BTRFS info (device loop3): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6549 at fs/btrfs/block-rsv.c:465 btrfs_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:465 Modules linked in: CPU: 1 UID: 0 PID: 6549 Comm: syz-executor Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : btrfs_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:465 lr : btrfs_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:465 sp : ffff8000a5827940 x29: ffff8000a5827940 x28: 1fffe0001b10a12c x27: dfff800000000000 x26: ffff0000de16f9c0 x25: 0000000000000001 x24: ffff0000d88509a8 x23: ffff0000d8850800 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000050000 x19: ffff0000cb6a0400 x18: 00000000ffffffff x17: ffff800093605000 x16: ffff8000805381bc x15: 0000000000000001 x14: 1fffe0001b10a004 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001b10a005 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000da635b80 x7 : ffff800082549af0 x6 : 0000000000000000 x5 : ffff80009382fcd8 x4 : 0000000000000008 x3 : ffff8000805382c4 x2 : 0000000000000001 x1 : 0000000000050000 x0 : 0000000000000000 Call trace: btrfs_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:465 (P) btrfs_free_block_groups+0xa4c/0xd10 fs/btrfs/block-group.c:4574 close_ctree+0x644/0x1130 fs/btrfs/disk-io.c:4424 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:643 kill_anon_super+0x4c/0x7c fs/super.c:1282 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2131 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1375 __cleanup_mnt+0x20/0x30 fs/namespace.c:1382 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xfc/0x168 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:103 [inline] el0_svc+0x170/0x254 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 186008 hardirqs last enabled at (186007): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (186008): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (185798): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (185798): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (185785): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6549 at fs/btrfs/block-rsv.c:466 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 Modules linked in: CPU: 0 UID: 0 PID: 6549 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 lr : btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 sp : ffff8000a5827940 x29: ffff8000a5827940 x28: 1fffe0001b10a12c x27: dfff800000000000 x26: ffff0000de16f9c0 x25: 0000000000000001 x24: ffff0000d88509a8 x23: ffff0000d8850800 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000050000 x19: 0000000000050000 x18: 00000000ffffffff x17: ffff800093605000 x16: ffff8000805381bc x15: 0000000000000001 x14: 1fffe0001b10a004 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001b10a005 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000da635b80 x7 : ffff800082549af0 x6 : 0000000000000000 x5 : ffff80009382fcd8 x4 : 0000000000000008 x3 : ffff8000805382c4 x2 : 0000000000000001 x1 : 0000000000050000 x0 : 0000000000000000 Call trace: btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 (P) btrfs_free_block_groups+0xa4c/0xd10 fs/btrfs/block-group.c:4574 close_ctree+0x644/0x1130 fs/btrfs/disk-io.c:4424 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:643 kill_anon_super+0x4c/0x7c fs/super.c:1282 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2131 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1375 __cleanup_mnt+0x20/0x30 fs/namespace.c:1382 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xfc/0x168 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:103 [inline] el0_svc+0x170/0x254 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 186268 hardirqs last enabled at (186267): [] irqentry_exit+0xd8/0x108 kernel/entry/common.c:214 hardirqs last disabled at (186268): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (186262): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (186262): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (186011): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6549 at fs/btrfs/block-group.c:4462 check_removing_space_info+0x10c/0x280 fs/btrfs/block-group.c:4463 Modules linked in: CPU: 0 UID: 0 PID: 6549 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : check_removing_space_info+0x10c/0x280 fs/btrfs/block-group.c:4463 lr : check_removing_space_info+0x260/0x280 fs/btrfs/block-group.c:4462 sp : ffff8000a5827930 x29: ffff8000a5827930 x28: 1fffe0001b10a12c x27: dfff800000000000 x26: ffff0000de16f9c0 x25: 0000000000000001 x24: 1fffe0001b10a002 x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000050000 x20: ffff0000cb6a0000 x19: ffff0000d8850000 x18: 00000000ffffffff x17: ffff800093605000 x16: ffff8000805381bc x15: 0000000000000001 x14: 1fffe0001b10a004 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001b10a005 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000da635b80 x7 : ffff800082549af0 x6 : 0000000000000000 x5 : ffff80009382fcd8 x4 : 0000000000000008 x3 : 0000000000000000 x2 : 0000000000000000 x1 : ffff0000d8850000 x0 : ffff0000cb6a0000 Call trace: check_removing_space_info+0x10c/0x280 fs/btrfs/block-group.c:4463 (P) btrfs_free_block_groups+0xa80/0xd10 fs/btrfs/block-group.c:4580 close_ctree+0x644/0x1130 fs/btrfs/disk-io.c:4424 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:643 kill_anon_super+0x4c/0x7c fs/super.c:1282 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2131 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1375 __cleanup_mnt+0x20/0x30 fs/namespace.c:1382 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xfc/0x168 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:103 [inline] el0_svc+0x170/0x254 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 186428 hardirqs last enabled at (186427): [] irqentry_exit+0xd8/0x108 kernel/entry/common.c:214 hardirqs last disabled at (186428): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (186422): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (186422): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (186271): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop3): space_info DATA+METADATA (sub-group id 0) has 11177984 free, is full BTRFS info (device loop3): space_info total=11534336, used=28672, pinned=0, reserved=0, may_use=327680, readonly=0 zone_unusable=0 BTRFS info (device loop3): global_block_rsv: size 0 reserved 0 BTRFS info (device loop3): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop3): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop3): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop3): delayed_refs_rsv: size 327680 reserved 327680