This evening, while I was using Firefox with a few tabs open, this warning appeared in dmesg, and I don't know if it could be causing the NULL pointer dereference. Should I file another bug for this?
Dmesg: [ 2779.329850] ------------[ cut here ]------------ [ 2779.329853] WARNING: mm/page_alloc.c:4728 at __alloc_pages_slowpath.constprop.0+0xb85/0xdf0, CPU#0: kswapd0/108 [ 2779.329859] Modules linked in: nvidia_uvm(PO) snd_seq_dummy snd_hrtimer snd_seq snd_seq_device ccm nvidia_drm(PO) nvidia_modeset(PO) nvidia(PO) qrtr rfcomm cmac algif_hash algif_skcipher af_alg zram bnep lz4hc_compress lz4_compress binfmt_misc snd_hda_codec_intelhdmi snd_ctl_led snd_hda_codec_alc269 snd_hda_scodec_component snd_hda_codec_realtek_lib snd_hda_codec_generic snd_hda_intel snd_sof_pci_intel_cnl snd_sof_intel_hda_generic soundwire_intel snd_sof_intel_hda_sdw_bpt snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda_mlink snd_sof_intel_hda snd_hda_codec_hdmi soundwire_cadence snd_sof_pci snd_sof_xtensa_dsp snd_sof btusb snd_sof_utils snd_soc_acpi_intel_match btmtk snd_soc_acpi_intel_sdca_quirks btrtl soundwire_generic_allocation btbcm uvcvideo intel_uncore_frequency snd_soc_sdw_utils btintel intel_uncore_frequency_common videobuf2_vmalloc snd_soc_acpi crc8 bluetooth uvc videobuf2_memops soundwire_bus videobuf2_v4l2 snd_soc_sdca videodev snd_soc_avs x86_pkg_temp_thermal intel_powerclamp videobuf2_common [ 2779.329895] snd_soc_hda_codec iwlmvm mc ecdh_generic snd_hda_ext_core kvm_intel snd_hda_codec snd_hda_core mei_pxp kvm mei_hdcp intel_rapl_msr snd_intel_dspcfg mac80211 snd_intel_sdw_acpi snd_hwdep irqbypass ghash_clmulni_intel aesni_intel rapl intel_cstate snd_soc_core libarc4 intel_uncore processor_thermal_device_pci_legacy snd_compress processor_thermal_device intel_wmi_thunderbolt squashfs processor_thermal_wt_hint snd_pcm_dmaengine iwlwifi snd_pcm platform_temperature_control nls_ascii processor_thermal_soc_slider snd_timer nls_cp437 pcspkr processor_thermal_rfim vfat wmi_bmof snd processor_thermal_rapl loop fat drm_ttm_helper mei_me cfg80211 soundcore intel_rapl_common processor_thermal_wt_req mei processor_thermal_power_floor processor_thermal_mbox intel_soc_dts_iosf intel_pch_thermal ideapad_laptop intel_pmc_core sparse_keymap pmt_telemetry platform_profile pmt_discovery rfkill pmt_class int3403_thermal int340x_thermal_zone joydev intel_pmc_ssram_telemetry int3400_thermal intel_vsec acpi_tad ac acpi_pad [ 2779.329931] acpi_thermal_rel sg evdev coretemp msr drivetemp parport_pc ppdev lp dm_mod parport efi_pstore nvme_fabrics configfs acpi_call(O) nfnetlink efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 crc32c_cryptoapi usbhid i915 drm_buddy ttm i2c_algo_bit drm_display_helper hid_multitouch cec hid_generic sd_mod rc_core i2c_hid_acpi nvme drm_client_lib iTCO_wdt i2c_hid intel_pmc_bxt nvme_core ahci drm_kms_helper hid iTCO_vendor_support xhci_pci libahci watchdog intel_lpss_pci xhci_hcd libata video i2c_i801 nvme_keyring nvme_auth drm intel_lpss usbcore scsi_mod serio_raw hkdf i2c_smbus idma64 scsi_common usb_common battery wmi button [ 2779.329968] CPU: 0 UID: 0 PID: 108 Comm: kswapd0 Tainted: P U O 6.19.6+deb13-amd64 #1 PREEMPT(lazy) Debian 6.19.6-2~bpo13+1 [ 2779.329972] Tainted: [P]=PROPRIETARY_MODULE, [U]=USER, [O]=OOT_MODULE [ 2779.329973] Hardware name: LENOVO 81WB/LNVNB161216, BIOS DXCN45WW 06/13/2023 [ 2779.329974] RIP: 0010:__alloc_pages_slowpath.constprop.0+0xb85/0xdf0 [ 2779.329977] Code: 41 0f 45 c6 41 89 c6 e9 8d f5 ff ff 8b 44 24 30 85 c0 0f 84 f4 01 00 00 65 48 8b 05 5d cf 60 02 f6 40 2d 08 0f 84 d8 f4 ff ff <0f> 0b e9 d1 f4 ff ff 4c 89 e0 e9 a5 f9 ff ff 2e 2e 2e 31 c0 e9 b7 [ 2779.329978] RSP: 0018:ffffd1bdc05a3578 EFLAGS: 00010202 [ 2779.329980] RAX: ffff8f1c41bf1b40 RBX: 0000000000148c48 RCX: 0000000000000002 [ 2779.329981] RDX: ffffd1bdc05a3668 RSI: 0000000000000000 RDI: 0000000000148c48 [ 2779.329982] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000e00 [ 2779.329983] R10: ffffd1bdc05a3668 R11: 0000000000000000 R12: 0000000000000000 [ 2779.329984] R13: ffffd1bdc05a3668 R14: 0000000000000000 R15: 0000000000148c48 [ 2779.329985] FS: 0000000000000000(0000) GS:ffff8f1deed4f000(0000) knlGS:0000000000000000 [ 2779.329987] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2779.329988] CR2: 00007f71d7e3eb60 CR3: 00000001a502c005 CR4: 00000000003726f0 [ 2779.329989] Call Trace: [ 2779.329990] <TASK> [ 2779.329993] ? update_load_avg+0x7f/0x780 [ 2779.329995] ? update_load_avg+0x7f/0x780 [ 2779.329997] ? psi_group_change+0x19e/0x470 [ 2779.329999] __alloc_frozen_pages_noprof+0x2d4/0x320 [ 2779.330002] alloc_pages_mpol+0x7d/0x180 [ 2779.330005] folio_alloc_noprof+0x5d/0xe0 [ 2779.330007] __filemap_get_folio_mpol+0x1f0/0x330 [ 2779.330009] __getblk_slow+0x89/0x200 [ 2779.330012] __ext4_get_inode_loc+0x154/0x4f0 [ext4] [ 2779.330053] ? ext4_get_inode_loc+0x3f/0xa0 [ext4] [ 2779.330085] ext4_get_inode_loc+0x3f/0xa0 [ext4] [ 2779.330117] ? start_this_handle+0x151/0x4f0 [jbd2] [ 2779.330125] ext4_reserve_inode_write+0x4d/0x100 [ext4] [ 2779.330157] __ext4_mark_inode_dirty+0x75/0x240 [ext4] [ 2779.330189] ? jbd2__journal_start+0xfb/0x1e0 [jbd2] [ 2779.330196] ext4_dirty_inode+0x5b/0x80 [ext4] [ 2779.330227] __mark_inode_dirty+0x5b/0x370 [ 2779.330230] iput+0x1d3/0x260 [ 2779.330232] __dentry_kill+0x71/0x190 [ 2779.330234] shrink_dentry_list+0x6b/0xe0 [ 2779.330235] prune_dcache_sb+0x55/0x80 [ 2779.330238] super_cache_scan+0x125/0x1d0 [ 2779.330240] do_shrink_slab+0x14d/0x3d0 [ 2779.330242] shrink_slab+0x289/0x3b0 [ 2779.330244] ? insert_work+0x3f/0x80 [ 2779.330246] shrink_one+0xd6/0x1a0 [ 2779.330249] shrink_node+0x9d5/0xc20 [ 2779.330252] ? mem_cgroup_iter+0x1ca/0x220 [ 2779.330254] balance_pgdat+0x570/0xaa0 [ 2779.330257] ? psi_task_switch+0x131/0x390 [ 2779.330259] ? finish_task_switch.isra.0+0x95/0x2c0 [ 2779.330263] kswapd+0x1c7/0x340 [ 2779.330265] ? __pfx_autoremove_wake_function+0x10/0x10 [ 2779.330268] ? __pfx_kswapd+0x10/0x10 [ 2779.330270] kthread+0xfc/0x240 [ 2779.330272] ? __pfx_kthread+0x10/0x10 [ 2779.330274] ret_from_fork+0x254/0x290 [ 2779.330277] ? __pfx_kthread+0x10/0x10 [ 2779.330279] ret_from_fork_asm+0x1a/0x30 [ 2779.330282] </TASK> [ 2779.330283] ---[ end trace 0000000000000000 ]---
