------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 1 PID: 602 at fs/btrfs/block-group.c:3990 do_chunk_alloc fs/btrfs/block-group.c:3990 [inline] WARNING: CPU: 1 PID: 602 at fs/btrfs/block-group.c:3990 btrfs_chunk_alloc+0xf58/0x1220 fs/btrfs/block-group.c:4231 Modules linked in: CPU: 1 UID: 0 PID: 602 Comm: kworker/u8:5 Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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:3990 [inline] pc : btrfs_chunk_alloc+0xf58/0x1220 fs/btrfs/block-group.c:4231 lr : do_chunk_alloc fs/btrfs/block-group.c:3990 [inline] lr : btrfs_chunk_alloc+0xf58/0x1220 fs/btrfs/block-group.c:4231 sp : ffff80009d1277c0 x29: ffff80009d127820 x28: ffff0000d61ac800 x27: ffffffffffffffe4 x26: 0000000000000001 x25: ffff0000f60480b4 x24: ffff0000c15ae378 x23: dfff800000000000 x22: ffff0000f9020000 x21: 0000000000000000 x20: 0000000000000000 x19: ffff0000f6048000 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008ae69508 x15: ffff700011ee0158 x14: 1ffff00011ee0158 x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700011ee0158 x10: 0000000000ff0100 x9 : 6c8169e454e2ba00 x8 : 6c8169e454e2ba00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009d127118 x4 : ffff80008f776bc0 x3 : ffff80008054bdfc x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: do_chunk_alloc fs/btrfs/block-group.c:3990 [inline] (P) btrfs_chunk_alloc+0xf58/0x1220 fs/btrfs/block-group.c:4231 (P) flush_space+0x2f0/0xb68 fs/btrfs/space-info.c:861 do_async_reclaim_metadata_space+0x110/0x364 fs/btrfs/space-info.c:1158 btrfs_async_reclaim_metadata_space+0x90/0xd8 fs/btrfs/space-info.c:1226 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3402 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 irq event stamp: 1771864 hardirqs last enabled at (1771863): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (1771863): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (1771864): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (1768950): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (1768950): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline] softirqs last enabled at (1768950): [] nsim_dev_trap_report_work+0x67c/0x9fc drivers/net/netdevsim/dev.c:851 softirqs last disabled at (1768948): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (1768948): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:816 [inline] softirqs last disabled at (1768948): [] nsim_dev_trap_report_work+0x5f4/0x9fc drivers/net/netdevsim/dev.c:851 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop3 state A): dumping space info: BTRFS info (device loop3 state A): space_info DATA+METADATA (sub-group id 0) has 94208 free, is not full BTRFS info (device loop3 state A): space_info total=11534336, used=57344, pinned=20480, reserved=1495040, may_use=9867264, readonly=0 zone_unusable=0 BTRFS info (device loop3 state A): space_info SYSTEM (sub-group id 0) has -98304 free, is not full BTRFS info (device loop3 state A): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=98304, readonly=4190208 zone_unusable=0 BTRFS info (device loop3 state A): global_block_rsv: size 1441792 reserved 1441792 BTRFS info (device loop3 state A): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop3 state A): chunk_block_rsv: size 98304 reserved 98304 BTRFS info (device loop3 state A): delayed_block_rsv: size 32768 reserved 32768 BTRFS info (device loop3 state A): delayed_refs_rsv: size 262144 reserved 196608 BTRFS: error (device loop3 state A) in do_chunk_alloc:3990: errno=-28 No space left BTRFS info (device loop3 state EA): forced readonly BTRFS: error (device loop3 state EA) in btrfs_create_pending_block_groups:2788: errno=-28 No space left