BTRFS info (device loop1): last unmount of filesystem 24c7a497-3402-47dd-bef8-82358f5f30e0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6416 at fs/btrfs/block-rsv.c:458 btrfs_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:458 Modules linked in: CPU: 1 UID: 0 PID: 6416 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_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:458 lr : btrfs_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:458 sp : ffff80009c127910 x29: ffff80009c127910 x28: dead000000000100 x27: 0000000000100000 x26: 0000000000000001 x25: ffff0000f8b46800 x24: 0000000000000000 x23: 1fffe0001f168d33 x22: ffff0000f9368180 x21: dfff800000000000 x20: 0000000000008000 x19: ffff0000f9368400 x18: 1fffe0001f168f0e x17: ffff80008f99d000 x16: ffff8000803b3884 x15: 0000000000000001 x14: 1fffe0001f168f01 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d92bbc80 x7 : ffff8000826265b0 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008047d328 x2 : 0000000000000001 x1 : 0000000000008000 x0 : 0000000000000000 Call trace: btrfs_release_global_block_rsv+0x218/0x22c fs/btrfs/block-rsv.c:458 (P) btrfs_free_block_groups+0xa88/0xe4c fs/btrfs/block-group.c:4472 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: 857478 hardirqs last enabled at (857477): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (857478): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (856840): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (856840): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (856779): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6416 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: 6416 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 : ffff80009c127940 x29: ffff80009c127960 x28: dead000000000100 x27: 0000000000100000 x26: 1fffe0001f26d239 x25: ffff0000f8b46800 x24: 0000000000008000 x23: ffff0000f8b47800 x22: ffff0000f8b478b8 x21: ffff0000f9369a90 x20: ffff0000f93691c8 x19: dfff800000000000 x18: 1fffe0001f168f0e x17: ffff80008f99d000 x16: ffff8000803b3884 x15: 0000000000000001 x14: 1fffe0001f168f01 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d92bbc80 x7 : ffff8000826265b0 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008047d328 x2 : 0000000000000001 x1 : 0000000000008000 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: 857654 hardirqs last enabled at (857653): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline] hardirqs last enabled at (857653): [] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95 hardirqs last disabled at (857654): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (857648): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (857648): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (857481): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop1): space_info DATA+METADATA has 3194880 free, is not full BTRFS info (device loop1): space_info total=3276800, used=49152, pinned=0, reserved=0, may_use=32768, 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 32768