BTRFS info (device loop0): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6969 at fs/btrfs/block-rsv.c:454 btrfs_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:454 Modules linked in: CPU: 0 UID: 0 PID: 6969 Comm: syz.0.16 Not tainted 6.14.0-rc7-syzkaller-00196-g88d324e69ea9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:454 lr : btrfs_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:454 sp : ffff80009c0d7370 x29: ffff80009c0d7370 x28: dead000000000100 x27: 0000000000000002 x26: 0000000000000001 x25: ffff0000e9436800 x24: 0000000000000000 x23: 1fffe0001d286d33 x22: ffff0000ce798180 x21: dfff800000000000 x20: 0000000000010000 x19: ffff0000ce798400 x18: 1fffe0001d28600b x17: 000000000001f190 x16: ffff80008039dc94 x15: 0000000000000001 x14: 1fffe0001d286001 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000dc021e40 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff8000920a6698 x4 : 0000000000000008 x3 : ffff800080464820 x2 : 0000000000000001 x1 : 0000000000010000 x0 : 0000000000000000 Call trace: btrfs_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:454 (P) btrfs_free_block_groups+0xa88/0xe4c fs/btrfs/block-group.c:4464 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 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x4f8/0x1b54 kernel/exit.c:938 do_group_exit+0x194/0x22c kernel/exit.c:1087 get_signal+0x13e4/0x1500 kernel/signal.c:3036 do_signal+0x1a4/0x3a04 arch/arm64/kernel/signal.c:1658 do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148 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_da+0xbc/0x178 arch/arm64/kernel/entry-common.c:605 el0t_64_sync_handler+0xcc/0x108 arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 46450 hardirqs last enabled at (46449): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (46450): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (46316): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (46316): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (46253): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6969 at fs/btrfs/block-rsv.c:455 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:455 Modules linked in: CPU: 0 UID: 0 PID: 6969 Comm: syz.0.16 Tainted: G W 6.14.0-rc7-syzkaller-00196-g88d324e69ea9 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:455 lr : btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:455 sp : ffff80009c0d7370 x29: ffff80009c0d7370 x28: dead000000000100 x27: 0000000000000002 x26: 0000000000000001 x25: ffff0000e9436800 x24: 0000000000000000 x23: 1fffe0001d286d33 x22: ffff0000ce798180 x21: dfff800000000000 x20: 0000000000010000 x19: 0000000000010000 x18: 1fffe0001d28600b x17: 000000000001f190 x16: ffff80008039dc94 x15: 0000000000000001 x14: 1fffe0001d286001 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000dc021e40 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff8000920a6698 x4 : 0000000000000008 x3 : ffff800080464820 x2 : 0000000000000001 x1 : 0000000000010000 x0 : 0000000000000000 Call trace: btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:455 (P) btrfs_free_block_groups+0xa88/0xe4c fs/btrfs/block-group.c:4464 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 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x4f8/0x1b54 kernel/exit.c:938 do_group_exit+0x194/0x22c kernel/exit.c:1087 get_signal+0x13e4/0x1500 kernel/signal.c:3036 do_signal+0x1a4/0x3a04 arch/arm64/kernel/signal.c:1658 do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148 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_da+0xbc/0x178 arch/arm64/kernel/entry-common.c:605 el0t_64_sync_handler+0xcc/0x108 arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 46498 hardirqs last enabled at (46497): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline] hardirqs last enabled at (46497): [] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95 hardirqs last disabled at (46498): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (46492): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (46492): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (46453): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6969 at fs/btrfs/block-group.c:4476 btrfs_free_block_groups+0xaf8/0xe4c fs/btrfs/block-group.c:4475 Modules linked in: CPU: 0 UID: 0 PID: 6969 Comm: syz.0.16 Tainted: G W 6.14.0-rc7-syzkaller-00196-g88d324e69ea9 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 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 : ffff80009c0d73a0 x29: ffff80009c0d73c0 x28: dead000000000100 x27: 0000000000000002 x26: 1fffe00019cf3245 x25: ffff0000e9436800 x24: 0000000000010000 x23: ffff0000e9430000 x22: ffff0000e94300b8 x21: ffff0000ce799af0 x20: ffff0000ce799228 x19: dfff800000000000 x18: 1fffe0001d28600b x17: 000000000001f190 x16: ffff80008039dc94 x15: 0000000000000001 x14: 1fffe0001d286001 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000dc021e40 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff8000920a6698 x4 : 0000000000000008 x3 : ffff800080464820 x2 : 0000000000000001 x1 : 0000000000010000 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 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x4f8/0x1b54 kernel/exit.c:938 do_group_exit+0x194/0x22c kernel/exit.c:1087 get_signal+0x13e4/0x1500 kernel/signal.c:3036 do_signal+0x1a4/0x3a04 arch/arm64/kernel/signal.c:1658 do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148 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_da+0xbc/0x178 arch/arm64/kernel/entry-common.c:605 el0t_64_sync_handler+0xcc/0x108 arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 46662 hardirqs last enabled at (46661): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline] hardirqs last enabled at (46661): [] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95 hardirqs last disabled at (46662): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (46656): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (46656): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (46503): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop0): space_info DATA+METADATA has 11440128 free, is not full BTRFS info (device loop0): space_info total=11534336, used=28672, pinned=0, reserved=0, may_use=65536, 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 65536 reserved 65536