (device loop2): try to load backup roots slot 2
[  588.622708][ T5862] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  588.633870][T10559] BTRFS warning (device loop2): couldn't read tree root
[  588.633907][T10559] BTRFS warning (device loop2): try to load backup roots slot 3
[  588.702077][T10559] BTRFS info (device loop2): rebuilding free space tree
[  588.806660][T10559] BTRFS info (device loop2): disabling free space tree
[  588.806736][T10559] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  588.806759][T10559] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  588.839833][T10559] BTRFS info (device loop2): checking UUID tree
[  588.840470][T10559] BTRFS info (device loop2): enabling ssd optimizations
[  588.840489][T10559] BTRFS info (device loop2): disabling tree log
[  588.840503][T10559] BTRFS info (device loop2): turning on flush-on-commit
[  588.840517][T10559] BTRFS info (device loop2): turning on async discard
[  588.840546][T10559] BTRFS info (device loop2): enabling disk space caching
[  588.840560][T10559] BTRFS info (device loop2): force clearing of disk cache
[  588.840575][T10559] BTRFS info (device loop2): trying to use backup root at mount time
[  588.840591][T10559] BTRFS info (device loop2): use zstd compression, level 3
2026/05/26 00:47:29 executed programs: 234
[  589.026308][ T9360] BTRFS info (device loop2): last unmount of filesystem cb8916b9-cfbe-4bdf-b3fd-631cae0a8d57
[  589.504197][T10578] loop2: detected capacity change from 0 to 32768
[  589.505188][T10578] btrfs: Deprecated parameter 'usebackuproot'
[  589.505207][T10578] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  589.507236][T10578] BTRFS info: device /dev/loop2 (7:2) using temp-fsid cf6f6e8f-6255-4faf-bced-c9c1b33e14da
[  589.507292][T10578] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.249 (10578)
[  589.530407][T10578] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  589.530441][T10578] BTRFS info (device loop2): using crc32c checksum algorithm
[  589.530468][T10578] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  589.625123][ T5862] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  589.625236][T10578] BTRFS error (device loop2): failed to load root extent
[  589.625265][T10578] BTRFS warning (device loop2): try to load backup roots slot 1
[  589.625777][ T1529] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  589.627050][T10578] BTRFS warning (device loop2): couldn't read tree root
[  589.627070][T10578] BTRFS warning (device loop2): try to load backup roots slot 2
[  589.627389][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  589.627528][T10578] BTRFS warning (device loop2): couldn't read tree root
[  589.627545][T10578] BTRFS warning (device loop2): try to load backup roots slot 3
[  589.664866][T10578] BTRFS info (device loop2): rebuilding free space tree
[  589.731174][T10578] BTRFS info (device loop2): disabling free space tree
[  589.731253][T10578] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  589.731275][T10578] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  589.755141][T10578] BTRFS info (device loop2): checking UUID tree
[  589.757221][T10578] BTRFS info (device loop2): enabling ssd optimizations
[  589.757243][T10578] BTRFS info (device loop2): disabling tree log
[  589.757257][T10578] BTRFS info (device loop2): turning on flush-on-commit
[  589.757272][T10578] BTRFS info (device loop2): turning on async discard
[  589.757286][T10578] BTRFS info (device loop2): enabling disk space caching
[  589.757300][T10578] BTRFS info (device loop2): force clearing of disk cache
[  589.757314][T10578] BTRFS info (device loop2): trying to use backup root at mount time
[  589.757330][T10578] BTRFS info (device loop2): use zstd compression, level 3
[  589.949068][ T9360] BTRFS info (device loop2): last unmount of filesystem cf6f6e8f-6255-4faf-bced-c9c1b33e14da
[  590.384980][T10597] loop2: detected capacity change from 0 to 32768
[  590.386008][T10597] btrfs: Deprecated parameter 'usebackuproot'
[  590.386027][T10597] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  590.386798][T10597] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 6fbc32b9-c9c6-4741-a143-ec21d1c013c0
[  590.386854][T10597] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.250 (10597)
[  590.390812][T10597] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  590.390838][T10597] BTRFS info (device loop2): using crc32c checksum algorithm
[  590.390864][T10597] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  590.472075][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  590.477474][T10597] BTRFS error (device loop2): failed to load root extent
[  590.477526][T10597] BTRFS warning (device loop2): try to load backup roots slot 1
[  590.479895][ T1526] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  590.481023][T10597] BTRFS warning (device loop2): couldn't read tree root
[  590.481043][T10597] BTRFS warning (device loop2): try to load backup roots slot 2
[  590.481904][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  590.482028][T10597] BTRFS warning (device loop2): couldn't read tree root
[  590.482044][T10597] BTRFS warning (device loop2): try to load backup roots slot 3
[  590.502963][T10597] BTRFS info (device loop2): rebuilding free space tree
[  590.555601][T10597] BTRFS info (device loop2): disabling free space tree
[  590.555677][T10597] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  590.555699][T10597] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  590.580251][T10597] BTRFS info (device loop2): checking UUID tree
[  590.581374][T10597] BTRFS info (device loop2): enabling ssd optimizations
[  590.581394][T10597] BTRFS info (device loop2): disabling tree log
[  590.581409][T10597] BTRFS info (device loop2): turning on flush-on-commit
[  590.581423][T10597] BTRFS info (device loop2): turning on async discard
[  590.581437][T10597] BTRFS info (device loop2): enabling disk space caching
[  590.581452][T10597] BTRFS info (device loop2): force clearing of disk cache
[  590.581466][T10597] BTRFS info (device loop2): trying to use backup root at mount time
[  590.581482][T10597] BTRFS info (device loop2): use zstd compression, level 3
[  590.736798][ T4942] Bluetooth: hci1: command 0x0406 tx timeout
[  590.833479][ T9360] BTRFS info (device loop2): last unmount of filesystem 6fbc32b9-c9c6-4741-a143-ec21d1c013c0
[  591.355275][T10615] loop2: detected capacity change from 0 to 32768
[  591.356405][T10615] btrfs: Deprecated parameter 'usebackuproot'
[  591.356423][T10615] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  591.358683][T10615] BTRFS info: device /dev/loop2 (7:2) using temp-fsid b1348f66-cdc9-4c84-a371-8a7ec9bc24a4
[  591.358746][T10615] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.251 (10615)
[  591.368406][T10615] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  591.368436][T10615] BTRFS info (device loop2): using crc32c checksum algorithm
[  591.368464][T10615] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  591.526375][ T1529] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  591.526481][T10615] BTRFS error (device loop2): failed to load root extent
[  591.526517][T10615] BTRFS warning (device loop2): try to load backup roots slot 1
[  591.526804][ T1529] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  591.526885][T10615] BTRFS warning (device loop2): couldn't read tree root
[  591.526902][T10615] BTRFS warning (device loop2): try to load backup roots slot 2
[  591.527147][ T1529] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  591.527223][T10615] BTRFS warning (device loop2): couldn't read tree root
[  591.527240][T10615] BTRFS warning (device loop2): try to load backup roots slot 3
[  591.554350][T10615] BTRFS info (device loop2): rebuilding free space tree
[  591.699284][T10615] BTRFS info (device loop2): disabling free space tree
[  591.699360][T10615] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  591.699382][T10615] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  591.737979][T10615] BTRFS info (device loop2): checking UUID tree
[  591.743142][T10615] BTRFS info (device loop2): enabling ssd optimizations
[  591.743165][T10615] BTRFS info (device loop2): disabling tree log
[  591.743178][T10615] BTRFS info (device loop2): turning on flush-on-commit
[  591.743190][T10615] BTRFS info (device loop2): turning on async discard
[  591.743203][T10615] BTRFS info (device loop2): enabling disk space caching
[  591.743215][T10615] BTRFS info (device loop2): force clearing of disk cache
[  591.743228][T10615] BTRFS info (device loop2): trying to use backup root at mount time
[  591.743242][T10615] BTRFS info (device loop2): use zstd compression, level 3
[  591.986363][ T9360] BTRFS info (device loop2): last unmount of filesystem b1348f66-cdc9-4c84-a371-8a7ec9bc24a4
[  592.405561][T10635] loop2: detected capacity change from 0 to 32768
[  592.407542][T10635] btrfs: Deprecated parameter 'usebackuproot'
[  592.407561][T10635] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  592.417582][T10635] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 035dfa9b-dadb-490a-995c-ecdee6ad984f
[  592.417640][T10635] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.252 (10635)
[  592.431164][T10635] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  592.431217][T10635] BTRFS info (device loop2): using crc32c checksum algorithm
[  592.431263][T10635] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  592.550185][T10635] BTRFS error (device loop2): failed to load root extent
[  592.550228][T10635] BTRFS warning (device loop2): try to load backup roots slot 1
[  592.550636][T10635] BTRFS warning (device loop2): couldn't read tree root
[  592.550654][T10635] BTRFS warning (device loop2): try to load backup roots slot 2
[  592.550967][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  592.551074][T10635] BTRFS warning (device loop2): couldn't read tree root
[  592.551091][T10635] BTRFS warning (device loop2): try to load backup roots slot 3
[  592.650467][T10635] BTRFS info (device loop2): rebuilding free space tree
[  592.683548][T10635] BTRFS info (device loop2): disabling free space tree
[  592.683620][T10635] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  592.683642][T10635] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  592.688609][T10635] BTRFS info (device loop2): checking UUID tree
[  592.689184][T10635] BTRFS info (device loop2): enabling ssd optimizations
[  592.689201][T10635] BTRFS info (device loop2): disabling tree log
[  592.689214][T10635] BTRFS info (device loop2): turning on flush-on-commit
[  592.689227][T10635] BTRFS info (device loop2): turning on async discard
[  592.689239][T10635] BTRFS info (device loop2): enabling disk space caching
[  592.689251][T10635] BTRFS info (device loop2): force clearing of disk cache
[  592.689263][T10635] BTRFS info (device loop2): trying to use backup root at mount time
[  592.689277][T10635] BTRFS info (device loop2): use zstd compression, level 3
[  592.914585][ T9360] BTRFS info (device loop2): last unmount of filesystem 035dfa9b-dadb-490a-995c-ecdee6ad984f
[  593.448789][T10654] loop2: detected capacity change from 0 to 32768
[  593.451933][T10654] btrfs: Deprecated parameter 'usebackuproot'
[  593.451953][T10654] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  593.465856][T10654] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 76861451-112e-4057-b5e4-ebfada020a66
[  593.465915][T10654] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.253 (10654)
[  593.472189][T10654] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  593.472228][T10654] BTRFS info (device loop2): using crc32c checksum algorithm
[  593.472268][T10654] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  593.579313][ T5864] btrfs_validate_extent_buffer: 2 callbacks suppressed
[  593.579336][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  593.579447][T10654] BTRFS error (device loop2): failed to load root extent
[  593.579479][T10654] BTRFS warning (device loop2): try to load backup roots slot 1
[  593.579762][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  593.579847][T10654] BTRFS warning (device loop2): couldn't read tree root
[  593.579864][T10654] BTRFS warning (device loop2): try to load backup roots slot 2
[  593.580140][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  593.580275][T10654] BTRFS warning (device loop2): couldn't read tree root
[  593.580291][T10654] BTRFS warning (device loop2): try to load backup roots slot 3
[  593.689625][T10654] BTRFS info (device loop2): rebuilding free space tree
[  593.725679][T10654] BTRFS info (device loop2): disabling free space tree
[  593.725730][T10654] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  593.725744][T10654] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  593.743408][T10654] BTRFS info (device loop2): checking UUID tree
[  593.745535][T10654] BTRFS info (device loop2): enabling ssd optimizations
[  593.745557][T10654] BTRFS info (device loop2): disabling tree log
[  593.745571][T10654] BTRFS info (device loop2): turning on flush-on-commit
[  593.745585][T10654] BTRFS info (device loop2): turning on async discard
[  593.745599][T10654] BTRFS info (device loop2): enabling disk space caching
[  593.745613][T10654] BTRFS info (device loop2): force clearing of disk cache
[  593.745627][T10654] BTRFS info (device loop2): trying to use backup root at mount time
[  593.745643][T10654] BTRFS info (device loop2): use zstd compression, level 3
[  593.983606][ T9360] BTRFS info (device loop2): last unmount of filesystem 76861451-112e-4057-b5e4-ebfada020a66
[  594.386297][T10674] loop2: detected capacity change from 0 to 32768
[  594.392741][T10674] btrfs: Deprecated parameter 'usebackuproot'
[  594.392760][T10674] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  594.394798][T10674] BTRFS info: device /dev/loop2 (7:2) using temp-fsid f0d7a5b3-092f-437a-8a2b-d2a565964d09
[  594.394850][T10674] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.254 (10674)
[  594.452034][T10674] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  594.452065][T10674] BTRFS info (device loop2): using crc32c checksum algorithm
[  594.452100][T10674] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  594.563251][ T1526] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  594.563384][T10674] BTRFS error (device loop2): failed to load root extent
[  594.563406][T10674] BTRFS warning (device loop2): try to load backup roots slot 1
[  594.563581][ T1526] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  594.563653][T10674] BTRFS warning (device loop2): couldn't read tree root
[  594.563662][T10674] BTRFS warning (device loop2): try to load backup roots slot 2
[  594.563831][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  594.564048][T10674] BTRFS warning (device loop2): couldn't read tree root
[  594.564058][T10674] BTRFS warning (device loop2): try to load backup roots slot 3
[  594.572112][T10674] BTRFS info (device loop2): rebuilding free space tree
[  594.748753][T10674] BTRFS info (device loop2): disabling free space tree
[  594.748827][T10674] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  594.748849][T10674] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  594.785739][T10674] BTRFS info (device loop2): checking UUID tree
[  594.786417][T10674] BTRFS info (device loop2): enabling ssd optimizations
[  594.786437][T10674] BTRFS info (device loop2): disabling tree log
[  594.786451][T10674] BTRFS info (device loop2): turning on flush-on-commit
[  594.786466][T10674] BTRFS info (device loop2): turning on async discard
[  594.786480][T10674] BTRFS info (device loop2): enabling disk space caching
[  594.786494][T10674] BTRFS info (device loop2): force clearing of disk cache
[  594.786508][T10674] BTRFS info (device loop2): trying to use backup root at mount time
[  594.786523][T10674] BTRFS info (device loop2): use zstd compression, level 3
2026/05/26 00:47:35 executed programs: 240
[  594.954883][ T9360] BTRFS info (device loop2): last unmount of filesystem f0d7a5b3-092f-437a-8a2b-d2a565964d09
[  595.398532][T10693] loop2: detected capacity change from 0 to 32768
[  595.399567][T10693] btrfs: Deprecated parameter 'usebackuproot'
[  595.399586][T10693] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  595.400302][T10693] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 7d2bb51c-e081-4148-abbe-cfc744ce87e6
[  595.400358][T10693] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.255 (10693)
[  595.413780][T10693] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  595.413812][T10693] BTRFS info (device loop2): using crc32c checksum algorithm
[  595.413839][T10693] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  595.529149][   T13] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  595.529312][T10693] BTRFS error (device loop2): failed to load root extent
[  595.529348][T10693] BTRFS warning (device loop2): try to load backup roots slot 1
[  595.529621][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  595.529748][T10693] BTRFS warning (device loop2): couldn't read tree root
[  595.529765][T10693] BTRFS warning (device loop2): try to load backup roots slot 2
[  595.530115][ T5864] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  595.530246][T10693] BTRFS warning (device loop2): couldn't read tree root
[  595.530264][T10693] BTRFS warning (device loop2): try to load backup roots slot 3
[  595.676009][T10693] BTRFS info (device loop2): rebuilding free space tree
[  595.786008][T10693] BTRFS info (device loop2): disabling free space tree
[  595.786084][T10693] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  595.786107][T10693] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  595.791104][T10693] BTRFS info (device loop2): checking UUID tree
[  595.810442][T10693] BTRFS info (device loop2): enabling ssd optimizations
[  595.810466][T10693] BTRFS info (device loop2): disabling tree log
[  595.810481][T10693] BTRFS info (device loop2): turning on flush-on-commit
[  595.810494][T10693] BTRFS info (device loop2): turning on async discard
[  595.810507][T10693] BTRFS info (device loop2): enabling disk space caching
[  595.810521][T10693] BTRFS info (device loop2): force clearing of disk cache
[  595.810535][T10693] BTRFS info (device loop2): trying to use backup root at mount time
[  595.810551][T10693] BTRFS info (device loop2): use zstd compression, level 3
[  596.013655][ T9360] BTRFS info (device loop2): last unmount of filesystem 7d2bb51c-e081-4148-abbe-cfc744ce87e6
[  596.441241][T10713] loop2: detected capacity change from 0 to 32768
[  596.442240][T10713] btrfs: Deprecated parameter 'usebackuproot'
[  596.442259][T10713] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  596.445091][T10713] BTRFS info: device /dev/loop2 (7:2) using temp-fsid ae7cd062-d952-40d9-a6dc-a723ac25a526
[  596.445149][T10713] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.256 (10713)
[  596.451729][T10713] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  596.451757][T10713] BTRFS info (device loop2): using crc32c checksum algorithm
[  596.451785][T10713] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  596.632528][ T5862] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  596.632700][T10713] BTRFS error (device loop2): failed to load root extent
[  596.632738][T10713] BTRFS warning (device loop2): try to load backup roots slot 1
[  596.633063][ T5862] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  596.633193][T10713] BTRFS warning (device loop2): couldn't read tree root
[  596.633210][T10713] BTRFS warning (device loop2): try to load backup roots slot 2
[  596.633516][   T13] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  596.633646][T10713] BTRFS warning (device loop2): couldn't read tree root
[  596.633663][T10713] BTRFS warning (device loop2): try to load backup roots slot 3
[  596.711980][T10713] BTRFS info (device loop2): rebuilding free space tree
[  596.773917][T10713] BTRFS info (device loop2): disabling free space tree
[  596.773990][T10713] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  596.774014][T10713] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  596.785873][T10713] BTRFS info (device loop2): checking UUID tree
[  596.786743][T10713] BTRFS info (device loop2): enabling ssd optimizations
[  596.786762][T10713] BTRFS info (device loop2): disabling tree log
[  596.786777][T10713] BTRFS info (device loop2): turning on flush-on-commit
[  596.786791][T10713] BTRFS info (device loop2): turning on async discard
[  596.786804][T10713] BTRFS info (device loop2): enabling disk space caching
[  596.786818][T10713] BTRFS info (device loop2): force clearing of disk cache
[  596.786833][T10713] BTRFS info (device loop2): trying to use backup root at mount time
[  596.786848][T10713] BTRFS info (device loop2): use zstd compression, level 3
[  596.943842][ T9360] BTRFS info (device loop2): last unmount of filesystem ae7cd062-d952-40d9-a6dc-a723ac25a526
[  597.405468][T10732] loop2: detected capacity change from 0 to 32768
[  597.410046][T10732] btrfs: Deprecated parameter 'usebackuproot'
[  597.410067][T10732] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  597.410981][T10732] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 89cf2ba0-17ec-4c15-b37e-9d2bd9f7ff28
[  597.411050][T10732] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.257 (10732)
[  597.459525][T10732] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  597.459558][T10732] BTRFS info (device loop2): using crc32c checksum algorithm
[  597.459585][T10732] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  597.529912][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  597.530055][T10732] BTRFS error (device loop2): failed to load root extent
[  597.530092][T10732] BTRFS warning (device loop2): try to load backup roots slot 1
[  597.530418][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  597.530532][T10732] BTRFS warning (device loop2): couldn't read tree root
[  597.530548][T10732] BTRFS warning (device loop2): try to load backup roots slot 2
[  597.530842][ T5861] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  597.530946][T10732] BTRFS warning (device loop2): couldn't read tree root
[  597.530962][T10732] BTRFS warning (device loop2): try to load backup roots slot 3
[  597.577576][T10732] BTRFS info (device loop2): rebuilding free space tree
[  597.596690][T10732] BTRFS info (device loop2): disabling free space tree
[  597.596765][T10732] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  597.596788][T10732] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  597.603476][T10732] BTRFS info (device loop2): checking UUID tree
[  597.604551][T10732] BTRFS info (device loop2): enabling ssd optimizations
[  597.604571][T10732] BTRFS info (device loop2): disabling tree log
[  597.604586][T10732] BTRFS info (device loop2): turning on flush-on-commit
[  597.604601][T10732] BTRFS info (device loop2): turning on async discard
[  597.604615][T10732] BTRFS info (device loop2): enabling disk space caching
[  597.604629][T10732] BTRFS info (device loop2): force clearing of disk cache
[  597.604643][T10732] BTRFS info (device loop2): trying to use backup root at mount time
[  597.604658][T10732] BTRFS info (device loop2): use zstd compression, level 3
[  597.903542][ T9360] BTRFS info (device loop2): last unmount of filesystem 89cf2ba0-17ec-4c15-b37e-9d2bd9f7ff28
[  598.400236][T10751] loop2: detected capacity change from 0 to 32768
[  598.401341][T10751] btrfs: Deprecated parameter 'usebackuproot'
[  598.401358][T10751] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  598.437940][T10751] BTRFS info: device /dev/loop2 (7:2) using temp-fsid a6422384-ff77-4557-8e96-b02a84cb95d4
[  598.438001][T10751] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.258 (10751)
[  598.462518][T10751] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  598.462547][T10751] BTRFS info (device loop2): using crc32c checksum algorithm
[  598.462574][T10751] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  598.588670][ T5862] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  598.591323][T10751] BTRFS error (device loop2): failed to load root extent
[  598.591364][T10751] BTRFS warning (device loop2): try to load backup roots slot 1
[  598.592265][ T1526] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  598.593073][T10751] BTRFS warning (device loop2): couldn't read tree root
[  598.593090][T10751] BTRFS warning (device loop2): try to load backup roots slot 2
[  598.593369][ T5864] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  598.594405][T10751] BTRFS warning (device loop2): couldn't read tree root
[  598.594424][T10751] BTRFS warning (device loop2): try to load backup roots slot 3
[  598.691736][T10751] BTRFS info (device loop2): rebuilding free space tree
[  598.754237][T10751] BTRFS info (device loop2): disabling free space tree
[  598.754310][T10751] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  598.754332][T10751] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  598.811994][T10751] BTRFS info (device loop2): checking UUID tree
[  598.819953][T10751] BTRFS info (device loop2): enabling ssd optimizations
[  598.819973][T10751] BTRFS info (device loop2): disabling tree log
[  598.819986][T10751] BTRFS info (device loop2): turning on flush-on-commit
[  598.819999][T10751] BTRFS info (device loop2): turning on async discard
[  598.820013][T10751] BTRFS info (device loop2): enabling disk space caching
[  598.820027][T10751] BTRFS info (device loop2): force clearing of disk cache
[  598.820040][T10751] BTRFS info (device loop2): trying to use backup root at mount time
[  598.820055][T10751] BTRFS info (device loop2): use zstd compression, level 3
[  599.025048][ T9360] BTRFS info (device loop2): last unmount of filesystem a6422384-ff77-4557-8e96-b02a84cb95d4
[  599.454417][T10773] loop2: detected capacity change from 0 to 32768
[  599.463594][T10773] btrfs: Deprecated parameter 'usebackuproot'
[  599.463614][T10773] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  599.482951][T10773] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 63b2f0b1-91c0-4904-bd41-e93fe3916595
[  599.483010][T10773] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.259 (10773)
[  599.487803][T10773] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  599.487831][T10773] BTRFS info (device loop2): using crc32c checksum algorithm
[  599.487859][T10773] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  599.599725][   T68] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  599.607625][T10773] BTRFS error (device loop2): failed to load root extent
[  599.607664][T10773] BTRFS warning (device loop2): try to load backup roots slot 1
[  599.615033][ T1526] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  599.634039][T10773] BTRFS warning (device loop2): couldn't read tree root
[  599.634062][T10773] BTRFS warning (device loop2): try to load backup roots slot 2
[  599.638003][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  599.638188][T10773] BTRFS warning (device loop2): couldn't read tree root
[  599.638205][T10773] BTRFS warning (device loop2): try to load backup roots slot 3
[  599.664533][T10773] BTRFS info (device loop2): rebuilding free space tree
[  599.757797][T10773] BTRFS info (device loop2): disabling free space tree
[  599.757851][T10773] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  599.757864][T10773] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  599.787768][T10773] BTRFS info (device loop2): checking UUID tree
[  599.788358][T10773] BTRFS info (device loop2): enabling ssd optimizations
[  599.788376][T10773] BTRFS info (device loop2): disabling tree log
[  599.788391][T10773] BTRFS info (device loop2): turning on flush-on-commit
[  599.788405][T10773] BTRFS info (device loop2): turning on async discard
[  599.788419][T10773] BTRFS info (device loop2): enabling disk space caching
[  599.788433][T10773] BTRFS info (device loop2): force clearing of disk cache
[  599.788448][T10773] BTRFS info (device loop2): trying to use backup root at mount time
[  599.788463][T10773] BTRFS info (device loop2): use zstd compression, level 3
2026/05/26 00:47:40 executed programs: 245
[  599.975567][ T9360] BTRFS info (device loop2): last unmount of filesystem 63b2f0b1-91c0-4904-bd41-e93fe3916595
[  600.446387][T10792] loop2: detected capacity change from 0 to 32768
[  600.447354][T10792] btrfs: Deprecated parameter 'usebackuproot'
[  600.447372][T10792] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  600.448089][T10792] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 1d6514b7-5c1b-4516-acdf-4b578b6209ca
[  600.448146][T10792] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.260 (10792)
[  600.460755][T10792] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  600.460785][T10792] BTRFS info (device loop2): using crc32c checksum algorithm
[  600.460812][T10792] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  600.576104][   T68] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  600.576249][T10792] BTRFS error (device loop2): failed to load root extent
[  600.576286][T10792] BTRFS warning (device loop2): try to load backup roots slot 1
[  600.576838][   T68] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  600.576953][T10792] BTRFS warning (device loop2): couldn't read tree root
[  600.576970][T10792] BTRFS warning (device loop2): try to load backup roots slot 2
[  600.577228][   T68] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  600.577329][T10792] BTRFS warning (device loop2): couldn't read tree root
[  600.577345][T10792] BTRFS warning (device loop2): try to load backup roots slot 3
[  600.614803][T10792] BTRFS info (device loop2): rebuilding free space tree
[  600.631868][T10792] BTRFS info (device loop2): disabling free space tree
[  600.631943][T10792] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  600.631965][T10792] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  600.641458][T10792] BTRFS info (device loop2): checking UUID tree
[  600.643264][T10792] BTRFS info (device loop2): enabling ssd optimizations
[  600.643285][T10792] BTRFS info (device loop2): disabling tree log
[  600.643300][T10792] BTRFS info (device loop2): turning on flush-on-commit
[  600.643314][T10792] BTRFS info (device loop2): turning on async discard
[  600.643328][T10792] BTRFS info (device loop2): enabling disk space caching
[  600.643341][T10792] BTRFS info (device loop2): force clearing of disk cache
[  600.643356][T10792] BTRFS info (device loop2): trying to use backup root at mount time
[  600.643372][T10792] BTRFS info (device loop2): use zstd compression, level 3
[  600.893719][ T9360] BTRFS info (device loop2): last unmount of filesystem 1d6514b7-5c1b-4516-acdf-4b578b6209ca
[  601.283619][T10811] loop2: detected capacity change from 0 to 32768
[  601.284695][T10811] btrfs: Deprecated parameter 'usebackuproot'
[  601.284713][T10811] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  601.286850][T10811] BTRFS info: device /dev/loop2 (7:2) using temp-fsid cf71e8eb-71e1-414e-963a-3ac756e98e3b
[  601.286909][T10811] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.261 (10811)
[  601.304206][T10811] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  601.304238][T10811] BTRFS info (device loop2): using crc32c checksum algorithm
[  601.304264][T10811] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  601.470992][ T5862] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  601.471178][T10811] BTRFS error (device loop2): failed to load root extent
[  601.471215][T10811] BTRFS warning (device loop2): try to load backup roots slot 1
[  601.492575][   T13] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  601.519860][T10811] BTRFS warning (device loop2): couldn't read tree root
[  601.519885][T10811] BTRFS warning (device loop2): try to load backup roots slot 2
[  601.520241][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  601.521678][T10811] BTRFS warning (device loop2): couldn't read tree root
[  601.521699][T10811] BTRFS warning (device loop2): try to load backup roots slot 3
[  601.569209][T10811] BTRFS info (device loop2): rebuilding free space tree
[  601.593566][T10811] BTRFS info (device loop2): disabling free space tree
[  601.593616][T10811] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  601.593629][T10811] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  601.598005][T10811] BTRFS info (device loop2): checking UUID tree
[  601.599238][T10811] BTRFS info (device loop2): enabling ssd optimizations
[  601.599259][T10811] BTRFS info (device loop2): disabling tree log
[  601.599272][T10811] BTRFS info (device loop2): turning on flush-on-commit
[  601.599285][T10811] BTRFS info (device loop2): turning on async discard
[  601.599298][T10811] BTRFS info (device loop2): enabling disk space caching
[  601.599312][T10811] BTRFS info (device loop2): force clearing of disk cache
[  601.599326][T10811] BTRFS info (device loop2): trying to use backup root at mount time
[  601.599342][T10811] BTRFS info (device loop2): use zstd compression, level 3
[  601.844767][ T9360] BTRFS info (device loop2): last unmount of filesystem cf71e8eb-71e1-414e-963a-3ac756e98e3b
[  602.281785][T10831] loop2: detected capacity change from 0 to 32768
[  602.290537][T10831] btrfs: Deprecated parameter 'usebackuproot'
[  602.290559][T10831] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  602.291319][T10831] BTRFS info: device /dev/loop2 (7:2) using temp-fsid b9fbf2d7-d26e-456f-965d-42f08ffeedb1
[  602.291375][T10831] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.262 (10831)
[  602.298042][T10831] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  602.298070][T10831] BTRFS info (device loop2): using crc32c checksum algorithm
[  602.298108][T10831] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  602.415988][ T1526] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  602.416987][T10831] BTRFS error (device loop2): failed to load root extent
[  602.417035][T10831] BTRFS warning (device loop2): try to load backup roots slot 1
[  602.417806][   T13] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  602.419199][T10831] BTRFS warning (device loop2): couldn't read tree root
[  602.419218][T10831] BTRFS warning (device loop2): try to load backup roots slot 2
[  602.419588][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  602.419706][T10831] BTRFS warning (device loop2): couldn't read tree root
[  602.419722][T10831] BTRFS warning (device loop2): try to load backup roots slot 3
[  602.537875][T10831] BTRFS info (device loop2): rebuilding free space tree
[  602.568411][T10831] BTRFS info (device loop2): disabling free space tree
[  602.568464][T10831] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  602.568478][T10831] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  602.613737][T10831] BTRFS info (device loop2): checking UUID tree
[  602.615661][T10831] BTRFS info (device loop2): enabling ssd optimizations
[  602.615682][T10831] BTRFS info (device loop2): disabling tree log
[  602.615695][T10831] BTRFS info (device loop2): turning on flush-on-commit
[  602.615709][T10831] BTRFS info (device loop2): turning on async discard
[  602.615723][T10831] BTRFS info (device loop2): enabling disk space caching
[  602.615736][T10831] BTRFS info (device loop2): force clearing of disk cache
[  602.615750][T10831] BTRFS info (device loop2): trying to use backup root at mount time
[  602.615765][T10831] BTRFS info (device loop2): use zstd compression, level 3
[  602.871743][ T9360] BTRFS info (device loop2): last unmount of filesystem b9fbf2d7-d26e-456f-965d-42f08ffeedb1
[  603.349117][T10851] loop2: detected capacity change from 0 to 32768
[  603.364299][T10851] btrfs: Deprecated parameter 'usebackuproot'
[  603.364321][T10851] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  603.366510][T10851] BTRFS info: device /dev/loop2 (7:2) using temp-fsid cce57758-e4a4-48c2-b8b2-823d4bf0548a
[  603.366564][T10851] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.263 (10851)
[  603.447964][T10851] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  603.447991][T10851] BTRFS info (device loop2): using crc32c checksum algorithm
[  603.448017][T10851] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  603.537710][T10851] BTRFS error (device loop2): failed to load root extent
[  603.537752][T10851] BTRFS warning (device loop2): try to load backup roots slot 1
[  603.573449][T10851] BTRFS warning (device loop2): couldn't read tree root
[  603.573473][T10851] BTRFS warning (device loop2): try to load backup roots slot 2
[  603.573892][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  603.574021][T10851] BTRFS warning (device loop2): couldn't read tree root
[  603.574039][T10851] BTRFS warning (device loop2): try to load backup roots slot 3
[  603.640304][T10851] BTRFS info (device loop2): rebuilding free space tree
[  603.716832][T10851] BTRFS info (device loop2): disabling free space tree
[  603.716903][T10851] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  603.716927][T10851] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  603.727062][T10851] BTRFS info (device loop2): checking UUID tree
[  603.727879][T10851] BTRFS info (device loop2): enabling ssd optimizations
[  603.727899][T10851] BTRFS info (device loop2): disabling tree log
[  603.727912][T10851] BTRFS info (device loop2): turning on flush-on-commit
[  603.727927][T10851] BTRFS info (device loop2): turning on async discard
[  603.727941][T10851] BTRFS info (device loop2): enabling disk space caching
[  603.727955][T10851] BTRFS info (device loop2): force clearing of disk cache
[  603.727970][T10851] BTRFS info (device loop2): trying to use backup root at mount time
[  603.727985][T10851] BTRFS info (device loop2): use zstd compression, level 3
[  603.943502][ T9360] BTRFS info (device loop2): last unmount of filesystem cce57758-e4a4-48c2-b8b2-823d4bf0548a
[  604.385760][T10871] loop2: detected capacity change from 0 to 32768
[  604.386863][T10871] btrfs: Deprecated parameter 'usebackuproot'
[  604.386882][T10871] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  604.387638][T10871] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 67be7422-03f1-459c-8982-a11abffc6b8e
[  604.387694][T10871] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.264 (10871)
[  604.392329][T10871] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  604.392436][T10871] BTRFS info (device loop2): using crc32c checksum algorithm
[  604.392463][T10871] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  604.500975][ T5861] btrfs_validate_extent_buffer: 2 callbacks suppressed
[  604.500998][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  604.501098][T10871] BTRFS error (device loop2): failed to load root extent
[  604.501133][T10871] BTRFS warning (device loop2): try to load backup roots slot 1
[  604.501356][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  604.501439][T10871] BTRFS warning (device loop2): couldn't read tree root
[  604.501456][T10871] BTRFS warning (device loop2): try to load backup roots slot 2
[  604.584748][ T1526] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  604.590597][T10871] BTRFS warning (device loop2): couldn't read tree root
[  604.590622][T10871] BTRFS warning (device loop2): try to load backup roots slot 3
[  604.648752][T10871] BTRFS info (device loop2): rebuilding free space tree
[  604.734566][T10871] BTRFS info (device loop2): disabling free space tree
[  604.734650][T10871] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  604.734673][T10871] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  604.748898][T10871] BTRFS info (device loop2): checking UUID tree
[  604.749931][T10871] BTRFS info (device loop2): enabling ssd optimizations
[  604.749951][T10871] BTRFS info (device loop2): disabling tree log
[  604.749965][T10871] BTRFS info (device loop2): turning on flush-on-commit
[  604.749980][T10871] BTRFS info (device loop2): turning on async discard
[  604.749994][T10871] BTRFS info (device loop2): enabling disk space caching
[  604.750009][T10871] BTRFS info (device loop2): force clearing of disk cache
[  604.750023][T10871] BTRFS info (device loop2): trying to use backup root at mount time
[  604.750038][T10871] BTRFS info (device loop2): use zstd compression, level 3
2026/05/26 00:47:45 executed programs: 250
[  605.020564][ T9360] BTRFS info (device loop2): last unmount of filesystem 67be7422-03f1-459c-8982-a11abffc6b8e
[  605.450194][T10890] loop2: detected capacity change from 0 to 32768
[  605.451262][T10890] btrfs: Deprecated parameter 'usebackuproot'
[  605.451280][T10890] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  605.451986][T10890] BTRFS info: device /dev/loop2 (7:2) using temp-fsid ef87e389-d024-4095-8f84-cf31b0f025ea
[  605.452042][T10890] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.265 (10890)
[  605.463185][T10890] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  605.463223][T10890] BTRFS info (device loop2): using crc32c checksum algorithm
[  605.463249][T10890] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  605.625333][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  605.625500][T10890] BTRFS error (device loop2): failed to load root extent
[  605.625536][T10890] BTRFS warning (device loop2): try to load backup roots slot 1
[  605.625842][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  605.625963][T10890] BTRFS warning (device loop2): couldn't read tree root
[  605.625980][T10890] BTRFS warning (device loop2): try to load backup roots slot 2
[  605.626211][ T5861] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  605.626330][T10890] BTRFS warning (device loop2): couldn't read tree root
[  605.626345][T10890] BTRFS warning (device loop2): try to load backup roots slot 3
[  605.690691][T10890] BTRFS info (device loop2): rebuilding free space tree
[  605.754509][T10890] BTRFS info (device loop2): disabling free space tree
[  605.754586][T10890] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  605.754608][T10890] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  605.761704][T10890] BTRFS info (device loop2): checking UUID tree
[  605.764675][T10890] BTRFS info (device loop2): enabling ssd optimizations
[  605.764696][T10890] BTRFS info (device loop2): disabling tree log
[  605.764710][T10890] BTRFS info (device loop2): turning on flush-on-commit
[  605.764725][T10890] BTRFS info (device loop2): turning on async discard
[  605.764739][T10890] BTRFS info (device loop2): enabling disk space caching
[  605.764753][T10890] BTRFS info (device loop2): force clearing of disk cache
[  605.764767][T10890] BTRFS info (device loop2): trying to use backup root at mount time
[  605.764783][T10890] BTRFS info (device loop2): use zstd compression, level 3
[  605.983721][ T9360] BTRFS info (device loop2): last unmount of filesystem ef87e389-d024-4095-8f84-cf31b0f025ea
[  606.323546][T10910] loop2: detected capacity change from 0 to 32768
[  606.324594][T10910] btrfs: Deprecated parameter 'usebackuproot'
[  606.324613][T10910] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  606.330651][T10910] BTRFS info: device /dev/loop2 (7:2) using temp-fsid edaa2776-4491-4c11-8213-480a40b63df5
[  606.330714][T10910] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.266 (10910)
[  606.344526][T10910] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  606.344556][T10910] BTRFS info (device loop2): using crc32c checksum algorithm
[  606.344583][T10910] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  606.462709][ T5862] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  606.462850][T10910] BTRFS error (device loop2): failed to load root extent
[  606.462885][T10910] BTRFS warning (device loop2): try to load backup roots slot 1
[  606.463205][ T5862] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  606.463316][T10910] BTRFS warning (device loop2): couldn't read tree root
[  606.463331][T10910] BTRFS warning (device loop2): try to load backup roots slot 2
[  606.463622][ T5862] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  606.463720][T10910] BTRFS warning (device loop2): couldn't read tree root
[  606.463735][T10910] BTRFS warning (device loop2): try to load backup roots slot 3
[  606.555615][T10910] BTRFS info (device loop2): rebuilding free space tree
[  606.622129][T10910] BTRFS info (device loop2): disabling free space tree
[  606.622240][T10910] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  606.622264][T10910] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  606.661368][T10910] BTRFS info (device loop2): checking UUID tree
[  606.662796][T10910] BTRFS info (device loop2): enabling ssd optimizations
[  606.662816][T10910] BTRFS info (device loop2): disabling tree log
[  606.662831][T10910] BTRFS info (device loop2): turning on flush-on-commit
[  606.662845][T10910] BTRFS info (device loop2): turning on async discard
[  606.662859][T10910] BTRFS info (device loop2): enabling disk space caching
[  606.662872][T10910] BTRFS info (device loop2): force clearing of disk cache
[  606.662886][T10910] BTRFS info (device loop2): trying to use backup root at mount time
[  606.662910][T10910] BTRFS info (device loop2): use zstd compression, level 3
[  606.893523][ T9360] BTRFS info (device loop2): last unmount of filesystem edaa2776-4491-4c11-8213-480a40b63df5
[  607.359436][T10929] loop2: detected capacity change from 0 to 32768
[  607.360522][T10929] btrfs: Deprecated parameter 'usebackuproot'
[  607.360540][T10929] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  607.377906][T10929] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 1027604b-2514-4c8a-9d9a-49a204e0a994
[  607.377960][T10929] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.267 (10929)
[  607.393333][T10929] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  607.393365][T10929] BTRFS info (device loop2): using crc32c checksum algorithm
[  607.393394][T10929] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  607.545841][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  607.546160][T10929] BTRFS error (device loop2): failed to load root extent
[  607.546197][T10929] BTRFS warning (device loop2): try to load backup roots slot 1
[  607.546513][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  607.547311][T10929] BTRFS warning (device loop2): couldn't read tree root
[  607.547330][T10929] BTRFS warning (device loop2): try to load backup roots slot 2
[  607.547619][ T5864] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  607.547737][T10929] BTRFS warning (device loop2): couldn't read tree root
[  607.547752][T10929] BTRFS warning (device loop2): try to load backup roots slot 3
[  607.564081][T10929] BTRFS info (device loop2): rebuilding free space tree
[  607.583932][T10929] BTRFS info (device loop2): disabling free space tree
[  607.584014][T10929] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  607.584036][T10929] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  607.589280][T10929] BTRFS info (device loop2): checking UUID tree
[  607.590295][T10929] BTRFS info (device loop2): enabling ssd optimizations
[  607.590314][T10929] BTRFS info (device loop2): disabling tree log
[  607.590328][T10929] BTRFS info (device loop2): turning on flush-on-commit
[  607.590343][T10929] BTRFS info (device loop2): turning on async discard
[  607.590357][T10929] BTRFS info (device loop2): enabling disk space caching
[  607.590371][T10929] BTRFS info (device loop2): force clearing of disk cache
[  607.590386][T10929] BTRFS info (device loop2): trying to use backup root at mount time
[  607.590402][T10929] BTRFS info (device loop2): use zstd compression, level 3
[  607.903605][ T9360] BTRFS info (device loop2): last unmount of filesystem 1027604b-2514-4c8a-9d9a-49a204e0a994
[  608.363711][T10949] loop2: detected capacity change from 0 to 32768
[  608.365107][T10949] btrfs: Deprecated parameter 'usebackuproot'
[  608.365128][T10949] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  608.370988][T10949] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 0be5e1ab-8302-4f81-b589-be620a66d9d3
[  608.371048][T10949] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.268 (10949)
[  608.385141][T10949] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  608.385173][T10949] BTRFS info (device loop2): using crc32c checksum algorithm
[  608.385200][T10949] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  608.579315][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  608.579478][T10949] BTRFS error (device loop2): failed to load root extent
[  608.604079][T10949] BTRFS warning (device loop2): try to load backup roots slot 1
[  608.606375][ T5862] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  608.606496][T10949] BTRFS warning (device loop2): couldn't read tree root
[  608.606513][T10949] BTRFS warning (device loop2): try to load backup roots slot 2
[  608.606825][ T5862] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  608.606926][T10949] BTRFS warning (device loop2): couldn't read tree root
[  608.606942][T10949] BTRFS warning (device loop2): try to load backup roots slot 3
[  608.627381][T10949] BTRFS info (device loop2): rebuilding free space tree
[  608.724839][T10949] BTRFS info (device loop2): disabling free space tree
[  608.724921][T10949] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  608.724942][T10949] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  608.730174][T10949] BTRFS info (device loop2): checking UUID tree
[  608.731034][T10949] BTRFS info (device loop2): enabling ssd optimizations
[  608.731056][T10949] BTRFS info (device loop2): disabling tree log
[  608.731071][T10949] BTRFS info (device loop2): turning on flush-on-commit
[  608.731085][T10949] BTRFS info (device loop2): turning on async discard
[  608.731099][T10949] BTRFS info (device loop2): enabling disk space caching
[  608.731113][T10949] BTRFS info (device loop2): force clearing of disk cache
[  608.731127][T10949] BTRFS info (device loop2): trying to use backup root at mount time
[  608.731144][T10949] BTRFS info (device loop2): use zstd compression, level 3
[  608.883483][ T9360] BTRFS info (device loop2): last unmount of filesystem 0be5e1ab-8302-4f81-b589-be620a66d9d3
[  609.364400][T10968] loop2: detected capacity change from 0 to 32768
[  609.365523][T10968] btrfs: Deprecated parameter 'usebackuproot'
[  609.365541][T10968] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  609.369385][T10968] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 5c2ec430-d5c4-430b-b933-f30c43ec64fc
[  609.369443][T10968] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.269 (10968)
[  609.407407][T10968] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  609.407436][T10968] BTRFS info (device loop2): using crc32c checksum algorithm
[  609.407463][T10968] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  609.491092][T10968] BTRFS error (device loop2): failed to load root extent
[  609.491138][T10968] BTRFS warning (device loop2): try to load backup roots slot 1
[  609.491559][T10968] BTRFS warning (device loop2): couldn't read tree root
[  609.491587][T10968] BTRFS warning (device loop2): try to load backup roots slot 2
[  609.491914][ T5864] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  609.492020][T10968] BTRFS warning (device loop2): couldn't read tree root
[  609.492035][T10968] BTRFS warning (device loop2): try to load backup roots slot 3
[  609.594777][T10968] BTRFS info (device loop2): rebuilding free space tree
[  609.651368][T10968] BTRFS info (device loop2): disabling free space tree
[  609.651445][T10968] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  609.651468][T10968] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  609.685183][T10968] BTRFS info (device loop2): checking UUID tree
[  609.710036][T10968] BTRFS info (device loop2): enabling ssd optimizations
[  609.710057][T10968] BTRFS info (device loop2): disabling tree log
[  609.710071][T10968] BTRFS info (device loop2): turning on flush-on-commit
[  609.710084][T10968] BTRFS info (device loop2): turning on async discard
[  609.710098][T10968] BTRFS info (device loop2): enabling disk space caching
[  609.710112][T10968] BTRFS info (device loop2): force clearing of disk cache
[  609.710126][T10968] BTRFS info (device loop2): trying to use backup root at mount time
[  609.710141][T10968] BTRFS info (device loop2): use zstd compression, level 3
[  609.883462][ T9360] BTRFS info (device loop2): last unmount of filesystem 5c2ec430-d5c4-430b-b933-f30c43ec64fc
[  610.301244][T10988] loop2: detected capacity change from 0 to 32768
[  610.304710][T10988] btrfs: Deprecated parameter 'usebackuproot'
[  610.306208][T10988] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  610.306901][T10988] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 57e09d65-a418-4b0b-9ce8-d9c6e4358a65
[  610.306956][T10988] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.270 (10988)
[  610.314433][T10988] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  610.314461][T10988] BTRFS info (device loop2): using crc32c checksum algorithm
[  610.314488][T10988] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  610.486554][ T1525] btrfs_validate_extent_buffer: 2 callbacks suppressed
[  610.486576][ T1525] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  610.486735][T10988] BTRFS error (device loop2): failed to load root extent
[  610.486769][T10988] BTRFS warning (device loop2): try to load backup roots slot 1
[  610.487039][ T1525] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  610.487162][T10988] BTRFS warning (device loop2): couldn't read tree root
[  610.487178][T10988] BTRFS warning (device loop2): try to load backup roots slot 2
[  610.487434][ T1525] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  610.487560][T10988] BTRFS warning (device loop2): couldn't read tree root
[  610.487576][T10988] BTRFS warning (device loop2): try to load backup roots slot 3
[  610.571621][T10988] BTRFS info (device loop2): rebuilding free space tree
[  610.645067][T10988] BTRFS info (device loop2): disabling free space tree
[  610.645134][T10988] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  610.645153][T10988] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  610.670139][T10988] BTRFS info (device loop2): checking UUID tree
[  610.670761][T10988] BTRFS info (device loop2): enabling ssd optimizations
[  610.670780][T10988] BTRFS info (device loop2): disabling tree log
[  610.670795][T10988] BTRFS info (device loop2): turning on flush-on-commit
[  610.670809][T10988] BTRFS info (device loop2): turning on async discard
[  610.670823][T10988] BTRFS info (device loop2): enabling disk space caching
[  610.670837][T10988] BTRFS info (device loop2): force clearing of disk cache
[  610.670851][T10988] BTRFS info (device loop2): trying to use backup root at mount time
[  610.670867][T10988] BTRFS info (device loop2): use zstd compression, level 3
2026/05/26 00:47:51 executed programs: 256
[  610.903571][ T9360] BTRFS info (device loop2): last unmount of filesystem 57e09d65-a418-4b0b-9ce8-d9c6e4358a65
[  611.295243][T11008] loop2: detected capacity change from 0 to 32768
[  611.301521][T11008] btrfs: Deprecated parameter 'usebackuproot'
[  611.301541][T11008] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  611.333930][T11008] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 1abd6085-5de3-4566-bac6-a0b157afaac1
[  611.333995][T11008] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.271 (11008)
[  611.339091][T11008] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  611.339118][T11008] BTRFS info (device loop2): using crc32c checksum algorithm
[  611.339145][T11008] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  611.441170][ T1525] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  611.441322][T11008] BTRFS error (device loop2): failed to load root extent
[  611.441358][T11008] BTRFS warning (device loop2): try to load backup roots slot 1
[  611.441593][ T1525] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  611.441727][T11008] BTRFS warning (device loop2): couldn't read tree root
[  611.441744][T11008] BTRFS warning (device loop2): try to load backup roots slot 2
[  611.441960][ T1525] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  611.442090][T11008] BTRFS warning (device loop2): couldn't read tree root
[  611.442105][T11008] BTRFS warning (device loop2): try to load backup roots slot 3
[  611.537452][T11008] BTRFS info (device loop2): rebuilding free space tree
[  611.586397][T11008] BTRFS info (device loop2): disabling free space tree
[  611.586477][T11008] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  611.586500][T11008] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  611.600578][T11008] BTRFS info (device loop2): checking UUID tree
[  611.601628][T11008] BTRFS info (device loop2): enabling ssd optimizations
[  611.601647][T11008] BTRFS info (device loop2): disabling tree log
[  611.601662][T11008] BTRFS info (device loop2): turning on flush-on-commit
[  611.601676][T11008] BTRFS info (device loop2): turning on async discard
[  611.601690][T11008] BTRFS info (device loop2): enabling disk space caching
[  611.601705][T11008] BTRFS info (device loop2): force clearing of disk cache
[  611.601719][T11008] BTRFS info (device loop2): trying to use backup root at mount time
[  611.601734][T11008] BTRFS info (device loop2): use zstd compression, level 3
[  611.833702][ T9360] BTRFS info (device loop2): last unmount of filesystem 1abd6085-5de3-4566-bac6-a0b157afaac1
[  612.244318][T11027] loop2: detected capacity change from 0 to 32768
[  612.245476][T11027] btrfs: Deprecated parameter 'usebackuproot'
[  612.245495][T11027] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  612.246278][T11027] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 07339eb6-fbcc-46f6-9d39-b67a9654e5e4
[  612.246335][T11027] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.272 (11027)
[  612.255340][T11027] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  612.255370][T11027] BTRFS info (device loop2): using crc32c checksum algorithm
[  612.255397][T11027] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  612.434248][ T5864] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  612.450787][T11027] BTRFS error (device loop2): failed to load root extent
[  612.450833][T11027] BTRFS warning (device loop2): try to load backup roots slot 1
[  612.451986][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  612.452534][T11027] BTRFS warning (device loop2): couldn't read tree root
[  612.452556][T11027] BTRFS warning (device loop2): try to load backup roots slot 2
[  612.452913][ T5861] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  612.454365][T11027] BTRFS warning (device loop2): couldn't read tree root
[  612.454384][T11027] BTRFS warning (device loop2): try to load backup roots slot 3
[  612.527374][T11027] BTRFS info (device loop2): rebuilding free space tree
[  612.564549][T11027] BTRFS info (device loop2): disabling free space tree
[  612.564637][T11027] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  612.564660][T11027] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  612.616041][T11027] BTRFS info (device loop2): checking UUID tree
[  612.616550][T11027] BTRFS info (device loop2): enabling ssd optimizations
[  612.616571][T11027] BTRFS info (device loop2): disabling tree log
[  612.616584][T11027] BTRFS info (device loop2): turning on flush-on-commit
[  612.616598][T11027] BTRFS info (device loop2): turning on async discard
[  612.616611][T11027] BTRFS info (device loop2): enabling disk space caching
[  612.616626][T11027] BTRFS info (device loop2): force clearing of disk cache
[  612.616641][T11027] BTRFS info (device loop2): trying to use backup root at mount time
[  612.616657][T11027] BTRFS info (device loop2): use zstd compression, level 3
[  612.843621][ T9360] BTRFS info (device loop2): last unmount of filesystem 07339eb6-fbcc-46f6-9d39-b67a9654e5e4
[  613.324678][T11046] loop2: detected capacity change from 0 to 32768
[  613.327896][T11046] btrfs: Deprecated parameter 'usebackuproot'
[  613.327917][T11046] BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
[  613.329378][T11046] BTRFS info: device /dev/loop2 (7:2) using temp-fsid 51910f4b-af59-484f-a9bc-174b748bb1d6
[  613.329436][T11046] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 (7:2) scanned by syz.2.273 (11046)
[  613.376235][T11046] BTRFS info (device loop2): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[  613.376266][T11046] BTRFS info (device loop2): using crc32c checksum algorithm
[  613.376293][T11046] BTRFS warning (device loop2): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[  613.483267][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5337088 mirror 1 wanted 0xe63dbdda found 0xc926492d level 0
[  613.483423][T11046] BTRFS error (device loop2): failed to load root extent
[  613.483458][T11046] BTRFS warning (device loop2): try to load backup roots slot 1
[  613.483804][ T5861] BTRFS warning (device loop2): checksum verify failed on logical 5324800 mirror 1 wanted 0x9f73850b found 0x80379423 level 0
[  613.483915][T11046] BTRFS warning (device loop2): couldn't read tree root
[  613.483931][T11046] BTRFS warning (device loop2): try to load backup roots slot 2
[  613.484265][ T5861] BTRFS error (device loop2): level verify failed on logical 5255168 mirror 1 wanted 0 found 1
[  613.484372][T11046] BTRFS warning (device loop2): couldn't read tree root
[  613.484388][T11046] BTRFS warning (device loop2): try to load backup roots slot 3
[  613.495933][T11046] BTRFS info (device loop2): rebuilding free space tree
[  613.587108][T11046] BTRFS info (device loop2): disabling free space tree
[  613.587203][T11046] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[  613.587226][T11046] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[  613.603249][T11046] BTRFS info (dev[  613.603249][T11046] BTRFS info (device loop2): checking UUID tree
[  613.603864][T11046] BTRFS info (device loop2): enabling ssd optimizations
[  613.603883][T11046] BTRFS info (device loop2): disabling tree log
[  613.603897][T11046] BTRFS info (device loop2): turning on flush-on-commit
[  613.603911][T11046] BTRFS info (device loop2): turning on async discard
[  613.603925][T11046] BTRFS info (device loop2): enabling disk space caching
[  613.603939][T11046] BTRFS info (device loop2): force clearing of disk cache
[  613.603953][T11046] BTRFS info (device loop2): trying to use backup root at mount time
[  613.603969][T11046] BTRFS info (device loop2): use zstd compression, level 3
[  613.622554][   T38] INFO: task kworker/u8:3:57 blocked for more than 143 seconds.
[  613.622592][   T38]       Not tainted syzkaller #0
[  613.622603][   T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  613.622613][   T38] task:kworker/u8:3    state:D stack:21600 pid:57    tgid:57    ppid:2      task_flags:0x4208160 flags:0x00080000
[  613.622667][   T38] Workqueue: writeback wb_workfn (flush-btrfs-129)
[  613.622707][   T38] Call Trace:
[  613.622717][   T38]  <TASK>
[  613.622728][   T38]  __schedule+0x16f9/0x5500
[  613.622780][   T38]  ? __blk_flush_plug+0x416/0x4d0
[  613.622803][   T38]  ? __pfx___schedule+0x10/0x10
[  613.622836][   T38]  ? schedule+0x90/0x360
[  613.622863][   T38]  schedule+0x164/0x360
[  613.622890][   T38]  btrfs_lock_extent_bits+0x59c/0x700
[  613.622917][   T38]  ? __pfx_btrfs_lock_extent_bits+0x10/0x10
[  613.622936][   T38]  ? __pfx_autoremove_wake_function+0x10/0x10
[  613.622964][   T38]  ? wait_subpage_spinlock+0x2c8/0x3a0
[  613.622992][   T38]  btrfs_invalidate_folio+0x440/0xc00
[  613.623026][   T38]  ? __pfx_btrfs_invalidate_folio+0x10/0x10
[  613.623052][   T38]  ? folio_clear_dirty_for_io+0x1d4/0x700
[  613.623071][   T38]  ? folio_clear_dirty_for_io+0x56a/0x700
[  613.623090][   T38]  ? folio_clear_dirty_for_io+0x1d4/0x700
[  613.623108][   T38]  ? folio_invalidate+0x89/0xc0
[  613.623128][   T38]  btrfs_writepages+0x12f3/0x2410
[  613.623176][   T38]  ? __pfx_btrfs_writepages+0x10/0x10
[  613.623248][   T38]  ? __pfx_btrfs_writepages+0x10/0x10
[  613.623274][   T38]  do_writepages+0x32e/0x550
[  613.623295][   T38]  ? rt_mutex_slowunlock+0x4a7/0x8b0
[  613.623316][   T38]  ? reacquire_held_locks+0x104/0x190
[  613.623340][   T38]  ? rt_spin_lock+0x1e0/0x400
[  613.623371][   T38]  __writeback_single_inode+0x133/0x10e0
[  613.623401][   T38]  ? rt_spin_unlock+0x160/0x200
[  613.623426][   T38]  writeback_sb_inodes+0x97f/0x1980
[  613.623470][   T38]  ? __pfx_writeback_sb_inodes+0x10/0x10
[  613.623524][   T38]  ? rcu_is_watching+0x15/0xb0
[  613.623557][   T38]  wb_writeback+0x445/0xb00
[  613.623580][   T38]  ? queue_io+0x251/0x440
[  613.623605][   T38]  ? __pfx_wb_writeback+0x10/0x10
[  613.623638][   T38]  wb_workfn+0x3fd/0xf20
[  613.623660][   T38]  ? look_up_lock_class+0x57/0x110
[  613.623680][   T38]  ? trace_hrtimer_start+0x82/0x200
[  613.623712][   T38]  ? __pfx_wb_workfn+0x10/0x10
[  613.623738][   T38]  ? do_raw_spin_lock+0x12b/0x2f0
[  613.623761][   T38]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  613.623782][   T38]  ? process_one_work+0x8be/0x1630
[  613.623807][   T38]  ? process_one_work+0x8be/0x1630
[  613.623857][   T38]  ? process_one_work+0x8be/0x1630
[  613.623881][   T38]  process_one_work+0x98b/0x1630
[  613.623928][   T38]  ? __pfx_process_one_work+0x10/0x10
[  613.623951][   T38]  ? do_raw_spin_lock+0x12b/0x2f0
[  613.624011][   T38]  worker_thread+0xb49/0x1140
[  613.624038][   T38]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  613.624070][   T38]  kthread+0x388/0x470
[  613.624110][   T38]  ? __pfx_worker_thread+0x10/0x10
[  613.624127][   T38]  ? __pfx_kthread+0x10/0x10
[  613.624148][   T38]  ret_from_fork+0x514/0xb70
[  613.624174][   T38]  ? __pfx_ret_from_fork+0x10/0x10
[  613.624196][   T38]  ? __switch_to+0xc79/0x1410
[  613.624218][   T38]  ? __pfx_kthread+0x10/0x10
[  613.624240][   T38]  ret_from_fork_asm+0x1a/0x30
[  613.624280][   T38]  </TASK>
[  613.624428][   T38] INFO: task syz.0.145:8523 blocked for more than 143 seconds.
[  613.624444][   T38]       Not tainted syzkaller #0
[  613.624454][   T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  613.624463][   T38] task:syz.0.145       state:D stack:22752 pid:8523  tgid:8522  ppid:5850   task_flags:0x400140 flags:0x00080002
[  613.624513][   T38] Call Trace:
[  613.624519][   T38]  <TASK>
[  613.624532][   T38]  __schedule+0x16f9/0x5500
[  613.624577][   T38]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  613.624598][   T38]  ? rt_spin_lock+0x1e0/0x400
[  613.624622][   T38]  ? __pfx___schedule+0x10/0x10
[  613.624656][   T38]  ? schedule+0x90/0x360
[  613.624682][   T38]  schedule+0x164/0x360
[  613.624708][   T38]  wb_wait_for_completion+0x3e8/0x790
[  613.624739][   T38]  ? __pfx_wb_wait_for_completion+0x10/0x10
[  613.624762][   T38]  ? __pfx_autoremove_wake_function+0x10/0x10
[  613.624794][   T38]  __writeback_inodes_sb_nr+0x24c/0x2d0
[  613.624826][   T38]  ? __pfx___writeback_inodes_sb_nr+0x10/0x10
[  613.624849][   T38]  ? try_to_writeback_inodes_sb+0x22/0xc0
[  613.624879][   T38]  ? seqcount_lockdep_reader_access+0xa9/0x100
[  613.624900][   T38]  ? lockdep_hardirqs_on+0x7a/0x110
[  613.624916][   T38]  ? get_nr_dirty_inodes+0x1c4/0x210
[  613.624945][   T38]  try_to_writeback_inodes_sb+0x9a/0xc0
[  613.624970][   T38]  ? btrfs_commit_transaction+0x17f/0x2fc0
[  613.624993][   T38]  btrfs_commit_transaction+0x813/0x2fc0
[  613.625018][   T38]  ? btrfs_commit_transaction+0x17f/0x2fc0
[  613.625058][   T38]  ? __pfx_btrfs_commit_transaction+0x10/0x10
[  613.625082][   T38]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  613.625099][   T38]  ? lockdep_hardirqs_on+0x7a/0x110
[  613.625116][   T38]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  613.625133][   T38]  ? rt_mutex_slowunlock+0x4a7/0x8b0
[  613.625158][   T38]  ? __pfx_rt_mutex_slowunlock+0x10/0x10
[  613.625181][   T38]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  613.625201][   T38]  ? lockdep_hardirqs_on+0x7a/0x110
[  613.625219][   T38]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  613.625240][   T38]  btrfs_sync_file+0xdf4/0x1230
[  613.625275][   T38]  ? __pfx_btrfs_sync_file+0x10/0x10
[  613.625305][   T38]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  613.625329][   T38]  ? reacquire_held_locks+0x104/0x190
[  613.625352][   T38]  ? rt_spin_lock+0x1e0/0x400
[  613.625393][   T38]  ? vfs_fsync_range+0x143/0x150
[  613.625420][   T38]  btrfs_do_write_iter+0x6a9/0x840
[  613.625445][   T38]  ? vfs_write+0x22d/0xba0
[  613.625474][   T38]  ? __pfx_btrfs_do_write_iter+0x10/0x10
[  613.625507][   T38]  vfs_write+0x629/0xba0
[  613.625537][   T38]  ? __pfx_vfs_write+0x10/0x10
[  613.625562][   T38]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  613.625581][   T38]  ? lockdep_hardirqs_on+0x7a/0x110
[  613.625602][   T38]  ? mutex_lock_nested+0x152/0x1d0
[  613.625623][   T38]  ? fdget_pos+0x252/0x320
[  613.625650][   T38]  ksys_write+0x156/0x270
[  613.625675][   T38]  ? __pfx_ksys_write+0x10/0x10
[  613.625704][   T38]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  613.625725][   T38]  do_syscall_64+0x15f/0x560
[  613.625744][   T38]  ? trace_irq_disable+0x3b/0x140
[  613.625765][   T38]  ? clear_bhb_loop+0x40/0x90
[  613.625787][   T38]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  613.625806][   T38] RIP: 0033:0x7f5a0bdece59
[  613.625834][   T38] RSP: 002b:00007f5a0b446028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  613.625854][   T38] RAX: ffffffffffffffda RBX: 00007f5a0c065fa0 RCX: 00007f5a0bdece59
[  613.625868][   T38] RDX: 000000000000029f RSI: 0000200000000200 RDI: 0000000000000004
[  613.625879][   T38] RBP: 00007f5a0be82d6f R08: 0000000000000000 R09: 0000000000000000
[  613.625890][   T38] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  613.625901][   T38] R13: 00007f5a0c066038 R14: 00007f5a0c065fa0 R15: 00007ffe149206b8
[  613.625932][   T38]  </TASK>
[  613.625940][   T38] INFO: task syz.0.145:8539 blocked for more than 143 seconds.
[  613.625954][   T38]       Not tainted syzkaller #0
[  613.625964][   T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  613.625973][   T38] task:syz.0.145       state:D stack:23704 pid:8539  tgid:8522  ppid:5850   task_flags:0x400140 flags:0x00080002
[  613.626021][   T38] Call Trace:
[  613.626028][   T38]  <TASK>
[  613.626038][   T38]  __schedule+0x16f9/0x5500
[  613.626081][   T38]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  613.626102][   T38]  ? rt_spin_lock+0x1e0/0x400
[  613.626126][   T38]  ? __pfx___schedule+0x10/0x10
[  613.626157][   T38]  ? schedule+0x90/0x360
[  613.626183][   T38]  schedule+0x164/0x360
[  613.626210][   T38]  wait_current_trans+0x39f/0x590
[  613.626238][   T38]  ? __pfx_wait_current_trans+0x10/0x10
[  613.626258][   T38]  ? btrfs_clone+0x1316/0x2540
[  613.626276][   T38]  ? __pfx_autoremove_wake_function+0x10/0x10
[  613.626309][   T38]  start_transaction+0xbd8/0x1820
[  613.626332][   T38]  ? start_transaction+0x800/0x1820
[  613.626365][   T38]  btrfs_clone+0x1316/0x2540
[  613.626423][   T38]  ? __pfx_btrfs_clone+0x10/0x10
[  613.626440][   T38]  ? btrfs_free_extent_state+0x11b/0x2e0
[  613.626468][   T38]  ? set_extent_bit+0x1385/0x1cc0
[  613.626499][   T38]  ? _raw_spin_unlock_irqrestore+0x4c/0x80
[  613.626525][   T38]  ? btrfs_lock_extent_bits+0xd4/0x700
[  613.626551][   T38]  ? __pfx_btrfs_lock_extent_bits+0x10/0x10
[  613.626569][   T38]  ? btrfs_lookup_first_ordered_extent+0x47d/0x620
[  613.626600][   T38]  ? btrfs_wait_ordered_range+0x23f/0x260
[  613.626627][   T38]  btrfs_clone_files+0x271/0x3f0
[  613.626653][   T38]  ? __pfx_btrfs_clone_files+0x10/0x10
[  613.626676][   T38]  ? generic_remap_file_range_prep+0x3e/0x60
[  613.626705][   T38]  btrfs_remap_file_range+0x76b/0x1320
[  613.626740][   T38]  ? __pfx_btrfs_remap_file_range+0x10/0x10
[  613.626768][   T38]  ? do_vfs_ioctl+0xe15/0x1540
[  613.626802][   T38]  vfs_clone_file_range+0x435/0x7b0
[  613.626835][   T38]  do_vfs_ioctl+0xe15/0x1540
[  613.626861][   T38]  ? __pfx_do_vfs_ioctl+0x10/0x10
[  613.626887][   T38]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  613.626911][   T38]  ? rt_spin_lock+0x1e0/0x400
[  613.626953][   T38]  ? __fget_files+0x2a/0x420
[  613.626976][   T38]  ? __fget_files+0x2a/0x420
[  613.626993][   T38]  ? __fget_files+0x3a6/0x420
[  613.627011][   T38]  ? __fget_files+0x2a/0x420
[  613.627032][   T38]  ? bpf_lsm_file_ioctl+0x9/0x20
[  613.627060][   T38]  __se_sys_ioctl+0x82/0x170
[  613.627082][   T38]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  613.627102][   T38]  do_syscall_64+0x15f/0x560
[  613.627121][   T38]  ? trace_irq_disable+0x3b/0x140
[  613.627140][   T38]  ? clear_bhb_loop+0x40/0x90
[  613.627163][   T38]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  613.627181][   T38] RIP: 0033:0x7f5a0bdece59
[  613.627197][   T38] RSP: 002b:00007f5a0b425028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  613.627216][   T38] RAX: ffffffffffffffda RBX: 00007f5a0c066090 RCX: 00007f5a0bdece59
[  613.627230][   T38] RDX: 00002000000000c0 RSI: 000000004020940d RDI: 0000000000000004
[  613.627242][   T38] RBP: 00007f5a0be82d6f R08: 0000000000000000 R09: 0000000000000000
[  613.627254][   T38] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  613.627265][   T38] R13: 00007f5a0c066128 R14: 00007f5a0c066090 R15: 00007ffe149206b8
[  613.627296][   T38]  </TASK>
[  613.627349][   T38] 
[  613.627349][   T38] Showing all locks held in the system:
[  613.627360][   T38] 4 locks held by pr/legacy/17:
[  613.627370][   T38]  #0: ffffffff8dfbce40 (console_lock){+.+.}-{0:0}, at: legacy_kthread_func+0x1a3/0x250
[  613.627423][   T38]  #1: ffffffff8dea4738 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfa/0xb90
[  613.627467][   T38]  #2: ffffffff99ba1f78 (&port_lock_key){+.+.}-{3:3}, at: serial8250_console_write+0x179/0x1b90
[  613.627511][   T38]  #3: ffffffff8dfcabc0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[  613.627558][   T38] 1 lock held by khungtaskd/38:
[  613.627568][   T38]  #0: ffffffff8dfcabc0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  613.627618][   T38] 2 locks held by kworker/u8:3/57:
[  613.627629][   T38]  #0: ffff88801b6b3938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[  613.627677][   T38]  #1: ffffc9000123fc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[  613.627748][   T38] 2 locks held by getty/5375:
[  613.627758][   T38]  #0: ffff8880360c50a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  613.627808][   T38]  #1: ffffc90003cbe2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13a0
[  613.627854][   T38] 2 locks held by kworker/u8:5/5860:
[  613.627865][   T38]  #0: ffff88801b6b3938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[  613.627912][   T38]  #1: ffffc90003937c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[  613.627963][   T38] 6 locks held by syz.0.145/8523:
[  613.627973][   T38]  #0: ffff88803720ef28 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x252/0x320
[  613.628021][   T38]  #1: ffff88802b4ca480 (sb_writers#12){.+.+}-{0:0}, at: vfs_write+0x22d/0xba0
[  613.628069][   T38]  #2: ffff88802b4ca770 (sb_internal#2){.+.+}-{0:0}, at: btrfs_sync_file+0xcae/0x1230
[  613.628122][   T38]  #3: ffff8880371eb110 (btrfs_trans_num_writers){++++}-{0:0}, at: join_transaction+0x612/0xd50
[  613.628168][   T38]  #4: ffff8880371eb138 (btrfs_trans_num_extwriters){++++}-{0:0}, at: join_transaction+0x612/0xd50
[  613.628214][   T38]  #5: ffff88802b4ca0d0 (&type->s_umount_key#55){++++}-{4:4}, at: try_to_writeback_inodes_sb+0x22/0xc0
[  613.628266][   T38] 4 locks held by syz.0.145/8539:
[  613.628277][   T38]  #0: ffff88802b4ca480 (sb_writers#12){.+.+}-{0:0}, at: do_vfs_ioctl+0xe15/0x1540
[  613.628326][   T38]  #1: ffff888059b39080 (&sb->s_type->i_mutex_key#24){+.+.}-{4:4}, at: btrfs_inode_lock+0x51/0xe0
[  613.628376][   T38]  #2: ffff888059b38ee0 (&ei->i_mmap_lock){+.+.}-{4:4}, at: btrfs_inode_lock+0xcb/0xe0
[  613.628427][   T38]  #3: ffff88802b4ca770 (sb_internal#2){.+.+}-{0:0}, at: btrfs_clone+0x1316/0x2540
[  613.628473][   T38] 1 lock held by btrfs-transacti/8537:
[  613.628484][   T38]  #0: ffff8880371e8d98 (&fs_info->transaction_kthread_mutex){+.+.}-{4:4}, at: transaction_kthread+0xe6/0x450
[  613.628530][   T38] 6 locks held by syz.1.185/9335:
[  613.628541][   T38]  #0: ffff88803e944128 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x252/0x320
[  613.628582][   T38]  #1: ffff888057250480 (sb_writers#12){.+.+}-{0:0}, at: vfs_write+0x22d/0xba0
[  613.628630][   T38]  #2: ffff888057250770 (sb_internal#2){.+.+}-{0:0}, at: btrfs_sync_file+0xcae/0x1230
[  613.628680][   T38]  #3: ffff8880263fb110 (btrfs_trans_num_writers){++++}-{0:0}, at: join_transaction+0x612/0xd50
[  613.628727][   T38]  #4: ffff8880263fb138 (btrfs_trans_num_extwriters){++++}-{0:0}, at: join_transaction+0x612/0xd50
[  613.628772][   T38]  #5: ffff8880572500d0 (&type->s_umount_key#55){++++}-{4:4}, at: try_to_writeback_inodes_sb+0x22/0xc0
[  613.628823][   T38] 4 locks held by syz.1.185/9353:
[  613.628834][   T38]  #0: ffff888057250480 (sb_writers#12){.+.+}-{0:0}, at: do_vfs_ioctl+0xe15/0x1540
[  613.628885][   T38]  #1: ffff888044751ab8 (&sb->s_type->i_mutex_key#24){+.+.}-{4:4}, at: btrfs_inode_lock+0x51/0xe0
[  613.628935][   T38]  #2: ffff888044751918 (&ei->i_mmap_lock){+.+.}-{4:4}, at: btrfs_inode_lock+0xcb/0xe0
[  613.628979][   T38]  #3: ffff888057250770 (sb_internal#2){.+.+}-{0:0}, at: btrfs_clone+0x1316/0x2540
[  613.629023][   T38] 1 lock held by btrfs-transacti/9351:
[  613.629034][   T38]  #0: ffff8880263f8d98 (&fs_info->transaction_kthread_mutex){+.+.}-{4:4}, at: transaction_kthread+0xe6/0x450
[  613.629076][   T38] 6 locks held by udevd/9397:
[  613.629085][   T38]  #0: ffff8880232f23c8 (&sb->s_type->i_mutex_key#10){++++}-{4:4}, at: blkdev_read_iter+0x2ff/0x440
[  613.629134][   T38]  #1: ffff8880232f2598 (mapping.invalidate_lock){++++}-{4:4}, at: force_page_cache_ra+0x2ec/0x360
[  613.629179][   T38]  #2: ffffffff8dfcabc0 (rcu_read_lock){....}-{1:3}, at: blk_mq_dispatch_queue_requests+0x552/0x800
[  613.629224][   T38]  #3: ffff8880b863b860 (&rq->__lock){-...}-{2:2}, at: rt_spin_trylock+0x10c/0x2b0
[  613.629269][   T38]  #4: ffffffff8dfcabc0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[  613.629312][   T38]  #5: ffffffff8dfcabc0 (rcu_read_lock){....}-{1:3}, at: page_table_check_set+0x126/0x510
[  613.629358][   T38] 
[  613.629363][   T38] =============================================
[  613.629363][   T38] 
[  613.629389][   T38] NMI backtrace for cpu 1
[  613.629411][   T38] CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  613.629430][   T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  613.629439][   T38] Call Trace:
[  613.629447][   T38]  <TASK>
[  613.629455][   T38]  dump_stack_lvl+0xe8/0x150
[  613.629480][   T38]  nmi_cpu_backtrace+0x274/0x2d0
[  613.629503][   T38]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  613.629528][   T38]  nmi_trigger_cpumask_backtrace+0x17a/0x380
[  613.629554][   T38]  sys_info+0x135/0x170
[  613.629576][   T38]  watchdog+0xfd3/0x1030
[  613.629602][   T38]  ? watchdog+0x1c9/0x1030
[  613.629626][   T38]  kthread+0x388/0x470
[  613.629646][   T38]  ? __pfx_watchdog+0x10/0x10
[  613.629664][   T38]  ? __pfx_kthread+0x10/0x10
[  613.629684][   T38]  ret_from_fork+0x514/0xb70
[  613.629707][   T38]  ? __pfx_ret_from_fork+0x10/0x10
[  613.629728][   T38]  ? __switch_to+0xc79/0x1410
[  613.629749][   T38]  ? __pfx_kthread+0x10/0x10
[  613.629771][   T38]  ret_from_fork_asm+0x1a/0x30
[  613.629807][   T38]  </TASK>
[  613.629814][   T38] Sending NMI from CPU 1 to CPUs 0:
[  613.629842][    C0] NMI backtrace for cpu 0
[  613.629856][    C0] CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  613.629875][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  613.629884][    C0] RIP: 0010:__lock_acquire+0x9a5/0x2d10
[  613.629906][    C0] Code: 4a 86 ff 48 c7 c7 71 ba 70 8d e8 d6 6e 86 ff e8 41 9e 91 ff e8 8c cc 03 00 e9 93 0a 00 00 41 83 be e8 0b 00 00 00 41 0f 94 c4 <41> 80 f4 03 41 3b 9e f8 0b 00 00 0f 8d 19 fc ff ff e9 1f fb ff ff
[  613.629921][    C0] RSP: 0018:ffffc90000007c98 EFLAGS: 00000046
[  613.629935][    C0] RAX: 0000000000000001 RBX: 0000000000000003 RCX: 00000000000e40aa
[  613.629945][    C0] RDX: 0000000000000002 RSI: 0000000000004000 RDI: 0000000000000000
[  613.629956][    C0] RBP: ffff88801d682b78 R08: ffffffff81b1ebf9 R09: ffff8880b8628418
[  613.629968][    C0] R10: dffffc0000000000 R11: ffffffff81b1eb00 R12: 0000000000000001
[  613.629979][    C0] R13: ffff88801d682b78 R14: ffff88801d681f00 R15: 0000000000000002
[  613.629991][    C0] FS:  0000000000000000(0000) GS:ffff888125eec000(0000) knlGS:0000000000000000
[  613.630004][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  613.630015][    C0] CR2: 00007f02a929f000 CR3: 0000000024f2c000 CR4: 00000000003526f0
[  613.630030][    C0] Call Trace:
[  613.630036][    C0]  <IRQ>
[  613.630046][    C0]  ? do_raw_spin_lock+0x12b/0x2f0
[  613.630064][    C0]  ? ktime_get_update_offsets_now+0x5d/0x3e0
[  613.630084][    C0]  ? lock_acquire+0x106/0x350
[  613.630104][    C0]  ? hrtimer_interrupt+0xf9/0x950
[  613.630125][    C0]  lock_acquire+0x106/0x350
[  613.630149][    C0]  ? hrtimer_interrupt+0xf9/0x950
[  613.630173][    C0]  ? __hrtimer_get_next_event+0x51f/0x600
[  613.630196][    C0]  _raw_spin_lock_irqsave+0x40/0x60
[  613.630211][    C0]  ? hrtimer_interrupt+0xf9/0x950
[  613.630231][    C0]  hrtimer_interrupt+0xf9/0x950
[  613.630253][    C0]  ? kvm_sched_clock_read+0x11/0x20
[  613.630266][    C0]  ? sched_clock+0x3f/0x60
[  613.630281][    C0]  ? sched_clock_cpu+0x74/0x440
[  613.630302][    C0]  ? __pfx_sched_clock_cpu+0x10/0x10
[  613.630322][    C0]  ? __pfx_sched_clock_cpu+0x10/0x10
[  613.630346][    C0]  __sysvec_apic_timer_interrupt+0x102/0x430
[  613.630369][    C0]  sysvec_apic_timer_interrupt+0xa1/0xc0
[  613.630392][    C0]  </IRQ>
[  613.630398][    C0]  <TASK>
[  613.630404][    C0]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  613.630421][    C0] RIP: 0010:unwind_next_frame+0x515/0x2550
[  613.630443][    C0] Code: 83 e0 fe 4c 8d 3c 45 00 00 00 00 49 01 ef 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 27 49 63 07 <4c> 01 f8 49 8d 4f 04 4c 39 e0 48 0f 46 e9 49 8d 47 fc 48 0f 47 d8
[  613.630455][    C0] RSP: 0018:ffffc90000147618 EFLAGS: 00000246
[  613.630468][    C0] RAX: fffffffff282df12 RBX: ffffffff8facfe80 RCX: dffffc0000000000
[  613.630480][    C0] RDX: ffffffff8facfe44 RSI: ffffffff90281a54 RDI: ffffffff8ba9cd20
[  613.630492][    C0] RBP: ffffffff8facfe44 R08: 0000000000000010 R09: ffffffff8dfcabc0
[  613.630503][    C0] R10: ffffc90000147738 R11: ffffffff81b048a0 R12: ffffffff822fdd2c
[  613.630515][    C0] R13: ffffffff8facfe44 R14: ffffc900001476e8 R15: ffffffff8facfe60
[  613.630528][    C0]  ? kasan_record_aux_stack+0xbc/0xd0
[  613.630549][    C0]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[  613.630571][    C0]  ? unwind_next_frame+0xd5/0x2550
[  613.630593][    C0]  ? unwind_next_frame+0xa6/0x2550
[  613.630613][    C0]  ? kasan_record_aux_stack+0xbd/0xd0
[  613.630633][    C0]  ? kasan_record_aux_stack+0xbd/0xd0
[  613.630654][    C0]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[  613.630670][    C0]  arch_stack_walk+0x11b/0x150
[  613.630694][    C0]  ? kasan_record_aux_stack+0xbd/0xd0
[  613.630715][    C0]  stack_trace_save+0xa9/0x100
[  613.630736][    C0]  ? __pfx_stack_trace_save+0x10/0x10
[  613.630754][    C0]  kasan_save_stack+0x3e/0x60
[  613.630769][    C0]  ? kasan_save_stack+0x3e/0x60
[  613.630784][    C0]  ? kasan_record_aux_stack+0xbd/0xd0
[  613.630822][    C0]  ? mempool_free+0xf5/0x140
[  613.630836][    C0]  kasan_record_aux_stack+0xbd/0xd0
[  613.630855][    C0]  ? __pfx_slab_free_after_rcu_debug+0x10/0x10
[  613.630876][    C0]  call_rcu+0xee/0x890
[  613.630900][    C0]  ? mempool_free+0xf5/0x140
[  613.630914][    C0]  kmem_cache_free+0x526/0x6c0
[  613.630933][    C0]  ? __pfx_mempool_free_slab+0x10/0x10
[  613.630947][    C0]  mempool_free+0xf5/0x140
[  613.630961][    C0]  ? __pfx_mempool_free+0x10/0x10
[  613.630975][    C0]  ? bio_put+0x91/0x830
[  613.630996][    C0]  ? bio_free+0x259/0x330
[  613.631016][    C0]  blk_update_request+0x57e/0xe60
[  613.631036][    C0]  blk_mq_end_request+0x3e/0x70
[  613.631051][    C0]  blk_done_softirq+0x10a/0x160
[  613.631072][    C0]  handle_softirqs+0x1de/0x6d0
[  613.631090][    C0]  ? smpboot_thread_fn+0x4d/0xa50
[  613.631107][    C0]  run_ksoftirqd+0x52/0x180
[  613.631123][    C0]  smpboot_thread_fn+0x541/0xa50
[  613.631146][    C0]  ? smpboot_thread_fn+0x4d/0xa50
[  613.631165][    C0]  kthread+0x388/0x470
[  613.631181][    C0]  ? __pfx_smpboot_thread_fn+0x10/0x10
[  613.631197][    C0]  ? __pfx_kthread+0x10/0x10
[  613.631214][    C0]  ret_from_fork+0x514/0xb70
[  613.631232][    C0]  ? __pfx_ret_from_fork+0x10/0x10
[  613.631250][    C0]  ? __switch_to+0xc79/0x1410
[  613.631266][    C0]  ? __pfx_kthread+0x10/0x10
[  613.631283][    C0]  ret_from_fork_asm+0x1a/0x30
[  613.631309][    C0]  </TASK>
[  613.631849][   T38] Kernel panic - not syncing: hung_task: blocked tasks
[  613.631870][   T38] CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  613.631890][   T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  613.631900][   T38] Call Trace:
[  613.631908][   T38]  <TASK>
[  613.631915][   T38]  vpanic+0x56c/0xa60
[  613.631943][   T38]  ? __pfx_vpanic+0x10/0x10
[  613.631974][   T38]  panic+0xc5/0xd0
[  613.631997][   T38]  ? __pfx_panic+0x10/0x10
[  613.632017][   T38]  ? __x2apic_send_IPI_mask+0x158/0x190
[  613.632041][   T38]  ? wq_watchdog_touch+0xf9/0x160
[  613.632068][   T38]  ? nmi_trigger_cpumask_backtrace+0x247/0x380
[  613.632095][   T38]  watchdog+0x102c/0x1030
[  613.632131][   T38]  ? watchdog+0x1c9/0x1030
[  613.632155][   T38]  kthread+0x388/0x470
[  613.632174][   T38]  ? __pfx_watchdog+0x10/0x10
[  613.632191][   T38]  ? __pfx_kthread+0x10/0x10
[  613.632211][   T38]  ret_from_fork+0x514/0xb70
[  613.632234][   T38]  ? __pfx_ret_from_fork+0x10/0x10
[  613.632255][   T38]  ? __switch_to+0xc79/0x1410
[  613.632275][   T38]  ? __pfx_kthread+0x10/0x10
[  613.632296][   T38]  ret_from_fork_asm+0x1a/0x30
[  613.632331][   T38]  </TASK>
[  613.632872][   T38] Kernel Offset: disabled