subvolume 1 is not set as snapshot but is not master subvolume, fixing done bcachefs (loop0): check_subvol_children... done bcachefs (loop0): delete_dead_snapshots... done bcachefs (loop0): check_inodes... done bcachefs (loop0): check_extents... done bcachefs (loop0): check_indirect_extents... done bcachefs (loop0): check_dirents... done bcachefs (loop0): check_xattrs... done bcachefs (loop0): check_root... done bcachefs (loop0): check_unreachable_inodes... done bcachefs (loop0): check_subvolume_structure... done bcachefs (loop0): check_directory_structure... done bcachefs (loop0): check_nlinks... done bcachefs (loop0): resume_logged_ops... done bcachefs (loop0): delete_dead_inodes... done bcachefs (loop0): set_fs_needs_rebalance... done bcachefs (loop0): Fixed errors, running fsck a second time to verify fs is clean bcachefs (loop0): check_alloc_info... done bcachefs (loop0): check_lrus... done bcachefs (loop0): check_btree_backpointers... done bcachefs (loop0): check_backpointers_to_extents... done bcachefs (loop0): check_extents_to_backpointers... bcachefs (loop0): scanning for missing backpointers in 1/128 buckets done bcachefs (loop0): check_alloc_to_lru_refs... done bcachefs (loop0): bucket_gens_init... done bcachefs (loop0): reconstruct_snapshots... done bcachefs (loop0): check_snapshot_trees... done bcachefs (loop0): check_snapshots... done bcachefs (loop0): check_subvols... done bcachefs (loop0): check_subvol_children... done bcachefs (loop0): delete_dead_snapshots... done bcachefs (loop0): check_inodes... done bcachefs (loop0): check_extents... done bcachefs (loop0): check_indirect_extents... done bcachefs (loop0): check_dirents... done bcachefs (loop0): check_xattrs... done bcachefs (loop0): check_root... done bcachefs (loop0): check_unreachable_inodes... done bcachefs (loop0): check_subvolume_structure... done bcachefs (loop0): check_directory_structure... done bcachefs (loop0): check_nlinks... done bcachefs (loop0): resume_logged_ops... done bcachefs (loop0): delete_dead_inodes... done bcachefs (loop0): set_fs_needs_rebalance... done bcachefs (loop0): reading quotas bcachefs (loop0): quotas done bcachefs (loop0): done starting filesystem ------------[ cut here ]------------ kernel BUG at fs/bcachefs/quota.c:319! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-09760-g69e858e0b8b2 #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:__bch2_quota_transfer fs/bcachefs/quota.c:319 [inline] RIP: 0010:bch2_quota_transfer+0xaba/0xad0 fs/bcachefs/quota.c:367 Code: 48 c7 c7 50 1b f7 8e 4c 89 e6 e8 91 cc b1 00 e9 c8 fd ff ff e8 e7 7a 50 fd 90 0f 0b e8 df 7a 50 fd 90 0f 0b e8 d7 7a 50 fd 90 <0f> 0b e8 cf 7a 50 fd 90 0f 0b e8 67 66 86 07 0f 1f 80 00 00 00 00 RSP: 0018:ffffc9000d4af6c0 EFLAGS: 00010283 RAX: ffffffff846ef1e9 RBX: ffff88805240f140 RCX: 0000000000100000 RDX: ffffc9000ea22000 RSI: 0000000000000928 RDI: 0000000000000929 RBP: ffffc9000d4af868 R08: ffffffff846eeeb9 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff203680f R12: 0000000000000001 R13: 0000000000000000 R14: 1ffff1100a481d05 R15: ffff88805240e828 FS: 00007f3774ba76c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563ad8eaf038 CR3: 0000000033206000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> bch2_fs_quota_transfer+0x282/0x4d0 fs/bcachefs/fs.c:160 bch2_setattr_nonsize+0x3c1/0x12a0 fs/bcachefs/fs.c:1080 notify_change+0xbca/0xe90 fs/attr.c:552 chown_common+0x501/0x850 fs/open.c:782 vfs_fchown fs/open.c:850 [inline] ksys_fchown+0xe2/0x150 fs/open.c:862 __do_sys_fchown fs/open.c:867 [inline] __se_sys_fchown fs/open.c:865 [inline] __x64_sys_fchown+0x7a/0x90 fs/open.c:865 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: 0033:0x7f3773d8cda9 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:00007f3774ba7038 EFLAGS: 00000246 ORIG_RAX: 000000000000005d RAX: ffffffffffffffda RBX: 00007f3773fa5fa0 RCX: 00007f3773d8cda9 RDX: 000000000000000a RSI: 000000003a736e6f RDI: 0000000000000005 RBP: 00007f3773e0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3773fa5fa0 R15: 00007fff4bfd6178 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__bch2_quota_transfer fs/bcachefs/quota.c:319 [inline] RIP: 0010:bch2_quota_transfer+0xaba/0xad0 fs/bcachefs/quota.c:367 Code: 48 c7 c7 50 1b f7 8e 4c 89 e6 e8 91 cc b1 00 e9 c8 fd ff ff e8 e7 7a 50 fd 90 0f 0b e8 df 7a 50 fd 90 0f 0b e8 d7 7a 50 fd 90 <0f> 0b e8 cf 7a 50 fd 90 0f 0b e8 67 66 86 07 0f 1f 80 00 00 00 00 RSP: 0018:ffffc9000d4af6c0 EFLAGS: 00010283 RAX: ffffffff846ef1e9 RBX: ffff88805240f140 RCX: 0000000000100000 RDX: ffffc9000ea22000 RSI: 0000000000000928 RDI: 0000000000000929 RBP: ffffc9000d4af868 R08: ffffffff846eeeb9 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff203680f R12: 0000000000000001 R13: 0000000000000000 R14: 1ffff1100a481d05 R15: ffff88805240e828 FS: 00007f3774ba76c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3774b84fb8 CR3: 0000000033206000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400