BTRFS info (device loop6): last unmount of filesystem 24c7a497-3402-47dd-bef8-82358f5f30e0 BTRFS info (device loop6): at unmount dio bytes count 8192 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7037 at fs/btrfs/block-group.c:159 btrfs_put_block_group+0x2cc/0x360 fs/btrfs/block-group.c:159 Modules linked in: CPU: 1 UID: 0 PID: 7037 Comm: syz-executor Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_put_block_group+0x2cc/0x360 fs/btrfs/block-group.c:159 lr : btrfs_put_block_group+0x2cc/0x360 fs/btrfs/block-group.c:159 sp : ffff80009fb87900 x29: ffff80009fb87900 x28: dead000000000100 x27: 0000000000000002 x26: 0000000000000001 x25: ffff0000c6874800 x24: 0000000000000000 x23: dfff800000000000 x22: ffff0000f1368180 x21: 0000000000000001 x20: 0000000000002000 x19: ffff0000c6874800 x18: ffff0000d3fface0 x17: 0000000000000000 x16: ffff8000803b3884 x15: 0000000000000001 x14: 1fffe00018d0e935 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600018d0e936 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb321e40 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000001 x3 : ffff80008262b258 x2 : 0000000000000001 x1 : 0000000000002000 x0 : 0000000000000000 Call trace: btrfs_put_block_group+0x2cc/0x360 fs/btrfs/block-group.c:159 (P) btrfs_free_block_groups+0x9d8/0xe4c fs/btrfs/block-group.c:4466 close_ctree+0x644/0xb60 fs/btrfs/disk-io.c:4385 btrfs_put_super+0x70/0x80 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2bc fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1237 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2100 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380 task_work_run+0x230/0x2e0 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 408906 hardirqs last enabled at (408905): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (408906): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (408650): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (408650): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (408637): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7037 at fs/btrfs/block-group.c:4484 btrfs_free_block_groups+0xaf8/0xe4c fs/btrfs/block-group.c:4483 Modules linked in: CPU: 1 UID: 0 PID: 7037 Comm: syz-executor Tainted: G W 6.13.0-rc3-syzkaller-g573067a5a685 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0xaf8/0xe4c fs/btrfs/block-group.c:4483 lr : btrfs_free_block_groups+0xd24/0xe4c fs/btrfs/block-group.c:4483 sp : ffff80009fb87940 x29: ffff80009fb87960 x28: dead000000000100 x27: 0000000000100000 x26: 1fffe0001e26d239 x25: ffff0000c6874000 x24: 0000000000028000 x23: ffff0000c6873800 x22: ffff0000c68738b8 x21: ffff0000f1369a90 x20: ffff0000f13691c8 x19: dfff800000000000 x18: 1fffe00018d0e70e x17: 0000000000000000 x16: ffff8000803b3884 x15: 0000000000000001 x14: 1fffe00018d0e701 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb321e40 x7 : ffff8000826265b0 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008047d328 x2 : 0000000000000001 x1 : 0000000000028000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0xaf8/0xe4c fs/btrfs/block-group.c:4483 (P) close_ctree+0x644/0xb60 fs/btrfs/disk-io.c:4385 btrfs_put_super+0x70/0x80 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2bc fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1237 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2100 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380 task_work_run+0x230/0x2e0 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 409162 hardirqs last enabled at (409161): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (409162): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (409136): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (409136): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (408909): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop6): space_info DATA+METADATA has 3039232 free, is not full BTRFS info (device loop6): space_info total=3276800, used=65536, pinned=0, reserved=8192, may_use=163840, readonly=0 zone_unusable=0 BTRFS info (device loop6): global_block_rsv: size 0 reserved 0 BTRFS info (device loop6): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop6): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop6): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop6): delayed_refs_rsv: size 0 reserved 0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7037 at fs/btrfs/block-group.c:4496 btrfs_free_block_groups+0xcfc/0xe4c fs/btrfs/block-group.c:4496 Modules linked in: CPU: 1 UID: 0 PID: 7037 Comm: syz-executor Tainted: G W 6.13.0-rc3-syzkaller-g573067a5a685 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0xcfc/0xe4c fs/btrfs/block-group.c:4496 lr : btrfs_free_block_groups+0xcfc/0xe4c fs/btrfs/block-group.c:4496 sp : ffff80009fb87940 x29: ffff80009fb87960 x28: dead000000000100 x27: 0000000000100000 x26: 1fffe0001e26d239 x25: ffff0000c6874000 x24: 0000000000002000 x23: ffff0000c6873800 x22: ffff0000c68738b8 x21: ffff0000f1369a90 x20: ffff0000f13691c8 x19: dfff800000000000 x18: 1fffe00036700a7e x17: ffff80008f99d000 x16: ffff800080463930 x15: 0000000000000001 x14: 1fffe000367034d0 x13: ffff80009fb88000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb321e40 x7 : ffff8000803cf9cc x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : 0000000000002000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0xcfc/0xe4c fs/btrfs/block-group.c:4496 (P) close_ctree+0x644/0xb60 fs/btrfs/disk-io.c:4385 btrfs_put_super+0x70/0x80 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2bc fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1237 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2100 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380 task_work_run+0x230/0x2e0 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 409358 hardirqs last enabled at (409357): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1535 [inline] hardirqs last enabled at (409357): [] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5123 hardirqs last disabled at (409358): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (409262): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (409262): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (409165): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop6): space_info DATA+METADATA has 3039232 free, is not full BTRFS info (device loop6): space_info total=3276800, used=65536, pinned=0, reserved=8192, may_use=163840, readonly=0 zone_unusable=0 BTRFS info (device loop6): global_block_rsv: size 0 reserved 0 BTRFS info (device loop6): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop6): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop6): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop6): delayed_refs_rsv: size 0 reserved 0 VFS: Busy inodes after unmount of loop6 (btrfs) ------------[ cut here ]------------ kernel BUG at fs/super.c:652! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 UID: 0 PID: 7037 Comm: syz-executor Tainted: G W 6.13.0-rc3-syzkaller-g573067a5a685 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : generic_shutdown_super+0x2b8/0x2bc fs/super.c:650 lr : generic_shutdown_super+0x2b8/0x2bc fs/super.c:650 sp : ffff80009fb87ba0 x29: ffff80009fb87ba0 x28: 1fffe0001e42eb8a x27: 0000000000000008 x26: 0000000000000003 x25: dfff800000000000 x24: 1fffe00018e194f0 x23: ffff80008bb5d300 x22: dfff800000000000 x21: 0000000000000000 x20: ffff8000900cc9a0 x19: ffff0000c70ca668 x18: 0000000000000008 x17: ffff80008f99d000 x16: ffff80008b5fe85c x15: ffff700011f43a38 x14: 1ffff00011f43a38 x13: 0000000000000004 x12: ffffffffffffffff x11: 0000000000000001 x10: 0000000000ff0100 x9 : 22962bc9e3df8600 x8 : 22962bc9e3df8600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009fb872f8 x4 : ffff80008fa8f840 x3 : ffff8000804a225c x2 : 0000000000000000 x1 : 0000000100000000 x0 : 000000000000002f Call trace: generic_shutdown_super+0x2b8/0x2bc fs/super.c:650 (P) kill_anon_super+0x4c/0x7c fs/super.c:1237 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2100 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380 task_work_run+0x230/0x2e0 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: f0055960 910d0000 aa1303e1 97cfff31 (d4210000) ---[ end trace 0000000000000000 ]---