BTRFS error (device loop0 state A): Transaction aborted (error -12) BTRFS: error (device loop0 state A) in do_chunk_alloc:3953: errno=-12 Out of memory BTRFS info (device loop0 state EA): forced readonly ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5959 at fs/btrfs/space-info.h:255 btrfs_space_info_update_bytes_may_use+0x366/0x670 fs/btrfs/space-info.h:255 Modules linked in: CPU: 0 UID: 0 PID: 5959 Comm: syz.0.66 Not tainted 6.14.0-rc7-syzkaller-00074-ga7f2e10ecd8f #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:btrfs_space_info_update_bytes_may_use+0x366/0x670 fs/btrfs/space-info.h:255 Code: 00 00 74 08 4c 89 ff e8 88 c1 1b fe 49 8b 1f 48 89 df 48 8b 6c 24 20 48 89 ee e8 45 84 b4 fd 48 39 eb 73 1d e8 db 81 b4 fd 90 <0f> 0b 90 45 31 f6 43 80 7c 25 00 00 0f 85 2e ff ff ff e9 31 ff ff RSP: 0018:ffffc90002aff808 EFLAGS: 00010293 RAX: ffffffff840d5ea5 RBX: 0000000000017000 RCX: ffff88803f7e8000 RDX: 0000000000000000 RSI: 0000000000018000 RDI: 0000000000017000 RBP: 0000000000018000 R08: ffffffff840d5e9b R09: 1ffffffff2079f4e R10: dffffc0000000000 R11: fffffbfff2079f4f R12: dffffc0000000000 R13: 1ffff1100a423a0d R14: fffffffffffe8000 R15: ffff88805211d068 FS: 00007fc6573386c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f394b991fe0 CR3: 0000000055cf8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:287 [inline] block_rsv_release_bytes fs/btrfs/block-rsv.c:153 [inline] btrfs_block_rsv_release+0x4f8/0x610 fs/btrfs/block-rsv.c:292 btrfs_trans_release_chunk_metadata+0x7f/0xb0 fs/btrfs/transaction.c:253 do_chunk_alloc fs/btrfs/block-group.c:3957 [inline] btrfs_chunk_alloc+0xc98/0x10d0 fs/btrfs/block-group.c:4179 btrfs_inc_block_group_ro+0x401/0x700 fs/btrfs/block-group.c:3014 btrfs_relocate_block_group+0x440/0xd90 fs/btrfs/relocation.c:3963 btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3511 __btrfs_balance+0x1b0f/0x26b0 fs/btrfs/volumes.c:4292 btrfs_balance+0xbdc/0x10c0 fs/btrfs/volumes.c:4669 btrfs_ioctl_balance+0x3f5/0x660 fs/btrfs/ioctl.c:3587 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc65658d169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc657338038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fc6567a6080 RCX: 00007fc65658d169 RDX: 0000200000000180 RSI: 00000000c4009420 RDI: 0000000000000005 RBP: 00007fc657338090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 0000000000000000 R14: 00007fc6567a6080 R15: 00007ffddb2357a8