BTRFS info (device loop0): at unmount dio bytes count 12288 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3984 at fs/btrfs/block-group.c:142 btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:142 Modules linked in: CPU: 0 PID: 3984 Comm: syz-executor.0 Not tainted 5.15.153-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:142 lr : btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:142 sp : ffff80001c7e7750 x29: ffff80001c7e7750 x28: dfff800000000000 x27: ffff800014fbd8a0 x26: 0000000000000002 x25: 0000000000000001 x24: ffff0000d5963000 x23: 0000000000000000 x22: 1fffe0001ab2c62c x21: dfff800000000000 x20: 0000000000003000 x19: ffff0000d5963000 x18: 0000000000000000 x17: 0000000000000000 x16: ffff80000824dad4 x15: 0000000000000003 x14: 00000000ffff8000 x13: 000000002ce94f95 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000ca563680 x8 : ffff80000a202b88 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff80000a20296c x2 : 0000000000000001 x1 : 0000000000003000 x0 : 0000000000000000 Call trace: btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:142 btrfs_free_block_groups+0x730/0xb54 fs/btrfs/block-group.c:3960 close_ctree+0x61c/0x860 fs/btrfs/disk-io.c:4508 btrfs_put_super+0x40/0x50 fs/btrfs/super.c:340 generic_shutdown_super+0x130/0x29c fs/super.c:475 kill_anon_super+0x4c/0x74 fs/super.c:1076 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2391 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0x108/0x128 fs/super.c:366 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150 task_work_run+0x130/0x1e4 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 1207892 hardirqs last enabled at (1207891): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (1207892): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (1207590): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1207590): [] __do_softirq+0xb5c/0xdb0 kernel/softirq.c:587 softirqs last disabled at (1207547): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1207547): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (1207547): [] __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:637 ---[ end trace 72e9b432e0a52988 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 3984 at fs/btrfs/block-group.c:3978 btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3977 Modules linked in: CPU: 1 PID: 3984 Comm: syz-executor.0 Tainted: G W 5.15.153-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3977 lr : btrfs_free_block_groups+0xa8c/0xb54 fs/btrfs/block-group.c:3977 sp : ffff80001c7e7780 x29: ffff80001c7e77a0 x28: dfff800000000000 x27: ffff800014fbd8a0 x26: 1fffe0001d002a20 x25: 0000000000000001 x24: 0000000000028000 x23: ffff0000d5964800 x22: ffff0000d59648a8 x21: ffff0000e80159d0 x20: ffff0000e8015100 x19: ffff0000e8014000 x18: 1fffe0001ab2c90a x17: 0000000000000000 x16: ffff80000824dad4 x15: 0000000000000003 x14: 1ffff0000292206a x13: dfff800000000000 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000ca563680 x8 : ffff80000a2172e0 x7 : ffff80000a1fd4b4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000083041cc x2 : 0000000000000001 x1 : 0000000000028000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3977 close_ctree+0x61c/0x860 fs/btrfs/disk-io.c:4508 btrfs_put_super+0x40/0x50 fs/btrfs/super.c:340 generic_shutdown_super+0x130/0x29c fs/super.c:475 kill_anon_super+0x4c/0x74 fs/super.c:1076 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2391 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0x108/0x128 fs/super.c:366 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150 task_work_run+0x130/0x1e4 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 1208472 hardirqs last enabled at (1208471): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (1208472): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (1208446): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1208446): [] __do_softirq+0xb5c/0xdb0 kernel/softirq.c:587 softirqs last disabled at (1207895): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1207895): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (1207895): [] __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:637 ---[ end trace 72e9b432e0a52989 ]--- BTRFS info (device loop0): space_info 5 has 3043328 free, is not full BTRFS info (device loop0): space_info total=3276800, used=57344, pinned=0, reserved=12288, may_use=163840, readonly=0 zone_unusable=0 BTRFS info (device loop0): global_block_rsv: size 0 reserved 0 BTRFS info (device loop0): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_refs_rsv: size 0 reserved 0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3984 at fs/btrfs/block-group.c:3990 btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3990 Modules linked in: CPU: 0 PID: 3984 Comm: syz-executor.0 Tainted: G W 5.15.153-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3990 lr : btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3990 sp : ffff80001c7e7780 x29: ffff80001c7e77a0 x28: dfff800000000000 x27: ffff800014fbd8a0 x26: 1fffe0001d002a20 x25: 0000000000000001 x24: 0000000000003000 x23: ffff0000d5964800 x22: ffff0000d59648a8 x21: ffff0000e80159d0 x20: ffff0000e8015100 x19: dead000000000100 x18: 1fffe000368fe78e x17: 1fffe000368fe78e x16: ffff8000082eb194 x15: ffff8000149aec00 x14: 1ffff0000292206a x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000ca563680 x8 : ffff80000a2172b0 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008046860 x2 : 0000000000000006 x1 : 0000000000003000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3990 close_ctree+0x61c/0x860 fs/btrfs/disk-io.c:4508 btrfs_put_super+0x40/0x50 fs/btrfs/super.c:340 generic_shutdown_super+0x130/0x29c fs/super.c:475 kill_anon_super+0x4c/0x74 fs/super.c:1076 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2391 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0x108/0x128 fs/super.c:366 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150 task_work_run+0x130/0x1e4 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 1208866 hardirqs last enabled at (1208865): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1338 [inline] hardirqs last enabled at (1208865): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4784 hardirqs last disabled at (1208866): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (1208850): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1208850): [] __do_softirq+0xb5c/0xdb0 kernel/softirq.c:587 softirqs last disabled at (1208839): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1208839): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (1208839): [] __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:637 ---[ end trace 72e9b432e0a5298a ]--- BTRFS info (device loop0): space_info 5 has 3043328 free, is not full BTRFS info (device loop0): space_info total=3276800, used=57344, pinned=0, reserved=12288, may_use=163840, readonly=0 zone_unusable=0 BTRFS info (device loop0): global_block_rsv: size 0 reserved 0 BTRFS info (device loop0): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_refs_rsv: size 0 reserved 0 VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day...