BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6665 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: 6665 Comm: syz-executor Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe00018fa7e2c x27: dfff800000000000 x26: ffff0000c7d3f058 x25: 0000000000000001 x24: ffff0000c7d3f1a8 x23: ffff0000c7d3f000 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 00000000ffffffff x17: ffff800093303000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe00018fa7404 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600018fa7405 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : ffff8000934cf198 x4 : 0000000000000008 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 164252 hardirqs last enabled at (164251): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (164252): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (162262): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (162260): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6665 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: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe0001994192c x27: dfff800000000000 x26: ffff0000cca0c858 x25: 0000000000000001 x24: ffff0000cca0c9a8 x23: ffff0000cca0c800 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337db690 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe00019941c04 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600019941c05 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 375864 hardirqs last enabled at (375863): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (375864): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (374032): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (374030): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6665 at fs/btrfs/block-rsv.c:466 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 Modules linked in: CPU: 1 UID: 0 PID: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe00018e2882c x27: dfff800000000000 x26: ffff0000c7144058 x25: 0000000000000001 x24: ffff0000c71441a8 x23: ffff0000c7144000 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337dfe90 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe00018e28704 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600018e28705 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 404564 hardirqs last enabled at (404563): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (404564): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (402938): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (402938): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (401437): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6665 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: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe0001a7d202c x27: dfff800000000000 x26: ffff0000d3e90058 x25: 0000000000000001 x24: ffff0000d3e901a8 x23: ffff0000d3e90000 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 00000000ffffffff x17: ffff800093303000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe0001a7d2104 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001a7d2105 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 432284 hardirqs last enabled at (432283): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (432284): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (429974): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (429972): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6665 at fs/btrfs/block-rsv.c:466 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 Modules linked in: CPU: 1 UID: 0 PID: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe0001aa09b2c x27: dfff800000000000 x26: ffff0000d504d858 x25: 0000000000000001 x24: ffff0000d504d9a8 x23: ffff0000d504d800 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337dfe90 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe0001aa09a04 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001aa09a05 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 484232 hardirqs last enabled at (484231): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (484232): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (483014): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (483014): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (483007): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6665 at fs/btrfs/block-rsv.c:466 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 Modules linked in: CPU: 1 UID: 0 PID: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe00019fc5c2c x27: dfff800000000000 x26: ffff0000cfe2e058 x25: 0000000000000001 x24: ffff0000cfe2e1a8 x23: ffff0000cfe2e000 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337dfe90 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe00019fc5d04 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600019fc5d05 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 643628 hardirqs last enabled at (643627): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (643628): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (641516): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (641514): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6665 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: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe0001a3a492c x27: dfff800000000000 x26: ffff0000d1d24858 x25: 0000000000000001 x24: ffff0000d1d249a8 x23: ffff0000d1d24800 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337db690 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe0001a3a4d04 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001a3a4d05 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 697498 hardirqs last enabled at (697497): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (697498): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (696780): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (696780): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (696769): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6665 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: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe0001a385e2c x27: dfff800000000000 x26: ffff0000d1c2f058 x25: 0000000000000001 x24: ffff0000d1c2f1a8 x23: ffff0000d1c2f000 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 00000000ffffffff x17: ffff800093303000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe0001a385c04 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001a385c05 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 750496 hardirqs last enabled at (750495): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (750496): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (749976): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (749976): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (749937): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6665 at fs/btrfs/block-rsv.c:466 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 Modules linked in: CPU: 1 UID: 0 PID: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe00018e3d52c x27: dfff800000000000 x26: ffff0000c71ea858 x25: 0000000000000001 x24: ffff0000c71ea9a8 x23: ffff0000c71ea800 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337dfe90 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe00018e3d804 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600018e3d805 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 780528 hardirqs last enabled at (780527): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (780528): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (778232): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (778230): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop0 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6665 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: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe0001aa0482c x27: dfff800000000000 x26: ffff0000d5024058 x25: 0000000000000001 x24: ffff0000d50241a8 x23: ffff0000d5024000 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337db690 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe0001aa04704 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001aa04705 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 858066 hardirqs last enabled at (858065): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (858066): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (856730): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (856730): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (856623): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6665 at fs/btrfs/block-rsv.c:466 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 Modules linked in: CPU: 1 UID: 0 PID: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe0001b2cb32c x27: dfff800000000000 x26: ffff0000d9659858 x25: 0000000000000001 x24: ffff0000d96599a8 x23: ffff0000d9659800 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337dfe90 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe0001b2cb204 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001b2cb205 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 910460 hardirqs last enabled at (910459): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (910460): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (909072): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (909072): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (909053): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6665 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: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe000198e5a2c x27: dfff800000000000 x26: ffff0000cc72d058 x25: 0000000000000001 x24: ffff0000cc72d1a8 x23: ffff0000cc72d000 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337db690 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe0001a69c104 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001a69c105 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 936374 hardirqs last enabled at (936373): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (936374): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (935738): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (935738): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (935727): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6665 at fs/btrfs/block-rsv.c:466 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 Modules linked in: CPU: 1 UID: 0 PID: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe0001b63922c x27: dfff800000000000 x26: ffff0000db1c9058 x25: 0000000000000001 x24: ffff0000db1c91a8 x23: ffff0000db1c9000 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337dfe90 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe0001b639e04 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001b639e05 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 962664 hardirqs last enabled at (962663): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (962664): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (960916): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (960914): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6665 at fs/btrfs/block-rsv.c:466 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 Modules linked in: CPU: 1 UID: 0 PID: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe0001967862c x27: dfff800000000000 x26: ffff0000cb3c3058 x25: 0000000000000001 x24: ffff0000cb3c31a8 x23: ffff0000cb3c3000 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337dfe90 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe00019678f04 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600019678f05 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 989218 hardirqs last enabled at (989217): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (989218): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (989012): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (989012): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (989001): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6665 at fs/btrfs/block-rsv.c:466 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 Modules linked in: CPU: 1 UID: 0 PID: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe0001e3b6f2c x27: dfff800000000000 x26: ffff0000f1db7858 x25: 0000000000000001 x24: ffff0000f1db79a8 x23: ffff0000f1db7800 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337dfe90 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe0001e3b6004 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001e3b6005 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 1015312 hardirqs last enabled at (1015311): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (1015312): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (1013702): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1013700): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6665 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: 6665 Comm: syz-executor Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff8000a27a7940 x29: ffff8000a27a7940 x28: 1fffe0001a292c2c x27: dfff800000000000 x26: ffff0000d1496058 x25: 0000000000000001 x24: ffff0000d14961a8 x23: ffff0000d1496000 x22: 0000000000000000 x21: dfff800000000000 x20: 0000000000000000 x19: 0000000000030000 x18: 1fffe000337db690 x17: ffff80008f57e000 x16: ffff80008053739c x15: 0000000000000001 x14: 1fffe0001a292f04 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001a292f05 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb6c3d80 x7 : ffff800082596180 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805374a4 x2 : 0000000000000001 x1 : 0000000000030000 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+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1281 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1327 __cleanup_mnt+0x20/0x30 fs/namespace.c:1334 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/0x178 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:747 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 1119524 hardirqs last enabled at (1119523): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (1119524): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (1117742): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1117740): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---