BTRFS info (device loop1): at unmount dio bytes count 53248 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6441 at fs/btrfs/block-group.c:159 btrfs_put_block_group+0x2cc/0x360 fs/btrfs/block-group.c:159 Modules linked in: CPU: 0 UID: 0 PID: 6441 Comm: syz-executor Not tainted 6.14.0-rc1-syzkaller-g2014c95afece #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 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 : ffff8000a5177900 x29: ffff8000a5177900 x28: dead000000000100 x27: 0000000000000002 x26: 0000000000000001 x25: ffff0000d389e000 x24: 0000000000000000 x23: dfff800000000000 x22: ffff0000f1810180 x21: 0000000000000001 x20: 000000000000d000 x19: ffff0000d389e000 x18: 1fffe000366f1c86 x17: ffff80008fbcd000 x16: ffff8000803b9ea0 x15: 0000000000000001 x14: 1fffe0001a713c35 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001a713c36 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c252bd00 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000001 x3 : ffff800082667928 x2 : 0000000000000001 x1 : 000000000000d000 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:4458 close_ctree+0x644/0xb60 fs/btrfs/disk-io.c:4458 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:1413 __cleanup_mnt+0x20/0x30 fs/namespace.c:1420 task_work_run+0x230/0x2e0 kernel/task_work.c:227 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: 280128 hardirqs last enabled at (280127): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (280128): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (278628): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (278628): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (278487): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6441 at fs/btrfs/block-group.c:4476 btrfs_free_block_groups+0xaf8/0xe4c fs/btrfs/block-group.c:4475 Modules linked in: CPU: 1 UID: 0 PID: 6441 Comm: syz-executor Tainted: G W 6.14.0-rc1-syzkaller-g2014c95afece #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0xaf8/0xe4c fs/btrfs/block-group.c:4475 lr : btrfs_free_block_groups+0xd24/0xe4c fs/btrfs/block-group.c:4475 sp : ffff8000a5177940 x29: ffff8000a5177960 x28: dead000000000100 x27: 0000000000100000 x26: 1fffe0001e302245 x25: ffff0000cca0d800 x24: 0000000000028000 x23: ffff0000cca0f000 x22: ffff0000cca0f0b8 x21: ffff0000f1811af0 x20: ffff0000f1811228 x19: dfff800000000000 x18: 1fffe00019941e0b x17: 000000000002bbcd x16: ffff8000803b9ea0 x15: 0000000000000001 x14: 1fffe00019941e01 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c252bd00 x7 : ffff800082662c48 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800080483764 x2 : 0000000000000001 x1 : 0000000000028000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0xaf8/0xe4c fs/btrfs/block-group.c:4475 (P) close_ctree+0x644/0xb60 fs/btrfs/disk-io.c:4458 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:1413 __cleanup_mnt+0x20/0x30 fs/namespace.c:1420 task_work_run+0x230/0x2e0 kernel/task_work.c:227 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: 281156 hardirqs last enabled at (281155): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (281156): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (280502): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (280502): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (280131): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop1): space_info DATA+METADATA has 2924544 free, is not full BTRFS info (device loop1): space_info total=3276800, used=135168, pinned=0, reserved=53248, 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: 6441 at fs/btrfs/block-group.c:4488 btrfs_free_block_groups+0xcfc/0xe4c fs/btrfs/block-group.c:4488 Modules linked in: CPU: 0 UID: 0 PID: 6441 Comm: syz-executor Tainted: G W 6.14.0-rc1-syzkaller-g2014c95afece #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0xcfc/0xe4c fs/btrfs/block-group.c:4488 lr : btrfs_free_block_groups+0xcfc/0xe4c fs/btrfs/block-group.c:4488 sp : ffff8000a5177940 x29: ffff8000a5177960 x28: dead000000000100 x27: 0000000000100000 x26: 1fffe0001e302245 x25: ffff0000cca0d800 x24: 000000000000d000 x23: ffff0000cca0f000 x22: ffff0000cca0f0b8 x21: ffff0000f1811af0 x20: ffff0000f1811228 x19: dfff800000000000 x18: 1fffe000366f1c86 x17: ffff80008fbcd000 x16: ffff800080469d6c x15: 0000000000000001 x14: 1fffe000366f46e0 x13: ffff8000a5178000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c252bd00 x7 : ffff8000803d5ea8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : 000000000000d000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0xcfc/0xe4c fs/btrfs/block-group.c:4488 (P) close_ctree+0x644/0xb60 fs/btrfs/disk-io.c:4458 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:1413 __cleanup_mnt+0x20/0x30 fs/namespace.c:1420 task_work_run+0x230/0x2e0 kernel/task_work.c:227 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: 281954 hardirqs last enabled at (281953): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1533 [inline] hardirqs last enabled at (281953): [] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5131 hardirqs last disabled at (281954): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (281910): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (281910): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (281803): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop1): space_info DATA+METADATA has 2924544 free, is not full BTRFS info (device loop1): space_info total=3276800, used=135168, pinned=0, reserved=53248, 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 (btrfs) ------------[ cut here ]------------ kernel BUG at fs/super.c:652! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 UID: 0 PID: 6441 Comm: syz-executor Tainted: G W 6.14.0-rc1-syzkaller-g2014c95afece #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 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 : ffff8000a5177ba0 x29: ffff8000a5177ba0 x28: 1fffe0001b0a778b x27: 0000000000000008 x26: 0000000000000003 x25: dfff800000000000 x24: 1fffe0001accecf0 x23: ffff80008bcdc260 x22: dfff800000000000 x21: 0000000000000000 x20: ffff800090305b40 x19: ffff0000d6676668 x18: 0000000000000008 x17: ffff80008fbcd000 x16: ffff8000832d977c x15: 0000000000000001 x14: 1ffff00014a2eed0 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 1cc9765649afed00 x8 : 1cc9765649afed00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000a5177378 x4 : ffff80008fcbefc0 x3 : ffff800083275f78 x2 : 0000000000000001 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:1413 __cleanup_mnt+0x20/0x30 fs/namespace.c:1420 task_work_run+0x230/0x2e0 kernel/task_work.c:227 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: 900564e0 91388000 aa1303e1 97cfda8d (d4210000) ---[ end trace 0000000000000000 ]---