------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 1 PID: 7272 at fs/btrfs/block-group.c:3945 do_chunk_alloc fs/btrfs/block-group.c:3945 [inline] WARNING: CPU: 1 PID: 7272 at fs/btrfs/block-group.c:3945 btrfs_chunk_alloc+0xe1c/0xf8c fs/btrfs/block-group.c:4187 Modules linked in: CPU: 1 UID: 0 PID: 7272 Comm: kworker/u8:12 Not tainted 6.12.0-rc5-syzkaller-g1bf329c696cf #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_unbound btrfs_async_reclaim_metadata_space pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : do_chunk_alloc fs/btrfs/block-group.c:3945 [inline] pc : btrfs_chunk_alloc+0xe1c/0xf8c fs/btrfs/block-group.c:4187 lr : do_chunk_alloc fs/btrfs/block-group.c:3945 [inline] lr : btrfs_chunk_alloc+0xe1c/0xf8c fs/btrfs/block-group.c:4187 sp : ffff80009cea7780 x29: ffff80009cea7800 x28: ffff0000cde72800 x27: 1fffe0001b608e0b x26: ffff0000db04705b x25: ffff0000db047000 x24: ffffffffffffffe4 x23: 0000000000000002 x22: 0000000000000000 x21: ffff0000cc940008 x20: dfff800000000000 x19: 0000000000000000 x18: 1fffe000194e6136 x17: 00000000000309ea x16: ffff80008035bf2c x15: 0000000000000001 x14: 1fffe000366ce320 x13: ffff80009cea8000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000000003 x9 : b1285aa02b2b2600 x8 : b1285aa02b2b2600 x7 : ffff8000802ca464 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff80008b615100 x0 : ffff800123f0d000 Call trace: do_chunk_alloc fs/btrfs/block-group.c:3945 [inline] (P) btrfs_chunk_alloc+0xe1c/0xf8c fs/btrfs/block-group.c:4187 (P) do_chunk_alloc fs/btrfs/block-group.c:3945 [inline] (L) btrfs_chunk_alloc+0xe1c/0xf8c fs/btrfs/block-group.c:4187 (L) flush_space+0x430/0xc50 fs/btrfs/space-info.c:808 btrfs_async_reclaim_metadata_space+0x5d4/0x71c fs/btrfs/space-info.c:1105 process_one_work+0x7bc/0x1600 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3391 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 irq event stamp: 706816 hardirqs last enabled at (706815): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1517 [inline] hardirqs last enabled at (706815): [] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5082 hardirqs last disabled at (706816): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (706794): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (706794): [] handle_softirqs+0xa38/0xbf8 kernel/softirq.c:582 softirqs last disabled at (706375): [] __do_softirq+0x14/0x20 kernel/softirq.c:588 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop4 state A): dumping space info: BTRFS info (device loop4 state A): space_info DATA+METADATA has 5726208 free, is not full BTRFS info (device loop4 state A): space_info total=11534336, used=122880, pinned=0, reserved=0, may_use=5685248, readonly=0 zone_unusable=0 BTRFS info (device loop4 state A): space_info SYSTEM has -98304 free, is not full BTRFS info (device loop4 state A): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=98304, readonly=4190208 zone_unusable=0 BTRFS info (device loop4 state A): global_block_rsv: size 1441792 reserved 1441792 BTRFS info (device loop4 state A): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop4 state A): chunk_block_rsv: size 98304 reserved 98304 BTRFS info (device loop4 state A): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop4 state A): delayed_refs_rsv: size 65536 reserved 0 BTRFS: error (device loop4 state A) in do_chunk_alloc:3945: errno=-28 No space left BTRFS info (device loop4 state EA): forced readonly BTRFS: error (device loop4 state EA) in btrfs_create_pending_block_groups:2759: errno=-28 No space left