loop0: detected capacity change from 0 to 4096 NILFS (loop0): mounting unchecked fs NILFS (loop0): recovery required for readonly filesystem NILFS (loop0): write access will be enabled during recovery NILFS (loop0): invalid segment: Inconsistency found NILFS (loop0): trying rollback from an earlier position NILFS (loop0): invalid segment: Checksum error in segment payload NILFS (loop0): error -22 while searching super root loop0: detected capacity change from 0 to 262144 BTRFS: device fsid 7e32c2af-f87a-45a1-bcba-64dea7c56a53 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5325) BTRFS info (device loop0): first mount of filesystem 7e32c2af-f87a-45a1-bcba-64dea7c56a53 BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm BTRFS info (device loop0): using free-space-tree BTRFS info (device loop0): checking UUID tree BTRFS info (device loop0): balance: start -d -m -s BTRFS info (device loop0): relocating block group 30408704 flags metadata|dup BTRFS info (device loop0): found 3 extents, stage: move data extents BTRFS info (device loop0): relocating block group 22020096 flags system|dup BTRFS info (device loop0): found 1 extents, stage: move data extents ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5325 at fs/btrfs/relocation.c:4045 btrfs_relocate_block_group+0xccd/0xd90 fs/btrfs/relocation.c:4045 Modules linked in: CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted 6.14.0-rc1-syzkaller #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_relocate_block_group+0xccd/0xd90 fs/btrfs/relocation.c:4045 Code: 4d 8c e8 16 69 34 fd e9 31 ff ff ff e8 3c 0c cc fd e9 77 fe ff ff e8 32 0c cc fd 90 0f 0b 90 e9 8c fd ff ff e8 24 0c cc fd 90 <0f> 0b 90 e9 de fd ff ff e8 16 0c cc fd 90 0f 0b 90 e9 30 fe ff ff RSP: 0018:ffffc9000d39fa10 EFLAGS: 00010283 RAX: ffffffff83f34f3c RBX: 0000000000004000 RCX: 0000000000100000 RDX: ffffc9000ee32000 RSI: 0000000000074357 RDI: 0000000000074358 RBP: ffff888011aaf868 R08: ffffffff83f34d15 R09: 1ffff92001a73f30 R10: dffffc0000000000 R11: fffff52001a73f31 R12: 1ffff11000116200 R13: 0000000000000000 R14: ffff888042d24000 R15: ffff888042d24010 FS: 00007f04f2c976c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f01e4ec2723 CR3: 00000000127c2000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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: 0033:0x7f04f1d8cda9 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:00007f04f2c97038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f04f1fa5fa0 RCX: 00007f04f1d8cda9 RDX: 0000000020000180 RSI: 00000000c4009420 RDI: 0000000000000007 RBP: 00007f04f1e0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f04f1fa5fa0 R15: 00007ffcc8a89d78