Backtrace

general protection fault, probably for non-canonical address 0x4aa1000000000: 0000 [#1] SMP PTI
CPU: 5 PID: 3688 Comm: ThreadPoolForeg Not tainted 5.8.18-100.fc31.x86_64 #1
Hardware name: Acer TravelMate X3410-M/Apus_KL, BIOS V1.01 11/07/2018
RIP: 0010:page_remove_rmap+0x8b/0x4b0
Code: 36 48 8b 40 38 48 8b 3c d5 a0 1b c6 9c 48 85 c0 0f 84 67 02 00 00 0f 1f 44 00 00 48 63 97 c0 a0 02 00 4c 8b 84 d0 48 0b 00 00 <49> 3b 78 78 0f 85 5f 03 00 00 ba ff ff ff ff be 0e 00 00 00 4c 89
RSP: 0018:ffffb2f0c28c7b20 EFLAGS: 00010286
RAX: ffff9b8742266000 RBX: 0000000000000000 RCX: 8000000000000865
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9b876efd5000
RBP: ffffd6ae08f78c80 R08: 0004aa1000000000 R09: ffffd6ae042f0148
R10: 00000000001c6356 R11: 0000000000000000 R12: ffffb2f0c28c7c88
R13: 000029040bf24000 R14: 800000023de32865 R15: 000029040bf23000
FS:  00007f007374a700(0000) GS:ffff9b875ed40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f00650879d0 CR3: 0000000367a0a005 CR4: 00000000003606e0
Call Trace:
 unmap_page_range+0x705/0xee0
 unmap_vmas+0x6a/0xd0
 exit_mmap+0x97/0x170
 mmput+0x61/0x140
 do_exit+0x306/0xb80
 do_group_exit+0x3a/0xa0
 get_signal+0x172/0x900
 do_signal+0x30/0x700
 ? fsnotify_put_mark+0x33/0x1a0
 ? refcount_dec_and_lock+0x13/0x70
 __prepare_exit_to_usermode+0x14a/0x1e0
 do_syscall_64+0x59/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f008683107a
Code: Unable to access opcode bytes at RIP 0x7f0086831050.
RSP: 002b:00007f00737491b0 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 0000000000000000 RCX: 00007f008683107a
RDX: 0000000000000000 RSI: 0000000000000089 RDI: 00007f0073749538
RBP: 00007f0073749510 R08: 0000000000000000 R09: 00000000ffffffff
R10: 00007f0073749330 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f00737494e8 R14: 00007f0073749538 R15: 00007f00737491f0
Modules linked in: uinput rfcomm ccm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun bridge stp llc ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat squashfs loop snd_hda_codec_hdmi snd_soc_skl snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi iwlmvm snd_soc_core snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel x86_pkg_temp_thermal intel_powerclamp mac80211 snd_intel_dspcfg coretemp snd_hda_codec kvm_intel iTCO_wdt intel_pmc_bxt ee1004 mei_hdcp libarc4 iTCO_vendor_support kvm snd_hda_core
 intel_rapl_msr snd_hwdep iwlwifi snd_seq uvcvideo snd_seq_device irqbypass rapl videobuf2_vmalloc videobuf2_memops btusb intel_cstate snd_pcm cfg80211 btrtl videobuf2_v4l2 btbcm btintel videobuf2_common intel_uncore bluetooth videodev snd_timer pcspkr acer_wmi snd wmi_bmof intel_wmi_thunderbolt sparse_keymap i2c_i801 soundcore i2c_smbus mc ecdh_generic mei_me joydev rfkill ucsi_acpi processor_thermal_device intel_xhci_usb_role_switch ecc intel_rapl_common typec_ucsi mei idma64 intel_pch_thermal intel_soc_dts_iosf roles typec int3403_thermal acer_wireless int340x_thermal_zone int3400_thermal acpi_pad acpi_thermal_rel ip_tables i915 crct10dif_pclmul crc32_pclmul i2c_algo_bit crc32c_intel drm_kms_helper ghash_clmulni_intel cec drm serio_raw r8169 wmi pinctrl_sunrisepoint video pinctrl_intel fuse