BTRFS info (device loop0): at unmount dio bytes count 12288 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4272 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: 4272 Comm: syz-executor.0 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 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 : ffff80001fef7750 x29: ffff80001fef7750 x28: dfff800000000000 x27: ffff800015179b80 x26: 0000000000000002 x25: 0000000000000001 x24: ffff0000cca76000 x23: 0000000000000000 x22: 1fffe0001994ec2c x21: dfff800000000000 x20: 0000000000003000 x19: ffff0000cca76000 x18: 0000000000000000 x17: 0000000000000000 x16: ffff80000824ecc0 x15: 0000000000000003 x14: 00000000ffff8000 x13: 0000000021593e96 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000d19851c0 x8 : ffff80000a22921c x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff80000a229000 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:3976 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:1087 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:188 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: 2362654 hardirqs last enabled at (2362653): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (2362654): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (2359840): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (2359840): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (2359617): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (2359617): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (2359617): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (2359617): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace 97ab55afa94b0c09 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4272 at fs/btrfs/block-group.c:3994 btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3993 Modules linked in: CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G W 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3993 lr : btrfs_free_block_groups+0xa8c/0xb54 fs/btrfs/block-group.c:3993 sp : ffff80001fef7780 x29: ffff80001fef77a0 x28: dfff800000000000 x27: ffff800015179b80 x26: 1fffe0001ad81a20 x25: 0000000000000001 x24: 0000000000028000 x23: ffff0000cca77800 x22: ffff0000cca778a8 x21: ffff0000d6c0d9d0 x20: ffff0000d6c0d100 x19: ffff0000d6c0c000 x18: 1fffe0001994ef0a x17: 0000000000000000 x16: ffff80000824ecc0 x15: 0000000000000003 x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000d19851c0 x8 : ffff80000a23dcd8 x7 : ffff80000a223b48 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000083059e0 x2 : 0000000000000001 x1 : 0000000000028000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3993 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:1087 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:188 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: 2362734 hardirqs last enabled at (2362733): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (2362734): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (2362688): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (2362688): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (2362657): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (2362657): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (2362657): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (2362657): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace 97ab55afa94b0c0a ]--- 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: 4272 at fs/btrfs/block-group.c:4006 btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:4006 Modules linked in: CPU: 0 PID: 4272 Comm: syz-executor.0 Tainted: G W 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:4006 lr : btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:4006 sp : ffff80001fef7780 x29: ffff80001fef77a0 x28: dfff800000000000 x27: ffff800015179b80 x26: 1fffe0001ad81a20 x25: 0000000000000001 x24: 0000000000003000 x23: ffff0000cca77800 x22: ffff0000cca778a8 x21: ffff0000d6c0d9d0 x20: ffff0000d6c0d100 x19: dead000000000100 x18: 0000000000000003 x17: 0000000000000000 x16: ffff80000824ecc0 x15: 00000000ffffffff x14: ffff0000d19851c0 x13: 0000000000000001 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000d19851c0 x8 : ffff80000a23dca8 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001fef6bf8 x4 : ffff800014b9fae0 x3 : ffff8000083059e0 x2 : 0000000000000001 x1 : 0000000000003000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:4006 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:1087 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:188 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: 2362978 hardirqs last enabled at (2362977): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257 hardirqs last disabled at (2362978): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (2362934): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (2362934): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (2362915): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (2362915): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (2362915): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (2362915): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace 97ab55afa94b0c0b ]--- 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...