loop0: detected capacity change from 0 to 32768 BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5327) BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm BTRFS info (device loop0): rebuilding free space tree BTRFS info (device loop0): disabling free space tree BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) BTRFS info (device loop0): balance: start -d -m BTRFS info (device loop0): relocating block group 8519680 flags data|metadata BTRFS info (device loop0): relocating block group 6881280 flags data|metadata ------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 0 PID: 5327 at fs/btrfs/volumes.c:3426 btrfs_remove_chunk+0x19ce/0x1cb0 fs/btrfs/volumes.c:3426 Modules linked in: CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted 6.15.0-rc2-syzkaller-00042-g1a1d569a75f3 #0 PREEMPT(full) 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_remove_chunk+0x19ce/0x1cb0 fs/btrfs/volumes.c:3426 Code: 48 8b 38 48 c7 c6 40 c9 8d 8c 44 89 e2 e8 7a 3b 29 fd eb 1a e8 c3 c6 c4 fd 90 48 c7 c7 e0 c8 8d 8c 44 89 e6 e8 33 e8 83 fd 90 <0f> 0b 90 90 49 bf 00 00 00 00 00 fc ff df 4c 8b 6c 24 10 e9 7e f9 RSP: 0018:ffffc9000d1778e0 EFLAGS: 00010246 RAX: eec41da306111f00 RBX: ffff888054c78001 RCX: ffff88800027a440 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000d177ad0 R08: ffffffff81827952 R09: 1ffff11003f847d2 R10: dffffc0000000000 R11: ffffed1003f847d3 R12: ffffffffffffffe4 R13: ffff8880364e3200 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f1cc4b166c0(0000) GS:ffff88808c593000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558422892658 CR3: 0000000043912000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_relocate_chunk+0x292/0x3b0 fs/btrfs/volumes.c:3556 __btrfs_balance+0x1a93/0x25e0 fs/btrfs/volumes.c:4292 btrfs_balance+0xbde/0x10c0 fs/btrfs/volumes.c:4669 btrfs_ioctl_balance+0x3f5/0x660 fs/btrfs/ioctl.c:3586 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1cc3d8e169 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:00007f1cc4b16038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f1cc3fb5fa0 RCX: 00007f1cc3d8e169 RDX: 0000200000000180 RSI: 00000000c4009420 RDI: 0000000000000004 RBP: 00007f1cc3e10a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1cc3fb5fa0 R15: 00007ffeed17ef28