WARNING: CPU: 1 PID: 75398 at mm/page_alloc.c:3843 [dc966251]

[RAOF]

During runtime on kernel dc966251 I hit this (apparently harmless) kernel WARNING:

[ 3287.653263] ------------[ cut here ]------------
[ 3287.653325] WARNING: CPU: 1 PID: 75398 at mm/page_alloc.c:3843 rmqueue+0x96/0x1260
[ 3287.653384] Modules linked in: tls nft_masq nft_chain_nat bridge stp llc ebtable_filter ebtables ip6table_raw ip6table_mangle ip6table_nat ip6table_filter ip6_tables iptable_raw iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter bpfilter nf_tables vhost_vsock vmw_vsock_virtio_transport_common vhost vhost_iotlb vsock snd_seq_dummy snd_hrtimer nfnetlink overlay intel_rapl_msr intel_rapl_common intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 aesni_intel crypto_simd cryptd rapl amdgpu snd_soc_avs snd_soc_hda_codec snd_hda_ext_core snd_soc_core iommu_v2 drm_buddy gpu_sched snd_hda_codec_realtek kvm_intel snd_hda_codec_generic snd_compress nouveau snd_hda_codec_hdmi ac97_bus snd_pcm_dmaengine radeon snd_hda_intel snd_intel_dspcfg kvm snd_intel_sdw_acpi snd_hda_codec drm_ttm_helper snd_seq_midi ttm snd_seq_midi_event snd_hda_core binfmt_misc
[ 3287.653826]  drm_display_helper irqbypass snd_rawmidi snd_hwdep cec rc_core snd_pcm snd_seq mei_hdcp mei_pxp snd_seq_device drm_kms_helper i2c_algo_bit joydev syscopyarea snd_timer sysfillrect nls_iso8859_1 intel_cstate mxm_wmi eeepc_wmi snd ee1004 serio_raw wmi_bmof soundcore sysimgblt mei_me input_leds mei acpi_pad mac_hid msr parport_pc ppdev lp drm parport efi_pstore dmi_sysfs ip_tables x_tables autofs4 netconsole hid_logitech_hidpp hid_logitech_dj hid_generic usbhid hid nvme ahci crc32_pclmul psmouse nvme_core i2c_i801 e1000e libahci xhci_pci i2c_smbus nvme_common xhci_pci_renesas mfd_aaeon asus_wmi ledtrig_audio sparse_keymap platform_profile video wmi z3fold lz4
[ 3287.654354] CPU: 1 PID: 75398 Comm: ld.mold Tainted: G    B        L     6.2.8+bcachefs.git20230329.dc966251-1-debug #1
[ 3287.654410] Hardware name: System manufacturer System Product Name/Z170 PRO GAMING, BIOS 1904 07/05/2016
[ 3287.654463] RIP: 0010:rmqueue+0x96/0x1260
[ 3287.654517] Code: c7 00 f1 f1 f1 f1 c7 40 04 01 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 80 e5 80 74 0b 83 fa 01 0f 86 86 04 00 00 <0f> 0b 41 83 fe 09 0f 84 7a 04 00 00 41 83 fe 03 ba 01 00 00 00 44
[ 3287.654574] RSP: 0000:ffffc9001e95f128 EFLAGS: 00010202
[ 3287.654684] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000148040
[ 3287.654738] RDX: 0000000000000002 RSI: 1ffff92003d2be39 RDI: ffff888846fd5d80
[ 3287.654792] RBP: ffffc9001e95f250 R08: 0000000000000901 R09: 0000000000000000
[ 3287.654836] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888846fd5d80
[ 3287.654884] R13: ffff888846fd71c0 R14: 0000000000000002 R15: ffff888846fd5d80
[ 3287.654937] FS:  00007f6540414800(0000) GS:ffff8887e4c00000(0000) knlGS:0000000000000000
[ 3287.654992] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3287.655043] CR2: 00007f653c8f2007 CR3: 000000014127a004 CR4: 00000000003706e0
[ 3287.655097] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 3287.655147] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 3287.655201] Call Trace:
[ 3287.655250]  <TASK>
[ 3287.655298]  ? __kasan_slab_free+0x12/0x30
[ 3287.655354]  ? __kmem_cache_free+0x1c2/0x3c0
[ 3287.655411]  ? read_pages+0x15e/0x5b0
[ 3287.655466]  ? page_cache_ra_order+0x48e/0x500
[ 3287.655522]  ? do_sync_mmap_readahead+0x3f1/0x4d0
[ 3287.655578]  ? filemap_fault+0x642/0xbe0
[ 3287.655631]  ? bch2_page_fault+0x2c0/0x380
[ 3287.655688]  ? __do_fault+0x76/0x2a0
[ 3287.655741]  ? do_fault+0x235/0x300
[ 3287.655794]  ? handle_pte_fault+0x1d9/0x3d0
[ 3287.655848]  ? __handle_mm_fault+0x591/0x9d0
[ 3287.655904]  ? handle_mm_fault+0x1e6/0x5a0
[ 3287.655959]  ? do_user_addr_fault+0x28e/0x930
[ 3287.656014]  ? exc_page_fault+0x6e/0x140
[ 3287.656069]  ? asm_exc_page_fault+0x27/0x30
[ 3287.656130]  ? __pfx_rmqueue+0x10/0x10
[ 3287.656185]  ? __zone_watermark_ok+0x10f/0x270
[ 3287.656249]  get_page_from_freelist+0x162/0x710
[ 3287.656322]  _alloc_pages2+0x33e/0x550
[ 3287.656382]  ? __pfx__alloc_pages2+0x10/0x10
[ 3287.656455]  __kmalloc_large_node+0x8a/0x180
[ 3287.656517]  ? __bch2_folio_create+0x6e/0xe0
[ 3287.656573]  __kmalloc.cold+0xc/0xcb
[ 3287.656633]  __bch2_folio_create+0x6e/0xe0
[ 3287.656691]  bch2_readahead+0x2d9/0x7c0
[ 3287.656757]  ? __pfx_bch2_readahead+0x10/0x10
[ 3287.656817]  ? debug_smp_processor_id+0x17/0x30
[ 3287.656874]  ? consume_stock+0x23e/0x310
[ 3287.656934]  ? consume_stock+0x23e/0x310
[ 3287.657054]  read_pages+0x15e/0x5b0
[ 3287.657112]  ? lock_release+0x50/0x1b0
[ 3287.657165]  ? preempt_count_sub+0x18/0xd0
[ 3287.657225]  ? __pfx_read_pages+0x10/0x10
[ 3287.657291]  ? _folio_alloc+0x1d/0x60
[ 3287.657350]  page_cache_ra_order+0x48e/0x500
[ 3287.657405]  ? __pfx___up_read+0x10/0x10
[ 3287.657473]  do_sync_mmap_readahead+0x3f1/0x4d0
[ 3287.657534]  ? __pfx_do_sync_mmap_readahead+0x10/0x10
[ 3287.657598]  ? filemap_fault+0x622/0xbe0
[ 3287.657651]  ? debug_smp_processor_id+0x17/0x30
[ 3287.657710]  ? rcu_is_watching+0x41/0x90
[ 3287.657771]  filemap_fault+0x642/0xbe0
[ 3287.657826]  ? cgroup_rstat_updated+0x7f/0x260
[ 3287.657885]  ? __pfx_filemap_fault+0x10/0x10
[ 3287.657938]  ? __mod_lruvec_page_state+0x14d/0x330
[ 3287.657995]  ? debug_smp_processor_id+0x17/0x30
[ 3287.658051]  ? rcu_is_watching+0x41/0x90
[ 3287.658108]  ? lock_release+0x50/0x1b0
[ 3287.658170]  bch2_page_fault+0x2c0/0x380
[ 3287.658226]  ? mod_lruvec_page_state.constprop.0+0x65/0x90
[ 3287.658285]  __do_fault+0x76/0x2a0
[ 3287.658343]  do_fault+0x235/0x300
[ 3287.658402]  handle_pte_fault+0x1d9/0x3d0
[ 3287.658463]  __handle_mm_fault+0x591/0x9d0
[ 3287.658527]  ? __pfx___handle_mm_fault+0x10/0x10
[ 3287.658583]  ? __pfx_mt_find+0x10/0x10
[ 3287.658670]  ? _copy_to_user+0x81/0xb0
[ 3287.658740]  ? handle_mm_fault+0xe8/0x5a0
[ 3287.658796]  ? debug_smp_processor_id+0x17/0x30
[ 3287.658853]  ? rcu_is_watching+0x41/0x90
[ 3287.658914]  handle_mm_fault+0x1e6/0x5a0
[ 3287.658977]  do_user_addr_fault+0x28e/0x930
[ 3287.659043]  exc_page_fault+0x6e/0x140
[ 3287.659101]  asm_exc_page_fault+0x27/0x30
[ 3287.659158] RIP: 0033:0x5597e7cb6efc
[ 3287.659211] Code: 1e fa 41 55 66 0f ef c0 49 89 f5 41 54 55 53 48 83 ec 08 0f b7 05 f8 3c 7f 00 48 8b 6f 30 bf 3e 00 00 00 48 03 ae 40 0d 00 00 <0f> 11 45 07 0f 11 45 17 0f 11 45 27 c7 45 00 7f 45 4c 46 66 89 45
[ 3287.659272] RSP: 002b:00007ffc642ccc90 EFLAGS: 00010206
[ 3287.659330] RAX: 0000000000000102 RBX: 0000000000000000 RCX: 00000200000d3100
[ 3287.659383] RDX: 00007ffc642ccc28 RSI: 00007ffc642cd9f0 RDI: 000000000000003e
[ 3287.659437] RBP: 00007f653c8f2000 R08: 00007ffc642ce480 R09: 0000000000000004
[ 3287.659490] R10: 00007ffc642ce478 R11: 0000000000000206 R12: 00007ffc642cd220
[ 3287.659544] R13: 00007ffc642cd9f0 R14: 00007ffc642ccda0 R15: 0000020000150a80
[ 3287.659617]  </TASK>
[ 3287.659667] irq event stamp: 0
[ 3287.659718] hardirqs last  enabled at (0): [<0000000000000000>] 0x0
[ 3287.659770] hardirqs last disabled at (0): [<ffffffff8ab5adab>] copy_process+0xd2b/0x2b40
[ 3287.659829] softirqs last  enabled at (0): [<ffffffff8ab5adab>] copy_process+0xd2b/0x2b40
[ 3287.659887] softirqs last disabled at (0): [<0000000000000000>] 0x0
[ 3287.659940] ---[ end trace 0000000000000000 ]---