** Information type changed from Private Security to Public Security -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1937107
Title: Kernel Oops - unable to handle kernel paging request at Status in linux package in Ubuntu: New Bug description: I had numerous kernel panics after upgrading to the latest kernel. Reverting to the previous Release 4.15.0-147 fixes the problem. I first noticed this when my desktop was "stuck". I switched to the console to run htop, to see if anything was blocking. And this seemed to consistently trigger the oops. Jul 21 13:22:07 nb0032 kernel: BUG: unable to handle kernel paging request at ffff9df6410a7d7c Jul 21 13:22:07 nb0032 kernel: IP: kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:07 nb0032 kernel: PGD 0 P4D 0 Jul 21 13:22:07 nb0032 kernel: Oops: 0000 [#1] SMP PTI Jul 21 13:22:07 nb0032 kernel: Modules linked in: ccm rfcomm xt_nat veth nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 pci_stub xt_tcpudp vboxpci(OE) vboxnetadp(OE) bridge stp llc vboxnetflt(OE) vboxdrv(OE) ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter aufs overlay cmac bnep cdc_ether usbnet uvcvideo videobuf2_vmalloc videobuf2_memops btusb videobuf2_v4l2 btrtl btbcm videobuf2_core btintel videodev bluetooth media snd_usb_audio r8152 snd_usbmidi_lib ecdh_generic mii binfmt_misc nls_iso8859_1 joydev hid_alps dell_smm_hwmon snd_hda_codec_hdmi snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core Jul 21 13:22:07 nb0032 kernel: dell_rbtn snd_soc_sst_dsp dell_laptop snd_soc_sst_ipc snd_soc_acpi intel_rapl snd_soc_core x86_pkg_temp_thermal intel_powerclamp arc4 snd_compress snd_hda_codec_realtek coretemp ac97_bus snd_hda_codec_generic kvm_intel snd_pcm_dmaengine snd_hda_intel snd_hda_codec kvm snd_hda_core snd_hwdep irqbypass snd_pcm intel_cstate intel_rapl_perf snd_seq_midi snd_seq_midi_event snd_rawmidi dell_wmi snd_seq dell_smbios dcdbas input_leds snd_seq_device intel_wmi_thunderbolt iwlmvm wmi_bmof snd_timer dell_wmi_descriptor serio_raw mac80211 snd iwlwifi soundcore rtsx_pci_ms cfg80211 memstick acpi_pad processor_thermal_device intel_hid int3403_thermal mac_hid sparse_keymap int3400_thermal int340x_thermal_zone intel_soc_dts_iosf acpi_thermal_rel intel_lpss_acpi intel_pch_thermal idma64 virt_dma mei_me Jul 21 13:22:07 nb0032 kernel: mei intel_lpss_pci shpchp intel_lpss sch_fq_codel parport_pc ppdev nfsd nfs_acl lockd grace auth_rpcgss sunrpc lp parport ip_tables x_tables autofs4 btrfs zstd_compress algif_skcipher af_alg dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i2c_algo_bit pcbc rtsx_pci_sdmmc drm_kms_helper syscopyarea e1000e sysfillrect sysimgblt fb_sys_fops ptp aesni_intel aes_x86_64 crypto_simd glue_helper cryptd pps_core drm ahci rtsx_pci libahci i2c_hid wmi hid video Jul 21 13:22:07 nb0032 kernel: CPU: 3 PID: 8983 Comm: htop Tainted: G OE 4.15.0-151-generic #157-Ubuntu Jul 21 13:22:07 nb0032 kernel: Hardware name: Dell Inc. Latitude 7480/00F6D3, BIOS 1.11.1 07/12/2018 Jul 21 13:22:07 nb0032 kernel: RIP: 0010:kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:07 nb0032 kernel: RSP: 0018:ffffaa38d1e17c50 EFLAGS: 00010282 Jul 21 13:22:07 nb0032 kernel: RAX: ffff9df6410a7d7c RBX: 0000000000000000 RCX: ffff9d3b832079c0 Jul 21 13:22:07 nb0032 kernel: RDX: 000000000028533c RSI: 00000000014080c0 RDI: 00002cfbc183c370 Jul 21 13:22:07 nb0032 kernel: RBP: ffffaa38d1e17c80 R08: ffffca38bfdbc370 R09: ffffffffffffdfc0 Jul 21 13:22:07 nb0032 kernel: R10: ffffaa38d1e17eb8 R11: 0000000000000000 R12: ffff9df6410a7d7c Jul 21 13:22:07 nb0032 kernel: R13: 00000000014080c0 R14: ffff9d3cdd125200 R15: ffff9d3c9892d800 Jul 21 13:22:07 nb0032 kernel: FS: 00007fbe9e271740(0000) GS:ffff9d3cfe580000(0000) knlGS:0000000000000000 Jul 21 13:22:07 nb0032 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 21 13:22:07 nb0032 kernel: CR2: ffff9df6410a7d7c CR3: 0000000570a5a003 CR4: 00000000003626e0 Jul 21 13:22:07 nb0032 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 21 13:22:07 nb0032 kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jul 21 13:22:07 nb0032 kernel: Call Trace: Jul 21 13:22:07 nb0032 kernel: ? get_empty_filp+0x5c/0x1c0 Jul 21 13:22:07 nb0032 kernel: get_empty_filp+0x5c/0x1c0 Jul 21 13:22:07 nb0032 kernel: path_openat+0x40/0x18b0 Jul 21 13:22:07 nb0032 kernel: ? do_task_stat+0x8b0/0xbc0 Jul 21 13:22:07 nb0032 kernel: ? put_dec+0x18/0xa0 Jul 21 13:22:07 nb0032 kernel: ? number+0x30a/0x330 Jul 21 13:22:07 nb0032 kernel: ? __d_lookup+0x5f/0x140 Jul 21 13:22:07 nb0032 kernel: ? __check_object_size+0x42/0x1b0 Jul 21 13:22:07 nb0032 kernel: ? _copy_to_user+0x26/0x30 Jul 21 13:22:07 nb0032 kernel: do_filp_open+0x9b/0x110 Jul 21 13:22:07 nb0032 kernel: ? proc_fill_cache+0x9b/0x180 Jul 21 13:22:07 nb0032 kernel: ? __check_object_size+0xc8/0x1b0 Jul 21 13:22:07 nb0032 kernel: ? __alloc_fd+0x46/0x170 Jul 21 13:22:07 nb0032 kernel: do_sys_open+0x1ba/0x2c0 Jul 21 13:22:07 nb0032 kernel: ? do_sys_open+0x1ba/0x2c0 Jul 21 13:22:07 nb0032 kernel: ? _cond_resched+0x19/0x40 Jul 21 13:22:07 nb0032 kernel: SyS_openat+0x14/0x20 Jul 21 13:22:07 nb0032 kernel: do_syscall_64+0x73/0x130 Jul 21 13:22:07 nb0032 kernel: entry_SYSCALL_64_after_hwframe+0x41/0xa6 Jul 21 13:22:07 nb0032 kernel: RIP: 0033:0x7fbe9d3aad5e Jul 21 13:22:07 nb0032 kernel: RSP: 002b:00007ffe69512860 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 Jul 21 13:22:07 nb0032 kernel: RAX: ffffffffffffffda RBX: 00007ffe69512c00 RCX: 00007fbe9d3aad5e Jul 21 13:22:07 nb0032 kernel: RDX: 0000000000000000 RSI: 00007ffe69512c00 RDI: 00000000ffffff9c Jul 21 13:22:07 nb0032 kernel: RBP: 0000560e5bd01f28 R08: 0000560e5d07fb03 R09: 0000000000000002 Jul 21 13:22:07 nb0032 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000560e5bf11d0f Jul 21 13:22:07 nb0032 kernel: R13: 0000560e5d08c990 R14: 0000560e5d07fb03 R15: 00007ffe69512980 Jul 21 13:22:07 nb0032 kernel: Code: 50 08 65 4c 03 05 0f d5 db 60 49 83 78 10 00 4d 8b 20 0f 84 09 01 00 00 4d 85 e4 0f 84 00 01 00 00 49 63 47 20 49 8b 3f 4c 01 e0 <48> 8b 18 49 33 9f 40 01 00 00 48 89 c1 48 0f c9 4c 89 e0 48 31 Jul 21 13:22:07 nb0032 kernel: RIP: kmem_cache_alloc+0x7a/0x1c0 RSP: ffffaa38d1e17c50 Jul 21 13:22:07 nb0032 kernel: CR2: ffff9df6410a7d7c Jul 21 13:22:07 nb0032 kernel: ---[ end trace ad56e9a460c882f2 ]--- Jul 21 13:22:07 nb0032 kernel: BUG: unable to handle kernel paging request at ffff9df6410a7d7c Jul 21 13:22:07 nb0032 kernel: IP: kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:07 nb0032 kernel: PGD 0 P4D 0 Jul 21 13:22:07 nb0032 kernel: Oops: 0000 [#2] SMP PTI Jul 21 13:22:07 nb0032 kernel: Modules linked in: ccm rfcomm xt_nat veth nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 pci_stub xt_tcpudp vboxpci(OE) vboxnetadp(OE) bridge stp llc vboxnetflt(OE) vboxdrv(OE) ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter aufs overlay cmac bnep cdc_ether usbnet uvcvideo videobuf2_vmalloc videobuf2_memops btusb videobuf2_v4l2 btrtl btbcm videobuf2_core btintel videodev bluetooth media snd_usb_audio r8152 snd_usbmidi_lib ecdh_generic mii binfmt_misc nls_iso8859_1 joydev hid_alps dell_smm_hwmon snd_hda_codec_hdmi snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core Jul 21 13:22:07 nb0032 kernel: dell_rbtn snd_soc_sst_dsp dell_laptop snd_soc_sst_ipc snd_soc_acpi intel_rapl snd_soc_core x86_pkg_temp_thermal intel_powerclamp arc4 snd_compress snd_hda_codec_realtek coretemp ac97_bus snd_hda_codec_generic kvm_intel snd_pcm_dmaengine snd_hda_intel snd_hda_codec kvm snd_hda_core snd_hwdep irqbypass snd_pcm intel_cstate intel_rapl_perf snd_seq_midi snd_seq_midi_event snd_rawmidi dell_wmi snd_seq dell_smbios dcdbas input_leds snd_seq_device intel_wmi_thunderbolt iwlmvm wmi_bmof snd_timer dell_wmi_descriptor serio_raw mac80211 snd iwlwifi soundcore rtsx_pci_ms cfg80211 memstick acpi_pad processor_thermal_device intel_hid int3403_thermal mac_hid sparse_keymap int3400_thermal int340x_thermal_zone intel_soc_dts_iosf acpi_thermal_rel intel_lpss_acpi intel_pch_thermal idma64 virt_dma mei_me Jul 21 13:22:07 nb0032 kernel: mei intel_lpss_pci shpchp intel_lpss sch_fq_codel parport_pc ppdev nfsd nfs_acl lockd grace auth_rpcgss sunrpc lp parport ip_tables x_tables autofs4 btrfs zstd_compress algif_skcipher af_alg dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i2c_algo_bit pcbc rtsx_pci_sdmmc drm_kms_helper syscopyarea e1000e sysfillrect sysimgblt fb_sys_fops ptp aesni_intel aes_x86_64 crypto_simd glue_helper cryptd pps_core drm ahci rtsx_pci libahci i2c_hid wmi hid video Jul 21 13:22:07 nb0032 kernel: CPU: 3 PID: 4956 Comm: Qt bearer threa Tainted: G D OE 4.15.0-151-generic #157-Ubuntu Jul 21 13:22:07 nb0032 kernel: Hardware name: Dell Inc. Latitude 7480/00F6D3, BIOS 1.11.1 07/12/2018 Jul 21 13:22:07 nb0032 kernel: RIP: 0010:kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:07 nb0032 kernel: RSP: 0018:ffffaa38c7107df0 EFLAGS: 00010282 Jul 21 13:22:07 nb0032 kernel: RAX: ffff9df6410a7d7c RBX: 0000000000000000 RCX: ffffffff9ff0f280 Jul 21 13:22:07 nb0032 kernel: RDX: 0000000000285346 RSI: 00000000014080c0 RDI: 00002cfbc183c370 Jul 21 13:22:07 nb0032 kernel: RBP: ffffaa38c7107e20 R08: ffffca38bfdbc370 R09: ffffffffffffc000 Jul 21 13:22:07 nb0032 kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffff9df6410a7d7c Jul 21 13:22:07 nb0032 kernel: R13: 00000000014080c0 R14: ffff9d3cdd125200 R15: ffff9d3c9892d800 Jul 21 13:22:07 nb0032 kernel: FS: 00007ffaf6b66700(0000) GS:ffff9d3cfe580000(0000) knlGS:0000000000000000 Jul 21 13:22:07 nb0032 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 21 13:22:07 nb0032 kernel: CR2: ffff9df6410a7d7c CR3: 00000007a1e62002 CR4: 00000000003626e0 Jul 21 13:22:07 nb0032 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 21 13:22:07 nb0032 kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jul 21 13:22:07 nb0032 kernel: Call Trace: Jul 21 13:22:07 nb0032 kernel: ? get_empty_filp+0x5c/0x1c0 Jul 21 13:22:07 nb0032 kernel: get_empty_filp+0x5c/0x1c0 Jul 21 13:22:07 nb0032 kernel: ? __d_instantiate+0x39/0xf0 Jul 21 13:22:07 nb0032 kernel: alloc_file+0x20/0xe0 Jul 21 13:22:07 nb0032 kernel: sock_alloc_file+0xa0/0x150 Jul 21 13:22:07 nb0032 kernel: sock_map_fd+0x32/0x80 Jul 21 13:22:07 nb0032 kernel: SyS_socket+0x6a/0x90 Jul 21 13:22:07 nb0032 kernel: do_syscall_64+0x73/0x130 Jul 21 13:22:07 nb0032 kernel: entry_SYSCALL_64_after_hwframe+0x41/0xa6 Jul 21 13:22:07 nb0032 kernel: RIP: 0033:0x7ffb103e1d57 Jul 21 13:22:07 nb0032 kernel: RSP: 002b:00007ffaf6b64f88 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 Jul 21 13:22:07 nb0032 kernel: RAX: ffffffffffffffda RBX: 00007ffaf6b65070 RCX: 00007ffb103e1d57 Jul 21 13:22:07 nb0032 kernel: RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 Jul 21 13:22:07 nb0032 kernel: RBP: 0000000000000002 R08: 0000000000000002 R09: 00007ffaec03a628 Jul 21 13:22:07 nb0032 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffaf6b65070 Jul 21 13:22:07 nb0032 kernel: R13: 0000000000000000 R14: 00005560e0b25100 R15: 00007ffaf6b65050 Jul 21 13:22:07 nb0032 kernel: Code: 50 08 65 4c 03 05 0f d5 db 60 49 83 78 10 00 4d 8b 20 0f 84 09 01 00 00 4d 85 e4 0f 84 00 01 00 00 49 63 47 20 49 8b 3f 4c 01 e0 <48> 8b 18 49 33 9f 40 01 00 00 48 89 c1 48 0f c9 4c 89 e0 48 31 Jul 21 13:22:07 nb0032 kernel: RIP: kmem_cache_alloc+0x7a/0x1c0 RSP: ffffaa38c7107df0 Jul 21 13:22:07 nb0032 kernel: CR2: ffff9df6410a7d7c Jul 21 13:22:07 nb0032 kernel: ---[ end trace ad56e9a460c882f3 ]--- Jul 21 13:22:07 nb0032 kernel: BUG: unable to handle kernel paging request at ffff9df6410a7d7c Jul 21 13:22:07 nb0032 kernel: IP: kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:07 nb0032 kernel: PGD 0 P4D 0 Jul 21 13:22:08 nb0032 kernel: Oops: 0000 [#3] SMP PTI Jul 21 13:22:08 nb0032 kernel: Modules linked in: ccm rfcomm xt_nat veth nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 pci_stub xt_tcpudp vboxpci(OE) vboxnetadp(OE) bridge stp llc vboxnetflt(OE) vboxdrv(OE) ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter aufs overlay cmac bnep cdc_ether usbnet uvcvideo videobuf2_vmalloc videobuf2_memops btusb videobuf2_v4l2 btrtl btbcm videobuf2_core btintel videodev bluetooth media snd_usb_audio r8152 snd_usbmidi_lib ecdh_generic mii binfmt_misc nls_iso8859_1 joydev hid_alps dell_smm_hwmon snd_hda_codec_hdmi snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core Jul 21 13:22:08 nb0032 kernel: dell_rbtn snd_soc_sst_dsp dell_laptop snd_soc_sst_ipc snd_soc_acpi intel_rapl snd_soc_core x86_pkg_temp_thermal intel_powerclamp arc4 snd_compress snd_hda_codec_realtek coretemp ac97_bus snd_hda_codec_generic kvm_intel snd_pcm_dmaengine snd_hda_intel snd_hda_codec kvm snd_hda_core snd_hwdep irqbypass snd_pcm intel_cstate intel_rapl_perf snd_seq_midi snd_seq_midi_event snd_rawmidi dell_wmi snd_seq dell_smbios dcdbas input_leds snd_seq_device intel_wmi_thunderbolt iwlmvm wmi_bmof snd_timer dell_wmi_descriptor serio_raw mac80211 snd iwlwifi soundcore rtsx_pci_ms cfg80211 memstick acpi_pad processor_thermal_device intel_hid int3403_thermal mac_hid sparse_keymap int3400_thermal int340x_thermal_zone intel_soc_dts_iosf acpi_thermal_rel intel_lpss_acpi intel_pch_thermal idma64 virt_dma mei_me Jul 21 13:22:08 nb0032 kernel: mei intel_lpss_pci shpchp intel_lpss sch_fq_codel parport_pc ppdev nfsd nfs_acl lockd grace auth_rpcgss sunrpc lp parport ip_tables x_tables autofs4 btrfs zstd_compress algif_skcipher af_alg dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i2c_algo_bit pcbc rtsx_pci_sdmmc drm_kms_helper syscopyarea e1000e sysfillrect sysimgblt fb_sys_fops ptp aesni_intel aes_x86_64 crypto_simd glue_helper cryptd pps_core drm ahci rtsx_pci libahci i2c_hid wmi hid video Jul 21 13:22:08 nb0032 kernel: CPU: 3 PID: 4994 Comm: Qt bearer threa Tainted: G D OE 4.15.0-151-generic #157-Ubuntu Jul 21 13:22:08 nb0032 kernel: Hardware name: Dell Inc. Latitude 7480/00F6D3, BIOS 1.11.1 07/12/2018 Jul 21 13:22:08 nb0032 kernel: RIP: 0010:kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:08 nb0032 kernel: RSP: 0018:ffffaa38c6f6fdf0 EFLAGS: 00010282 Jul 21 13:22:08 nb0032 kernel: RAX: ffff9df6410a7d7c RBX: 0000000000000000 RCX: ffffffff9ff0f280 Jul 21 13:22:08 nb0032 kernel: RDX: 0000000000285346 RSI: 00000000014080c0 RDI: 00002cfbc183c370 Jul 21 13:22:08 nb0032 kernel: RBP: ffffaa38c6f6fe20 R08: ffffca38bfdbc370 R09: fffffffffffe0000 Jul 21 13:22:08 nb0032 kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffff9df6410a7d7c Jul 21 13:22:08 nb0032 kernel: R13: 00000000014080c0 R14: ffff9d3cdd125200 R15: ffff9d3c9892d800 Jul 21 13:22:08 nb0032 kernel: FS: 00007f95c37fe700(0000) GS:ffff9d3cfe580000(0000) knlGS:0000000000000000 Jul 21 13:22:08 nb0032 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 21 13:22:08 nb0032 kernel: CR2: ffff9df6410a7d7c CR3: 000000079d2ca003 CR4: 00000000003626e0 Jul 21 13:22:08 nb0032 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 21 13:22:08 nb0032 kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jul 21 13:22:08 nb0032 kernel: Call Trace: Jul 21 13:22:08 nb0032 kernel: ? get_empty_filp+0x5c/0x1c0 Jul 21 13:22:08 nb0032 kernel: get_empty_filp+0x5c/0x1c0 Jul 21 13:22:08 nb0032 kernel: ? __d_instantiate+0x39/0xf0 Jul 21 13:22:08 nb0032 kernel: alloc_file+0x20/0xe0 Jul 21 13:22:08 nb0032 kernel: sock_alloc_file+0xa0/0x150 Jul 21 13:22:08 nb0032 kernel: sock_map_fd+0x32/0x80 Jul 21 13:22:08 nb0032 kernel: SyS_socket+0x6a/0x90 Jul 21 13:22:08 nb0032 kernel: do_syscall_64+0x73/0x130 Jul 21 13:22:08 nb0032 kernel: entry_SYSCALL_64_after_hwframe+0x41/0xa6 Jul 21 13:22:08 nb0032 kernel: RIP: 0033:0x7f9616f93d57 Jul 21 13:22:08 nb0032 kernel: RSP: 002b:00007f95c37fc948 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 Jul 21 13:22:08 nb0032 kernel: RAX: ffffffffffffffda RBX: 00007f95c37fca98 RCX: 00007f9616f93d57 Jul 21 13:22:08 nb0032 kernel: RDX: 0000000000000000 RSI: 0000000000080003 RDI: 0000000000000010 Jul 21 13:22:08 nb0032 kernel: RBP: 00007f95c37fca30 R08: 0000000000000000 R09: 0000000000000000 Jul 21 13:22:08 nb0032 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 00007f95c37fccc0 Jul 21 13:22:08 nb0032 kernel: R13: 0000000000000001 R14: 000055f347ade9a0 R15: 00007f95c37fcb98 Jul 21 13:22:08 nb0032 kernel: Code: 50 08 65 4c 03 05 0f d5 db 60 49 83 78 10 00 4d 8b 20 0f 84 09 01 00 00 4d 85 e4 0f 84 00 01 00 00 49 63 47 20 49 8b 3f 4c 01 e0 <48> 8b 18 49 33 9f 40 01 00 00 48 89 c1 48 0f c9 4c 89 e0 48 31 Jul 21 13:22:08 nb0032 kernel: RIP: kmem_cache_alloc+0x7a/0x1c0 RSP: ffffaa38c6f6fdf0 Jul 21 13:22:08 nb0032 kernel: CR2: ffff9df6410a7d7c Jul 21 13:22:08 nb0032 kernel: ---[ end trace ad56e9a460c882f4 ]--- Jul 21 13:22:08 nb0032 kernel: BUG: unable to handle kernel paging request at ffff9df6410a7d7c Jul 21 13:22:08 nb0032 kernel: IP: kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:08 nb0032 kernel: PGD 0 P4D 0 Jul 21 13:22:08 nb0032 kernel: Oops: 0000 [#4] SMP PTI Jul 21 13:22:08 nb0032 kernel: Modules linked in: ccm rfcomm xt_nat veth nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 pci_stub xt_tcpudp vboxpci(OE) vboxnetadp(OE) bridge stp llc vboxnetflt(OE) vboxdrv(OE) ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter aufs overlay cmac bnep cdc_ether usbnet uvcvideo videobuf2_vmalloc videobuf2_memops btusb videobuf2_v4l2 btrtl btbcm videobuf2_core btintel videodev bluetooth media snd_usb_audio r8152 snd_usbmidi_lib ecdh_generic mii binfmt_misc nls_iso8859_1 joydev hid_alps dell_smm_hwmon snd_hda_codec_hdmi snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core Jul 21 13:22:08 nb0032 kernel: dell_rbtn snd_soc_sst_dsp dell_laptop snd_soc_sst_ipc snd_soc_acpi intel_rapl snd_soc_core x86_pkg_temp_thermal intel_powerclamp arc4 snd_compress snd_hda_codec_realtek coretemp ac97_bus snd_hda_codec_generic kvm_intel snd_pcm_dmaengine snd_hda_intel snd_hda_codec kvm snd_hda_core snd_hwdep irqbypass snd_pcm intel_cstate intel_rapl_perf snd_seq_midi snd_seq_midi_event snd_rawmidi dell_wmi snd_seq dell_smbios dcdbas input_leds snd_seq_device intel_wmi_thunderbolt iwlmvm wmi_bmof snd_timer dell_wmi_descriptor serio_raw mac80211 snd iwlwifi soundcore rtsx_pci_ms cfg80211 memstick acpi_pad processor_thermal_device intel_hid int3403_thermal mac_hid sparse_keymap int3400_thermal int340x_thermal_zone intel_soc_dts_iosf acpi_thermal_rel intel_lpss_acpi intel_pch_thermal idma64 virt_dma mei_me Jul 21 13:22:08 nb0032 kernel: mei intel_lpss_pci shpchp intel_lpss sch_fq_codel parport_pc ppdev nfsd nfs_acl lockd grace auth_rpcgss sunrpc lp parport ip_tables x_tables autofs4 btrfs zstd_compress algif_skcipher af_alg dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i2c_algo_bit pcbc rtsx_pci_sdmmc drm_kms_helper syscopyarea e1000e sysfillrect sysimgblt fb_sys_fops ptp aesni_intel aes_x86_64 crypto_simd glue_helper cryptd pps_core drm ahci rtsx_pci libahci i2c_hid wmi hid video Jul 21 13:22:08 nb0032 kernel: CPU: 3 PID: 6335 Comm: Chrome_IOThread Tainted: G D OE 4.15.0-151-generic #157-Ubuntu Jul 21 13:22:08 nb0032 kernel: Hardware name: Dell Inc. Latitude 7480/00F6D3, BIOS 1.11.1 07/12/2018 Jul 21 13:22:08 nb0032 kernel: RIP: 0010:kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:08 nb0032 kernel: RSP: 0018:ffffaa38c6b87c50 EFLAGS: 00010282 Jul 21 13:22:08 nb0032 kernel: RAX: ffff9df6410a7d7c RBX: 0000000000000000 RCX: ffff9d3b82e48240 Jul 21 13:22:08 nb0032 kernel: RDX: 0000000000285350 RSI: 00000000014080c0 RDI: 00002cfbc183c370 Jul 21 13:22:08 nb0032 kernel: RBP: ffffaa38c6b87c80 R08: ffffca38bfdbc370 R09: f800082500000000 Jul 21 13:22:08 nb0032 kernel: R10: ffffaa38c6b87eb8 R11: 0000000000000000 R12: ffff9df6410a7d7c Jul 21 13:22:08 nb0032 kernel: R13: 00000000014080c0 R14: ffff9d3cdd125200 R15: ffff9d3c9892d800 Jul 21 13:22:08 nb0032 kernel: FS: 00007f75717fa700(0000) GS:ffff9d3cfe580000(0000) knlGS:0000000000000000 Jul 21 13:22:08 nb0032 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 21 13:22:08 nb0032 kernel: CR2: ffff9df6410a7d7c CR3: 0000000703046005 CR4: 00000000003626e0 Jul 21 13:22:08 nb0032 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 21 13:22:08 nb0032 kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jul 21 13:22:08 nb0032 kernel: Call Trace: Jul 21 13:22:08 nb0032 kernel: ? get_empty_filp+0x5c/0x1c0 Jul 21 13:22:08 nb0032 kernel: get_empty_filp+0x5c/0x1c0 Jul 21 13:22:08 nb0032 kernel: path_openat+0x40/0x18b0 Jul 21 13:22:08 nb0032 kernel: do_filp_open+0x9b/0x110 Jul 21 13:22:08 nb0032 kernel: ? ep_scan_ready_list.constprop.17+0x204/0x210 Jul 21 13:22:08 nb0032 kernel: ? __check_object_size+0xc8/0x1b0 Jul 21 13:22:08 nb0032 kernel: ? __alloc_fd+0x46/0x170 Jul 21 13:22:08 nb0032 kernel: do_sys_open+0x1ba/0x2c0 Jul 21 13:22:08 nb0032 kernel: ? do_sys_open+0x1ba/0x2c0 Jul 21 13:22:08 nb0032 kernel: SyS_openat+0x14/0x20 Jul 21 13:22:08 nb0032 kernel: do_syscall_64+0x73/0x130 Jul 21 13:22:08 nb0032 kernel: entry_SYSCALL_64_after_hwframe+0x41/0xa6 Jul 21 13:22:08 nb0032 kernel: RIP: 0033:0x7f7590e81e9e Jul 21 13:22:08 nb0032 kernel: RSP: 002b:00007f75717f8f50 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 Jul 21 13:22:08 nb0032 kernel: RAX: ffffffffffffffda RBX: 00007f75717f92c0 RCX: 00007f7590e81e9e Jul 21 13:22:08 nb0032 kernel: RDX: 0000000000000000 RSI: 0000559da84cff40 RDI: 00000000ffffff9c Jul 21 13:22:08 nb0032 kernel: RBP: 00007f75717f9330 R08: 0000000000000000 R09: 0000000000000001 Jul 21 13:22:08 nb0032 kernel: R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080000 Jul 21 13:22:08 nb0032 kernel: R13: 00007f75717f9380 R14: 00007f75717f9141 R15: 0000000000000001 Jul 21 13:22:08 nb0032 kernel: Code: 50 08 65 4c 03 05 0f d5 db 60 49 83 78 10 00 4d 8b 20 0f 84 09 01 00 00 4d 85 e4 0f 84 00 01 00 00 49 63 47 20 49 8b 3f 4c 01 e0 <48> 8b 18 49 33 9f 40 01 00 00 48 89 c1 48 0f c9 4c 89 e0 48 31 Jul 21 13:22:08 nb0032 kernel: RIP: kmem_cache_alloc+0x7a/0x1c0 RSP: ffffaa38c6b87c50 Jul 21 13:22:08 nb0032 kernel: CR2: ffff9df6410a7d7c Jul 21 13:22:08 nb0032 kernel: ---[ end trace ad56e9a460c882f5 ]--- Jul 21 13:22:13 nb0032 kernel: BUG: unable to handle kernel paging request at ffff9df6410a7d7c Jul 21 13:22:13 nb0032 kernel: IP: kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:13 nb0032 kernel: PGD 0 P4D 0 Jul 21 13:22:13 nb0032 kernel: Oops: 0000 [#5] SMP PTI Jul 21 13:22:13 nb0032 kernel: Modules linked in: ccm rfcomm xt_nat veth nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 pci_stub xt_tcpudp vboxpci(OE) vboxnetadp(OE) bridge stp llc vboxnetflt(OE) vboxdrv(OE) ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter aufs overlay cmac bnep cdc_ether usbnet uvcvideo videobuf2_vmalloc videobuf2_memops btusb videobuf2_v4l2 btrtl btbcm videobuf2_core btintel videodev bluetooth media snd_usb_audio r8152 snd_usbmidi_lib ecdh_generic mii binfmt_misc nls_iso8859_1 joydev hid_alps dell_smm_hwmon snd_hda_codec_hdmi snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core Jul 21 13:22:13 nb0032 kernel: dell_rbtn snd_soc_sst_dsp dell_laptop snd_soc_sst_ipc snd_soc_acpi intel_rapl snd_soc_core x86_pkg_temp_thermal intel_powerclamp arc4 snd_compress snd_hda_codec_realtek coretemp ac97_bus snd_hda_codec_generic kvm_intel snd_pcm_dmaengine snd_hda_intel snd_hda_codec kvm snd_hda_core snd_hwdep irqbypass snd_pcm intel_cstate intel_rapl_perf snd_seq_midi snd_seq_midi_event snd_rawmidi dell_wmi snd_seq dell_smbios dcdbas input_leds snd_seq_device intel_wmi_thunderbolt iwlmvm wmi_bmof snd_timer dell_wmi_descriptor serio_raw mac80211 snd iwlwifi soundcore rtsx_pci_ms cfg80211 memstick acpi_pad processor_thermal_device intel_hid int3403_thermal mac_hid sparse_keymap int3400_thermal int340x_thermal_zone intel_soc_dts_iosf acpi_thermal_rel intel_lpss_acpi intel_pch_thermal idma64 virt_dma mei_me Jul 21 13:22:13 nb0032 kernel: mei intel_lpss_pci shpchp intel_lpss sch_fq_codel parport_pc ppdev nfsd nfs_acl lockd grace auth_rpcgss sunrpc lp parport ip_tables x_tables autofs4 btrfs zstd_compress algif_skcipher af_alg dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i2c_algo_bit pcbc rtsx_pci_sdmmc drm_kms_helper syscopyarea e1000e sysfillrect sysimgblt fb_sys_fops ptp aesni_intel aes_x86_64 crypto_simd glue_helper cryptd pps_core drm ahci rtsx_pci libahci i2c_hid wmi hid video Jul 21 13:22:13 nb0032 kernel: CPU: 3 PID: 10440 Comm: DNS Resolver #7 Tainted: G D OE 4.15.0-151-generic #157-Ubuntu Jul 21 13:22:13 nb0032 kernel: Hardware name: Dell Inc. Latitude 7480/00F6D3, BIOS 1.11.1 07/12/2018 Jul 21 13:22:13 nb0032 kernel: RIP: 0010:kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:13 nb0032 kernel: RSP: 0018:ffffaa38d07e7c50 EFLAGS: 00010282 Jul 21 13:22:13 nb0032 kernel: RAX: ffff9df6410a7d7c RBX: 0000000000000000 RCX: ffff9d3c3791fa80 Jul 21 13:22:13 nb0032 kernel: RDX: 0000000000285354 RSI: 00000000014080c0 RDI: 00002cfbc183c370 Jul 21 13:22:13 nb0032 kernel: RBP: ffffaa38d07e7c80 R08: ffffca38bfdbc370 R09: 02807f2100000000 Jul 21 13:22:13 nb0032 kernel: R10: ffffaa38d07e7eb8 R11: 0000000000000000 R12: ffff9df6410a7d7c Jul 21 13:22:13 nb0032 kernel: R13: 00000000014080c0 R14: ffff9d3cdd125200 R15: ffff9d3c9892d800 Jul 21 13:22:13 nb0032 kernel: FS: 00007f3b19bff700(0000) GS:ffff9d3cfe580000(0000) knlGS:0000000000000000 Jul 21 13:22:13 nb0032 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 21 13:22:13 nb0032 kernel: CR2: ffff9df6410a7d7c CR3: 00000007c9492001 CR4: 00000000003626e0 Jul 21 13:22:13 nb0032 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 21 13:22:13 nb0032 kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jul 21 13:22:13 nb0032 kernel: Call Trace: Jul 21 13:22:13 nb0032 kernel: ? get_empty_filp+0x5c/0x1c0 Jul 21 13:22:13 nb0032 kernel: get_empty_filp+0x5c/0x1c0 Jul 21 13:22:13 nb0032 kernel: path_openat+0x40/0x18b0 Jul 21 13:22:13 nb0032 kernel: ? filename_lookup+0xf2/0x190 Jul 21 13:22:13 nb0032 kernel: ? __check_object_size+0xc8/0x1b0 Jul 21 13:22:13 nb0032 kernel: do_filp_open+0x9b/0x110 Jul 21 13:22:13 nb0032 kernel: ? _copy_to_user+0x26/0x30 Jul 21 13:22:13 nb0032 kernel: ? cp_new_stat+0x152/0x180 Jul 21 13:22:13 nb0032 kernel: ? __check_object_size+0xc8/0x1b0 Jul 21 13:22:13 nb0032 kernel: ? __alloc_fd+0x46/0x170 Jul 21 13:22:13 nb0032 kernel: do_sys_open+0x1ba/0x2c0 Jul 21 13:22:13 nb0032 kernel: ? do_sys_open+0x1ba/0x2c0 Jul 21 13:22:13 nb0032 kernel: SyS_openat+0x14/0x20 Jul 21 13:22:13 nb0032 kernel: do_syscall_64+0x73/0x130 Jul 21 13:22:13 nb0032 kernel: entry_SYSCALL_64_after_hwframe+0x41/0xa6 Jul 21 13:22:13 nb0032 kernel: RIP: 0033:0x7f3b4f8c8e81 Jul 21 13:22:13 nb0032 kernel: RSP: 002b:00007f3b19bfde40 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 Jul 21 13:22:13 nb0032 kernel: RAX: ffffffffffffffda RBX: 00007f3b12219800 RCX: 00007f3b4f8c8e81 Jul 21 13:22:13 nb0032 kernel: RDX: 0000000000080000 RSI: 00007f3b366c6e17 RDI: 00000000ffffff9c Jul 21 13:22:13 nb0032 kernel: RBP: 00007f3b366c6da3 R08: 0000000000000000 R09: 00007f3b366c6da6 Jul 21 13:22:13 nb0032 kernel: R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000008 Jul 21 13:22:13 nb0032 kernel: R13: 00007f3b366c6da3 R14: 00007f3b1d7b73c8 R15: 0000000000000002 Jul 21 13:22:13 nb0032 kernel: Code: 50 08 65 4c 03 05 0f d5 db 60 49 83 78 10 00 4d 8b 20 0f 84 09 01 00 00 4d 85 e4 0f 84 00 01 00 00 49 63 47 20 49 8b 3f 4c 01 e0 <48> 8b 18 49 33 9f 40 01 00 00 48 89 c1 48 0f c9 4c 89 e0 48 31 Jul 21 13:22:13 nb0032 kernel: RIP: kmem_cache_alloc+0x7a/0x1c0 RSP: ffffaa38d07e7c50 Jul 21 13:22:13 nb0032 kernel: CR2: ffff9df6410a7d7c Jul 21 13:22:13 nb0032 kernel: ---[ end trace ad56e9a460c882f6 ]--- Jul 21 13:22:17 nb0032 kernel: BUG: unable to handle kernel paging request at ffff9df6410a7d7c Jul 21 13:22:17 nb0032 kernel: IP: kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:17 nb0032 kernel: PGD 0 P4D 0 Jul 21 13:22:17 nb0032 kernel: Oops: 0000 [#6] SMP PTI Jul 21 13:22:17 nb0032 kernel: Modules linked in: ccm rfcomm xt_nat veth nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 pci_stub xt_tcpudp vboxpci(OE) vboxnetadp(OE) bridge stp llc vboxnetflt(OE) vboxdrv(OE) ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter aufs overlay cmac bnep cdc_ether usbnet uvcvideo videobuf2_vmalloc videobuf2_memops btusb videobuf2_v4l2 btrtl btbcm videobuf2_core btintel videodev bluetooth media snd_usb_audio r8152 snd_usbmidi_lib ecdh_generic mii binfmt_misc nls_iso8859_1 joydev hid_alps dell_smm_hwmon snd_hda_codec_hdmi snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core Jul 21 13:22:17 nb0032 kernel: dell_rbtn snd_soc_sst_dsp dell_laptop snd_soc_sst_ipc snd_soc_acpi intel_rapl snd_soc_core x86_pkg_temp_thermal intel_powerclamp arc4 snd_compress snd_hda_codec_realtek coretemp ac97_bus snd_hda_codec_generic kvm_intel snd_pcm_dmaengine snd_hda_intel snd_hda_codec kvm snd_hda_core snd_hwdep irqbypass snd_pcm intel_cstate intel_rapl_perf snd_seq_midi snd_seq_midi_event snd_rawmidi dell_wmi snd_seq dell_smbios dcdbas input_leds snd_seq_device intel_wmi_thunderbolt iwlmvm wmi_bmof snd_timer dell_wmi_descriptor serio_raw mac80211 snd iwlwifi soundcore rtsx_pci_ms cfg80211 memstick acpi_pad processor_thermal_device intel_hid int3403_thermal mac_hid sparse_keymap int3400_thermal int340x_thermal_zone intel_soc_dts_iosf acpi_thermal_rel intel_lpss_acpi intel_pch_thermal idma64 virt_dma mei_me Jul 21 13:22:17 nb0032 kernel: mei intel_lpss_pci shpchp intel_lpss sch_fq_codel parport_pc ppdev nfsd nfs_acl lockd grace auth_rpcgss sunrpc lp parport ip_tables x_tables autofs4 btrfs zstd_compress algif_skcipher af_alg dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i2c_algo_bit pcbc rtsx_pci_sdmmc drm_kms_helper syscopyarea e1000e sysfillrect sysimgblt fb_sys_fops ptp aesni_intel aes_x86_64 crypto_simd glue_helper cryptd pps_core drm ahci rtsx_pci libahci i2c_hid wmi hid video Jul 21 13:22:17 nb0032 kernel: CPU: 3 PID: 4985 Comm: Qt bearer threa Tainted: G D OE 4.15.0-151-generic #157-Ubuntu Jul 21 13:22:17 nb0032 kernel: Hardware name: Dell Inc. Latitude 7480/00F6D3, BIOS 1.11.1 07/12/2018 Jul 21 13:22:17 nb0032 kernel: RIP: 0010:kmem_cache_alloc+0x7a/0x1c0 Jul 21 13:22:17 nb0032 kernel: RSP: 0018:ffffaa38c6f67df0 EFLAGS: 00010282 Jul 21 13:22:17 nb0032 kernel: RAX: ffff9df6410a7d7c RBX: 0000000000000000 RCX: ffffffff9ff0f280 Jul 21 13:22:17 nb0032 kernel: RDX: 0000000000285358 RSI: 00000000014080c0 RDI: 00002cfbc183c370 Jul 21 13:22:17 nb0032 kernel: RBP: ffffaa38c6f67e20 R08: ffffca38bfdbc370 R09: fffffffffffe0000 Jul 21 13:22:17 nb0032 kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffff9df6410a7d7c Jul 21 13:22:17 nb0032 kernel: R13: 00000000014080c0 R14: ffff9d3cdd125200 R15: ffff9d3c9892d800 Jul 21 13:22:17 nb0032 kernel: FS: 00007fcc2e7fc700(0000) GS:ffff9d3cfe580000(0000) knlGS:0000000000000000 Jul 21 13:22:17 nb0032 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 21 13:22:17 nb0032 kernel: CR2: ffff9df6410a7d7c CR3: 000000079d1a0001 CR4: 00000000003626e0 Jul 21 13:22:17 nb0032 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 21 13:22:17 nb0032 kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jul 21 13:22:17 nb0032 kernel: Call Trace: Jul 21 13:22:17 nb0032 kernel: ? get_empty_filp+0x5c/0x1c0 Jul 21 13:22:17 nb0032 kernel: get_empty_filp+0x5c/0x1c0 Jul 21 13:22:17 nb0032 kernel: ? __d_instantiate+0x39/0xf0 Jul 21 13:22:17 nb0032 kernel: alloc_file+0x20/0xe0 Jul 21 13:22:17 nb0032 kernel: sock_alloc_file+0xa0/0x150 Jul 21 13:22:17 nb0032 kernel: sock_map_fd+0x32/0x80 Jul 21 13:22:17 nb0032 kernel: SyS_socket+0x6a/0x90 Jul 21 13:22:17 nb0032 kernel: do_syscall_64+0x73/0x130 Jul 21 13:22:17 nb0032 kernel: entry_SYSCALL_64_after_hwframe+0x41/0xa6 Jul 21 13:22:17 nb0032 kernel: RIP: 0033:0x7fcc4e5f4d57 Jul 21 13:22:17 nb0032 kernel: RSP: 002b:00007fcc2e7facc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 Jul 21 13:22:17 nb0032 kernel: RAX: ffffffffffffffda RBX: 00007fcc2e7fae18 RCX: 00007fcc4e5f4d57 Jul 21 13:22:17 nb0032 kernel: RDX: 0000000000000000 RSI: 0000000000080003 RDI: 0000000000000010 Jul 21 13:22:17 nb0032 kernel: RBP: 00007fcc2e7fadb0 R08: 0000000000000000 R09: 0000000000000000 Jul 21 13:22:17 nb0032 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcc2e7fb040 Jul 21 13:22:17 nb0032 kernel: R13: 0000000000000001 R14: 00005645f9b2ada0 R15: 00007fcc2e7faf18 Jul 21 13:22:17 nb0032 kernel: Code: 50 08 65 4c 03 05 0f d5 db 60 49 83 78 10 00 4d 8b 20 0f 84 09 01 00 00 4d 85 e4 0f 84 00 01 00 00 49 63 47 20 49 8b 3f 4c 01 e0 <48> 8b 18 49 33 9f 40 01 00 00 48 89 c1 48 0f c9 4c 89 e0 48 31 Jul 21 13:22:18 nb0032 kernel: RIP: kmem_cache_alloc+0x7a/0x1c0 RSP: ffffaa38c6f67df0 Jul 21 13:22:18 nb0032 kernel: CR2: ffff9df6410a7d7c Jul 21 13:22:18 nb0032 kernel: ---[ end trace ad56e9a460c882f7 ]--- Jul 21 16:49:21 nb0032 kernel: BUG: unable to handle kernel paging request at 00000070f906baff Jul 21 16:49:21 nb0032 kernel: IP: __kmalloc_node_track_caller+0x142/0x2b0 Jul 21 16:49:21 nb0032 kernel: PGD 0 P4D 0 Jul 21 16:49:21 nb0032 kernel: Oops: 0000 [#34] SMP PTI Jul 21 16:49:21 nb0032 kernel: Modules linked in: ccm rfcomm veth xt_nat nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE ) xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter aufs overlay cmac bnep binfmt_misc cdc_ether usbnet snd_usb_audio r8152 snd_usbmidi_lib mii nls_iso8859_1 uvcvideo videobuf2_vmalloc btusb videobuf2_memops btrtl videobuf2_v4l2 btbcm videobuf2_core btintel bluetooth videodev media ecdh_generic joydev snd_hda_codec_hdmi snd_soc_skl hid_alps snd_soc_skl_ipc snd_hda_ext_core snd_soc_sst_dsp Jul 21 16:49:21 nb0032 kernel: snd_soc_sst_ipc snd_soc_acpi snd_hda_codec_realtek snd_soc_core snd_hda_codec_generic snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep dell_rbtn snd_pcm dell_laptop intel_rapl arc4 dell_smm_hwmon x86_pkg_temp_thermal intel_powerclamp coretemp snd_seq_midi snd_seq_midi_event kvm_intel snd_rawmidi kvm irqbypass snd_seq snd_seq_device iwlmvm intel_cstate snd_timer intel_rapl_perf mac80211 dell_wmi input_leds serio_raw dell_smbios dcdbas iwlwifi snd intel_wmi_thunderbolt wmi_bmof dell_wmi_descriptor soundcore cfg80211 rtsx_pci_ms memstick int3403_thermal processor_thermal_device int340x_thermal_zone intel_hid int3400_thermal sparse_keymap intel_lpss_acpi acpi_pad acpi_thermal_rel intel_soc_dts_iosf idma64 mei_me virt_dma mei intel_pch_thermal intel_lpss_pci Jul 21 16:49:21 nb0032 kernel: shpchp intel_lpss mac_hid nfsd nfs_acl lockd sch_fq_codel grace auth_rpcgss sunrpc parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs zstd_compress algif_skcipher af_alg dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rtsx_pci_sdmmc pcbc i915 aesni_intel aes_x86_64 crypto_simd i2c_algo_bit glue_helper cryptd drm_kms_helper syscopyarea e1000e sysfillrect sysimgblt fb_sys_fops ptp ahci pps_core i2c_hid rtsx_pci drm libahci wmi hid video Jul 21 16:49:21 nb0032 kernel: CPU: 3 PID: 6867 Comm: reboot Tainted: G D OE 4.15.0-151-generic #157-Ubuntu Jul 21 16:49:21 nb0032 kernel: Hardware name: Dell Inc. Latitude 7480/00F6D3, BIOS 1.11.1 07/12/2018 Jul 21 16:49:21 nb0032 kernel: RIP: 0010:__kmalloc_node_track_caller+0x142/0x2b0 Jul 21 16:49:21 nb0032 kernel: RSP: 0018:ffffac5c03a87a98 EFLAGS: 00010206 Jul 21 16:49:21 nb0032 kernel: RAX: 00000070f906baff RBX: 0000000000100000 RCX: ffffffffa925a077 Jul 21 16:49:21 nb0032 kernel: RDX: 000000000000919b RSI: 0000000000000000 RDI: 0000321a8183e740 Jul 21 16:49:21 nb0032 kernel: RBP: ffffac5c03a87ad8 R08: ffffcc5bffdbe740 R09: ffff9a4136b0f200 Jul 21 16:49:21 nb0032 kernel: R10: ffffac5c03a87d48 R11: ffff9a415d803080 R12: 00000000015102c0 Jul 21 16:49:21 nb0032 kernel: R13: 0000000000000200 R14: 00000000ffffffff R15: 00000070f906baff Jul 21 16:49:21 nb0032 kernel: FS: 00007fd1ebba5940(0000) GS:ffff9a417e580000(0000) knlGS:0000000000000000 Jul 21 16:49:21 nb0032 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 21 16:49:21 nb0032 kernel: CR2: 00000070f906baff CR3: 000000074b39e004 CR4: 00000000003606e0 Jul 21 16:49:21 nb0032 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 21 16:49:21 nb0032 kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jul 21 16:49:21 nb0032 kernel: Call Trace: Jul 21 16:49:21 nb0032 kernel: ? __slab_free+0x153/0x2d0 Jul 21 16:49:21 nb0032 kernel: ? __alloc_skb+0x87/0x1d0 Jul 21 16:49:21 nb0032 kernel: __kmalloc_reserve.isra.43+0x31/0x90 Jul 21 16:49:21 nb0032 kernel: __alloc_skb+0x87/0x1d0 Jul 21 16:49:21 nb0032 kernel: alloc_skb_with_frags+0x56/0x1b0 Jul 21 16:49:21 nb0032 kernel: ? wait_woken+0x80/0x80 Jul 21 16:49:21 nb0032 kernel: sock_alloc_send_pskb+0x1f2/0x220 Jul 21 16:49:21 nb0032 kernel: ? _cond_resched+0x19/0x40 Jul 21 16:49:21 nb0032 kernel: ? wait_for_unix_gc+0x37/0xb0 Jul 21 16:49:21 nb0032 kernel: unix_stream_sendmsg+0x1b6/0x390 Jul 21 16:49:21 nb0032 kernel: sock_sendmsg+0x3e/0x50 Jul 21 16:49:21 nb0032 kernel: ___sys_sendmsg+0x2a0/0x2f0 Jul 21 16:49:21 nb0032 kernel: ? __handle_mm_fault+0xce1/0xff0 Jul 21 16:49:21 nb0032 kernel: ? _copy_to_user+0x26/0x30 Jul 21 16:49:21 nb0032 kernel: ? put_timespec64+0x3f/0x60 Jul 21 16:49:21 nb0032 kernel: __sys_sendmsg+0x54/0x90 Jul 21 16:49:21 nb0032 kernel: ? __sys_sendmsg+0x54/0x90 ul 21 16:49:21 nb0032 kernel: SyS_sendmsg+0x12/0x20 Jul 21 16:49:21 nb0032 kernel: do_syscall_64+0x73/0x130 Jul 21 16:49:21 nb0032 kernel: entry_SYSCALL_64_after_hwframe+0x41/0xa6 Jul 21 16:49:21 nb0032 kernel: RIP: 0033:0x7fd1eb6f7b94 Jul 21 16:49:21 nb0032 kernel: RSP: 002b:00007ffce71879a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e Jul 21 16:49:21 nb0032 kernel: RAX: ffffffffffffffda RBX: 000056185e2529d0 RCX: 00007fd1eb6f7b94 Jul 21 16:49:21 nb0032 kernel: RDX: 0000000000004040 RSI: 00007ffce71879f0 RDI: 0000000000000003 Jul 21 16:49:21 nb0032 kernel: RBP: 00007ffce7187a60 R08: 0000000000000000 R09: 0000000000000000 Jul 21 16:49:21 nb0032 kernel: R10: 000056185e24e010 R11: 0000000000000246 R12: 00007ffce71879b0 Jul 21 16:49:21 nb0032 kernel: R13: 0000000000000002 R14: 00007ffce7187b00 R15: 000056185e24fe20 Jul 21 16:49:21 nb0032 kernel: Code: 4c 89 df 4c 89 5d c8 e8 bd ae 01 00 49 89 c1 4c 8b 5d c8 4d 85 c9 0f 85 35 ff ff ff 45 31 ff eb 4e 49 63 41 20 49 8b 39 4c 01 f8 <48> 8b 18 49 33 99 40 01 00 00 48 89 c1 48 0f c9 4c 89 f8 48 31 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-147-generic 4.15.0-147.151 ProcVersionSignature: Ubuntu 4.15.0-147.151-generic 4.15.18 Uname: Linux 4.15.0-147-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.24 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: e.kelm 4093 F.... pulseaudio CurrentDesktop: KDE Date: Wed Jul 21 17:13:51 2021 HibernationDevice: RESUME=UUID=02b27246-151f-4871-aa21-a2ac8223cda0 InstallationDate: Installed on 2017-08-19 (1432 days ago) InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412) MachineType: Dell Inc. Latitude 7480 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-147-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-147-generic N/A linux-backports-modules-4.15.0-147-generic N/A linux-firmware 1.173.20 SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-09-24 (1031 days ago) WifiSyslog: dmi.bios.date: 07/12/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.11.1 dmi.board.name: 00F6D3 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.11.1:bd07/12/2018:svnDellInc.:pnLatitude7480:pvr:rvnDellInc.:rn00F6D3:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: Latitude dmi.product.name: Latitude 7480 dmi.sys.vendor: Dell Inc. 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