Backtrace

WARNING: CPU: 5 PID: 8775 at kernel/rcu/tree_plugin.h:332 rcu_note_context_switch+0x303/0x320
Modules linked in: hid_logitech_hidpp uinput rfcomm snd_seq_dummy snd_hrtimer uhid sunrpc nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables qrtr bnep vfat fat iwlmvm snd_sof_pci_intel_mtl snd_sof_intel_hda_generic soundwire_intel mac80211 snd_sof_intel_hda_sdw_bpt snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda_mlink snd_sof_intel_hda soundwire_cadence snd_sof_pci snd_sof_xtensa_dsp snd_sof libarc4 snd_hda_codec_hdmi snd_sof_utils snd_hda_ext_core intel_rapl_msr snd_soc_acpi_intel_match intel_rapl_common snd_soc_acpi_intel_sdca_quirks soundwire_generic_allocation intel_uncore_frequency snd_soc_acpi intel_uncore_frequency_common crc8 x86_pkg_temp_thermal soundwire_bus intel_powerclamp coretemp snd_soc_sdca snd_soc_core snd_hda_codec_realtek kvm_intel snd_hda_codec_generic spi_nor snd_compress iTCO_wdt ac97_bus
 snd_hda_scodec_component intel_pmc_bxt snd_pcm_dmaengine mtd iTCO_vendor_support kvm snd_hda_intel snd_intel_dspcfg uvcvideo snd_usb_audio snd_intel_sdw_acpi uvc videobuf2_vmalloc irqbypass snd_hda_codec videobuf2_memops btusb snd_usbmidi_lib snd_hda_core videobuf2_v4l2 btrtl snd_ump iwlwifi videobuf2_common snd_hwdep rapl snd_rawmidi intel_cstate btintel snd_seq videodev btbcm btmtk snd_seq_device cfg80211 mc bluetooth snd_pcm intel_uncore pcspkr snd_timer i2c_i801 rfkill intel_pmc_core spi_intel_pci snd spi_intel i2c_smbus soundcore idma64 pmt_telemetry pmt_class intel_vpu igen6_edac intel_hid system76_acpi(OE) intel_pmc_ssram_telemetry sparse_keymap intel_scu_pltdrv joydev loop nfnetlink zram lz4hc_compress lz4_compress dm_crypt hid_jabra xe drm_ttm_helper drm_suballoc_helper gpu_sched drm_gpuvm drm_exec drm_gpusvm i915 sdhci_pci i2c_algo_bit sdhci_uhs2 drm_buddy polyval_clmulni sdhci ttm ghash_clmulni_intel nvme hid_multitouch cqhci sha512_ssse3 mmc_core drm_display_helper sha1_ssse3 thunderbolt
 i2c_hid_acpi nvme_core video i2c_hid wmi cec pinctrl_meteorlake nvme_keyring intel_vsec nvme_auth serio_raw i2c_dev fuse
CPU: 5 UID: 0 PID: 8775 Comm: systemd-coredum Tainted: G      D    OE       6.16.9-200.fc42.x86_64 #1 PREEMPT(lazy) 
Tainted: [D]=DIE, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: System76 Lemur Pro/Lemur Pro, BIOS 2025-07-24_c242738 07/24/2025
RIP: 0010:rcu_note_context_switch+0x303/0x320
Code: ba 02 00 00 00 be 01 00 00 00 48 89 df e8 a5 f5 fe ff e9 e0 fd ff ff 48 c7 c7 a8 02 65 ba c6 05 15 25 76 02 01 e8 ed 93 f1 ff <0f> 0b e9 42 fd ff ff 0f 0b e9 4a ff ff ff 0f 0b e9 2c ff ff ff 0f
RSP: 0018:ffffcd2be637bd70 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8d261a00d480 RCX: 0000000000000027
RDX: ffff8d328389cf88 RSI: 0000000000000001 RDI: ffff8d328389cf80
RBP: ffff8d32838b3480 R08: 0000000000000000 R09: ffffcd2be637bc18
R10: ffffffffbb139808 R11: 00000000ffffdfff R12: 0000000000000000
R13: 0000000000000000 R14: ffffffffbb171ad0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8d32c78dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f11627b0000 CR3: 000000094122c004 CR4: 0000000000f72ef0
PKRU: 55555554
Call Trace:
 <TASK>
 __schedule+0xd5/0x7b0
 ? prepare_to_wait_event+0x58/0x1b0
 schedule+0x27/0x80
 synchronize_rcu_expedited+0x218/0x270
 ? __pfx_autoremove_wake_function+0x10/0x10
 ? __pfx_wait_rcu_exp_gp+0x10/0x10
 namespace_unlock+0x218/0x2e0
 put_mnt_ns+0x68/0x80
 free_nsproxy+0x16/0x180
 do_exit+0x1d3/0x440
 ? arch_exit_to_user_mode_prepare.isra.0+0x6a/0x80
 make_task_dead+0x8d/0x90
 rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f9e3b07c77e
Code: Unable to access opcode bytes at 0x7f9e3b07c754.
RSP: 002b:00007fff468cf200 EFLAGS: 00000202 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f9e3b07c77e
RDX: 0000000000000007 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007fff468cf210 R08: 000000071449a000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000010000
R13: 0000000000000007 R14: 000000071449a000 R15: 000000071449a000
 </TASK>