------------[ cut here ]------------ WARNING: CPU: 1 PID: 4007 at fs/btrfs/block-group.c:135 btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:135 Modules linked in: CPU: 1 PID: 4007 Comm: syz-executor.2 Not tainted 5.15.115-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 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 : ffff80001c927750 x29: ffff80001c927750 x28: dfff800000000000 x27: ffff800014f7cbc0 x26: 0000000000000002 x25: 0000000000000001 x24: ffff0000ca045800 x23: 0000000000000000 x22: 1fffe00019408b2c x21: dfff800000000000 x20: 0000000000003000 x19: ffff0000ca045800 x18: 0000000000000000 x17: ff8080000a209140 x16: ffff80000824cbf4 x15: ffff80000a209140 x14: 00000000ffff8000 x13: ffffffffffffffff x12: 0000000000000000 x11: ff8080000a1f5038 x10: 0000000000000000 x9 : ffff80000a1f5038 x8 : ffff0000c68351c0 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff80000a1f4e1c 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:4498 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: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: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: 6241608 hardirqs last enabled at (6241607): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (6241608): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387 softirqs last enabled at (6240594): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (6240594): [] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587 softirqs last disabled at (6240473): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (6240473): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (6240473): [] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 ---[ end trace 943dd86fc7215409 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4007 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: 4007 Comm: syz-executor.2 Tainted: G W 5.15.115-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 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 : ffff80001c927780 x29: ffff80001c9277a0 x28: dfff800000000000 x27: ffff800014f7cbc0 x26: 1fffe000262cba20 x25: 0000000000000001 x24: 0000000000028000 x23: ffff0000cf2f4000 x22: ffff0000cf2f40a8 x21: ffff00013165d9d0 x20: ffff00013165d100 x19: ffff00013165c000 x18: 1fffe00019e5e80a x17: ff8080000a209140 x16: ffff80000824cbf4 x15: ffff80000a209140 x14: 1ffff0000291a06a x13: ffffffffffffffff x12: 0000000000000000 x11: ff8080000a2095b8 x10: 0000000000000000 x9 : ffff80000a2095b8 x8 : ffff0000c68351c0 x7 : ffff80000a1ef994 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800008303750 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:4498 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: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: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: 6241940 hardirqs last enabled at (6241939): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (6241940): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387 softirqs last enabled at (6241850): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (6241850): [] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587 softirqs last disabled at (6241611): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (6241611): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (6241611): [] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 ---[ end trace 943dd86fc721540a ]--- BTRFS info (device loop2): space_info 5 has 3043328 free, is not full BTRFS info (device loop2): space_info total=3276800, used=57344, pinned=0, reserved=12288, may_use=163840, readonly=0 zone_unusable=0 BTRFS info (device loop2): global_block_rsv: size 0 reserved 0 BTRFS info (device loop2): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop2): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop2): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop2): delayed_refs_rsv: size 0 reserved 0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4007 at fs/btrfs/block-group.c:3946 btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3946 Modules linked in: CPU: 1 PID: 4007 Comm: syz-executor.2 Tainted: G W 5.15.115-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 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 : ffff80001c927780 x29: ffff80001c9277a0 x28: dfff800000000000 x27: ffff800014f7cbc0 x26: 1fffe000262cba20 x25: 0000000000000001 x24: 0000000000003000 x23: ffff0000cf2f4000 x22: ffff0000cf2f40a8 x21: ffff00013165d9d0 x20: ffff00013165d100 x19: dead000000000100 x18: 1fffe00036903d8e x17: 1fffe00036903d8e x16: ffff8000082ea770 x15: ffff80001496f100 x14: 1ffff0000291a06a x13: ffffffffffffffff x12: 0000000000000000 x11: ff8080000a209588 x10: 0000000000000000 x9 : ffff80000a209588 x8 : ffff0000c68351c0 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000825722c 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:4498 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: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: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: 6242338 hardirqs last enabled at (6242337): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1338 [inline] hardirqs last enabled at (6242337): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4780 hardirqs last disabled at (6242338): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387 softirqs last enabled at (6242312): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (6242312): [] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587 softirqs last disabled at (6242305): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (6242305): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (6242305): [] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 ---[ end trace 943dd86fc721540b ]--- BTRFS info (device loop2): space_info 5 has 3043328 free, is not full BTRFS info (device loop2): space_info total=3276800, used=57344, pinned=0, reserved=12288, may_use=163840, readonly=0 zone_unusable=0 BTRFS info (device loop2): global_block_rsv: size 0 reserved 0 BTRFS info (device loop2): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop2): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop2): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop2): delayed_refs_rsv: size 0 reserved 0 VFS: Busy inodes after unmount of loop2. Self-destruct in 5 seconds. Have a nice day...