I have Ubuntu 18.04 running in a dual boot setup along with Windows 8.1 From the past 3 days, Ubuntu has become completely unusable on my laptop because it keeps freezing randomly after some time. I already had network issues with Ubuntu wherein my Wifi would randomly disconnect after some time and my Wifi connection would become invisible. I sometimes had to turn off my Wifi for 5-10 minutes and then it would reconnect and the internet would work.
Till yesterday, I was getting some errors related to inodes on a black screen during startup. I have posted images of those messages. Also, when my laptop froze, I was ableto restart it by pressing Alt + Sys Rq + reisub, but today even this has stopped working. I have to turn it off using the power button on the laptop and then turn it back again.
Havent installed any new programs recently, just an update about 4-5 days ago.
Heres the output of cat /var/log/syslog from around the time when Ubuntu froze:
Jul 24 17:50:41 homepc wpa_supplicant[1629]: wlp8s0: CTRL-EVENT-DISCONNECTED bssid=98:da:c4:3b:f4:6e reason=4 locally_generated=1
Jul 24 17:50:41 homepc wpa_supplicant[1629]: wlp8s0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
Jul 24 17:50:41 homepc NetworkManager[1549]: <warn> [1627129241.2623] sup-iface[0x55e164524190,wlp8s0]: connection disconnected (reason -4)
Jul 24 17:50:41 homepc NetworkManager[1549]: <info> [1627129241.2936] device (wlp8s0): supplicant interface state: completed -> disconnected
Jul 24 17:50:41 homepc NetworkManager[1549]: <info> [1627129241.3684] device (wlp8s0): supplicant interface state: disconnected -> scanning
Jul 24 17:50:41 homepc org.gnome.Shell.desktop[3331]: [3978:4008:0724/175041.677431:ERROR:connection_factory_impl.cc(429)] Failed to connect to MCS endpoint with error -106
Jul 24 17:50:48 homepc wpa_supplicant[1629]: wlp8s0: SME: Trying to authenticate with 98:da:c4:3b:f4:6e (SSID='MY-WIFI' freq=2412 MHz)
Jul 24 17:50:48 homepc kernel: [ 5167.460108] wlp8s0: authenticate with 98:da:c4:3b:f4:6e
Jul 24 17:50:48 homepc NetworkManager[1549]: <info> [1627129248.2617] device (wlp8s0): supplicant interface state: scanning -> authenticating
Jul 24 17:50:48 homepc kernel: [ 5167.477284] wlp8s0: send auth to 98:da:c4:3b:f4:6e (try 1/3)
Jul 24 17:50:48 homepc wpa_supplicant[1629]: wlp8s0: Trying to associate with 98:da:c4:3b:f4:6e (SSID='MY-WIFI' freq=2412 MHz)
Jul 24 17:50:48 homepc kernel: [ 5167.480795] wlp8s0: authenticated
Jul 24 17:50:48 homepc kernel: [ 5167.483170] wlp8s0: associate with 98:da:c4:3b:f4:6e (try 1/3)
Jul 24 17:50:48 homepc NetworkManager[1549]: <info> [1627129248.2704] device (wlp8s0): supplicant interface state: authenticating -> associating
Jul 24 17:50:48 homepc wpa_supplicant[1629]: wlp8s0: Associated with 98:da:c4:3b:f4:6e
Jul 24 17:50:48 homepc wpa_supplicant[1629]: wlp8s0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
Jul 24 17:50:48 homepc wpa_supplicant[1629]: RRM: Ignoring radio measurement request: Not associated
Jul 24 17:50:48 homepc kernel: [ 5167.493682] wlp8s0: RX AssocResp from 98:da:c4:3b:f4:6e (capab=0x411 status=0 aid=3)
Jul 24 17:50:48 homepc kernel: [ 5167.493752] wlp8s0: associated
Jul 24 17:50:48 homepc NetworkManager[1549]: <info> [1627129248.2836] device (wlp8s0): supplicant interface state: associating -> associated
Jul 24 17:50:48 homepc NetworkManager[1549]: <info> [1627129248.3852] device (wlp8s0): supplicant interface state: associated -> 4-way handshake
Jul 24 17:50:48 homepc wpa_supplicant[1629]: wlp8s0: WPA: Key negotiation completed with 98:da:c4:3b:f4:6e [PTK=CCMP GTK=CCMP]
Jul 24 17:50:48 homepc wpa_supplicant[1629]: wlp8s0: CTRL-EVENT-CONNECTED - Connection to 98:da:c4:3b:f4:6e completed [id=0 id_str=]
Jul 24 17:50:48 homepc NetworkManager[1549]: <info> [1627129248.3910] device (wlp8s0): supplicant interface state: 4-way handshake -> completed
Jul 24 17:53:27 homepc wpa_supplicant[1629]: wlp8s0: CTRL-EVENT-DISCONNECTED bssid=98:da:c4:3b:f4:6e reason=4 locally_generated=1
Jul 24 17:53:27 homepc wpa_supplicant[1629]: wlp8s0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
Jul 24 17:53:27 homepc NetworkManager[1549]: <warn> [1627129407.2901] sup-iface[0x55e164524190,wlp8s0]: connection disconnected (reason -4)
Jul 24 17:53:27 homepc NetworkManager[1549]: <info> [1627129407.3130] device (wlp8s0): supplicant interface state: completed -> disconnected
Jul 24 17:53:27 homepc NetworkManager[1549]: <info> [1627129407.3962] device (wlp8s0): supplicant interface state: disconnected -> scanning
Jul 24 17:53:27 homepc org.gnome.Shell.desktop[3331]: [3978:4008:0724/175327.694647:ERROR:connection_factory_impl.cc(429)] Failed to connect to MCS endpoint with error -106
Jul 24 17:53:34 homepc wpa_supplicant[1629]: wlp8s0: SME: Trying to authenticate with 98:da:c4:3b:f4:6e (SSID='MY-WIFI' freq=2412 MHz)
Jul 24 17:53:34 homepc kernel: [ 5333.489903] wlp8s0: authenticate with 98:da:c4:3b:f4:6e
Jul 24 17:53:34 homepc NetworkManager[1549]: <info> [1627129414.2937] device (wlp8s0): supplicant interface state: scanning -> authenticating
Jul 24 17:53:34 homepc kernel: [ 5333.506841] wlp8s0: send auth to 98:da:c4:3b:f4:6e (try 1/3)
Jul 24 17:53:34 homepc wpa_supplicant[1629]: wlp8s0: Trying to associate with 98:da:c4:3b:f4:6e (SSID='MY-WIFI' freq=2412 MHz)
Jul 24 17:53:34 homepc kernel: [ 5333.528711] wlp8s0: authenticated
Jul 24 17:53:34 homepc kernel: [ 5333.532733] wlp8s0: associate with 98:da:c4:3b:f4:6e (try 1/3)
Jul 24 17:53:34 homepc NetworkManager[1549]: <info> [1627129414.3211] device (wlp8s0): supplicant interface state: authenticating -> associating
Jul 24 17:53:34 homepc wpa_supplicant[1629]: wlp8s0: Associated with 98:da:c4:3b:f4:6e
Jul 24 17:53:34 homepc wpa_supplicant[1629]: wlp8s0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
Jul 24 17:53:34 homepc wpa_supplicant[1629]: RRM: Ignoring radio measurement request: Not associated
Jul 24 17:53:34 homepc kernel: [ 5333.584706] wlp8s0: RX AssocResp from 98:da:c4:3b:f4:6e (capab=0x411 status=0 aid=3)
Jul 24 17:53:34 homepc kernel: [ 5333.584807] wlp8s0: associated
Jul 24 17:53:34 homepc NetworkManager[1549]: <info> [1627129414.3776] device (wlp8s0): supplicant interface state: associating -> associated
Jul 24 17:53:34 homepc NetworkManager[1549]: <info> [1627129414.4642] device (wlp8s0): supplicant interface state: associated -> 4-way handshake
Jul 24 17:53:34 homepc wpa_supplicant[1629]: wlp8s0: WPA: Key negotiation completed with 98:da:c4:3b:f4:6e [PTK=CCMP GTK=CCMP]
Jul 24 17:53:34 homepc wpa_supplicant[1629]: wlp8s0: CTRL-EVENT-CONNECTED - Connection to 98:da:c4:3b:f4:6e completed [id=0 id_str=]
Jul 24 17:53:34 homepc NetworkManager[1549]: <info> [1627129414.4701] device (wlp8s0): supplicant interface state: 4-way handshake -> completed
Jul 24 17:54:06 homepc org.gnome.Shell.desktop[3331]: [3978:4008:0724/175406.598728:ERROR:connection_handler_impl.cc(471)] Timed out waiting for GCM Protocol buffer.
Jul 24 17:54:45 homepc wpa_supplicant[1629]: wlp8s0: CTRL-EVENT-DISCONNECTED bssid=98:da:c4:3b:f4:6e reason=4 locally_generated=1
Jul 24 17:54:45 homepc NetworkManager[1549]: <warn> [1627129485.2659] sup-iface[0x55e164524190,wlp8s0]: connection disconnected (reason -4)
Jul 24 17:54:45 homepc wpa_supplicant[1629]: wlp8s0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
EDIT: Here's the O/P of some commands:
Output of free -h:
total used free shared buff/cache available
Mem: 7.7G 1.8G 2.9G 507M 3.0G 5.1G
Swap: 3.9G 0B 3.9G
Output of sudo dmidecode -s bios-version:
9ECN31WW(V1.14)
Motherboard information:
$ sudo dmidecode -t 2
# dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.
Handle 0x0002, DMI type 2, 16 bytes
Base Board Information
Manufacturer: LENOVO
Product Name: Lenovo Y50-70
Version: 31900059WIN
Serial Number: CB33028468
Asset Tag: 31900059WIN
Features:
Board is a hosting board
Board is replaceable
Location In Chassis: Type2 - Board Chassis Location
Chassis Handle: 0x0003
Type: Motherboard
Contained Object Handles: 0
EDIT: O/P of grep -i sda /var/log/syslog*:
username@homepc:~$ grep -i sda /var/log/syslog*
Binary file /var/log/syslog matches
/var/log/syslog.1:Jul 24 00:31:04 homepc smartd[1528]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 104 to 103
/var/log/syslog.1:Jul 24 00:56:54 homepc kernel: [14114.668163] sd 4:0:0:0: [sda] Synchronizing SCSI cache
/var/log/syslog.1:Jul 24 00:56:54 homepc kernel: [14114.687786] sd 4:0:0:0: [sda] Stopping disk
/var/log/syslog.1:Jul 24 00:56:54 homepc kernel: [14116.007893] sd 4:0:0:0: [sda] Starting disk
/var/log/syslog.1:Jul 24 00:56:57 homepc systemd-sleep[15630]: /dev/sda:
/var/log/syslog.1:Jul 24 08:27:53 homepc kernel: [14163.818811] sd 4:0:0:0: [sda] Synchronizing SCSI cache
/var/log/syslog.1:Jul 24 08:27:53 homepc kernel: [14163.841427] sd 4:0:0:0: [sda] Stopping disk
/var/log/syslog.1:Jul 24 08:27:53 homepc kernel: [14165.158971] sd 4:0:0:0: [sda] Starting disk
/var/log/syslog.1:Jul 24 08:27:56 homepc systemd-sleep[16051]: /dev/sda:
/var/log/syslog.1:Jul 24 08:32:40 homepc smartd[1528]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 3 Spin_Up_Time changed from 184 to 183
/var/log/syslog.1:Jul 24 08:32:40 homepc smartd[1528]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 103 to 116
/var/log/syslog.1:Jul 24 09:01:05 homepc smartd[1528]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 116 to 107
/var/log/syslog.1:Jul 24 09:31:04 homepc smartd[1528]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 107 to 106
/var/log/syslog.1:Jul 24 10:01:04 homepc smartd[1528]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 106 to 105
/var/log/syslog.1:Jul 24 10:31:04 homepc smartd[1528]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 105 to 104
/var/log/syslog.1:Jul 24 12:01:49 homepc systemd-fsck[828]: /dev/sda2: 177 files, 8633/65536 clusters
/var/log/syslog.1:Jul 24 12:01:49 homepc smartd[1693]: Device: /dev/sda, type changed from 'scsi' to 'sat'
/var/log/syslog.1:Jul 24 12:01:49 homepc smartd[1693]: Device: /dev/sda [SAT], opened
/var/log/syslog.1:Jul 24 12:01:49 homepc smartd[1693]: Device: /dev/sda [SAT], WDC WD10S21X-24R1BT0-SSHD-8GB, S/N:WD-WX31A2408851, WWN:5-0014ee-6af828dc8, FW:03.01A01, 1.00 TB
/var/log/syslog.1:Jul 24 12:01:49 homepc smartd[1693]: Device: /dev/sda [SAT], not found in smartd database.
/var/log/syslog.1:Jul 24 12:01:49 homepc smartd[1693]: Device: /dev/sda [SAT], is SMART capable. Adding to "monitor" list.
/var/log/syslog.1:Jul 24 12:01:49 homepc smartd[1693]: Device: /dev/sda [SAT], state read from /var/lib/smartmontools/smartd.WDC_WD10S21X_24R1BT0_SSHD_8GB-WD_WX31A2408851.ata.state
/var/log/syslog.1:Jul 24 12:01:49 homepc kernel: [ 5.784767] sd 4:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/932 GiB)
/var/log/syslog.1:Jul 24 12:01:49 homepc kernel: [ 5.784768] sd 4:0:0:0: [sda] 4096-byte physical blocks
/var/log/syslog.1:Jul 24 12:01:49 homepc kernel: [ 5.784788] sd 4:0:0:0: [sda] Write Protect is off
/var/log/syslog.1:Jul 24 12:01:49 homepc kernel: [ 5.784790] sd 4:0:0:0: [sda] Mode Sense: 00 3a 00 00
/var/log/syslog.1:Jul 24 12:01:49 homepc kernel: [ 5.784835] sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
/var/log/syslog.1:Jul 24 12:01:49 homepc kernel: [ 5.916780] sda: sda1 sda2 sda3 sda4 sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 sda13
/var/log/syslog.1:Jul 24 12:01:49 homepc kernel: [ 5.917637] sd 4:0:0:0: [sda] Attached SCSI disk
/var/log/syslog.1:Jul 24 12:01:49 homepc kernel: [ 9.848303] EXT4-fs (sda13): mounted filesystem with ordered data mode. Opts: (null)
/var/log/syslog.1:Jul 24 12:01:49 homepc kernel: [ 16.425279] EXT4-fs (sda13): re-mounted. Opts: errors=remount-ro
/var/log/syslog.1:Jul 24 12:01:49 homepc kernel: [ 33.962702] Adding 4094972k swap on /dev/sda8. Priority:-2 extents:1 across:4094972k FS
/var/log/syslog.1:Jul 24 12:01:50 homepc smartd[1693]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 3 Spin_Up_Time changed from 183 to 182
/var/log/syslog.1:Jul 24 12:01:50 homepc smartd[1693]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 104 to 102
/var/log/syslog.1:Jul 24 12:01:50 homepc smartd[1693]: Device: /dev/sda [SAT], state written to /var/lib/smartmontools/smartd.WDC_WD10S21X_24R1BT0_SSHD_8GB-WD_WX31A2408851.ata.state
/var/log/syslog.1:Jul 24 12:31:50 homepc smartd[1693]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 102 to 103
/var/log/syslog.1:Jul 24 16:25:20 homepc systemd-fsck[976]: /dev/sda2: 177 files, 8633/65536 clusters
/var/log/syslog.1:Jul 24 16:25:20 homepc smartd[1608]: Device: /dev/sda, type changed from 'scsi' to 'sat'
/var/log/syslog.1:Jul 24 16:25:20 homepc smartd[1608]: Device: /dev/sda [SAT], opened
/var/log/syslog.1:Jul 24 16:25:20 homepc smartd[1608]: Device: /dev/sda [SAT], WDC WD10S21X-24R1BT0-SSHD-8GB, S/N:WD-WX31A2408851, WWN:5-0014ee-6af828dc8, FW:03.01A01, 1.00 TB
/var/log/syslog.1:Jul 24 16:25:20 homepc smartd[1608]: Device: /dev/sda [SAT], not found in smartd database.
/var/log/syslog.1:Jul 24 16:25:20 homepc kernel: [ 5.781070] sd 4:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/932 GiB)
/var/log/syslog.1:Jul 24 16:25:20 homepc kernel: [ 5.781072] sd 4:0:0:0: [sda] 4096-byte physical blocks
/var/log/syslog.1:Jul 24 16:25:20 homepc kernel: [ 5.781104] sd 4:0:0:0: [sda] Write Protect is off
/var/log/syslog.1:Jul 24 16:25:20 homepc kernel: [ 5.781106] sd 4:0:0:0: [sda] Mode Sense: 00 3a 00 00
/var/log/syslog.1:Jul 24 16:25:20 homepc kernel: [ 5.781140] sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
/var/log/syslog.1:Jul 24 16:25:20 homepc kernel: [ 5.826074] sda: sda1 sda2 sda3 sda4 sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 sda13
/var/log/syslog.1:Jul 24 16:25:20 homepc kernel: [ 5.826717] sd 4:0:0:0: [sda] Attached SCSI disk
/var/log/syslog.1:Jul 24 16:25:20 homepc kernel: [ 8.746930] EXT4-fs (sda13): mounted filesystem with ordered data mode. Opts: (null)
/var/log/syslog.1:Jul 24 16:25:20 homepc kernel: [ 11.012288] EXT4-fs (sda13): re-mounted. Opts: errors=remount-ro
/var/log/syslog.1:Jul 24 16:25:20 homepc kernel: [ 32.179756] Adding 4094972k swap on /dev/sda8. Priority:-2 extents:1 across:4094972k FS
/var/log/syslog.1:Jul 24 16:25:21 homepc smartd[1608]: Device: /dev/sda [SAT], is SMART capable. Adding to "monitor" list.
/var/log/syslog.1:Jul 24 16:25:21 homepc smartd[1608]: Device: /dev/sda [SAT], state read from /var/lib/smartmontools/smartd.WDC_WD10S21X_24R1BT0_SSHD_8GB-WD_WX31A2408851.ata.state
/var/log/syslog.1:Jul 24 16:25:21 homepc smartd[1608]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 3 Spin_Up_Time changed from 182 to 181
/var/log/syslog.1:Jul 24 16:25:21 homepc smartd[1608]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 103 to 101
/var/log/syslog.1:Jul 24 16:25:21 homepc smartd[1608]: Device: /dev/sda [SAT], state written to /var/lib/smartmontools/smartd.WDC_WD10S21X_24R1BT0_SSHD_8GB-WD_WX31A2408851.ata.state
/var/log/syslog.1:Jul 24 16:55:21 homepc smartd[1608]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 101 to 102
/var/log/syslog.1:Jul 24 18:09:31 homepc systemd-fsck[979]: /dev/sda2: 177 files, 8633/65536 clusters
/var/log/syslog.1:Jul 24 18:09:31 homepc kernel: [ 5.796827] sd 4:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/932 GiB)
/var/log/syslog.1:Jul 24 18:09:31 homepc kernel: [ 5.796829] sd 4:0:0:0: [sda] 4096-byte physical blocks
/var/log/syslog.1:Jul 24 18:09:31 homepc kernel: [ 5.796851] sd 4:0:0:0: [sda] Write Protect is off
/var/log/syslog.1:Jul 24 18:09:31 homepc kernel: [ 5.796853] sd 4:0:0:0: [sda] Mode Sense: 00 3a 00 00
/var/log/syslog.1:Jul 24 18:09:31 homepc kernel: [ 5.796904] sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
/var/log/syslog.1:Jul 24 18:09:31 homepc kernel: [ 5.841568] sda: sda1 sda2 sda3 sda4 sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 sda13
/var/log/syslog.1:Jul 24 18:09:31 homepc kernel: [ 5.842333] sd 4:0:0:0: [sda] Attached SCSI disk
/var/log/syslog.1:Jul 24 18:09:31 homepc kernel: [ 7.256732] EXT4-fs (sda13): mounted filesystem with ordered data mode. Opts: (null)
/var/log/syslog.1:Jul 24 18:09:31 homepc kernel: [ 9.923139] EXT4-fs (sda13): re-mounted. Opts: errors=remount-ro
/var/log/syslog.1:Jul 24 18:09:31 homepc kernel: [ 33.960679] Adding 4094972k swap on /dev/sda8. Priority:-2 extents:1 across:4094972k FS
/var/log/syslog.1:Jul 24 18:09:31 homepc smartd[1469]: Device: /dev/sda, type changed from 'scsi' to 'sat'
/var/log/syslog.1:Jul 24 18:09:31 homepc smartd[1469]: Device: /dev/sda [SAT], opened
/var/log/syslog.1:Jul 24 18:09:31 homepc smartd[1469]: Device: /dev/sda [SAT], WDC WD10S21X-24R1BT0-SSHD-8GB, S/N:WD-WX31A2408851, WWN:5-0014ee-6af828dc8, FW:03.01A01, 1.00 TB
/var/log/syslog.1:Jul 24 18:09:31 homepc smartd[1469]: Device: /dev/sda [SAT], not found in smartd database.
/var/log/syslog.1:Jul 24 18:09:32 homepc smartd[1469]: Device: /dev/sda [SAT], is SMART capable. Adding to "monitor" list.
/var/log/syslog.1:Jul 24 18:09:32 homepc smartd[1469]: Device: /dev/sda [SAT], state read from /var/lib/smartmontools/smartd.WDC_WD10S21X_24R1BT0_SSHD_8GB-WD_WX31A2408851.ata.state
/var/log/syslog.1:Jul 24 18:09:32 homepc smartd[1469]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 3 Spin_Up_Time changed from 181 to 182
/var/log/syslog.1:Jul 24 18:09:33 homepc smartd[1469]: Device: /dev/sda [SAT], state written to /var/lib/smartmontools/smartd.WDC_WD10S21X_24R1BT0_SSHD_8GB-WD_WX31A2408851.ata.state
/var/log/syslog.1:Jul 24 18:39:33 homepc smartd[1469]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 102 to 101
/var/log/syslog.1:Jul 24 19:09:33 homepc smartd[1469]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 101 to 102
/var/log/syslog.1:Jul 24 19:39:33 homepc smartd[1469]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 102 to 103
/var/log/syslog.1:Jul 24 20:15:07 homepc systemd-fsck[977]: /dev/sda2: 177 files, 8633/65536 clusters
/var/log/syslog.1:Jul 24 20:15:07 homepc kernel: [ 5.809158] sd 4:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/932 GiB)
/var/log/syslog.1:Jul 24 20:15:07 homepc kernel: [ 5.809160] sd 4:0:0:0: [sda] 4096-byte physical blocks
/var/log/syslog.1:Jul 24 20:15:07 homepc kernel: [ 5.809166] sd 4:0:0:0: [sda] Write Protect is off
/var/log/syslog.1:Jul 24 20:15:07 homepc kernel: [ 5.809167] sd 4:0:0:0: [sda] Mode Sense: 00 3a 00 00
/var/log/syslog.1:Jul 24 20:15:07 homepc kernel: [ 5.809176] sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
/var/log/syslog.1:Jul 24 20:15:07 homepc kernel: [ 5.852467] sda: sda1 sda2 sda3 sda4 sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 sda13
/var/log/syslog.1:Jul 24 20:15:07 homepc kernel: [ 5.853274] sd 4:0:0:0: [sda] Attached SCSI disk
/var/log/syslog.1:Jul 24 20:15:07 homepc kernel: [ 6.742457] EXT4-fs (sda13): mounted filesystem with ordered data mode. Opts: (null)
/var/log/syslog.1:Jul 24 20:15:07 homepc kernel: [ 10.357071] EXT4-fs (sda13): re-mounted. Opts: errors=remount-ro
/var/log/syslog.1:Jul 24 20:15:07 homepc kernel: [ 32.367334] Adding 4094972k swap on /dev/sda8. Priority:-2 extents:1 across:4094972k FS
/var/log/syslog.1:Jul 24 20:15:07 homepc smartd[1585]: Device: /dev/sda, type changed from 'scsi' to 'sat'
/var/log/syslog.1:Jul 24 20:15:07 homepc smartd[1585]: Device: /dev/sda [SAT], opened
/var/log/syslog.1:Jul 24 20:15:07 homepc smartd[1585]: Device: /dev/sda [SAT], WDC WD10S21X-24R1BT0-SSHD-8GB, S/N:WD-WX31A2408851, WWN:5-0014ee-6af828dc8, FW:03.01A01, 1.00 TB
/var/log/syslog.1:Jul 24 20:15:07 homepc smartd[1585]: Device: /dev/sda [SAT], not found in smartd database.
/var/log/syslog.1:Jul 24 20:15:08 homepc smartd[1585]: Device: /dev/sda [SAT], is SMART capable. Adding to "monitor" list.
/var/log/syslog.1:Jul 24 20:15:08 homepc smartd[1585]: Device: /dev/sda [SAT], state read from /var/lib/smartmontools/smartd.WDC_WD10S21X_24R1BT0_SSHD_8GB-WD_WX31A2408851.ata.state
/var/log/syslog.1:Jul 24 20:15:08 homepc smartd[1585]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 3 Spin_Up_Time changed from 182 to 181
/var/log/syslog.1:Jul 24 20:15:08 homepc smartd[1585]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 103 to 101
/var/log/syslog.1:Jul 24 20:15:09 homepc smartd[1585]: Device: /dev/sda [SAT], state written to /var/lib/smartmontools/smartd.WDC_WD10S21X_24R1BT0_SSHD_8GB-WD_WX31A2408851.ata.state
/var/log/syslog.1:Jul 24 20:45:09 homepc smartd[1585]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 101 to 102
Binary file /var/log/syslog.1 matches
O/P of grep -i FPDMA /var/log/syslog* was empty
Temperatures using freon:
Output of sudo lshw -C memory:
*-firmware
description: BIOS
vendor: LENOVO
physical id: 0
version: 9ECN43WW(V3.03)
date: 08/12/2015
size: 128KiB
capacity: 6592KiB
capabilities: pci upgrade shadowing cdboot bootselect edd int13floppynec int13floppytoshiba int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int9keyboard int10video acpi usb biosbootspecification uefi
*-cache:0
description: L1 cache
physical id: b
slot: L1 Cache
size: 32KiB
capacity: 32KiB
capabilities: synchronous internal write-back instruction
configuration: level=1
*-cache:1
description: L2 cache
physical id: c
slot: L2 Cache
size: 256KiB
capacity: 256KiB
capabilities: synchronous internal write-back unified
configuration: level=2
*-cache:2
description: L3 cache
physical id: d
slot: L3 Cache
size: 6MiB
capacity: 6MiB
capabilities: synchronous internal write-back unified
configuration: level=3
*-cache
description: L1 cache
physical id: a
slot: L1 Cache
size: 32KiB
capacity: 32KiB
capabilities: synchronous internal write-back data
configuration: level=1
*-memory
description: System Memory
physical id: 2a
slot: System board or motherboard
size: 8GiB
*-bank:0
description: SODIMM DDR3 Synchronous 1600 MHz (0.6 ns)
product: M471B1G73DB0-YK0
vendor: Samsung
physical id: 0
serial: E187FF61
slot: DIMM0
size: 8GiB
width: 64 bits
clock: 1600MHz (0.6ns)
*-bank:1
description: DIMM [empty]
product: Empty
vendor: Empty
physical id: 1
serial: Empty
slot: DIMM1
*-bank:2
description: DIMM [empty]
product: Empty
vendor: Empty
physical id: 2
serial: Empty
slot: DIMM2
*-bank:3
description: DIMM [empty]
product: Empty
vendor: Empty
physical id: 3
serial: Empty
slot: DIMM3
Output of grep -i pag /var/log/syslog*: https://paste.ubuntu.com/p/X3GKD2kFWM/
Output of grep -i swap /var/log/syslog*: https://paste.ubuntu.com/p/9wgkVNGzdD/
Output of ls -al /boot:
total 107216
drwxr-xr-x 4 root root 4096 Jul 24 08:29 .
drwxr-xr-x 27 root root 4096 Jul 23 08:58 ..
-rw-r--r-- 1 root root 217414 Jun 18 22:19 config-4.15.0-147-generic
-rw-r--r-- 1 root root 217414 Jul 10 01:49 config-4.15.0-151-generic
drwx------ 4 root root 4096 Jan 1 1970 efi
drwxr-xr-x 5 root root 4096 Jul 22 08:01 grub
-rw-r--r-- 1 root root 41845448 Jul 21 08:43 initrd.img-4.15.0-147-generic
-rw-r--r-- 1 root root 41844884 Jul 24 08:29 initrd.img-4.15.0-151-generic
-rw-r--r-- 1 root root 182704 Jan 28 2016 memtest86+.bin
-rw-r--r-- 1 root root 184380 Jan 28 2016 memtest86+.elf
-rw-r--r-- 1 root root 184840 Jan 28 2016 memtest86+_multiboot.bin
-rw------- 1 root root 4082393 Jun 18 22:19 System.map-4.15.0-147-generic
-rw------- 1 root root 4082629 Jul 10 01:49 System.map-4.15.0-151-generic
-rw------- 1 root root 8449696 Jun 19 00:12 vmlinuz-4.15.0-147-generic
-rw------- 1 root root 8453792 Jul 10 01:53 vmlinuz-4.15.0-151-generic
This was the screen I saw when even rebooting froze (it wouldnt proceed further):
EDIT: Downgrading to the previous kernel (version -147) solved these issues.
