6.209299][  T429] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  336.225154][  T112] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  336.250475][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  336.266238][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  336.281660][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  336.281660][  T386] 
[  336.305762][  T112] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  336.312541][  T429] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  336.332236][  T112] EXT4-fs (loop1): This should not happen!! Data will be lost
[  336.332236][  T112] 
[  336.343771][  T429] EXT4-fs (loop0): This should not happen!! Data will be lost
[  336.343771][  T429] 
[  336.373440][T14963] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  336.388130][T14964] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  336.406795][  T386] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  336.413298][T14964] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  336.422526][  T386] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  336.448324][  T386] EXT4-fs (loop3): This should not happen!! Data will be lost
[  336.448324][  T386] 
[  336.448830][  T112] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  336.472712][  T112] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  336.485486][  T112] EXT4-fs (loop5): This should not happen!! Data will be lost
[  336.485486][  T112] 
[  336.514543][T14969] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  336.639378][  T112] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  336.666450][T14976] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  336.668246][  T112] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  336.696703][  T112] EXT4-fs (loop2): This should not happen!! Data will be lost
[  336.696703][  T112] 
[  336.711588][T14975] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  336.722478][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  336.773264][T14981] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  336.782865][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  336.783465][T14979] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  336.801894][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  336.801894][  T386] 
[  336.858281][  T429] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  336.898625][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  336.903095][  T429] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  336.927968][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  336.942240][  T429] EXT4-fs (loop1): This should not happen!! Data will be lost
[  336.942240][  T429] 
[  336.952236][T14981] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  336.954416][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  336.954416][  T112] 
[  336.979372][T14979] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  337.008475][T14979] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  337.011403][T14981] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  337.040704][T14994] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  337.041258][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  337.053063][T14998] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  337.069005][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  337.090267][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  337.090267][  T112] 
[  337.090738][  T429] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  337.115227][  T429] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  337.128733][  T429] EXT4-fs (loop5): This should not happen!! Data will be lost
[  337.128733][  T429] 
[  337.250122][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  337.274787][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  337.293369][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  337.293369][  T429] 
[  337.310156][T15006] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  337.322533][  T386] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  337.360181][  T386] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  337.376501][  T386] EXT4-fs (loop2): This should not happen!! Data will be lost
[  337.376501][  T386] 
[  337.423080][T15013] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  337.447368][T15012] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  337.463281][T15015] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  337.543994][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  337.620843][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  337.649589][T15027] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  337.686493][T15015] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  337.709506][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  337.709506][  T386] 
[  337.731006][T15015] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  337.753696][  T429] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  337.768973][T15027] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm syz-executor.4: bad extent address lblock: 249, depth: 1 pblock 0
[  337.790381][ T1267] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  337.815040][  T429] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  337.822206][ T1267] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  337.831938][T15032] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  337.842678][ T1267] EXT4-fs (loop3): This should not happen!! Data will be lost
[  337.842678][ T1267] 
[  337.852004][T15027] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  337.869510][  T429] EXT4-fs (loop0): This should not happen!! Data will be lost
[  337.869510][  T429] 
[  337.875525][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  337.900530][T15027] EXT4-fs error (device loop4): ext4_ext_truncate:4481: inode #19: comm syz-executor.4: mark_inode_dirty error
[  337.916302][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  337.931275][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  337.931275][ T1267] 
[  337.951152][T15027] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  337.964024][T15027] EXT4-fs error (device loop4): ext4_truncate:4403: inode #19: comm syz-executor.4: mark_inode_dirty error
[  338.069030][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  338.085812][  T386] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  338.108263][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  338.110801][  T386] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  338.132322][T15040] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  338.135693][  T386] EXT4-fs (loop2): This should not happen!! Data will be lost
[  338.135693][  T386] 
[  338.157516][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  338.157516][ T1267] 
[  338.188390][T15046] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  338.337330][T15051] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  338.353132][T15046] EXT4-fs error (device loop0): ext4_map_blocks:742: inode #19: block 277: comm syz-executor.0: lblock 149 mapped to illegal pblock 277 (length 1)
2026/08/21 20:23:15 executed programs: 2683
[  338.372485][T15046] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  338.393435][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  338.434873][T15046] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  338.446385][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  338.450428][T15046] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  338.472441][T15046] EXT4-fs error (device loop0): ext4_ext_truncate:4481: inode #19: comm syz-executor.0: mark_inode_dirty error
[  338.482249][  T429] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  338.485712][T15046] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  338.509001][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  338.509001][  T386] 
[  338.511769][T15062] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  338.531493][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  338.547149][  T429] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  338.557060][T15058] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  338.559991][  T429] EXT4-fs (loop5): This should not happen!! Data will be lost
[  338.559991][  T429] 
[  338.571023][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  338.594218][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  338.594218][  T112] 
[  338.594777][T15046] EXT4-fs error (device loop0): ext4_truncate:4403: inode #19: comm syz-executor.0: mark_inode_dirty error
[  338.684021][  T386] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  338.707133][  T386] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  338.720415][  T386] EXT4-fs (loop0): This should not happen!! Data will be lost
[  338.720415][  T386] 
[  338.835905][T15075] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  338.856334][T15082] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  338.888062][T15074] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  338.900160][T15077] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  338.942770][T15082] EXT4-fs error (device loop0): ext4_map_blocks:742: inode #19: block 409: comm syz-executor.0: lblock 281 mapped to illegal pblock 409 (length 1)
[  338.961743][T15082] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  338.978287][T15082] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  338.991959][T15082] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  339.001977][T15082] EXT4-fs error (device loop0): ext4_ext_truncate:4481: inode #19: comm syz-executor.0: mark_inode_dirty error
[  339.015867][T15082] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  339.026435][T15082] EXT4-fs error (device loop0): ext4_truncate:4403: inode #19: comm syz-executor.0: mark_inode_dirty error
[  339.032916][T15075] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 496: comm syz-executor.1: lblock 352 mapped to illegal pblock 496 (length 1)
[  339.058552][  T433] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  339.098969][  T433] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  339.135653][  T386] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  339.161298][  T433] EXT4-fs (loop0): This should not happen!! Data will be lost
[  339.161298][  T433] 
[  339.174499][  T386] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  339.174509][T15075] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  339.175296][T15075] EXT4-fs error (device loop1): ext4_ext_truncate:4481: inode #19: comm syz-executor.1: mark_inode_dirty error
[  339.187725][  T386] EXT4-fs (loop5): This should not happen!! Data will be lost
[  339.187725][  T386] 
[  339.248560][T15075] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  339.265316][T15075] EXT4-fs error (device loop1): ext4_truncate:4403: inode #19: comm syz-executor.1: mark_inode_dirty error
[  339.269931][  T433] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  339.292286][  T433] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  339.308721][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  339.309721][  T433] EXT4-fs (loop3): This should not happen!! Data will be lost
[  339.309721][  T433] 
[  339.334580][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  339.347247][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  339.347247][  T386] 
[  339.392045][T15098] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  339.496096][T15096] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  339.531065][T15104] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  339.553370][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  339.595049][T15106] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  339.605536][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  339.611007][T15108] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  339.631166][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  339.631166][  T386] 
[  339.698120][  T429] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  339.734279][  T429] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  339.764521][T15108] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  339.767311][T15111] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  339.779676][T15108] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  339.802810][  T429] EXT4-fs (loop2): This should not happen!! Data will be lost
[  339.802810][  T429] 
[  339.849804][  T386] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:3: lblock 0 mapped to illegal pblock 112 (length 1)
[  339.865389][  T433] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  339.877104][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  339.881426][  T433] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  339.893862][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  339.893862][  T386] 
[  339.913902][  T433] EXT4-fs (loop5): This should not happen!! Data will be lost
[  339.913902][  T433] 
[  339.941469][  T386] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  339.957950][  T386] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  339.973796][  T386] EXT4-fs (loop3): This should not happen!! Data will be lost
[  339.973796][  T386] 
[  339.986568][  T433] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  340.003290][  T433] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  340.017767][  T433] EXT4-fs (loop0): This should not happen!! Data will be lost
[  340.017767][  T433] 
[  340.046941][T15128] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  340.167811][T15131] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  340.186145][T15138] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  340.199368][T15137] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  340.210901][T15144] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  340.270843][T15141] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  340.309127][  T433] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  340.391042][  T386] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  340.407262][  T433] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  340.412639][T15141] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 470: comm syz-executor.1: lblock 342 mapped to illegal pblock 470 (length 1)
[  340.420274][  T429] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  340.436073][T15141] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  340.457345][  T386] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  340.460840][ T1267] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  340.487781][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  340.490766][  T433] EXT4-fs (loop4): This should not happen!! Data will be lost
[  340.490766][  T433] 
[  340.502512][ T1267] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  340.512061][T15141] EXT4-fs error (device loop1): ext4_ext_truncate:4481: inode #19: comm syz-executor.1: mark_inode_dirty error
[  340.525339][  T386] EXT4-fs (loop2): This should not happen!! Data will be lost
[  340.525339][  T386] 
[  340.537994][  T429] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  340.548877][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  340.562133][  T429] EXT4-fs (loop5): This should not happen!! Data will be lost
[  340.562133][  T429] 
[  340.575265][T15141] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  340.587877][ T1267] EXT4-fs (loop3): This should not happen!! Data will be lost
[  340.587877][ T1267] 
[  340.595160][T15141] EXT4-fs error (device loop1): ext4_truncate:4403: inode #19: comm syz-executor.1: mark_inode_dirty error
[  340.625620][  T433] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  340.629070][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  340.629070][  T112] 
[  340.661863][  T433] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  340.675372][  T433] EXT4-fs (loop1): This should not happen!! Data will be lost
[  340.675372][  T433] 
[  341.018357][T15167] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  341.030370][T15164] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  341.040766][T15166] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  341.052584][T15168] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  341.071291][T15160] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  341.118829][T15175] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  341.151571][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  341.167140][  T386] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  341.209475][  T433] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  341.226180][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  341.234255][T15189] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  341.245306][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  341.245306][  T112] 
[  341.269113][ T1267] EXT4-fs error (device loop2): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:7: lblock 0 mapped to illegal pblock 112 (length 1)
[  341.278626][  T386] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  341.302687][ T1267] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  341.302736][T15189] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  341.317252][ T1267] EXT4-fs (loop2): This should not happen!! Data will be lost
[  341.317252][ T1267] 
[  341.343145][  T386] EXT4-fs (loop5): This should not happen!! Data will be lost
[  341.343145][  T386] 
[  341.353261][  T433] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  341.366845][  T469] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  341.382918][  T433] EXT4-fs (loop1): This should not happen!! Data will be lost
[  341.382918][  T433] 
[  341.394509][  T469] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  341.410336][  T433] EXT4-fs error (device loop3): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:5: lblock 0 mapped to illegal pblock 112 (length 1)
[  341.430803][  T469] EXT4-fs (loop4): This should not happen!! Data will be lost
[  341.430803][  T469] 
[  341.451837][  T433] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  341.465253][  T433] EXT4-fs (loop3): This should not happen!! Data will be lost
[  341.465253][  T433] 
[  341.681759][T15192] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  341.694623][T15194] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  341.789932][T15204] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  341.803065][T15202] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  341.813429][T15207] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  341.881456][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  341.912644][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  341.924384][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  341.939714][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  341.950338][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  341.950338][  T469] 
[  341.973976][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  341.973976][  T433] 
[  341.988623][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  342.004740][  T386] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  342.031173][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  342.041712][  T386] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  342.045806][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  342.045806][  T112] 
[  342.059994][  T433] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  342.073554][  T386] EXT4-fs (loop5): This should not happen!! Data will be lost
[  342.073554][  T386] 
[  342.090000][  T433] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  342.120251][T15223] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  342.128872][  T433] EXT4-fs (loop1): This should not happen!! Data will be lost
[  342.128872][  T433] 
[  342.376949][T15227] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  342.386445][T15230] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  342.399130][T15234] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  342.410337][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  342.434712][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  342.456386][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  342.456386][  T386] 
[  342.474973][T15238] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  342.518331][T15247] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  342.571954][  T386] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  342.588963][  T112] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  342.618993][  T112] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  342.633613][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  342.635888][  T386] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  342.670634][  T112] EXT4-fs (loop2): This should not happen!! Data will be lost
[  342.670634][  T112] 
[  342.690321][  T386] EXT4-fs (loop0): This should not happen!! Data will be lost
[  342.690321][  T386] 
[  342.720774][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  342.734235][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  342.749744][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  342.749744][ T1267] 
[  342.760072][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  342.787064][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  342.787064][  T386] 
[  342.792599][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  342.820963][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  342.835946][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  342.835946][  T112] 
[  342.871691][T15254] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  343.042943][T15261] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  343.130040][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  343.155612][T15271] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  343.178891][T15270] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  343.180860][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  343.214852][T15277] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  343.250709][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  343.272711][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  343.272711][ T1267] 
[  343.290812][T15270] EXT4-fs error (device loop3): ext4_map_blocks:742: inode #19: block 363: comm syz-executor.3: lblock 235 mapped to illegal pblock 363 (length 1)
[  343.293554][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  343.319437][T15271] EXT4-fs error (device loop5): ext4_map_blocks:742: inode #19: block 389: comm syz-executor.5: lblock 261 mapped to illegal pblock 389 (length 1)
[  343.325928][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  343.325928][  T469] 
[  343.357479][  T112] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  343.373415][T15270] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  343.391659][T15270] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  343.394159][  T112] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  343.409176][T15270] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  343.432093][T15271] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  343.441807][T15288] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  343.447512][  T112] EXT4-fs (loop2): This should not happen!! Data will be lost
[  343.447512][  T112] 
[  343.462559][T15288] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
2026/08/21 20:23:20 executed programs: 2726
[  343.474421][T15271] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  343.506715][ T1267] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:7: lblock 0 mapped to illegal pblock 112 (length 1)
[  343.512346][T15271] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  343.523335][T15270] EXT4-fs error (device loop3): ext4_ext_truncate:4481: inode #19: comm syz-executor.3: mark_inode_dirty error
[  343.536028][T15271] EXT4-fs error (device loop5): ext4_ext_truncate:4481: inode #19: comm syz-executor.5: mark_inode_dirty error
[  343.564025][T15271] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  343.568629][ T1267] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  343.581899][T15270] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  343.596233][ T1267] EXT4-fs (loop1): This should not happen!! Data will be lost
[  343.596233][ T1267] 
[  343.604576][T15271] EXT4-fs error (device loop5): ext4_truncate:4403: inode #19: comm syz-executor.5: mark_inode_dirty error
[  343.618336][T15270] EXT4-fs error (device loop3): ext4_truncate:4403: inode #19: comm syz-executor.3: mark_inode_dirty error
[  343.730878][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  343.749493][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  343.759425][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  343.781786][T15290] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  343.782607][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  343.818526][T15295] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  343.821192][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  343.821192][  T112] 
[  343.863362][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  343.863362][ T1267] 
[  343.894687][T15298] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  343.907855][T15300] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  343.956270][T15290] EXT4-fs error (device loop4): ext4_read_block_bitmap_nowait:476: comm syz-executor.4: Invalid block bitmap block 0 in block_group 0
[  343.972849][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  344.006420][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  344.028652][T15290] EXT4-fs error (device loop4): ext4_discard_preallocations:4605: comm syz-executor.4: Error -117 reading block bitmap for 0
[  344.056722][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  344.068490][T15311] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  344.095466][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  344.095466][  T112] 
[  344.101305][  T433] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  344.122167][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  344.127987][  T433] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  344.156636][  T429] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  344.165452][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  344.165452][ T1267] 
[  344.195152][  T433] EXT4-fs (loop1): This should not happen!! Data will be lost
[  344.195152][  T433] 
[  344.199270][  T429] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  344.219462][  T429] EXT4-fs (loop2): This should not happen!! Data will be lost
[  344.219462][  T429] 
[  344.275077][  T429] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  344.291310][  T429] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  344.306011][  T429] EXT4-fs (loop3): This should not happen!! Data will be lost
[  344.306011][  T429] 
[  344.600674][T15328] EXT4-fs error (device loop2): ext4_map_blocks:742: inode #19: block 251: comm syz-executor.2: lblock 123 mapped to illegal pblock 251 (length 1)
[  344.650533][T15328] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  344.661059][T15328] EXT4-fs error (device loop2): ext4_ext_truncate:4481: inode #19: comm syz-executor.2: mark_inode_dirty error
[  344.674048][T15328] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  344.682803][T15329] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  344.684556][T15328] EXT4-fs error (device loop2): ext4_truncate:4403: inode #19: comm syz-executor.2: mark_inode_dirty error
[  344.724619][  T433] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  344.741753][  T429] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  344.759914][ T1267] EXT4-fs error (device loop2): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:7: lblock 0 mapped to illegal pblock 112 (length 1)
[  344.770648][  T433] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  344.789159][ T1267] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  344.803018][T15329] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  344.809298][  T429] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  344.836318][  T429] EXT4-fs (loop0): This should not happen!! Data will be lost
[  344.836318][  T429] 
[  344.858371][  T433] EXT4-fs (loop4): This should not happen!! Data will be lost
[  344.858371][  T433] 
[  344.863468][ T1267] EXT4-fs (loop2): This should not happen!! Data will be lost
[  344.863468][ T1267] 
[  344.879990][  T429] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  344.880251][  T433] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  344.910460][  T429] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  344.910480][  T433] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  344.936432][  T433] EXT4-fs (loop3): This should not happen!! Data will be lost
[  344.936432][  T433] 
[  344.947707][  T429] EXT4-fs (loop1): This should not happen!! Data will be lost
[  344.947707][  T429] 
[  345.111845][  T433] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  345.127677][  T433] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  345.149779][  T433] EXT4-fs (loop5): This should not happen!! Data will be lost
[  345.149779][  T433] 
[  345.291099][  T386] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  345.332374][  T386] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  345.351718][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  345.375932][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  345.382294][  T386] EXT4-fs (loop0): This should not happen!! Data will be lost
[  345.382294][  T386] 
[  345.410723][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  345.410723][  T429] 
[  345.412563][T15366] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  345.436968][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  345.449753][T15366] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  345.476377][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  345.479464][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  345.492451][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  345.519445][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  345.519445][  T386] 
[  345.520384][  T469] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  345.533863][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  345.533863][  T433] 
[  345.546426][  T469] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  345.570975][  T469] EXT4-fs (loop3): This should not happen!! Data will be lost
[  345.570975][  T469] 
[  345.957451][T15393] EXT4-fs error (device loop2): ext4_map_blocks:742: inode #19: block 426: comm syz-executor.2: lblock 298 mapped to illegal pblock 426 (length 1)
[  345.990494][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  346.038467][T15393] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  346.058599][T15393] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  346.073396][T15393] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  346.079190][T15397] EXT4-fs error (device loop0): ext4_map_blocks:742: inode #19: block 297: comm syz-executor.0: lblock 169 mapped to illegal pblock 297 (length 1)
[  346.087963][T15393] EXT4-fs error (device loop2): ext4_ext_truncate:4481: inode #19: comm syz-executor.2: mark_inode_dirty error
[  346.106279][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  346.116996][T15393] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  346.138505][T15393] EXT4-fs error (device loop2): ext4_truncate:4403: inode #19: comm syz-executor.2: mark_inode_dirty error
[  346.150839][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  346.150839][  T386] 
[  346.160952][T15397] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  346.177642][T15397] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  346.180817][T15416] EXT4-fs error (device loop4): ext4_read_block_bitmap_nowait:476: comm syz-executor.4: Invalid block bitmap block 0 in block_group 0
[  346.191976][T15397] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  346.219704][T15397] EXT4-fs error (device loop0): ext4_ext_truncate:4481: inode #19: comm syz-executor.0: mark_inode_dirty error
[  346.221089][  T469] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  346.233728][T15397] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  346.249271][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  346.261419][T15397] EXT4-fs error (device loop0): ext4_truncate:4403: inode #19: comm syz-executor.0: mark_inode_dirty error
[  346.283229][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  346.318745][  T469] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  346.331044][T15416] EXT4-fs error (device loop4): ext4_discard_preallocations:4605: comm syz-executor.4: Error -117 reading block bitmap for 0
[  346.334942][  T469] EXT4-fs (loop3): This should not happen!! Data will be lost
[  346.334942][  T469] 
[  346.354598][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  346.354598][  T433] 
[  346.376651][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  346.394767][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  346.418457][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  346.418457][  T386] 
[  346.446368][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  346.462715][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  346.477792][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  346.477792][  T469] 
[  346.594282][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  346.632385][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  346.712862][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  346.712862][  T469] 
[  346.738042][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  346.754120][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  346.769576][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  346.769576][  T469] 
[  346.871293][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  346.888646][  T433] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  346.917519][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  346.933050][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  346.938259][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  346.950142][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  346.950142][  T469] 
[  346.964322][ T1267] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  346.986962][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  346.986962][  T386] 
[  346.994205][  T433] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  347.020992][  T433] EXT4-fs (loop1): This should not happen!! Data will be lost
[  347.020992][  T433] 
[  347.034516][ T1267] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  347.053760][ T1267] EXT4-fs (loop3): This should not happen!! Data will be lost
[  347.053760][ T1267] 
[  347.339097][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  347.374981][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  347.392218][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  347.425084][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  347.425084][ T1267] 
[  347.436483][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  347.461594][  T386] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:3: lblock 0 mapped to illegal pblock 112 (length 1)
[  347.506876][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  347.506876][  T469] 
[  347.521056][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  347.540727][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  347.540727][  T386] 
[  347.591893][T15464] EXT4-fs error (device loop4): ext4_read_block_bitmap_nowait:476: comm syz-executor.4: Invalid block bitmap block 0 in block_group 0
[  347.612413][T15464] EXT4-fs error (device loop4): ext4_discard_preallocations:4605: comm syz-executor.4: Error -117 reading block bitmap for 0
[  347.636295][  T433] EXT4-fs error (device loop4): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:5: lblock 0 mapped to illegal pblock 112 (length 1)
[  347.659205][  T433] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  347.675936][  T433] EXT4-fs (loop4): This should not happen!! Data will be lost
[  347.675936][  T433] 
[  347.797834][  T433] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  347.837396][  T433] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  347.869587][  T433] EXT4-fs (loop3): This should not happen!! Data will be lost
[  347.869587][  T433] 
[  348.031666][  T433] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  348.051899][  T429] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  348.071105][  T386] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  348.096918][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  348.103124][  T433] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  348.113125][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  348.129191][  T386] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  348.143776][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  348.143776][ T1267] 
[  348.171488][  T433] EXT4-fs (loop5): This should not happen!! Data will be lost
[  348.171488][  T433] 
[  348.192025][  T386] EXT4-fs (loop2): This should not happen!! Data will be lost
[  348.192025][  T386] 
[  348.192231][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  348.225466][  T429] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  348.235813][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  348.247349][  T429] EXT4-fs (loop1): This should not happen!! Data will be lost
[  348.247349][  T429] 
[  348.268158][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  348.268158][ T1267] 
[  348.536232][T15512] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  348.615379][T15512] EXT4-fs error (device loop3): ext4_write_end:1369: inode #19: comm syz-executor.3: mark_inode_dirty error
2026/08/21 20:23:26 executed programs: 2769
[  348.654252][T15523] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  348.681435][T15523] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  348.724775][  T112] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  348.741868][ T1267] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  348.744939][  T112] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  348.782823][ T1267] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  348.796440][T15520] EXT4-fs error (device loop2): ext4_map_blocks:742: inode #19: block 299: comm syz-executor.2: lblock 171 mapped to illegal pblock 299 (length 1)
[  348.810651][ T1267] EXT4-fs (loop3): This should not happen!! Data will be lost
[  348.810651][ T1267] 
[  348.832204][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  348.839239][  T112] EXT4-fs (loop5): This should not happen!! Data will be lost
[  348.839239][  T112] 
[  348.851761][T15528] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm syz-executor.0: bad extent address lblock: 179, depth: 1 pblock 0
[  348.870713][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  348.891822][T15520] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  348.914007][T15520] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  348.919530][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  348.919530][  T429] 
[  348.931736][T15520] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  348.939968][T15528] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  348.950220][T15520] EXT4-fs error (device loop2): ext4_ext_truncate:4481: inode #19: comm syz-executor.2: mark_inode_dirty error
[  348.977705][T15528] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  348.983820][T15520] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  349.015087][T15520] EXT4-fs error (device loop2): ext4_truncate:4403: inode #19: comm syz-executor.2: mark_inode_dirty error
[  349.033900][  T429] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  349.036368][T15528] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  349.061461][T15528] EXT4-fs error (device loop0): ext4_ext_truncate:4481: inode #19: comm syz-executor.0: mark_inode_dirty error
[  349.068557][  T429] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  349.075590][  T112] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  349.090554][  T429] EXT4-fs (loop1): This should not happen!! Data will be lost
[  349.090554][  T429] 
[  349.108480][T15528] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  349.154450][  T112] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  349.165449][T15528] EXT4-fs error (device loop0): ext4_truncate:4403: inode #19: comm syz-executor.0: mark_inode_dirty error
[  349.171859][  T112] EXT4-fs (loop2): This should not happen!! Data will be lost
[  349.171859][  T112] 
[  349.229452][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  349.252544][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  349.268423][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  349.268423][  T112] 
[  349.323278][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  349.349016][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  349.370497][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  349.370497][  T112] 
[  349.430848][  T112] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  349.450079][  T112] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  349.463927][  T112] EXT4-fs (loop5): This should not happen!! Data will be lost
[  349.463927][  T112] 
[  349.571738][  T112] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  349.619212][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  349.646407][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  349.665235][  T112] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  349.687605][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  349.687630][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  349.714254][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  349.714254][ T1267] 
[  349.738708][  T386] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  349.740280][  T112] EXT4-fs (loop1): This should not happen!! Data will be lost
[  349.740280][  T112] 
[  349.771812][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  349.771812][  T469] 
[  349.783748][  T386] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  349.799070][  T386] EXT4-fs (loop0): This should not happen!! Data will be lost
[  349.799070][  T386] 
[  349.964389][  T386] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  349.980983][  T386] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  349.996398][  T386] EXT4-fs (loop5): This should not happen!! Data will be lost
[  349.996398][  T386] 
[  350.297025][  T429] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  350.315334][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  350.332537][T15591] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  350.344030][  T429] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  350.362312][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  350.368353][  T429] EXT4-fs (loop5): This should not happen!! Data will be lost
[  350.368353][  T429] 
[  350.377464][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  350.377464][  T469] 
[  350.387641][T15591] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  350.391485][  T112] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  350.409141][T15591] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  350.420813][  T112] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  350.429342][T15591] EXT4-fs error (device loop2): ext4_ext_truncate:4481: inode #19: comm syz-executor.2: mark_inode_dirty error
[  350.438206][  T429] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  350.449332][  T112] EXT4-fs (loop4): This should not happen!! Data will be lost
[  350.449332][  T112] 
[  350.467244][T15591] EXT4-fs error (device loop2) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  350.482122][  T429] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  350.488088][T15591] EXT4-fs error (device loop2): ext4_truncate:4403: inode #19: comm syz-executor.2: mark_inode_dirty error
[  350.506419][  T429] EXT4-fs (loop0): This should not happen!! Data will be lost
[  350.506419][  T429] 
[  350.694446][  T429] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  350.709667][  T429] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  350.723861][  T429] EXT4-fs (loop2): This should not happen!! Data will be lost
[  350.723861][  T429] 
[  350.958086][T15619] EXT4-fs error (device loop4): ext4_read_block_bitmap_nowait:476: comm syz-executor.4: Invalid block bitmap block 0 in block_group 0
[  350.973723][T15619] EXT4-fs error (device loop4): ext4_discard_preallocations:4605: comm syz-executor.4: Error -117 reading block bitmap for 0
[  351.047798][T15646] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  351.052376][T15619] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  351.067387][  T112] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  351.079817][T15646] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  351.093430][T15619] EXT4-fs error (device loop4): ext4_ext_truncate:4481: inode #19: comm syz-executor.4: mark_inode_dirty error
[  351.119419][  T429] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  351.131706][T15627] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  351.134515][  T112] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  351.161090][  T429] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  351.161267][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  351.174743][ T1267] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  351.189714][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  351.207255][  T429] EXT4-fs (loop3): This should not happen!! Data will be lost
[  351.207255][  T429] 
[  351.217169][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  351.217169][  T386] 
[  351.218259][  T112] EXT4-fs (loop5): This should not happen!! Data will be lost
[  351.218259][  T112] 
[  351.230449][T15627] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  351.237572][T15619] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  351.256662][T15619] EXT4-fs error (device loop4): ext4_truncate:4403: inode #19: comm syz-executor.4: mark_inode_dirty error
[  351.262521][ T1267] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  351.296951][ T1267] EXT4-fs (loop2): This should not happen!! Data will be lost
[  351.296951][ T1267] 
[  351.297257][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  351.321965][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  351.338916][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  351.338916][  T112] 
[  351.374187][  T112] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  351.388977][  T112] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  351.401830][  T112] EXT4-fs (loop4): This should not happen!! Data will be lost
[  351.401830][  T112] 
[  351.807360][T15655] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  351.821283][  T386] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  351.824585][T15655] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  351.849067][T15655] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  351.859198][T15655] EXT4-fs error (device loop1): ext4_ext_truncate:4481: inode #19: comm syz-executor.1: mark_inode_dirty error
[  351.871466][T15655] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  351.881669][T15649] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  351.881938][T15655] EXT4-fs error (device loop1): ext4_truncate:4403: inode #19: comm syz-executor.1: mark_inode_dirty error
[  351.913323][  T386] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  351.933152][T15649] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  351.957676][  T386] EXT4-fs (loop2): This should not happen!! Data will be lost
[  351.957676][  T386] 
[  351.968418][ T1267] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  351.983395][  T386] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  351.983484][  T112] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  351.997876][ T1267] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  352.013279][  T112] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  352.025873][  T386] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  352.053616][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  352.053869][  T386] EXT4-fs (loop5): This should not happen!! Data will be lost
[  352.053869][  T386] 
[  352.081595][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  352.098220][  T112] EXT4-fs (loop1): This should not happen!! Data will be lost
[  352.098220][  T112] 
[  352.102624][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  352.109134][ T1267] EXT4-fs (loop3): This should not happen!! Data will be lost
[  352.109134][ T1267] 
[  352.123343][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  352.132903][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  352.132903][  T469] 
[  352.145703][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  352.145703][  T429] 
[  352.552875][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  352.572680][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  352.643327][  T429] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  352.644978][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  352.644978][  T469] 
[  352.670693][T15692] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 225: comm syz-executor.1: lblock 97 mapped to illegal pblock 225 (length 1)
[  352.691303][T15686] EXT4-fs error (device loop0): ext4_map_blocks:742: inode #19: block 221: comm syz-executor.0: lblock 93 mapped to illegal pblock 221 (length 1)
[  352.698496][  T429] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  352.709333][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  352.721930][  T429] EXT4-fs (loop3): This should not happen!! Data will be lost
[  352.721930][  T429] 
[  352.749301][  T469] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  352.755373][T15686] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  352.765187][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  352.794278][T15692] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  352.798941][T15686] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  352.810517][T15692] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  352.824054][  T469] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  352.837095][T15692] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  352.850121][T15686] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  352.859340][T15692] EXT4-fs error (device loop1): ext4_ext_truncate:4481: inode #19: comm syz-executor.1: mark_inode_dirty error
[  352.869831][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  352.869831][  T433] 
[  352.882798][T15692] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  352.893319][  T469] EXT4-fs (loop4): This should not happen!! Data will be lost
[  352.893319][  T469] 
[  352.902766][T15692] EXT4-fs error (device loop1): ext4_truncate:4403: inode #19: comm syz-executor.1: mark_inode_dirty error
[  352.913297][T15686] EXT4-fs error (device loop0): ext4_ext_truncate:4481: inode #19: comm syz-executor.0: mark_inode_dirty error
[  352.940887][T15686] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  352.956536][T15686] EXT4-fs error (device loop0): ext4_truncate:4403: inode #19: comm syz-executor.0: mark_inode_dirty error
[  352.973804][  T433] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:5: lblock 0 mapped to illegal pblock 112 (length 1)
[  352.988934][  T433] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  353.002099][  T433] EXT4-fs (loop1): This should not happen!! Data will be lost
[  353.002099][  T433] 
[  353.025287][  T433] EXT4-fs error (device loop0): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:5: lblock 0 mapped to illegal pblock 112 (length 1)
[  353.040972][  T433] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  353.056489][  T433] EXT4-fs (loop0): This should not happen!! Data will be lost
[  353.056489][  T433] 
[  353.231572][  T433] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  353.292129][  T433] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  353.368883][T15718] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  353.385073][  T112] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  353.390892][  T433] EXT4-fs (loop3): This should not happen!! Data will be lost
[  353.390892][  T433] 
[  353.423450][  T429] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  353.426430][T15718] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  353.452924][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  353.463259][  T429] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  353.470211][  T112] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  353.492925][  T112] EXT4-fs (loop1): This should not happen!! Data will be lost
[  353.492925][  T112] 
[  353.493907][ T1267] EXT4-fs error (device loop5): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:7: lblock 0 mapped to illegal pblock 112 (length 1)
[  353.505998][  T429] EXT4-fs (loop0): This should not happen!! Data will be lost
[  353.505998][  T429] 
[  353.534874][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  353.547407][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  353.548322][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  353.548322][  T433] 
[  353.568724][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  353.568724][ T1267] 
[  353.599340][  T469] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  353.626145][  T469] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  353.639502][  T469] EXT4-fs (loop4): This should not happen!! Data will be lost
[  353.639502][  T469] 
[  353.946926][T15746] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  353.991788][T15749] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  354.023327][T15746] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
2026/08/21 20:23:31 executed programs: 2812
[  354.071857][  T469] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  354.098314][  T469] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  354.108547][T15749] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  354.130581][  T469] EXT4-fs (loop4): This should not happen!! Data will be lost
[  354.130581][  T469] 
[  354.131421][  T433] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  354.137841][ T1267] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  354.174064][ T1267] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  354.174619][  T112] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  354.188145][  T433] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  354.212410][ T1267] EXT4-fs (loop1): This should not happen!! Data will be lost
[  354.212410][ T1267] 
[  354.220056][  T433] EXT4-fs (loop3): This should not happen!! Data will be lost
[  354.220056][  T433] 
[  354.229731][  T112] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  354.245702][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  354.258080][  T112] EXT4-fs (loop5): This should not happen!! Data will be lost
[  354.258080][  T112] 
[  354.288839][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  354.306140][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  354.306140][ T1267] 
[  354.324761][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  354.346093][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  354.359407][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  354.359407][  T433] 
[  354.882077][  T433] EXT4-fs error (device loop3): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:5: lblock 0 mapped to illegal pblock 112 (length 1)
[  354.907880][  T112] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  354.952934][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  354.970083][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  354.988299][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  354.988299][ T1267] 
[  354.996092][  T112] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  355.013883][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  355.018447][  T112] EXT4-fs (loop4): This should not happen!! Data will be lost
[  355.018447][  T112] 
[  355.031221][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  355.040549][  T433] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  355.055115][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  355.055115][  T469] 
[  355.083232][T15788] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  355.108334][  T433] EXT4-fs (loop3): This should not happen!! Data will be lost
[  355.108334][  T433] 
[  355.126273][  T429] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  355.154734][T15788] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  355.171639][  T429] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  355.186715][  T429] EXT4-fs (loop1): This should not happen!! Data will be lost
[  355.186715][  T429] 
[  355.187396][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  355.198677][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  355.235899][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  355.235899][ T1267] 
[  355.410991][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  355.433300][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  355.452742][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  355.452742][ T1267] 
[  355.633449][ T1267] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  355.659139][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  355.674361][T15823] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm syz-executor.3: bad extent address lblock: 157, depth: 1 pblock 0
[  355.686953][T15831] EXT4-fs error (device loop4): ext4_map_blocks:742: inode #19: block 236: comm syz-executor.4: lblock 108 mapped to illegal pblock 236 (length 1)
[  355.708867][ T1267] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  355.738985][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  355.751996][T15823] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  355.774160][T15831] EXT4-fs error (device loop4): ext4_read_block_bitmap_nowait:476: comm syz-executor.4: Invalid block bitmap block 0 in block_group 0
[  355.794441][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  355.794441][  T469] 
[  355.814737][T15831] EXT4-fs error (device loop4): ext4_discard_preallocations:4605: comm syz-executor.4: Error -117 reading block bitmap for 0
[  355.829294][T15823] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  355.844414][ T1267] EXT4-fs (loop1): This should not happen!! Data will be lost
[  355.844414][ T1267] 
[  355.873584][T15846] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  355.893240][T15831] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  355.893249][T15823] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  355.896046][T15823] EXT4-fs error (device loop3): ext4_ext_truncate:4481: inode #19: comm syz-executor.3: mark_inode_dirty error
[  355.908621][T15846] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  355.924104][T15823] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  355.933058][T15831] EXT4-fs error (device loop4): ext4_ext_truncate:4481: inode #19: comm syz-executor.4: mark_inode_dirty error
[  355.950926][T15823] EXT4-fs error (device loop3): ext4_truncate:4403: inode #19: comm syz-executor.3: mark_inode_dirty error
[  355.979954][T15831] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  356.001015][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  356.005183][T15831] EXT4-fs error (device loop4): ext4_truncate:4403: inode #19: comm syz-executor.4: mark_inode_dirty error
[  356.033825][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  356.052488][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  356.052488][ T1267] 
[  356.101176][  T429] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  356.126363][  T429] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  356.144205][  T429] EXT4-fs (loop3): This should not happen!! Data will be lost
[  356.144205][  T429] 
[  356.165340][  T429] EXT4-fs error (device loop4): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:4: lblock 0 mapped to illegal pblock 112 (length 1)
[  356.182782][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  356.197732][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  356.197732][  T429] 
[  356.376602][T15861] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  356.394958][T15861] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  356.450878][  T433] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  356.491813][  T433] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  356.511243][  T433] EXT4-fs (loop1): This should not happen!! Data will be lost
[  356.511243][  T433] 
[  356.598852][  T433] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  356.617155][  T112] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  356.617326][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  356.660561][  T112] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  356.660656][  T433] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  356.675910][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  356.708119][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  356.708119][ T1267] 
[  356.709253][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  356.777560][  T112] EXT4-fs (loop2): This should not happen!! Data will be lost
[  356.777560][  T112] 
[  356.801771][  T433] EXT4-fs (loop3): This should not happen!! Data will be lost
[  356.801771][  T433] 
[  356.829781][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  356.863710][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  356.871367][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  356.871367][  T469] 
[  356.895209][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  356.900962][  T112] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  356.910784][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  356.910784][  T386] 
[  356.944486][  T112] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  356.958540][  T112] EXT4-fs (loop5): This should not happen!! Data will be lost
[  356.958540][  T112] 
[  357.351018][  T112] EXT4-fs error (device loop5): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:2: lblock 0 mapped to illegal pblock 112 (length 1)
[  357.369008][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  357.388869][  T112] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  357.389326][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  357.425720][  T386] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  357.437838][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  357.437838][  T469] 
[  357.456340][  T112] EXT4-fs (loop5): This should not happen!! Data will be lost
[  357.456340][  T112] 
[  357.475704][  T429] EXT4-fs error (device loop4): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:4: lblock 0 mapped to illegal pblock 112 (length 1)
[  357.497335][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  357.500690][  T386] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  357.520399][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  357.520399][  T429] 
[  357.546655][  T386] EXT4-fs (loop2): This should not happen!! Data will be lost
[  357.546655][  T386] 
[  357.564875][  T469] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  357.586147][  T469] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  357.590074][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  357.603366][  T469] EXT4-fs (loop3): This should not happen!! Data will be lost
[  357.603366][  T469] 
[  357.621207][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  357.643980][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  357.643980][  T112] 
[  358.029102][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  358.101792][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  358.120854][T15930] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  358.154032][T15930] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  358.158114][T15932] EXT4-fs error (device loop3): ext4_map_blocks:742: inode #19: block 307: comm syz-executor.3: lblock 179 mapped to illegal pblock 307 (length 1)
[  358.171009][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  358.199889][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  358.200284][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  358.213896][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  358.213896][  T112] 
[  358.231041][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  358.231041][  T386] 
[  358.254030][  T112] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  358.273051][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  358.278801][T15932] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  358.305069][  T112] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  358.320315][T15932] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  358.321647][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  358.350823][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  358.350823][  T469] 
[  358.351473][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  358.361516][  T112] EXT4-fs (loop2): This should not happen!! Data will be lost
[  358.361516][  T112] 
[  358.374079][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  358.374079][  T386] 
[  358.384228][T15932] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  358.430073][T15932] EXT4-fs error (device loop3): ext4_ext_truncate:4481: inode #19: comm syz-executor.3: mark_inode_dirty error
[  358.443831][T15932] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  358.453945][T15932] EXT4-fs error (device loop3): ext4_truncate:4403: inode #19: comm syz-executor.3: mark_inode_dirty error
[  358.641023][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  358.658142][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  358.672920][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  358.672920][  T112] 
[  358.821861][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  358.838392][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  358.851381][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  358.851381][  T112] 
[  358.937679][  T112] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  358.953194][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  359.027628][  T112] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.035493][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.058602][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  359.063465][  T112] EXT4-fs (loop1): This should not happen!! Data will be lost
[  359.063465][  T112] 
[  359.083778][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.098896][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  359.098896][  T386] 
[  359.103514][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  359.103514][  T469] 
2026/08/21 20:23:36 executed programs: 2854
[  359.126890][T15995] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  359.152795][T15995] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  359.170136][  T386] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  359.186323][  T386] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.215475][  T386] EXT4-fs (loop2): This should not happen!! Data will be lost
[  359.215475][  T386] 
[  359.239254][  T386] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  359.255360][  T386] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.270379][  T386] EXT4-fs (loop0): This should not happen!! Data will be lost
[  359.270379][  T386] 
[  359.319918][  T386] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  359.336266][  T386] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.350668][  T386] EXT4-fs (loop3): This should not happen!! Data will be lost
[  359.350668][  T386] 
[  359.503902][T15997] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  359.533384][T15997] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  359.560190][  T433] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  359.599000][  T433] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.613749][  T433] EXT4-fs (loop1): This should not happen!! Data will be lost
[  359.613749][  T433] 
[  359.627989][  T386] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  359.668174][  T386] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.704045][  T386] EXT4-fs (loop5): This should not happen!! Data will be lost
[  359.704045][  T386] 
[  359.761270][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  359.786133][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.804119][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  359.804119][  T469] 
[  359.855145][  T112] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  359.870014][  T386] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  359.885934][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  359.887632][  T112] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.901045][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.922159][  T112] EXT4-fs (loop4): This should not happen!! Data will be lost
[  359.922159][  T112] 
[  359.926604][  T386] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  359.941411][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  359.941411][  T469] 
[  359.961046][  T386] EXT4-fs (loop3): This should not happen!! Data will be lost
[  359.961046][  T386] 
[  360.167795][T16034] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm syz-executor.1: bad extent address lblock: 293, depth: 1 pblock 0
[  360.202956][T16033] EXT4-fs error (device loop5): ext4_map_blocks:742: inode #19: block 440: comm syz-executor.5: lblock 312 mapped to illegal pblock 440 (length 1)
[  360.219987][T16034] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  360.260272][T16033] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  360.279198][T16038] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  360.297463][T16038] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  360.310019][T16034] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  360.332613][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  360.337841][T16034] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  360.348917][T16033] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  360.369843][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  360.390732][T16034] EXT4-fs error (device loop1): ext4_ext_truncate:4481: inode #19: comm syz-executor.1: mark_inode_dirty error
[  360.392798][T16033] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  360.404581][T16034] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  360.423533][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  360.425815][T16034] EXT4-fs error (device loop1): ext4_truncate:4403: inode #19: comm syz-executor.1: mark_inode_dirty error
[  360.457589][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  360.470809][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  360.470809][  T469] 
[  360.481041][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  360.486247][T16033] EXT4-fs error (device loop5): ext4_ext_truncate:4481: inode #19: comm syz-executor.5: mark_inode_dirty error
[  360.509492][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  360.509492][  T386] 
[  360.511864][  T433] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  360.522123][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  360.538178][  T433] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  360.567440][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  360.583750][  T433] EXT4-fs (loop1): This should not happen!! Data will be lost
[  360.583750][  T433] 
[  360.588776][T16033] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  360.596163][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  360.603541][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  360.603541][  T112] 
[  360.619729][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  360.619729][  T469] 
[  360.630160][T16033] EXT4-fs error (device loop5): ext4_truncate:4403: inode #19: comm syz-executor.5: mark_inode_dirty error
[  360.714747][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  360.730735][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  360.747668][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  360.747668][  T469] 
[  361.026510][  T112] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  361.069055][  T112] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  361.114080][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  361.137722][  T112] EXT4-fs (loop4): This should not happen!! Data will be lost
[  361.137722][  T112] 
[  361.141422][  T469] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  361.149228][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  361.165760][T16097] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  361.178967][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  361.178967][  T386] 
[  361.221902][T16097] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  361.232421][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  361.248664][  T469] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  361.255087][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  361.270554][  T386] EXT4-fs error (device loop2): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:3: lblock 0 mapped to illegal pblock 112 (length 1)
[  361.283753][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  361.283753][  T112] 
[  361.306340][  T469] EXT4-fs (loop3): This should not happen!! Data will be lost
[  361.306340][  T469] 
[  361.314208][  T386] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  361.337069][  T386] EXT4-fs (loop2): This should not happen!! Data will be lost
[  361.337069][  T386] 
[  361.355133][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  361.370391][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  361.383616][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  361.383616][  T469] 
[  361.719113][  T386] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  361.778401][  T386] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  361.792053][  T386] EXT4-fs (loop0): This should not happen!! Data will be lost
[  361.792053][  T386] 
[  361.805636][T16099] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  361.807270][T16109] EXT4-fs error (device loop5): ext4_map_blocks:742: inode #19: block 316: comm syz-executor.5: lblock 188 mapped to illegal pblock 316 (length 1)
[  361.851477][  T112] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  361.868809][  T112] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  361.887055][  T112] EXT4-fs (loop4): This should not happen!! Data will be lost
[  361.887055][  T112] 
[  361.894981][T16109] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  361.904430][T16099] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  361.926925][T16109] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  361.941262][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  361.957736][T16109] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  361.957949][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  361.983503][T16109] EXT4-fs error (device loop5): ext4_ext_truncate:4481: inode #19: comm syz-executor.5: mark_inode_dirty error
[  361.985424][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  361.996604][T16109] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  362.015902][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  362.032135][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  362.032135][  T469] 
[  362.034537][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  362.034537][  T112] 
[  362.047114][ T1267] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  362.080746][T16109] EXT4-fs error (device loop5): ext4_truncate:4403: inode #19: comm syz-executor.5: mark_inode_dirty error
[  362.095297][ T1267] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  362.109100][ T1267] EXT4-fs (loop2): This should not happen!! Data will be lost
[  362.109100][ T1267] 
[  362.167486][  T112] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  362.182396][  T112] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  362.195858][  T112] EXT4-fs (loop5): This should not happen!! Data will be lost
[  362.195858][  T112] 
[  362.348340][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  362.364041][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  362.364440][  T112] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  362.399980][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  362.399980][ T1267] 
[  362.470844][  T112] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  362.487900][  T112] EXT4-fs (loop4): This should not happen!! Data will be lost
[  362.487900][  T112] 
[  362.503494][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  362.521325][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  362.534698][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  362.534698][  T386] 
[  362.623622][T16152] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  362.641081][  T386] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  362.657682][T16152] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  362.682380][T16145] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  362.704146][  T386] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  362.718873][  T386] EXT4-fs (loop2): This should not happen!! Data will be lost
[  362.718873][  T386] 
[  362.719786][T16145] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  362.752872][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  362.782236][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  362.795932][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  362.795932][ T1267] 
[  362.840105][  T386] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  362.855968][ T1267] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  362.875114][  T386] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  362.894780][  T386] EXT4-fs (loop0): This should not happen!! Data will be lost
[  362.894780][  T386] 
[  362.907680][ T1267] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  362.928203][ T1267] EXT4-fs (loop3): This should not happen!! Data will be lost
[  362.928203][ T1267] 
[  362.928245][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  362.961982][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  362.975231][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  362.975231][  T469] 
[  363.008339][  T433] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  363.029497][  T433] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  363.044294][  T433] EXT4-fs (loop4): This should not happen!! Data will be lost
[  363.044294][  T433] 
[  363.242515][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  363.263946][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  363.301179][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  363.301493][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  363.316817][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  363.316817][  T433] 
[  363.354194][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  363.354194][  T469] 
[  363.455439][T16191] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  363.500827][T16191] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  363.515570][  T433] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  363.532874][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  363.548649][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  363.560784][  T433] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  363.563864][  T386] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  363.576493][  T433] EXT4-fs (loop4): This should not happen!! Data will be lost
[  363.576493][  T433] 
[  363.582687][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  363.596925][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  363.602962][  T386] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  363.614209][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  363.614209][  T469] 
[  363.638086][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  363.638086][ T1267] 
[  363.658015][  T386] EXT4-fs (loop3): This should not happen!! Data will be lost
[  363.658015][  T386] 
[  363.837385][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  363.859727][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  363.878164][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  363.878164][  T469] 
[  363.943006][T16230] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  363.958291][T16230] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  364.041972][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  364.058659][ T1267] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  364.102585][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  364.108804][ T1267] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  364.130010][ T1267] EXT4-fs (loop3): This should not happen!! Data will be lost
[  364.130010][ T1267] 
[  364.138592][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  364.151445][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  364.167162][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  364.167162][  T386] 
2026/08/21 20:23:41 executed programs: 2900
[  364.194999][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  364.194999][  T469] 
[  364.227355][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  364.242698][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  364.255660][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  364.255660][  T386] 
[  364.371461][  T386] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  364.386290][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  364.401161][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  364.414590][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  364.414590][  T469] 
[  364.442898][  T386] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  364.456624][  T386] EXT4-fs (loop0): This should not happen!! Data will be lost
[  364.456624][  T386] 
[  364.623251][  T112] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  364.692848][  T112] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  364.757003][  T469] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  364.775119][  T112] EXT4-fs (loop2): This should not happen!! Data will be lost
[  364.775119][  T112] 
[  364.795027][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  364.811069][  T469] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  364.824508][  T469] EXT4-fs (loop4): This should not happen!! Data will be lost
[  364.824508][  T469] 
[  364.862100][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  364.874832][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  364.874832][  T386] 
[  364.899047][  T386] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  364.902362][T16278] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  364.913916][  T386] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  364.941634][  T386] EXT4-fs (loop5): This should not happen!! Data will be lost
[  364.941634][  T386] 
[  364.953321][T16278] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  364.971186][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  364.986474][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  365.001135][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  365.001146][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  365.001160][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  365.001160][  T469] 
[  365.014414][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  365.014414][  T112] 
[  365.262669][T16286] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  365.318501][T16286] EXT4-fs error (device loop1): ext4_write_end:1369: inode #19: comm syz-executor.1: mark_inode_dirty error
[  365.334059][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  365.349800][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  365.365349][T16286] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  365.383057][ T1267] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  365.397469][ T1267] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  365.410257][ T1267] EXT4-fs (loop2): This should not happen!! Data will be lost
[  365.410257][ T1267] 
[  365.420733][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  365.426532][T16286] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  365.433996][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  365.465299][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  365.465299][  T386] 
[  365.476165][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  365.499395][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  365.503724][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  365.503724][  T112] 
[  365.522198][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  365.522198][  T469] 
[  365.538517][  T386] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  365.561221][  T386] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  365.578316][  T386] EXT4-fs (loop5): This should not happen!! Data will be lost
[  365.578316][  T386] 
[  365.581020][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  365.605084][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  365.618128][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  365.618128][  T112] 
[  365.801135][  T112] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  365.825213][  T112] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  365.886308][  T112] EXT4-fs (loop2): This should not happen!! Data will be lost
[  365.886308][  T112] 
[  365.968386][  T112] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  366.002772][  T112] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  366.016104][  T112] EXT4-fs (loop3): This should not happen!! Data will be lost
[  366.016104][  T112] 
[  366.055328][  T112] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:2: bad extent address lblock: 0, depth: 1 pblock 0
[  366.056795][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  366.072056][  T112] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  366.100559][  T112] EXT4-fs (loop0): This should not happen!! Data will be lost
[  366.100559][  T112] 
[  366.111966][  T386] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  366.127221][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  366.141473][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  366.143791][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  366.155241][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  366.155241][ T1267] 
[  366.191409][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  366.191409][  T469] 
[  366.205751][  T386] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  366.218463][  T386] EXT4-fs (loop5): This should not happen!! Data will be lost
[  366.218463][  T386] 
[  366.310559][T16345] EXT4-fs mount: 185 callbacks suppressed
[  366.310579][T16345] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  366.393721][T16348] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  366.439470][T16350] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  366.456745][T16359] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  366.486752][T16361] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  366.559201][T16345] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  366.592545][ T1267] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  366.620054][  T386] EXT4-fs error (device loop0): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:3: lblock 0 mapped to illegal pblock 112 (length 1)
[  366.636282][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  366.651100][T16345] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  366.654241][ T1267] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  366.671290][  T386] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  366.692053][  T386] EXT4-fs (loop0): This should not happen!! Data will be lost
[  366.692053][  T386] 
[  366.694057][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  366.716363][ T1267] EXT4-fs (loop3): This should not happen!! Data will be lost
[  366.716363][ T1267] 
[  366.717476][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  366.731805][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  366.731805][  T469] 
[  366.741649][ T1267] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  366.771096][ T1267] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  366.774513][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  366.784918][ T1267] EXT4-fs (loop2): This should not happen!! Data will be lost
[  366.784918][ T1267] 
[  366.799382][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  366.799382][  T386] 
[  366.809462][T16377] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  367.022805][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  367.038668][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  367.056129][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  367.056129][ T1267] 
[  367.083874][T16382] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  367.100707][T16384] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  367.111478][T16391] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  367.112966][T16387] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  367.192372][T16388] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  367.287161][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  367.312904][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  367.319991][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  367.330987][  T386] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  367.341155][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  367.341155][  T469] 
[  367.366302][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  367.377425][  T386] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  367.382960][T16382] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  367.414114][T16382] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  367.422989][  T386] EXT4-fs (loop3): This should not happen!! Data will be lost
[  367.422989][  T386] 
[  367.432912][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  367.432912][ T1267] 
[  367.458442][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  367.489079][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  367.497066][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  367.506854][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  367.537844][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  367.537844][  T433] 
[  367.538804][T16408] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  367.559611][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  367.559611][ T1267] 
[  367.588017][T16412] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  367.816122][T16412] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm syz-executor.1: bad extent address lblock: 236, depth: 1 pblock 0
[  367.832136][T16412] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  367.856961][T16425] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  367.865968][T16412] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  367.867241][T16422] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  367.881407][T16412] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  367.903375][T16412] EXT4-fs error (device loop1): ext4_ext_truncate:4481: inode #19: comm syz-executor.1: mark_inode_dirty error
[  367.905152][T16419] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  367.916197][T16412] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  367.935736][T16412] EXT4-fs error (device loop1): ext4_truncate:4403: inode #19: comm syz-executor.1: mark_inode_dirty error
[  367.962514][T16424] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  368.008753][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  368.071291][  T386] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  368.101553][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  368.115545][    T7] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  368.133997][T16439] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  368.163481][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  368.163481][ T1267] 
[  368.174891][  T386] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  368.180303][    T7] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  368.189198][  T386] EXT4-fs (loop3): This should not happen!! Data will be lost
[  368.189198][  T386] 
[  368.203761][    T7] EXT4-fs (loop1): This should not happen!! Data will be lost
[  368.203761][    T7] 
[  368.220919][T16439] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  368.242870][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  368.264191][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  368.278243][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  368.278243][  T433] 
[  368.314401][  T433] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  368.330143][  T433] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  368.342727][  T433] EXT4-fs (loop0): This should not happen!! Data will be lost
[  368.342727][  T433] 
[  368.503744][T16441] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  368.562413][T16448] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  368.577721][T16449] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  368.588295][T16453] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  368.661207][T16455] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  368.699459][T16451] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  368.747515][  T433] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  368.768735][    T7] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  368.790912][  T433] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  368.821478][  T433] EXT4-fs (loop5): This should not happen!! Data will be lost
[  368.821478][  T433] 
[  368.821503][    T7] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  368.831536][ T1267] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  368.853318][    T7] EXT4-fs (loop4): This should not happen!! Data will be lost
[  368.853318][    T7] 
[  368.870905][  T386] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  368.883955][ T1267] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  368.889750][T16455] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  368.898925][ T1267] EXT4-fs (loop2): This should not happen!! Data will be lost
[  368.898925][ T1267] 
[  368.920687][  T386] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  368.932104][T16455] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  368.939363][  T386] EXT4-fs (loop1): This should not happen!! Data will be lost
[  368.939363][  T386] 
[  368.976675][  T429] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  368.991155][  T429] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  368.996672][    T7] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  369.004281][  T429] EXT4-fs (loop3): This should not happen!! Data will be lost
[  369.004281][  T429] 
[  369.034922][    T7] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  369.048679][    T7] EXT4-fs (loop0): This should not happen!! Data will be lost
[  369.048679][    T7] 
[  369.403422][T16474] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  369.433179][T16485] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
2026/08/21 20:23:46 executed programs: 2945
[  369.478060][T16483] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  369.496143][T16481] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  369.506897][T16479] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  369.521147][T16480] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  369.531010][    T7] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  369.555940][    T7] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  369.576801][    T7] EXT4-fs (loop1): This should not happen!! Data will be lost
[  369.576801][    T7] 
[  369.647903][  T386] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  369.666456][  T386] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  369.680727][  T386] EXT4-fs (loop2): This should not happen!! Data will be lost
[  369.680727][  T386] 
[  369.728385][  T429] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  369.741093][  T386] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  369.743834][    T7] EXT4-fs error (device loop4): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:0: lblock 0 mapped to illegal pblock 112 (length 1)
[  369.757447][  T386] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  369.775540][  T429] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  369.786583][  T386] EXT4-fs (loop5): This should not happen!! Data will be lost
[  369.786583][  T386] 
[  369.800355][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  369.825134][    T7] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  369.828853][  T429] EXT4-fs (loop3): This should not happen!! Data will be lost
[  369.828853][  T429] 
[  369.865591][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  369.869992][    T7] EXT4-fs (loop4): This should not happen!! Data will be lost
[  369.869992][    T7] 
[  369.878647][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  369.878647][ T1267] 
[  369.923692][T16506] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  370.067540][T16511] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  370.109970][ T1267] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  370.138501][T16513] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  370.176703][ T1267] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  370.201118][  T429] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  370.210432][ T1267] EXT4-fs (loop1): This should not happen!! Data will be lost
[  370.210432][ T1267] 
[  370.229027][  T429] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  370.242236][T16518] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  370.247068][T16524] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  370.257571][T16529] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  370.260952][  T429] EXT4-fs (loop5): This should not happen!! Data will be lost
[  370.260952][  T429] 
[  370.344740][T16519] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  370.346385][T16529] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  370.376871][ T1267] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  370.391795][ T1267] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  370.405516][ T1267] EXT4-fs (loop2): This should not happen!! Data will be lost
[  370.405516][ T1267] 
[  370.442944][  T429] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  370.458758][    T7] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  370.488842][    T7] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  370.492914][  T429] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  370.524547][    T7] EXT4-fs (loop4): This should not happen!! Data will be lost
[  370.524547][    T7] 
[  370.537014][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  370.543926][  T429] EXT4-fs (loop3): This should not happen!! Data will be lost
[  370.543926][  T429] 
[  370.574220][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  370.595595][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  370.595595][ T1267] 
[  370.613718][T16539] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  370.624240][T16537] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  370.808668][ T1267] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  370.824016][T16543] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  370.833359][T16537] EXT4-fs error (device loop5): ext4_map_blocks:742: inode #19: block 414: comm syz-executor.5: lblock 286 mapped to illegal pblock 414 (length 1)
[  370.852796][ T1267] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  370.868238][T16537] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  370.879650][ T1267] EXT4-fs (loop1): This should not happen!! Data will be lost
[  370.879650][ T1267] 
[  370.882911][T16537] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  370.907309][T16553] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  370.929361][T16537] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  370.930192][T16554] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  370.939671][T16537] EXT4-fs error (device loop5): ext4_ext_truncate:4481: inode #19: comm syz-executor.5: mark_inode_dirty error
[  370.950155][T16550] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  370.960886][T16537] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  370.979723][T16537] EXT4-fs error (device loop5): ext4_truncate:4403: inode #19: comm syz-executor.5: mark_inode_dirty error
[  371.003726][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  371.038653][  T429] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  371.061173][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  371.081160][  T429] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  371.088360][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  371.088360][ T1267] 
[  371.120708][  T429] EXT4-fs (loop2): This should not happen!! Data will be lost
[  371.120708][  T429] 
[  371.136339][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  371.166466][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  371.179876][  T386] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  371.180418][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  371.180418][  T469] 
[  371.204948][  T386] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  371.212194][T16570] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  371.218701][  T386] EXT4-fs (loop3): This should not happen!! Data will be lost
[  371.218701][  T386] 
[  371.242565][  T386] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  371.257047][  T386] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  371.269798][  T386] EXT4-fs (loop4): This should not happen!! Data will be lost
[  371.269798][  T386] 
[  371.474605][T16578] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  371.484318][T16577] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  371.526415][T16580] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  371.563854][T16583] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  371.582509][T16586] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  371.638841][    T7] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  371.679749][T16583] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  371.680253][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  371.705878][T16583] EXT4-fs error (device loop3): ext4_write_end:1369: inode #19: comm syz-executor.3: mark_inode_dirty error
[  371.718549][    T7] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  371.727362][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  371.764753][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  371.764753][  T469] 
[  371.771923][    T7] EXT4-fs (loop0): This should not happen!! Data will be lost
[  371.771923][    T7] 
[  371.778577][T16583] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  371.816215][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  371.830908][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  371.836251][    T7] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  371.844110][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  371.844110][  T469] 
[  371.858609][T16583] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  371.872816][    T7] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  371.894691][  T386] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  371.894699][    T7] EXT4-fs (loop4): This should not happen!! Data will be lost
[  371.894699][    T7] 
[  371.928098][  T386] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  371.941258][  T386] EXT4-fs (loop3): This should not happen!! Data will be lost
[  371.941258][  T386] 
[  372.245016][T16610] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  372.268023][T16606] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  372.277757][T16604] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  372.292442][T16614] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  372.298897][T16608] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  372.360649][    T7] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  372.375226][  T386] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  372.375821][    T7] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  372.393790][T16612] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  372.402055][    T7] EXT4-fs (loop3): This should not happen!! Data will be lost
[  372.402055][    T7] 
[  372.450589][T16608] EXT4-fs error (device loop5): ext4_map_blocks:742: inode #19: block 510: comm syz-executor.5: lblock 366 mapped to illegal pblock 510 (length 1)
[  372.476017][  T386] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  372.489700][T16608] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  372.491695][  T386] EXT4-fs (loop0): This should not happen!! Data will be lost
[  372.491695][  T386] 
[  372.502657][T16608] EXT4-fs error (device loop5): ext4_ext_truncate:4481: inode #19: comm syz-executor.5: mark_inode_dirty error
[  372.539953][    T7] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  372.555429][  T429] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  372.589646][T16608] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  372.601834][T16608] EXT4-fs error (device loop5): ext4_truncate:4403: inode #19: comm syz-executor.5: mark_inode_dirty error
[  372.602108][  T469] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  372.617786][    T7] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  372.639623][  T469] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  372.641670][    T7] EXT4-fs (loop1): This should not happen!! Data will be lost
[  372.641670][    T7] 
[  372.654854][  T429] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  372.671258][  T469] EXT4-fs (loop4): This should not happen!! Data will be lost
[  372.671258][  T469] 
[  372.707040][    T7] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  372.707261][  T429] EXT4-fs (loop2): This should not happen!! Data will be lost
[  372.707261][  T429] 
[  372.748914][    T7] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  372.762413][    T7] EXT4-fs (loop5): This should not happen!! Data will be lost
[  372.762413][    T7] 
[  372.768095][T16636] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  372.792494][T16639] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  372.941855][T16641] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  373.005132][    T7] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  373.031575][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  373.049754][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  373.063425][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  373.063425][  T469] 
[  373.065079][    T7] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  373.078087][T16652] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  373.088891][    T7] EXT4-fs (loop3): This should not happen!! Data will be lost
[  373.088891][    T7] 
[  373.100945][T16655] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  373.117221][  T429] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  373.117642][T16651] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue
[  373.176531][  T429] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  373.191118][  T429] EXT4-fs (loop0): This should not happen!! Data will be lost
[  373.191118][  T429] 
[  373.231234][  T429] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  373.253520][  T429] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  373.267672][  T429] EXT4-fs (loop2): This should not happen!! Data will be lost
[  373.267672][  T429] 
[  373.289856][    T7] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  373.307862][    T7] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  373.321201][    T7] EXT4-fs (loop4): This should not happen!! Data will be lost
[  373.321201][    T7] 
[  373.342021][    T7] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  373.356498][    T7] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  373.369548][    T7] EXT4-fs (loop5): This should not happen!! Data will be lost
[  373.369548][    T7] 
[  373.451394][T16667] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
[  373.462091][T16670] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
[  373.531689][T16677] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
[  373.572136][T16673] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[  373.609306][T16690] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  373.625035][    T7] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  373.644455][  T429] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  373.655342][    T7] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  373.664573][T16690] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  373.691810][  T429] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  373.707623][  T429] EXT4-fs (loop3): This should not happen!! Data will be lost
[  373.707623][  T429] 
[  373.746448][  T429] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:4: lblock 0 mapped to illegal pblock 112 (length 1)
[  373.752157][    T7] EXT4-fs (loop2): This should not happen!! Data will be lost
[  373.752157][    T7] 
[  373.793392][T16688] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue
[  373.800790][  T429] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  373.820452][  T429] EXT4-fs (loop1): This should not happen!! Data will be lost
[  373.820452][  T429] 
[  373.820983][    T7] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  373.846365][    T7] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  373.859095][    T7] EXT4-fs (loop0): This should not happen!! Data will be lost
[  373.859095][    T7] 
[  374.219764][T16719] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  374.243376][T16698] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm syz-executor.3: bad extent address lblock: 264, depth: 1 pblock 0
[  374.310186][T16719] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  374.328052][T16698] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  374.344401][T16698] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  374.359997][  T429] EXT4-fs error (device loop0): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:4: lblock 0 mapped to illegal pblock 112 (length 1)
[  374.376553][T16698] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  374.387647][T16698] EXT4-fs error (device loop3): ext4_ext_truncate:4481: inode #19: comm syz-executor.3: mark_inode_dirty error
[  374.397103][T16721] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  374.401422][T16698] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  374.424519][  T429] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  374.443282][    T7] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  374.455604][  T429] EXT4-fs (loop0): This should not happen!! Data will be lost
[  374.455604][  T429] 
[  374.468399][T16698] EXT4-fs error (device loop3): ext4_truncate:4403: inode #19: comm syz-executor.3: mark_inode_dirty error
[  374.481446][    T7] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  374.495435][T16721] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
2026/08/21 20:23:51 executed programs: 2990
[  374.504106][  T429] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  374.531806][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  374.535408][    T7] EXT4-fs (loop1): This should not happen!! Data will be lost
[  374.535408][    T7] 
[  374.547078][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  374.561664][  T429] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  374.572983][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  374.572983][  T469] 
[  374.590032][  T429] EXT4-fs (loop3): This should not happen!! Data will be lost
[  374.590032][  T429] 
[  374.831902][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  374.853228][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  374.870071][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  374.870071][  T429] 
[  374.986907][  T429] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  375.035493][  T386] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  375.045288][  T429] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  375.065493][  T429] EXT4-fs (loop2): This should not happen!! Data will be lost
[  375.065493][  T429] 
[  375.068721][T16727] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  375.092214][  T386] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  375.094085][T16727] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  375.120233][  T429] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  375.122635][  T386] EXT4-fs (loop5): This should not happen!! Data will be lost
[  375.122635][  T386] 
[  375.138230][  T429] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  375.163372][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  375.165295][  T429] EXT4-fs (loop1): This should not happen!! Data will be lost
[  375.165295][  T429] 
[  375.192901][  T386] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:3: bad extent address lblock: 0, depth: 1 pblock 0
[  375.195607][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  375.223837][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  375.223837][  T469] 
[  375.242562][  T386] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  375.264807][  T386] EXT4-fs (loop3): This should not happen!! Data will be lost
[  375.264807][  T386] 
[  375.512128][  T469] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  375.540976][  T469] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  375.566008][  T469] EXT4-fs (loop4): This should not happen!! Data will be lost
[  375.566008][  T469] 
[  375.631174][  T429] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  375.650859][    T7] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  375.684564][  T429] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  375.698311][  T429] EXT4-fs (loop5): This should not happen!! Data will be lost
[  375.698311][  T429] 
[  375.717107][    T7] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  375.730210][    T7] EXT4-fs (loop1): This should not happen!! Data will be lost
[  375.730210][    T7] 
[  375.734060][T16788] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  375.757642][T16788] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  375.776295][  T429] EXT4-fs error (device loop3): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:4: lblock 0 mapped to illegal pblock 112 (length 1)
[  375.792971][  T429] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  375.793276][    T7] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  375.806510][  T429] EXT4-fs (loop3): This should not happen!! Data will be lost
[  375.806510][  T429] 
[  375.823433][    T7] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  375.848585][  T429] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  375.856997][    T7] EXT4-fs (loop2): This should not happen!! Data will be lost
[  375.856997][    T7] 
[  375.905546][  T429] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  375.926737][  T429] EXT4-fs (loop0): This should not happen!! Data will be lost
[  375.926737][  T429] 
[  376.094229][T16797] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 301: comm syz-executor.1: lblock 173 mapped to illegal pblock 301 (length 1)
[  376.134797][    T7] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  376.149515][T16797] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  376.174857][    T7] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  376.189565][    T7] EXT4-fs (loop4): This should not happen!! Data will be lost
[  376.189565][    T7] 
[  376.206723][T16797] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  376.220420][T16797] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  376.231193][T16797] EXT4-fs error (device loop1): ext4_ext_truncate:4481: inode #19: comm syz-executor.1: mark_inode_dirty error
[  376.232089][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  376.244516][T16797] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  376.270204][T16797] EXT4-fs error (device loop1): ext4_truncate:4403: inode #19: comm syz-executor.1: mark_inode_dirty error
[  376.288008][  T429] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  376.307947][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  376.326163][ T1267] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  376.342927][  T429] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  376.344323][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  376.344323][  T469] 
[  376.357485][  T429] EXT4-fs (loop3): This should not happen!! Data will be lost
[  376.357485][  T429] 
[  376.370429][ T1267] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  376.392305][ T1267] EXT4-fs (loop1): This should not happen!! Data will be lost
[  376.392305][ T1267] 
[  376.425372][    T7] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  376.429091][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  376.440419][    T7] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  376.460173][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  376.469414][    T7] EXT4-fs (loop0): This should not happen!! Data will be lost
[  376.469414][    T7] 
[  376.483087][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  376.483087][  T469] 
[  376.772832][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  376.809416][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  376.843221][T16829] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  376.873687][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  376.873687][ T1267] 
[  376.913495][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  376.933932][T16832] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm syz-executor.3: bad extent address lblock: 169, depth: 1 pblock 0
[  376.949551][T16832] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  376.953421][T16829] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  376.964075][T16832] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  376.977731][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  376.990822][T16832] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  377.004625][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  377.014025][T16832] EXT4-fs error (device loop3): ext4_ext_truncate:4481: inode #19: comm syz-executor.3: mark_inode_dirty error
[  377.038185][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  377.057674][T16832] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  377.061203][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  377.061203][  T469] 
[  377.069240][T16832] EXT4-fs error (device loop3): ext4_truncate:4403: inode #19: comm syz-executor.3: mark_inode_dirty error
[  377.089641][  T429] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  377.091248][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  377.091248][ T1267] 
[  377.123771][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  377.142027][  T429] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  377.145420][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  377.155324][  T429] EXT4-fs (loop2): This should not happen!! Data will be lost
[  377.155324][  T429] 
[  377.170333][  T469] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  377.181468][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  377.181468][ T1267] 
[  377.206006][  T469] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  377.219385][  T469] EXT4-fs (loop3): This should not happen!! Data will be lost
[  377.219385][  T469] 
[  377.485593][  T429] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  377.509817][  T429] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  377.526069][  T429] EXT4-fs (loop5): This should not happen!! Data will be lost
[  377.526069][  T429] 
[  377.722470][T16883] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  377.750080][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  377.753556][T16883] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  377.765168][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  377.829739][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  377.843135][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  377.843135][  T429] 
[  377.865064][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  377.866162][  T433] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  377.878338][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  377.878338][  T469] 
[  377.899117][  T433] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  377.916448][ T1267] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  377.916564][  T429] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  377.933388][  T469] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  377.945815][  T433] EXT4-fs (loop5): This should not happen!! Data will be lost
[  377.945815][  T433] 
[  377.970475][  T429] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  377.975790][  T469] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  377.990717][ T1267] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  378.009557][ T1267] EXT4-fs (loop1): This should not happen!! Data will be lost
[  378.009557][ T1267] 
[  378.017978][  T429] EXT4-fs (loop2): This should not happen!! Data will be lost
[  378.017978][  T429] 
[  378.020864][  T469] EXT4-fs (loop3): This should not happen!! Data will be lost
[  378.020864][  T469] 
[  378.468982][T16890] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  378.484985][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  378.493837][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  378.499439][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  378.544183][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  378.558024][T16890] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  378.559990][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  378.559990][  T469] 
[  378.587433][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  378.587433][  T429] 
[  378.607519][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  378.623187][ T1267] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  378.639163][    T7] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  378.670888][ T1267] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  378.671321][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  378.684158][    T7] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  378.697688][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  378.697688][  T469] 
[  378.699832][ T1267] EXT4-fs (loop3): This should not happen!! Data will be lost
[  378.699832][ T1267] 
[  378.710778][    T7] EXT4-fs (loop2): This should not happen!! Data will be lost
[  378.710778][    T7] 
[  378.744986][  T429] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  378.761329][  T429] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  378.774761][  T429] EXT4-fs (loop1): This should not happen!! Data will be lost
[  378.774761][  T429] 
[  379.057916][  T429] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  379.112665][  T429] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  379.169459][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  379.180967][  T429] EXT4-fs (loop5): This should not happen!! Data will be lost
[  379.180967][  T429] 
[  379.200099][    T7] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  379.205650][T16949] EXT4-fs error (device loop4): ext4_read_block_bitmap_nowait:476: comm syz-executor.4: Invalid block bitmap block 0 in block_group 0
[  379.236958][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  379.238242][    T7] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  379.251514][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  379.251514][ T1267] 
[  379.270029][    T7] EXT4-fs (loop2): This should not happen!! Data will be lost
[  379.270029][    T7] 
[  379.275234][T16949] EXT4-fs error (device loop4): ext4_discard_preallocations:4605: comm syz-executor.4: Error -117 reading block bitmap for 0
[  379.307004][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  379.321940][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  379.335605][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  379.335605][ T1267] 
[  379.360201][  T469] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  379.375007][  T469] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  379.388377][  T469] EXT4-fs (loop3): This should not happen!! Data will be lost
[  379.388377][  T469] 
2026/08/21 20:23:56 executed programs: 3033
[  379.591564][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  379.623750][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  379.659604][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  379.659604][  T469] 
[  379.667845][T16959] EXT4-fs error (device loop4): ext4_map_blocks:742: inode #19: block 475: comm syz-executor.4: lblock 347 mapped to illegal pblock 475 (length 1)
[  379.723633][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  379.745876][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  379.768299][T16959] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  379.777675][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  379.777675][  T469] 
[  379.805626][T16959] EXT4-fs error (device loop4): ext4_ext_truncate:4481: inode #19: comm syz-executor.4: mark_inode_dirty error
[  379.825948][T16959] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  379.835825][T16959] EXT4-fs error (device loop4): ext4_truncate:4403: inode #19: comm syz-executor.4: mark_inode_dirty error
[  379.849030][  T469] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  379.873929][  T469] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  379.875774][    T7] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  379.887120][  T469] EXT4-fs (loop3): This should not happen!! Data will be lost
[  379.887120][  T469] 
[  379.918497][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  379.923007][    T7] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  379.933505][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  379.960411][    T7] EXT4-fs (loop5): This should not happen!! Data will be lost
[  379.960411][    T7] 
[  379.962535][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  379.978723][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  379.987232][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  379.987232][ T1267] 
[  380.001948][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  380.001948][  T429] 
[  380.231605][ T1267] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  380.280110][ T1267] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  380.296679][ T1267] EXT4-fs (loop1): This should not happen!! Data will be lost
[  380.296679][ T1267] 
[  380.378084][T16991] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm syz-executor.5: bad extent address lblock: 148, depth: 1 pblock 0
[  380.397843][T16991] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  380.428145][T16991] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  380.444412][ T1267] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  380.487726][T16991] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  380.499476][ T1267] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  380.510417][T16991] EXT4-fs error (device loop5): ext4_ext_truncate:4481: inode #19: comm syz-executor.5: mark_inode_dirty error
[  380.527694][  T433] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  380.543382][  T429] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  380.544565][ T1267] EXT4-fs (loop2): This should not happen!! Data will be lost
[  380.544565][ T1267] 
[  380.561208][T16991] EXT4-fs error (device loop5) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  380.581005][  T429] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  380.599994][  T433] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  380.600905][    T7] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  380.623726][  T429] EXT4-fs (loop0): This should not happen!! Data will be lost
[  380.623726][  T429] 
[  380.627616][    T7] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  380.649697][    T7] EXT4-fs (loop3): This should not happen!! Data will be lost
[  380.649697][    T7] 
[  380.650019][  T433] EXT4-fs (loop4): This should not happen!! Data will be lost
[  380.650019][  T433] 
[  380.670105][T16991] EXT4-fs error (device loop5): ext4_truncate:4403: inode #19: comm syz-executor.5: mark_inode_dirty error
[  380.699800][  T429] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  380.715751][  T429] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  380.730054][  T429] EXT4-fs (loop5): This should not happen!! Data will be lost
[  380.730054][  T429] 
[  380.784355][  T429] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  380.799955][  T429] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  380.815798][  T429] EXT4-fs (loop1): This should not happen!! Data will be lost
[  380.815798][  T429] 
[  381.199697][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  381.230701][T17025] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm syz-executor.4: bad extent address lblock: 299, depth: 1 pblock 0
[  381.246526][T17025] EXT4-fs error (device loop4): ext4_read_block_bitmap_nowait:476: comm syz-executor.4: Invalid block bitmap block 0 in block_group 0
[  381.265874][  T429] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  381.266134][T17025] EXT4-fs error (device loop4): ext4_discard_preallocations:4605: comm syz-executor.4: Error -117 reading block bitmap for 0
[  381.291527][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  381.297882][T17025] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  381.317283][T17050] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  381.322822][T17025] EXT4-fs error (device loop4): ext4_ext_truncate:4481: inode #19: comm syz-executor.4: mark_inode_dirty error
[  381.351082][T17025] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  381.362255][T17025] EXT4-fs error (device loop4): ext4_truncate:4403: inode #19: comm syz-executor.4: mark_inode_dirty error
[  381.372975][  T429] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  381.374469][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  381.374469][  T433] 
[  381.408219][  T429] EXT4-fs (loop1): This should not happen!! Data will be lost
[  381.408219][  T429] 
[  381.420784][  T469] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  381.421660][T17050] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  381.439717][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  381.464690][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  381.471886][  T469] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  381.480784][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  381.480784][  T429] 
[  381.502364][  T433] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  381.502675][  T469] EXT4-fs (loop5): This should not happen!! Data will be lost
[  381.502675][  T469] 
[  381.522689][  T433] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  381.549085][  T433] EXT4-fs (loop3): This should not happen!! Data will be lost
[  381.549085][  T433] 
[  381.549544][  T429] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  381.576268][  T429] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  381.589007][  T429] EXT4-fs (loop0): This should not happen!! Data will be lost
[  381.589007][  T429] 
[  382.054935][  T429] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  382.077118][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  382.094438][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  382.107786][  T429] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  382.114056][T17083] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  382.121530][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  382.121530][  T469] 
[  382.131590][  T429] EXT4-fs (loop2): This should not happen!! Data will be lost
[  382.131590][  T429] 
[  382.139834][T17083] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  382.171057][T17063] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  382.195615][T17063] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  382.204077][ T1267] EXT4-fs error (device loop5): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:7: lblock 0 mapped to illegal pblock 112 (length 1)
[  382.225934][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  382.240569][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  382.241296][  T433] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  382.253683][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  382.253683][ T1267] 
[  382.268296][  T469] EXT4-fs error (device loop3): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:6: lblock 0 mapped to illegal pblock 112 (length 1)
[  382.280497][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  382.293410][  T469] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  382.305717][  T433] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  382.318414][  T469] EXT4-fs (loop3): This should not happen!! Data will be lost
[  382.318414][  T469] 
[  382.331317][  T433] EXT4-fs (loop1): This should not happen!! Data will be lost
[  382.331317][  T433] 
[  382.342807][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  382.342807][  T429] 
[  382.747396][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  382.776893][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  382.778453][T17087] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  382.794361][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  382.821989][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  382.821989][  T433] 
[  382.827552][T17094] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  382.838174][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  382.866627][T17087] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  382.867026][  T433] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  382.883013][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  382.883013][ T1267] 
[  382.907487][T17094] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  382.922145][  T433] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  382.935035][  T433] EXT4-fs (loop3): This should not happen!! Data will be lost
[  382.935035][  T433] 
[  382.945275][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  382.973099][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  382.973516][  T433] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  382.986330][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  382.986330][ T1267] 
[  383.011473][  T433] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  383.024206][  T433] EXT4-fs (loop0): This should not happen!! Data will be lost
[  383.024206][  T433] 
[  383.053864][  T433] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  383.068788][  T433] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  383.083356][  T433] EXT4-fs (loop1): This should not happen!! Data will be lost
[  383.083356][  T433] 
[  383.283676][T17127] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 210: comm syz-executor.1: lblock 82 mapped to illegal pblock 210 (length 1)
[  383.331822][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  383.333559][T17127] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  383.375194][T17129] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm syz-executor.0: bad extent address lblock: 133, depth: 1 pblock 0
[  383.383094][T17127] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  383.410982][T17127] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  383.421942][T17129] EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
[  383.446541][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  383.459822][ T1267] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  383.473725][T17127] EXT4-fs error (device loop1): ext4_ext_truncate:4481: inode #19: comm syz-executor.1: mark_inode_dirty error
[  383.485996][ T1267] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  383.486689][T17129] EXT4-fs error (device loop0): ext4_discard_preallocations:4605: comm syz-executor.0: Error -117 reading block bitmap for 0
[  383.500393][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  383.514953][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  383.514953][  T433] 
[  383.532361][T17129] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  383.557564][ T1267] EXT4-fs (loop3): This should not happen!! Data will be lost
[  383.557564][ T1267] 
[  383.562355][T17129] EXT4-fs error (device loop0): ext4_ext_truncate:4481: inode #19: comm syz-executor.0: mark_inode_dirty error
[  383.581671][T17129] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  383.582676][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  383.591669][T17129] EXT4-fs error (device loop0): ext4_truncate:4403: inode #19: comm syz-executor.0: mark_inode_dirty error
[  383.617339][T17127] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  383.627782][  T433] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  383.629448][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  383.629448][  T429] 
[  383.655087][T17127] EXT4-fs error (device loop1): ext4_truncate:4403: inode #19: comm syz-executor.1: mark_inode_dirty error
[  383.658035][  T433] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  383.681637][  T433] EXT4-fs (loop5): This should not happen!! Data will be lost
[  383.681637][  T433] 
[  383.681942][  T429] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  383.715303][  T429] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  383.729588][  T429] EXT4-fs (loop0): This should not happen!! Data will be lost
[  383.729588][  T429] 
[  383.823690][  T429] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 112: comm kworker/u4:4: lblock 0 mapped to illegal pblock 112 (length 1)
[  383.843189][  T429] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117
[  383.857671][  T429] EXT4-fs (loop1): This should not happen!! Data will be lost
[  383.857671][  T429] 
[  384.092026][T17155] EXT4-fs error (device loop2): ext4_read_block_bitmap_nowait:476: comm syz-executor.2: Invalid block bitmap block 0 in block_group 0
[  384.120814][T17155] EXT4-fs error (device loop2): ext4_discard_preallocations:4605: comm syz-executor.2: Error -117 reading block bitmap for 0
[  384.151595][  T433] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  384.190973][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  384.214775][  T429] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  384.230777][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  384.236898][    T7] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  384.246269][  T433] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  384.276454][  T433] EXT4-fs (loop2): This should not happen!! Data will be lost
[  384.276454][  T433] 
[  384.279426][  T429] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  384.289576][    T7] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  384.307368][  T433] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  384.318271][    T7] EXT4-fs (loop3): This should not happen!! Data will be lost
[  384.318271][    T7] 
[  384.346925][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  384.349954][  T429] EXT4-fs (loop4): This should not happen!! Data will be lost
[  384.349954][  T429] 
[  384.359712][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  384.359712][  T469] 
[  384.370103][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  384.392363][  T433] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  384.392369][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  384.392369][ T1267] 
[  384.419188][  T433] EXT4-fs (loop0): This should not happen!! Data will be lost
[  384.419188][  T433] 
2026/08/21 20:24:02 executed programs: 3076
[  384.857524][  T429] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:4: bad extent address lblock: 0, depth: 1 pblock 0
[  384.908836][  T429] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  384.943099][  T429] EXT4-fs (loop2): This should not happen!! Data will be lost
[  384.943099][  T429] 
[  384.961450][ T1267] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  385.018763][  T469] EXT4-fs error (device loop1): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  385.035047][  T469] EXT4-fs (loop1): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  385.040495][ T1267] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  385.048727][  T469] EXT4-fs (loop1): This should not happen!! Data will be lost
[  385.048727][  T469] 
[  385.077226][ T1267] EXT4-fs (loop4): This should not happen!! Data will be lost
[  385.077226][ T1267] 
[  385.104354][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  385.105635][  T433] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  385.135909][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  385.152191][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  385.171919][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  385.171919][  T469] 
[  385.182401][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  385.195726][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  385.195726][ T1267] 
[  385.195740][  T433] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  385.195757][  T433] EXT4-fs (loop3): This should not happen!! Data will be lost
[  385.195757][  T433] 
[  385.611427][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  385.662069][T17233] EXT4-fs error (device loop5): ext4_read_block_bitmap_nowait:476: comm syz-executor.5: Invalid block bitmap block 0 in block_group 0
[  385.679601][T17233] EXT4-fs error (device loop5): ext4_discard_preallocations:4605: comm syz-executor.5: Error -117 reading block bitmap for 0
[  385.683022][T17225] EXT4-fs error (device loop4): ext4_read_block_bitmap_nowait:476: comm syz-executor.4: Invalid block bitmap block 0 in block_group 0
[  385.696021][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  385.730688][T17230] EXT4-fs error (device loop0): ext4_map_blocks:742: inode #19: block 375: comm syz-executor.0: lblock 247 mapped to illegal pblock 375 (length 1)
[  385.735715][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  385.735715][  T469] 
[  385.753623][ T1267] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  385.767528][T17246] EXT4-fs error (device loop3): ext4_read_block_bitmap_nowait:476: comm syz-executor.3: Invalid block bitmap block 0 in block_group 0
[  385.795332][ T1267] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  385.800611][T17225] EXT4-fs error (device loop4): ext4_discard_preallocations:4605: comm syz-executor.4: Error -117 reading block bitmap for 0
[  385.816575][ T1267] EXT4-fs (loop5): This should not happen!! Data will be lost
[  385.816575][ T1267] 
[  385.832473][T17230] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  385.881168][T17246] EXT4-fs error (device loop3): ext4_discard_preallocations:4605: comm syz-executor.3: Error -117 reading block bitmap for 0
[  385.886869][T17230] EXT4-fs error (device loop0): ext4_ext_truncate:4481: inode #19: comm syz-executor.0: mark_inode_dirty error
[  385.915718][  T433] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  385.916576][T17230] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  385.931360][  T433] EXT4-fs (loop4): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  385.941465][T17230] EXT4-fs error (device loop0): ext4_truncate:4403: inode #19: comm syz-executor.0: mark_inode_dirty error
[  385.957506][  T469] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  385.968849][  T433] EXT4-fs (loop4): This should not happen!! Data will be lost
[  385.968849][  T433] 
[  385.984112][  T469] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  386.006510][  T469] EXT4-fs (loop3): This should not happen!! Data will be lost
[  386.006510][  T469] 
[  386.041046][  T469] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  386.058454][  T469] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  386.074078][  T469] EXT4-fs (loop0): This should not happen!! Data will be lost
[  386.074078][  T469] 
[  386.421485][T17255] EXT4-fs error (device loop1): ext4_map_blocks:742: inode #19: block 237: comm syz-executor.1: lblock 109 mapped to illegal pblock 237 (length 1)
[  386.441490][  T433] EXT4-fs error (device loop5): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:5: bad extent address lblock: 0, depth: 1 pblock 0
[  386.460022][T17258] EXT4-fs error (device loop4): ext4_ext_map_blocks:4209: inode #19: comm syz-executor.4: bad extent address lblock: 159, depth: 1 pblock 0
[  386.490945][T17282] EXT4-fs error (device loop3) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  386.503449][T17282] EXT4-fs error (device loop3): ext4_dirty_inode:6181: inode #19: comm syz-executor.3: mark_inode_dirty error
[  386.508163][  T433] EXT4-fs (loop5): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  386.527185][T17255] EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:476: comm syz-executor.1: Invalid block bitmap block 0 in block_group 0
[  386.531842][ T1267] EXT4-fs error (device loop0): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:7: bad extent address lblock: 0, depth: 1 pblock 0
[  386.549013][T17255] EXT4-fs error (device loop1): ext4_discard_preallocations:4605: comm syz-executor.1: Error -117 reading block bitmap for 0
[  386.585067][T17258] EXT4-fs error (device loop4): ext4_read_block_bitmap_nowait:476: comm syz-executor.4: Invalid block bitmap block 0 in block_group 0
[  386.585417][T17255] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  386.603254][  T469] EXT4-fs error (device loop2): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:6: bad extent address lblock: 0, depth: 1 pblock 0
[  386.615060][T17255] EXT4-fs error (device loop1): ext4_ext_truncate:4481: inode #19: comm syz-executor.1: mark_inode_dirty error
[  386.646881][T17255] EXT4-fs error (device loop1) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  386.647220][    T7] EXT4-fs error (device loop3): ext4_ext_map_blocks:4209: inode #19: comm kworker/u4:0: bad extent address lblock: 0, depth: 1 pblock 0
[  386.657900][T17255] EXT4-fs error (device loop1): ext4_truncate:4403: inode #19: comm syz-executor.1: mark_inode_dirty error
[  386.678431][T17258] EXT4-fs error (device loop4): ext4_discard_preallocations:4605: comm syz-executor.4: Error -117 reading block bitmap for 0
[  386.697716][  T433] EXT4-fs (loop5): This should not happen!! Data will be lost
[  386.697716][  T433] 
[  386.698410][T17258] EXT4-fs error (device loop4) in ext4_reserve_inode_write:5971: Corrupt filesystem
[  386.721492][  T469] EXT4-fs (loop2): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  386.724017][    T7] EXT4-fs (loop3): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  386.735424][ T1267] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 16 with error 117
[  386.749148][    T7] EXT4-fs (loop3): This should not happen!! Data will be lost
[  386.749148][    T7] 
[  386.751723][  T469] EXT4-fs (loop2): This should not happen!! Data will be lost
[  386.751723][  T469] 
[  386.763706][ T1267] EXT4-fs (loop0): This should not happen!! Data will be lost
[  386.763706][ T1267] 
[  386.778225][T17258] EXT4-fs error (device loop4): ext4_ext_truncate:4481: inode #19: comm syz-executor.4: mark_inode_dirty error

[host] Command execution timed out after 6m0s