BTRFS info (device loop1): at unmount dio bytes count 12288 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4108 at fs/btrfs/block-group.c:135 btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:135 Modules linked in: CPU: 0 PID: 4108 Comm: syz-executor.1 Not tainted 5.15.107-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:135 lr : btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:135 sp : ffff80001cc67750 x29: ffff80001cc67750 x28: dfff800000000000 x27: ffff800014f7c660 x26: 0000000000000002 x25: 0000000000000001 x24: ffff0000c85f1800 x23: 0000000000000000 x22: 1fffe000190be32c x21: dfff800000000000 x20: 0000000000003000 x19: ffff0000c85f1800 x18: 0000000000000000 x17: ff8080000a205a04 x16: ffff80000824c758 x15: ffff80000a205a04 x14: 00000000ffff8000 x13: ffffffffffffffff x12: 0000000000000000 x11: ff8080000a1f18fc x10: 0000000000000000 x9 : ffff80000a1f18fc x8 : ffff0000c65b3580 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff80000a1f16e0 x2 : 0000000000000001 x1 : 0000000000003000 x0 : 0000000000000000 Call trace: btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:135 btrfs_free_block_groups+0x730/0xb54 fs/btrfs/block-group.c:3916 close_ctree+0x61c/0x860 fs/btrfs/disk-io.c:4481 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:1067 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2393 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:597 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 4295360 hardirqs last enabled at (4295359): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (4295360): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387 softirqs last enabled at (4294982): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (4294982): [] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587 softirqs last disabled at (4294967): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (4294967): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (4294967): [] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 ---[ end trace 3d4204bd042f14d9 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4108 at fs/btrfs/block-group.c:3934 btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3933 Modules linked in: CPU: 1 PID: 4108 Comm: syz-executor.1 Tainted: G W 5.15.107-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3933 lr : btrfs_free_block_groups+0xa8c/0xb54 fs/btrfs/block-group.c:3933 sp : ffff80001cc67780 x29: ffff80001cc677a0 x28: dfff800000000000 x27: ffff800014f7c660 x26: 1fffe00023f46a20 x25: 0000000000000001 x24: 0000000000028000 x23: ffff0000c85f1000 x22: ffff0000c85f10a8 x21: ffff00011fa359d0 x20: ffff00011fa35100 x19: ffff00011fa34000 x18: 1fffe000190be20a x17: ff8080000a205a04 x16: ffff80000824c758 x15: ffff80000a205a04 x14: 1ffff0000291a06a x13: ffffffffffffffff x12: 0000000000000000 x11: ff8080000a205e7c x10: 0000000000000000 x9 : ffff80000a205e7c x8 : ffff0000c65b3580 x7 : ffff80000a1ec1a0 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800008302764 x2 : 0000000000000001 x1 : 0000000000028000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3933 close_ctree+0x61c/0x860 fs/btrfs/disk-io.c:4481 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:1067 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2393 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:597 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 4295492 hardirqs last enabled at (4295491): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (4295492): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387 softirqs last enabled at (4295442): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (4295442): [] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587 softirqs last disabled at (4295363): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (4295363): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (4295363): [] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 ---[ end trace 3d4204bd042f14da ]--- BTRFS info (device loop1): space_info 5 has 3043328 free, is not full BTRFS info (device loop1): space_info total=3276800, used=57344, pinned=0, reserved=12288, may_use=163840, readonly=0 zone_unusable=0 BTRFS info (device loop1): global_block_rsv: size 0 reserved 0 BTRFS info (device loop1): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop1): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop1): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop1): delayed_refs_rsv: size 0 reserved 0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4108 at fs/btrfs/block-group.c:3946 btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3946 Modules linked in: CPU: 0 PID: 4108 Comm: syz-executor.1 Tainted: G W 5.15.107-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3946 lr : btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3946 sp : ffff80001cc67780 x29: ffff80001cc677a0 x28: dfff800000000000 x27: ffff800014f7c660 x26: 1fffe00023f46a20 x25: 0000000000000001 x24: 0000000000003000 x23: ffff0000c85f1000 x22: ffff0000c85f10a8 x21: ffff00011fa359d0 x20: ffff00011fa35100 x19: dead000000000100 x18: 1fffe000368ffd8e x17: 1fffe000368ffd8e x16: ffff8000082e9784 x15: ffff80001496eda0 x14: 1ffff0000291a06a x13: ffffffffffffffff x12: 0000000000000000 x11: ff8080000a205e4c x10: 0000000000000000 x9 : ffff80000a205e4c x8 : ffff0000c65b3580 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008256d5c x2 : 0000000000000001 x1 : 0000000000003000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3946 close_ctree+0x61c/0x860 fs/btrfs/disk-io.c:4481 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:1067 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2393 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:597 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 4295706 hardirqs last enabled at (4295705): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1337 [inline] hardirqs last enabled at (4295705): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4780 hardirqs last disabled at (4295706): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387 softirqs last enabled at (4295700): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (4295700): [] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587 softirqs last disabled at (4295691): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (4295691): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (4295691): [] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 ---[ end trace 3d4204bd042f14db ]--- BTRFS info (device loop1): space_info 5 has 3043328 free, is not full BTRFS info (device loop1): space_info total=3276800, used=57344, pinned=0, reserved=12288, may_use=163840, readonly=0 zone_unusable=0 BTRFS info (device loop1): global_block_rsv: size 0 reserved 0 BTRFS info (device loop1): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop1): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop1): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop1): delayed_refs_rsv: size 0 reserved 0 VFS: Busy inodes after unmount of loop1. Self-destruct in 5 seconds. Have a nice day...