Private bug reported:
What did I do: Kept doing
sudo hciconfig hci0 down && sudo rmmod btusb && sudo modprobe btusb &&
sudo hciconfig hci0 up
in order to maybe-force bluetooth device to work and detect a mouse
[ +25,971445] ------------[ cut here ]------------
[ +0,000003] kernel BUG at mm/slub.c:307!
[ +0,000009] invalid opcode: 0000 [#1] SMP PTI
[ +0,000004] CPU: 3 PID: 3427715 Comm: hciconfig Not tainted 5.4.0-153-generic
#170-Ubuntu
[ +0,000002] Hardware name: Dell Inc. Latitude E7440/03HFCG, BIOS A28
06/13/2019
[ +0,000007] RIP: 0010:__slab_free+0x199/0x360
[ +0,000003] Code: 00 48 89 c7 fa 66 0f 1f 44 00 00 f0 49 0f ba 2c 24 00 72 79
4d 3b 6c 24 20 74 11 49 0f ba 34 24 00 57 9d 0f 1f 44 00 00 eb 9f <0f> 0b 49 3b
5c 24 28 75 e8 48 8b 44 24 28 49 89 4c 24 28 49 89 44
[ +0,000003] RSP: 0018:ffffa8c143077b70 EFLAGS: 00010246
[ +0,000003] RAX: ffff985cca7b0000 RBX: 000000008010000c RCX: ffff985cca7b0000
[ +0,000002] RDX: ffff985cca7b0000 RSI: ffffc9f24f29ec00 RDI: ffff985d1cdab180
[ +0,000003] RBP: ffffa8c143077c20 R08: 0000000000000001 R09: ffffffff89cec21e
[ +0,000002] R10: ffff985cca7b0000 R11: 0000000000000001 R12: ffffc9f24f29ec00
[ +0,000002] R13: ffff985cca7b0000 R14: ffff985d1cdab180 R15: ffff985d1cdab180
[ +0,000002] FS: 00007ffa358b3580(0000) GS:ffff985d1eb80000(0000)
knlGS:0000000000000000
[ +0,000003] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ +0,000002] CR2: 00007f2b5c151b90 CR3: 00000001c27c4004 CR4: 00000000001606e0
[ +0,000002] Call Trace:
[ +0,000009] ? finish_wait+0x59/0x70
[ +0,000029] ? __hci_cmd_sync_ev.part.0+0x1c9/0x1e0 [bluetooth]
[ +0,000005] ? __wake_up_pollfree+0x40/0x40
[ +0,000006] ? kfree_skbmem+0x4e/0x90
[ +0,000003] kmem_cache_free+0x288/0x2b0
[ +0,000008] ? btusb_shutdown_intel+0x60/0xa0 [btusb]
[ +0,000004] kfree_skbmem+0x4e/0x90
[ +0,000003] kfree_skb+0x3a/0xb0
[ +0,000005] btusb_shutdown_intel+0x60/0xa0 [btusb]
[ +0,000017] hci_dev_do_close+0x40c/0x520 [bluetooth]
[ +0,000018] hci_dev_close+0x42/0xa0 [bluetooth]
[ +0,000020] hci_sock_ioctl+0x112/0x460 [bluetooth]
[ +0,000005] sock_do_ioctl+0x43/0x140
[ +0,000004] sock_ioctl+0x24f/0x3c0
[ +0,000007] do_vfs_ioctl+0x407/0x670
[ +0,000004] ? do_user_addr_fault+0x216/0x450
[ +0,000003] ksys_ioctl+0x67/0x90
[ +0,000003] __x64_sys_ioctl+0x1a/0x20
[ +0,000003] do_syscall_64+0x57/0x190
[ +0,000003] entry_SYSCALL_64_after_hwframe+0x5c/0xc1
[ +0,000003] RIP: 0033:0x7ffa357d43ab
[ +0,000002] Code: 0f 1e fa 48 8b 05 e5 7a 0d 00 64 c7 00 26 00 00 00 48 c7 c0
ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0
ff ff 73 01 c3 48 8b 0d b5 7a 0d 00 f7 d8 64 89 01 48
[ +0,000002] RSP: 002b:00007ffc31d81328 EFLAGS: 00000206 ORIG_RAX:
0000000000000010
[ +0,000002] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ffa357d43ab
[ +0,000001] RDX: 0000000000000000 RSI: 00000000400448ca RDI: 0000000000000003
[ +0,000001] RBP: 0000000000000020 R08: 1999999999999999 R09: 0000000000000000
[ +0,000002] R10: 00007ffa3585bac0 R11: 0000000000000206 R12: 0000000000000000
[ +0,000001] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffc31d817ce
[ +0,000002] Modules linked in: btusb cdc_acm ufs qnx4 hfsplus hfs minix ntfs
msdos jfs xfs cpuid veth uhid sctp hid_generic usbhid hid rfcomm xt_conntrack
xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype
iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
bpfilter br_netfilter bridge stp llc ccm aufs cmac algif_hash algif_skcipher
overlay af_alg bnep nls_iso8859_1 dm_multipath scsi_dh_rdac scsi_dh_emc
scsi_dh_alua pn544_mei mei_phy intel_rapl_msr pn544 hci nfc mei_hdcp
dell_laptop dell_smm_hwmon intel_rapl_common x86_pkg_temp_thermal
intel_powerclamp coretemp snd_hda_codec_realtek snd_hda_codec_generic
ledtrig_audio kvm_intel snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg kvm
snd_hda_codec snd_hda_core snd_hwdep rapl binfmt_misc intel_cstate snd_pcm
btrtl btbcm snd_seq_midi btintel snd_seq_midi_event bluetooth snd_rawmidi
uvcvideo ecdh_generic ecc videobuf2_vmalloc videobuf2_memops videobuf2_v4l2
videobuf2_common iwlmvm snd_seq
[ +0,000037] mac80211 videodev mc libarc4 iwlwifi dell_wmi snd_seq_device
snd_timer dell_smbios dcdbas joydev input_leds wmi_bmof sparse_keymap
dell_wmi_descriptor cfg80211 serio_raw snd mei_me mei soundcore dell_smo8800
mac_hid dell_rbtn sch_fq_codel msr parport_pc ppdev ramoops lp parport
reed_solomon sunrpc efi_pstore ip_tables x_tables autofs4 btrfs zstd_compress
dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor
async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear dm_mirror
dm_region_hash dm_log crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i915
aesni_intel crypto_simd cryptd glue_helper i2c_algo_bit drm_kms_helper
syscopyarea sysfillrect sysimgblt ahci psmouse libahci i2c_i801 sdhci_pci
fb_sys_fops cqhci lpc_ich sdhci drm e1000e wmi video [last unloaded: btusb]
[ +0,000055] ---[ end trace a13cf5899d63b9c9 ]---
[ +0,168382] RIP: 0010:__slab_free+0x199/0x360
[ +0,000005] Code: 00 48 89 c7 fa 66 0f 1f 44 00 00 f0 49 0f ba 2c 24 00 72 79
4d 3b 6c 24 20 74 11 49 0f ba 34 24 00 57 9d 0f 1f 44 00 00 eb 9f <0f> 0b 49 3b
5c 24 28 75 e8 48 8b 44 24 28 49 89 4c 24 28 49 89 44
[ +0,000004] RSP: 0018:ffffa8c143077b70 EFLAGS: 00010246
[ +0,000003] RAX: ffff985cca7b0000 RBX: 000000008010000c RCX: ffff985cca7b0000
[ +0,000001] RDX: ffff985cca7b0000 RSI: ffffc9f24f29ec00 RDI: ffff985d1cdab180
[ +0,000001] RBP: ffffa8c143077c20 R08: 0000000000000001 R09: ffffffff89cec21e
[ +0,000001] R10: ffff985cca7b0000 R11: 0000000000000001 R12: ffffc9f24f29ec00
[ +0,000002] R13: ffff985cca7b0000 R14: ffff985d1cdab180 R15: ffff985d1cdab180
[ +0,000002] FS: 00007ffa358b3580(0000) GS:ffff985d1eb80000(0000)
knlGS:0000000000000000
[ +0,000001] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ +0,000002] CR2: 00007f2b5c151b90 CR3: 00000001c27c4004 CR4: 00000000001606e0
[ +2,178484] Bluetooth: hci0: command 0x200c tx timeout
[ +2,015948] Bluetooth: hci0: command 0x2005 tx timeout
[ +2,015964] Bluetooth: hci0: command 0x200b tx timeout
[Ιουλ24 05:19] Bluetooth: hci0: command 0x200c tx timeout
[ +0,447951] Bluetooth: hci0: failed to disable LE scan: status 0x1f
[ +1,567994] Bluetooth: hci0: command 0x0401 tx timeout
[ +0,000010] Bluetooth: hci0: No way to reset. Ignoring and continuing
[ +2,015914] Bluetooth: hci0: command 0x200c tx timeout
[ +0,000008] Bluetooth: hci0: No way to reset. Ignoring and continuing
[ +1,055968] Bluetooth: hci0: HCI reset during shutdown failed
[ +0,922896] usbcore: deregistering interface driver btusb
[ +0,070937] usbcore: registered new interface driver btusb
[ +0,014135] Bluetooth: hci1: read Intel version: 370710018002030d57
[ +0,000004] Bluetooth: hci1: Intel device is already patched. patch num: 57
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-generic 5.4.0.156.152
ProcVersionSignature: Ubuntu 5.4.0-153.170-generic 5.4.235
Uname: Linux 5.4.0-153-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: stdedos 2850 F.... pulseaudio
/dev/snd/controlC0: stdedos 2850 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Mon Aug 28 12:25:37 2023
EcryptfsInUse: Yes
InstallationDate: Installed on 2019-05-09 (1571 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
MachineType: Dell Inc. Latitude E7440
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-153-generic
root=/dev/mapper/ubuntu--vg-Ubuntu1804_Main ro net.ifnames=0 biosdevname=0
splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-153-generic N/A
linux-backports-modules-5.4.0-153-generic N/A
linux-firmware 1.187.39
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2021-04-08 (871 days ago)
dmi.bios.date: 06/13/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A28
dmi.board.name: 03HFCG
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA28:bd06/13/2019:svnDellInc.:pnLatitudeE7440:pvr00:rvnDellInc.:rn03HFCG:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E7440
dmi.product.sku: 05CB
dmi.product.version: 00
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal third-party-packages
** Information type changed from Public to Public Security
** Information type changed from Public Security to Private
--
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/2033265
Title:
kernel BUG at mm/slub.c:307
Status in linux package in Ubuntu:
New
Bug description:
What did I do: Kept doing
sudo hciconfig hci0 down && sudo rmmod btusb && sudo modprobe btusb &&
sudo hciconfig hci0 up
in order to maybe-force bluetooth device to work and detect a mouse
[ +25,971445] ------------[ cut here ]------------
[ +0,000003] kernel BUG at mm/slub.c:307!
[ +0,000009] invalid opcode: 0000 [#1] SMP PTI
[ +0,000004] CPU: 3 PID: 3427715 Comm: hciconfig Not tainted
5.4.0-153-generic #170-Ubuntu
[ +0,000002] Hardware name: Dell Inc. Latitude E7440/03HFCG, BIOS A28
06/13/2019
[ +0,000007] RIP: 0010:__slab_free+0x199/0x360
[ +0,000003] Code: 00 48 89 c7 fa 66 0f 1f 44 00 00 f0 49 0f ba 2c 24 00 72
79 4d 3b 6c 24 20 74 11 49 0f ba 34 24 00 57 9d 0f 1f 44 00 00 eb 9f <0f> 0b 49
3b 5c 24 28 75 e8 48 8b 44 24 28 49 89 4c 24 28 49 89 44
[ +0,000003] RSP: 0018:ffffa8c143077b70 EFLAGS: 00010246
[ +0,000003] RAX: ffff985cca7b0000 RBX: 000000008010000c RCX:
ffff985cca7b0000
[ +0,000002] RDX: ffff985cca7b0000 RSI: ffffc9f24f29ec00 RDI:
ffff985d1cdab180
[ +0,000003] RBP: ffffa8c143077c20 R08: 0000000000000001 R09:
ffffffff89cec21e
[ +0,000002] R10: ffff985cca7b0000 R11: 0000000000000001 R12:
ffffc9f24f29ec00
[ +0,000002] R13: ffff985cca7b0000 R14: ffff985d1cdab180 R15:
ffff985d1cdab180
[ +0,000002] FS: 00007ffa358b3580(0000) GS:ffff985d1eb80000(0000)
knlGS:0000000000000000
[ +0,000003] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ +0,000002] CR2: 00007f2b5c151b90 CR3: 00000001c27c4004 CR4:
00000000001606e0
[ +0,000002] Call Trace:
[ +0,000009] ? finish_wait+0x59/0x70
[ +0,000029] ? __hci_cmd_sync_ev.part.0+0x1c9/0x1e0 [bluetooth]
[ +0,000005] ? __wake_up_pollfree+0x40/0x40
[ +0,000006] ? kfree_skbmem+0x4e/0x90
[ +0,000003] kmem_cache_free+0x288/0x2b0
[ +0,000008] ? btusb_shutdown_intel+0x60/0xa0 [btusb]
[ +0,000004] kfree_skbmem+0x4e/0x90
[ +0,000003] kfree_skb+0x3a/0xb0
[ +0,000005] btusb_shutdown_intel+0x60/0xa0 [btusb]
[ +0,000017] hci_dev_do_close+0x40c/0x520 [bluetooth]
[ +0,000018] hci_dev_close+0x42/0xa0 [bluetooth]
[ +0,000020] hci_sock_ioctl+0x112/0x460 [bluetooth]
[ +0,000005] sock_do_ioctl+0x43/0x140
[ +0,000004] sock_ioctl+0x24f/0x3c0
[ +0,000007] do_vfs_ioctl+0x407/0x670
[ +0,000004] ? do_user_addr_fault+0x216/0x450
[ +0,000003] ksys_ioctl+0x67/0x90
[ +0,000003] __x64_sys_ioctl+0x1a/0x20
[ +0,000003] do_syscall_64+0x57/0x190
[ +0,000003] entry_SYSCALL_64_after_hwframe+0x5c/0xc1
[ +0,000003] RIP: 0033:0x7ffa357d43ab
[ +0,000002] Code: 0f 1e fa 48 8b 05 e5 7a 0d 00 64 c7 00 26 00 00 00 48 c7
c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48 8b 0d b5 7a 0d 00 f7 d8 64 89 01 48
[ +0,000002] RSP: 002b:00007ffc31d81328 EFLAGS: 00000206 ORIG_RAX:
0000000000000010
[ +0,000002] RAX: ffffffffffffffda RBX: 0000000000000000 RCX:
00007ffa357d43ab
[ +0,000001] RDX: 0000000000000000 RSI: 00000000400448ca RDI:
0000000000000003
[ +0,000001] RBP: 0000000000000020 R08: 1999999999999999 R09:
0000000000000000
[ +0,000002] R10: 00007ffa3585bac0 R11: 0000000000000206 R12:
0000000000000000
[ +0,000001] R13: 0000000000000001 R14: 0000000000000003 R15:
00007ffc31d817ce
[ +0,000002] Modules linked in: btusb cdc_acm ufs qnx4 hfsplus hfs minix
ntfs msdos jfs xfs cpuid veth uhid sctp hid_generic usbhid hid rfcomm
xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo
xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6
nf_defrag_ipv4 bpfilter br_netfilter bridge stp llc ccm aufs cmac algif_hash
algif_skcipher overlay af_alg bnep nls_iso8859_1 dm_multipath scsi_dh_rdac
scsi_dh_emc scsi_dh_alua pn544_mei mei_phy intel_rapl_msr pn544 hci nfc
mei_hdcp dell_laptop dell_smm_hwmon intel_rapl_common x86_pkg_temp_thermal
intel_powerclamp coretemp snd_hda_codec_realtek snd_hda_codec_generic
ledtrig_audio kvm_intel snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg kvm
snd_hda_codec snd_hda_core snd_hwdep rapl binfmt_misc intel_cstate snd_pcm
btrtl btbcm snd_seq_midi btintel snd_seq_midi_event bluetooth snd_rawmidi
uvcvideo ecdh_generic ecc videobuf2_vmalloc videobuf2_memops videobuf2_v4l2
videobuf2_common iwlmvm snd_seq
[ +0,000037] mac80211 videodev mc libarc4 iwlwifi dell_wmi snd_seq_device
snd_timer dell_smbios dcdbas joydev input_leds wmi_bmof sparse_keymap
dell_wmi_descriptor cfg80211 serio_raw snd mei_me mei soundcore dell_smo8800
mac_hid dell_rbtn sch_fq_codel msr parport_pc ppdev ramoops lp parport
reed_solomon sunrpc efi_pstore ip_tables x_tables autofs4 btrfs zstd_compress
dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor
async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear dm_mirror
dm_region_hash dm_log crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i915
aesni_intel crypto_simd cryptd glue_helper i2c_algo_bit drm_kms_helper
syscopyarea sysfillrect sysimgblt ahci psmouse libahci i2c_i801 sdhci_pci
fb_sys_fops cqhci lpc_ich sdhci drm e1000e wmi video [last unloaded: btusb]
[ +0,000055] ---[ end trace a13cf5899d63b9c9 ]---
[ +0,168382] RIP: 0010:__slab_free+0x199/0x360
[ +0,000005] Code: 00 48 89 c7 fa 66 0f 1f 44 00 00 f0 49 0f ba 2c 24 00 72
79 4d 3b 6c 24 20 74 11 49 0f ba 34 24 00 57 9d 0f 1f 44 00 00 eb 9f <0f> 0b 49
3b 5c 24 28 75 e8 48 8b 44 24 28 49 89 4c 24 28 49 89 44
[ +0,000004] RSP: 0018:ffffa8c143077b70 EFLAGS: 00010246
[ +0,000003] RAX: ffff985cca7b0000 RBX: 000000008010000c RCX:
ffff985cca7b0000
[ +0,000001] RDX: ffff985cca7b0000 RSI: ffffc9f24f29ec00 RDI:
ffff985d1cdab180
[ +0,000001] RBP: ffffa8c143077c20 R08: 0000000000000001 R09:
ffffffff89cec21e
[ +0,000001] R10: ffff985cca7b0000 R11: 0000000000000001 R12:
ffffc9f24f29ec00
[ +0,000002] R13: ffff985cca7b0000 R14: ffff985d1cdab180 R15:
ffff985d1cdab180
[ +0,000002] FS: 00007ffa358b3580(0000) GS:ffff985d1eb80000(0000)
knlGS:0000000000000000
[ +0,000001] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ +0,000002] CR2: 00007f2b5c151b90 CR3: 00000001c27c4004 CR4:
00000000001606e0
[ +2,178484] Bluetooth: hci0: command 0x200c tx timeout
[ +2,015948] Bluetooth: hci0: command 0x2005 tx timeout
[ +2,015964] Bluetooth: hci0: command 0x200b tx timeout
[Ιουλ24 05:19] Bluetooth: hci0: command 0x200c tx timeout
[ +0,447951] Bluetooth: hci0: failed to disable LE scan: status 0x1f
[ +1,567994] Bluetooth: hci0: command 0x0401 tx timeout
[ +0,000010] Bluetooth: hci0: No way to reset. Ignoring and continuing
[ +2,015914] Bluetooth: hci0: command 0x200c tx timeout
[ +0,000008] Bluetooth: hci0: No way to reset. Ignoring and continuing
[ +1,055968] Bluetooth: hci0: HCI reset during shutdown failed
[ +0,922896] usbcore: deregistering interface driver btusb
[ +0,070937] usbcore: registered new interface driver btusb
[ +0,014135] Bluetooth: hci1: read Intel version: 370710018002030d57
[ +0,000004] Bluetooth: hci1: Intel device is already patched. patch num: 57
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-generic 5.4.0.156.152
ProcVersionSignature: Ubuntu 5.4.0-153.170-generic 5.4.235
Uname: Linux 5.4.0-153-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: stdedos 2850 F.... pulseaudio
/dev/snd/controlC0: stdedos 2850 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Mon Aug 28 12:25:37 2023
EcryptfsInUse: Yes
InstallationDate: Installed on 2019-05-09 (1571 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64
(20190210)
MachineType: Dell Inc. Latitude E7440
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-153-generic
root=/dev/mapper/ubuntu--vg-Ubuntu1804_Main ro net.ifnames=0 biosdevname=0
splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-153-generic N/A
linux-backports-modules-5.4.0-153-generic N/A
linux-firmware 1.187.39
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2021-04-08 (871 days ago)
dmi.bios.date: 06/13/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A28
dmi.board.name: 03HFCG
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA28:bd06/13/2019:svnDellInc.:pnLatitudeE7440:pvr00:rvnDellInc.:rn03HFCG:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E7440
dmi.product.sku: 05CB
dmi.product.version: 00
dmi.sys.vendor: Dell Inc.
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