My laptop always seemed to work fine until sometime around when I upgraded to 18.04. Since then, it freezes every few hours or so. The screen just stays as it was just not updating, and sysrq+ctrl+b doesn't do anything visible, nor does ctrl+alt+f1.
I got this laptop second hand not that long ago and ran a full memory check without errors. I am seeing many of these in the kern.log though:
...and also sonetimes this:Code:Jun 24 05:28:54 Merovingian kernel: [ 2907.388060] Bluetooth: hci0: last event is not cmd complete (0x0f)
It's using an Intel graphic card, and it doesn't feel very hot when it crashes, so I don't think it's a proprietary driver blob or overheating.Code:Jun 24 05:10:16 Merovingian kernel: [ 1789.505176] Corrupted low memory at 000000007297e50b (12d8 phys) = 909000000000000 Jun 24 05:10:16 Merovingian kernel: [ 1789.505190] Corrupted low memory at 00000000b1af975e (12e0 phys) = 00003600 Jun 24 05:10:16 Merovingian kernel: [ 1789.505223] ------------[ cut here ]------------ Jun 24 05:10:16 Merovingian kernel: [ 1789.505226] Memory corruption detected in low memory Jun 24 05:10:16 Merovingian kernel: [ 1789.505251] WARNING: CPU: 1 PID: 1672 at /build/linux-uT8zSN/linux-4.15.0/arch/x86/kernel/check.c:142 check_for_bios_corruption+0xab/0x100 Jun 24 05:10:16 Merovingian kernel: [ 1789.505254] Modules linked in: rfcomm cmac bnep nls_iso8859_1 intel_rapl intel_soc_dts_thermal intel_soc_dts_iosf intel_powerclamp coretemp uvcvideo snd_hda_codec_hdmi videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_hda_codec_realtek snd_hda_codec_generic videobuf2_core videodev media btusb btrtl kvm snd_hda_intel snd_hda_codec irqbypass snd_hda_core snd_hwdep punit_atom_debug snd_pcm snd_seq_midi snd_seq_midi_event crct10dif_pclmul crc32_pclmul hci_uart ghash_clmulni_intel btbcm snd_rawmidi wl(POE) snd_seq snd_seq_device snd_timer snd rtsx_pci_ms memstick hp_wmi input_leds sparse_keymap wmi_bmof joydev btqca cryptd btintel intel_cstate soundcore bluetooth cfg80211 serio_raw shpchp lpc_ich hp_accel lis3lv02d ecdh_generic mei_txe mac_hid input_polldev pwm_lpss_platform mei pwm_lpss hp_wireless Jun 24 05:10:16 Merovingian kernel: [ 1789.505417] rfkill_gpio sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid i915 rtsx_pci_sdmmc i2c_algo_bit drm_kms_helper syscopyarea sysfillrect r8169 psmouse mii sysimgblt fb_sys_fops ahci drm rtsx_pci libahci wmi i2c_hid video hid Jun 24 05:10:16 Merovingian kernel: [ 1789.505497] CPU: 1 PID: 1672 Comm: kworker/1:0 Tainted: P OE 4.15.0-23-generic #25-Ubuntu Jun 24 05:10:16 Merovingian kernel: [ 1789.505501] Hardware name: Hewlett-Packard HP Pavilion 14 Notebook PC /227A, BIOS F.42 03/18/2015 Jun 24 05:10:16 Merovingian kernel: [ 1789.505511] Workqueue: events check_corruption Jun 24 05:10:16 Merovingian kernel: [ 1789.505523] RIP: 0010:check_for_bios_corruption+0xab/0x100 Jun 24 05:10:16 Merovingian kernel: [ 1789.505527] RSP: 0018:ffffa8a1810e7e38 EFLAGS: 00010282 Jun 24 05:10:16 Merovingian kernel: [ 1789.505534] RAX: 0000000000000000 RBX: ffff9c4c0000e000 RCX: 0000000000000006 Jun 24 05:10:16 Merovingian kernel: [ 1789.505539] RDX: 0000000000000007 RSI: 0000000000000092 RDI: ffff9c4e7fc96490 Jun 24 05:10:16 Merovingian kernel: [ 1789.505543] RBP: ffffa8a1810e7e68 R08: 0000000000000000 R09: 00000000000005b6 Jun 24 05:10:16 Merovingian kernel: [ 1789.505547] R10: 0000000000000000 R11: ffffffff8e55380d R12: 0000000000000000 Jun 24 05:10:16 Merovingian kernel: [ 1789.505551] R13: ffffffff8e52d4d0 R14: 0000000000000001 R15: 0000000080000000 Jun 24 05:10:16 Merovingian kernel: [ 1789.505557] FS: 0000000000000000(0000) GS:ffff9c4e7fc80000(0000) knlGS:0000000000000000 Jun 24 05:10:16 Merovingian kernel: [ 1789.505562] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 24 05:10:16 Merovingian kernel: [ 1789.505567] CR2: 00007f210e7af7c0 CR3: 00000001d221a000 CR4: 00000000001006e0 Jun 24 05:10:16 Merovingian kernel: [ 1789.505571] Call Trace: Jun 24 05:10:16 Merovingian kernel: [ 1789.505588] check_corruption+0xe/0x40 Jun 24 05:10:16 Merovingian kernel: [ 1789.505598] process_one_work+0x1de/0x410 Jun 24 05:10:16 Merovingian kernel: [ 1789.505607] worker_thread+0x32/0x410 Jun 24 05:10:16 Merovingian kernel: [ 1789.505616] kthread+0x121/0x140 Jun 24 05:10:16 Merovingian kernel: [ 1789.505624] ? process_one_work+0x410/0x410 Jun 24 05:10:16 Merovingian kernel: [ 1789.505632] ? kthread_create_worker_on_cpu+0x70/0x70 Jun 24 05:10:16 Merovingian kernel: [ 1789.505640] ? kthread_create_worker_on_cpu+0x70/0x70 Jun 24 05:10:16 Merovingian kernel: [ 1789.505649] ret_from_fork+0x35/0x40 Jun 24 05:10:16 Merovingian kernel: [ 1789.505655] Code: c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 f3 c3 80 3d 50 31 5a 01 00 75 e6 48 c7 c7 10 35 cc 8d c6 05 40 31 5a 01 01 e8 35 f0 01 00 <0f> 0b eb cf 48 89 da 4c 01 fa 72 35 4c 89 c0 48 2b 05 f7 d5 3d Jun 24 05:10:16 Merovingian kernel: [ 1789.505804] ---[ end trace dae745b31118a478 ]---
Output of lspci:
Output of lsusb:Code:00:00.0 Host bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register (rev 0e) 00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0e) 00:13.0 SATA controller: Intel Corporation Atom Processor E3800 Series SATA AHCI Controller (rev 0e) 00:14.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI (rev 0e) 00:1a.0 Encryption controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine (rev 0e) 00:1b.0 Audio device: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller (rev 0e) 00:1c.0 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 1 (rev 0e) 00:1c.1 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 2 (rev 0e) 00:1c.2 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 3 (rev 0e) 00:1c.3 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 4 (rev 0e) 00:1f.0 ISA bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit (rev 0e) 00:1f.3 SMBus: Intel Corporation Atom Processor E3800 Series SMBus Controller (rev 0e) 02:00.0 Network controller: Broadcom Limited BCM43142 802.11b/g/n (rev 01) 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07) 04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)
Code:Bus 002 Device 002: ID 0bda:0401 Realtek Semiconductor Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 005: ID 04f2:b40e Chicony Electronics Co., Ltd HP Truevision HD camera Bus 001 Device 003: ID 0a5c:216c Broadcom Corp. BCM43142A0 Bluetooth Device Bus 001 Device 004: ID 045e:00d1 Microsoft Corp. Optical Mouse with Tilt Wheel Bus 001 Device 002: ID 0bda:5401 Realtek Semiconductor Corp. RTL 8153 USB 3.0 hub with gigabit ethernet Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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