Backtrace

WARNING: CPU: 0 PID: 50327 at kernel/rcu/tree_plugin.h:331 rcu_note_context_switch+0x65a/0x6d0
Modules linked in: rfcomm snd_seq_dummy snd_hrtimer 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 ip_set nf_tables qrtr snd_sof_pci_intel_skl snd_sof_intel_hda_generic bnep soundwire_intel soundwire_cadence snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda_mlink snd_sof_intel_hda sunrpc snd_sof_pci snd_sof_xtensa_dsp snd_sof snd_sof_utils snd_soc_acpi_intel_match soundwire_generic_allocation snd_soc_acpi soundwire_bus binfmt_misc snd_soc_avs vfat fat snd_soc_hda_codec snd_hda_ext_core snd_soc_core snd_compress intel_rapl_msr ac97_bus intel_rapl_common snd_pcm_dmaengine intel_uncore_frequency intel_uncore_frequency_common snd_hda_codec_hdmi uvcvideo snd_hda_codec_realtek intel_pmc_core_pltdrv snd_hda_codec_generic snd_hda_scodec_component snd_hda_intel intel_pmc_core uvc videobuf2_vmalloc snd_intel_dspcfg videobuf2_memops
 intel_vsec videobuf2_v4l2 snd_intel_sdw_acpi videobuf2_common pmt_telemetry snd_hda_codec pmt_class videodev ath10k_pci mc ath10k_core intel_tcc_cooling btusb snd_hda_core iTCO_wdt x86_pkg_temp_thermal btrtl snd_hwdep intel_powerclamp intel_pmc_bxt coretemp snd_seq mei_pxp mac80211 btintel ee1004 kvm_intel iTCO_vendor_support snd_seq_device mei_hdcp btbcm libarc4 r8169 ath kvm snd_pcm btmtk cfg80211 bluetooth rapl intel_cstate realtek pcspkr snd_timer rfkill intel_uncore intel_xhci_usb_role_switch i2c_i801 idma64 mei_me i2c_smbus joydev mei snd soundcore intel_pch_thermal acpi_pad acpi_tad squashfs loop nfnetlink zram i915 crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 i2c_algo_bit drm_buddy sha256_ssse3 ttm sha1_ssse3 drm_display_helper cec pinctrl_sunrisepoint video wmi serio_raw fuse i2c_dev
CPU: 0 UID: 0 PID: 50327 Comm: updatedb Tainted: G      D W          6.12.6-200.fc41.x86_64 #1
Tainted: [D]=DIE, [W]=WARN
Hardware name: SAMSUNG ELECTRONICS CO., LTD. 300E5M/300E5L/NP300E5M-KD3BR, BIOS P06RED.019.171215.ZW 12/15/2017
RIP: 0010:rcu_note_context_switch+0x65a/0x6d0
Code: a8 00 00 00 00 0f 85 64 fd ff ff 49 89 8d a8 00 00 00 e9 58 fd ff ff 48 c7 c7 10 9a e5 b8 c6 05 b6 19 a2 02 01 e8 d6 0b f2 ff <0f> 0b e9 f1 f9 ff ff 49 83 bd a0 00 00 00 00 75 c2 e9 18 fd ff ff
RSP: 0018:ffffa3b396bf3cd0 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff905f12730000 RCX: 0000000000000027
RDX: ffff906026c21908 RSI: 0000000000000001 RDI: ffff906026c21900
RBP: ffff906026c38000 R08: 0000000000000000 R09: 0000000000000000
R10: 206c616369746972 R11: 0000000000000000 R12: 0000000000000000
R13: ffff905f12730000 R14: ffff905f12730d00 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff906026c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000007c96 CR3: 000000014040c001 CR4: 00000000003726f0
Call Trace:
 <TASK>
 ? rcu_note_context_switch+0x65a/0x6d0
 ? __warn.cold+0x93/0xfa
 ? rcu_note_context_switch+0x65a/0x6d0
 ? report_bug+0xff/0x140
 ? handle_bug+0x58/0x90
 ? exc_invalid_op+0x17/0x70
 ? asm_exc_invalid_op+0x1a/0x20
 ? rcu_note_context_switch+0x65a/0x6d0
 __schedule+0xcc/0x14c0
 ? _raw_spin_unlock_irqrestore+0x1d/0x40
 schedule+0x27/0xf0
 synchronize_rcu_expedited+0x1a8/0x320
 ? __pfx_autoremove_wake_function+0x10/0x10
 ? __pfx_wait_rcu_exp_gp+0x10/0x10
 namespace_unlock+0xd0/0x1a0
 put_mnt_ns+0x6d/0x90
 free_nsproxy+0x1b/0x1b0
 do_exit+0x304/0xab0
 make_task_dead+0x90/0x90
 rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f174040d192
Code: Unable to access opcode bytes at 0x7f174040d168.
RSP: 002b:00007fff540138b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000072 RCX: 00007f174040d192
RDX: 0000000000050000 RSI: 0000555cda740630 RDI: 0000000000000072
RBP: 00007fff54013920 R08: 0000555cdb168413 R09: 0000000000000007
R10: 0000000000000000 R11: 0000000000000202 R12: 0000555cda740630
R13: 0000000000000000 R14: 0000000000000033 R15: 0000555cdb5ae1e0
 </TASK>