syzbot

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WARNING: CPU: 1 PID: 4082 at fs/btrfs/block-group.c:3487 do_chunk_alloc fs/btrfs/block-group.c:3487 [inline]
WARNING: CPU: 1 PID: 4082 at fs/btrfs/block-group.c:3487 btrfs_chunk_alloc+0x8f8/0xcdc fs/btrfs/block-group.c:3710
Modules linked in:
CPU: 1 PID: 4082 Comm: kworker/u4:6 Not tainted 5.15.133-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
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:3487 [inline]
pc : btrfs_chunk_alloc+0x8f8/0xcdc fs/btrfs/block-group.c:3710
lr : do_chunk_alloc fs/btrfs/block-group.c:3487 [inline]
lr : btrfs_chunk_alloc+0x8f8/0xcdc fs/btrfs/block-group.c:3710
sp : ffff80001d4e6660
x29: ffff80001d4e66c0 x28: ffff0000dc7720b0 x27: 0000000000000005
x26: ffffffffffffffe4 x25: ffff0000dc7720fb x24: ffff0000eb9ec868
x23: 00000000ffffffe4 x22: 1fffe0001b8ee421 x21: ffff0000d7f8f000
x20: dfff800000000000 x19: ffff0000d24c1000 x18: 0000000000000001
x17: ff80800008334ddc x16: ffff800011963fa4 x15: ffff800008334ddc
x14: 00000000ffffffff x13: ffffffffffffffff x12: 0000000000000000
x11: ff8080000832c8d0 x10: 0000000000000000 x9 : b97dff3443db0c00
x8 : b97dff3443db0c00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001d4e5dd8 x4 : ffff8000149dfb80 x3 : ffff80000854d548
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026
Call trace:
 do_chunk_alloc fs/btrfs/block-group.c:3487 [inline]
 btrfs_chunk_alloc+0x8f8/0xcdc fs/btrfs/block-group.c:3710
 find_free_extent_update_loop fs/btrfs/extent-tree.c:4038 [inline]
 find_free_extent+0x324c/0x44e8 fs/btrfs/extent-tree.c:4401
 btrfs_reserve_extent+0x1b4/0x43c fs/btrfs/extent-tree.c:4482
 cow_file_range+0x4f0/0xb74 fs/btrfs/inode.c:1181
 btrfs_run_delalloc_range+0x314/0x12cc fs/btrfs/inode.c:2018
 writepage_delalloc+0x1d4/0x434 fs/btrfs/extent_io.c:3802
 __extent_writepage+0x624/0xcbc fs/btrfs/extent_io.c:4108
 extent_write_cache_pages fs/btrfs/extent_io.c:5030 [inline]
 extent_writepages+0x9b0/0x1268 fs/btrfs/extent_io.c:5157
 btrfs_writepages+0x28/0x38 fs/btrfs/inode.c:8575
 do_writepages+0x39c/0x5ec mm/page-writeback.c:2364
 filemap_fdatawrite_wbc+0x1c8/0x228 mm/filemap.c:400
 start_delalloc_inodes+0x630/0xa30 fs/btrfs/inode.c:10071
 btrfs_start_delalloc_roots+0x5e4/0x898 fs/btrfs/inode.c:10150
 shrink_delalloc fs/btrfs/space-info.c:538 [inline]
 flush_space+0x5b0/0xc94 fs/btrfs/space-info.c:646
 btrfs_async_reclaim_metadata_space+0x6c8/0x80c fs/btrfs/space-info.c:953
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:319
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
irq event stamp: 2553680
hardirqs last  enabled at (2553679): [<ffff80000832aa68>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257
hardirqs last disabled at (2553680): [<ffff80001195f638>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387
softirqs last  enabled at (2553448): [<ffff800011306480>] spin_unlock_bh include/linux/spinlock.h:408 [inline]
softirqs last  enabled at (2553448): [<ffff800011306480>] ieee80211_ibss_work+0x2d8/0x1230 net/mac80211/ibss.c:1706
softirqs last disabled at (2553446): [<ffff800011306280>] spin_lock_bh include/linux/spinlock.h:368 [inline]
softirqs last disabled at (2553446): [<ffff800011306280>] ieee80211_ibss_work+0xd8/0x1230 net/mac80211/ibss.c:1695
---[ end trace 4ed810988d23591d ]---
BTRFS: error (device loop0) in do_chunk_alloc:3487: errno=-28 No space left
BTRFS info (device loop0): forced readonly