BTRFS error (device loop1: state MC): unrecognized mount option '/proc/self' BTRFS warning (device loop1: state MC): Skipping commit of aborted transaction. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6128 at fs/btrfs/transaction.c:1996 cleanup_transaction+0x674/0x770 fs/btrfs/transaction.c:1996 Modules linked in: CPU: 1 PID: 6128 Comm: syz.1.403 Not tainted 6.1.146-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : cleanup_transaction+0x674/0x770 fs/btrfs/transaction.c:1996 lr : cleanup_transaction+0x674/0x770 fs/btrfs/transaction.c:1996 sp : ffff800022407540 x29: ffff800022407620 x28: dfff800000000000 x27: ffff700004480eb0 x26: 0000000000000046 x25: 0000000000000000 x24: ffff0000e210e248 x23: 00000000ffffffe4 x22: 1fffe0001c421c49 x21: ffff0000c45c2000 x20: ffff0000d8b84000 x19: ffff0000e210e1f8 x18: ffff800011aabce0 x17: 0000000000000000 x16: ffff8000082d2400 x15: 0000000000000002 x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000080000 x11: 000000000002945a x10: ffff80002170b000 x9 : a4813488b92a0000 x8 : a4813488b92a0000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800022406fd8 x4 : ffff800015194800 x3 : ffff80000852e350 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: cleanup_transaction+0x674/0x770 fs/btrfs/transaction.c:1996 btrfs_commit_transaction+0x20b8/0x29f0 fs/btrfs/transaction.c:2582 btrfs_set_free_space_cache_v1_active+0x7c/0x258 fs/btrfs/free-space-cache.c:4134 btrfs_remount_cleanup fs/btrfs/super.c:1992 [inline] btrfs_remount+0x5b8/0x1148 fs/btrfs/super.c:2182 legacy_reconfigure+0xf8/0x110 fs/fs_context.c:655 reconfigure_super+0x1d4/0x79c fs/super.c:977 do_remount fs/namespace.c:2714 [inline] path_mount+0xbd4/0xe78 fs/namespace.c:3380 do_mount fs/namespace.c:3401 [inline] __do_sys_mount fs/namespace.c:3609 [inline] __se_sys_mount fs/namespace.c:3586 [inline] __arm64_sys_mount+0x49c/0x584 fs/namespace.c:3586 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 76248 hardirqs last enabled at (76247): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261 hardirqs last disabled at (76248): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (75976): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (75976): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (75805): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop1: state MAC): dumping space info: BTRFS info (device loop1: state MAC): space_info DATA+METADATA has -917504 free, is full BTRFS info (device loop1: state MAC): space_info total=3276800, used=3276800, pinned=0, reserved=0, may_use=917504, readonly=0 zone_unusable=0 BTRFS info (device loop1: state MAC): space_info SYSTEM has 8253440 free, is not full BTRFS info (device loop1: state MAC): space_info total=12451840, used=4194304, pinned=0, reserved=4096, may_use=0, readonly=0 zone_unusable=0 BTRFS info (device loop1: state MAC): global_block_rsv: size 917504 reserved 917504 BTRFS info (device loop1: state MAC): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop1: state MAC): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop1: state MAC): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop1: state MAC): delayed_refs_rsv: size 131072 reserved 0 BTRFS: error (device loop1: state MAC) in cleanup_transaction:1996: errno=-28 No space left