------------[ cut here ]------------ WARNING: CPU: 0 PID: 23439 at fs/btrfs/block-group.c:3535 do_chunk_alloc+0x3b8/0x548 fs/btrfs/block-group.c:3535 Modules linked in: CPU: 0 PID: 23439 Comm: kworker/u4:7 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: events_unbound btrfs_async_reclaim_metadata_space pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : do_chunk_alloc+0x3b8/0x548 fs/btrfs/block-group.c:3535 lr : do_chunk_alloc+0x3b8/0x548 fs/btrfs/block-group.c:3535 sp : ffff8000263bbb50 x29: ffff8000263bbb50 x28: 0000000000000000 x27: ffff0001391fcf08 x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000005 x23: ffff000154de8000 x22: 0000000000000000 x21: ffff00011bf8f000 x20: ffffffffffffffe4 x19: ffff0001391fcf08 x18: 00000000000000c0 x17: ffff80000dda8198 x16: ffff80000dbe6158 x15: ffff0001595d3480 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0001595d3480 x11: ff808000081c4d64 x10: 0000000000000000 x9 : c8bf8c233794e300 x8 : c8bf8c233794e300 x7 : ffff80000c091ebc x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000026 Call trace: do_chunk_alloc+0x3b8/0x548 fs/btrfs/block-group.c:3535 btrfs_chunk_alloc+0x370/0x47c fs/btrfs/block-group.c:3777 flush_space+0x5f4/0x738 fs/btrfs/space-info.c:769 btrfs_async_reclaim_metadata_space+0x43c/0x4e0 fs/btrfs/space-info.c:1083 process_one_work+0x2d8/0x504 kernel/workqueue.c:2289 worker_thread+0x340/0x610 kernel/workqueue.c:2436 kthread+0x12c/0x158 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:863 irq event stamp: 18320744 hardirqs last enabled at (18320743): [<ffff8000081c3048>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:261 hardirqs last disabled at (18320744): [<ffff80000c084084>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (18320548): [<ffff80000bd0aa28>] spin_unlock_bh include/linux/spinlock.h:395 [inline] softirqs last enabled at (18320548): [<ffff80000bd0aa28>] ieee80211_ibss_work+0x184/0x9f0 net/mac80211/ibss.c:1701 softirqs last disabled at (18320546): [<ffff80000bd0a90c>] spin_lock_bh include/linux/spinlock.h:355 [inline] softirqs last disabled at (18320546): [<ffff80000bd0a90c>] ieee80211_ibss_work+0x68/0x9f0 net/mac80211/ibss.c:1690 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop2: state A): dumping space info: BTRFS info (device loop2: state A): space_info DATA+METADATA has 7737344 free, is not full BTRFS info (device loop2: state A): space_info total=11534336, used=61440, pinned=12288, reserved=0, may_use=2097152, readonly=1626112 zone_unusable=0 BTRFS info (device loop2: state A): space_info SYSTEM has 4091904 free, is not full BTRFS info (device loop2: state A): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=98304, readonly=0 zone_unusable=0 BTRFS info (device loop2: state A): global_block_rsv: size 917504 reserved 917504 BTRFS info (device loop2: state A): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop2: state A): chunk_block_rsv: size 98304 reserved 98304 BTRFS info (device loop2: state A): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop2: state A): delayed_refs_rsv: size 131072 reserved 131072 BTRFS: error (device loop2: state A) in do_chunk_alloc:3535: errno=-28 No space left BTRFS info (device loop2: state EA): forced readonly BTRFS: error (device loop2: state EA) in btrfs_create_pending_block_groups:2416: errno=-28 No space left