[Xperia Z Original Android Development] ElSakuro:
Sure thing... I never used this file, so actually I have no idea whether it "begins" at the top or bottom. I will give you both "ends" (there's a LOT more in the center)

First line from the top:

nder: 213:213 ioctl 620a a8da1bf7 returned -22
[ 6.892974] fsck.f2fs: Info: Fix the reported corruption.
[ 6.892974]
[ 6.893157] fsck.f2fs: Info: Segments per section = 1
[ 6.893157]
[ 6.893249] fsck.f2fs: Info: Sections per zone = 1
[ 6.893249]
[ 6.893402] fsck.f2fs: Info: sector size = 512
[ 6.893402]
[ 6.893493] fsck.f2fs: Info: total sectors = 25055199 (12233 MB)
[ 6.893493]
[ 6.893615] fsck.f2fs:	Can't find a valid F2FS superblock at 0x0
[ 6.893615]
[ 6.893737] fsck.f2fs:	Can't find a valid F2FS superblock at 0x1
[ 6.893737]
[ 6.893829] fsck.f2fs: fsck.f2fs terminated by exit(255)
[ 6.893829]
[ 6.896697] F2FS-fs (mmcblk0p26): Magic Mismatch, valid(0xf2f52010) - read(0xbf400)
[ 6.896820] F2FS-fs (mmcblk0p26): Can't find valid F2FS filesystem in 1th superblock
[ 6.897277] F2FS-fs (mmcblk0p26): Magic Mismatch, valid(0xf2f52010) - read(0x100000)
[ 6.897399] F2FS-fs (mmcblk0p26): Can't find valid F2FS filesystem in 2th superblock
[ 6.897521] F2FS-fs (mmcblk0p26): Magic Mismatch, valid(0xf2f52010) - read(0xbf400)
[ 6.897613] F2FS-fs (mmcblk0p26): Can't find valid F2FS filesystem in 1th superblock
[ 6.897735] F2FS-fs (mmcblk0p26): Magic Mismatch, valid(0xf2f52010) - read(0x100000)
[ 6.897857] F2FS-fs (mmcblk0p26): Can't find valid F2FS filesystem in 2th superblock
[ 6.936187] init: [libfs_mgr]__mount(source=/dev/block/platform/msm_sdcc.1/by-name/userdata,target=/data,type=f2fs)=-1: Invalid argument
[ 6.936401] init: [libfs_mgr]Running /system/bin/fsck.f2fs -a /dev/block/platform/msm_sdcc.1/by-name/userdata
[ 6.964080] fsck.f2fs: Info: Fix the reported corruption.
[ 6.964080]
[ 6.964263] fsck.f2fs: Info: Segments per section = 1
[ 6.964263]
[ 6.964385] fsck.f2fs: Info: Sections per zone = 1
[ 6.964385]
[ 6.964477] fsck.f2fs: Info: sector size = 512
[ 6.964477]
[ 6.964630] fsck.f2fs: Info: total sectors = 25055199 (12233 MB)
[ 6.964630]
[ 6.964721] fsck.f2fs:	Can't find a valid F2FS superblock at 0x0
[ 6.964721]
[ 6.964843] fsck.f2fs:	Can't find a valid F2FS superblock at 0x1
[ 6.964843]
[ 6.964965] fsck.f2fs: fsck.f2fs terminated by exit(255)
[ 6.964965]
[ 6.968353] F2FS-fs (mmcblk0p26): Magic Mismatch, valid(0xf2f52010) - read(0xbf400)
[ 6.968475] F2FS-fs (mmcblk0p26): Can't find valid F2FS filesystem in 1th superblock
[ 6.968994] F2FS-fs (mmcblk0p26): Magic Mismatch, valid(0xf2f52010) - read(0x100000)
[ 6.969055] F2FS-fs (mmcblk0p26): Can't find valid F2FS filesystem in 2th superblock
[ 6.969177] F2FS-fs (mmcblk0p26): Magic Mismatch, valid(0xf2f52010) - read(0xbf400)
[ 6.969299] F2FS-fs (mmcblk0p26): Can't find valid F2FS filesystem in 1th superblock
[ 6.969360] F2FS-fs (mmcblk0p26): Magic Mismatch, valid(0xf2f52010) - read(0x100000)
[ 6.969482] F2FS-fs (mmcblk0p26): Can't find valid F2FS filesystem in 2th superblock
[ 6.976593] init: [libfs_mgr]__mount(source=/dev/block/platform/msm_sdcc.1/by-name/userdata,target=/data,type=f2fs)=-1: Invalid argument
[ 6.978942] init: [libfs_mgr]superblock s_max_mnt_count:10,/dev/block/platform/msm_sdcc.1/by-name/userdata
[ 6.995971] EXT4-fs (mmcblk0p26): mounted filesystem with ordered data mode. Opts: errors=remount-ro,nomblk_io_submit
[ 6.996276] init: [libfs_mgr]check_fs(): mount(/dev/block/platform/msm_sdcc.1/by-name/userdata,/data,ext4)=0: Success
[ 7.006225] init: [libfs_mgr]check_fs(): unmount(/data) succeeded
[ 7.006347] init: [libfs_mgr]Running /system/bin/e2fsck on /dev/block/platform/msm_sdcc.1/by-name/userdata
[ 7.059112] e2fsck: e2fsck 1.43.3 (04-Sep-2016)
[ 7.059112]
[ 7.059295] e2fsck: /dev/block/platform/msm_sdcc.1/by-name/userdata: clean, 38/783360 files, 89640/3131895 blocks (check in 4 mounts)
[ 7.059295]
[ 7.077911] EXT4-fs (mmcblk0p26): mounted filesystem with ordered data mode. Opts: noauto_da_alloc,barrier=1,errors=panic
[ 7.078216] init: [libfs_mgr]__mount(source=/dev/block/platform/msm_sdcc.1/by-name/userdata,target=/data,type=ext4)=0: Success
[ 7.078369] init: [libfs_mgr]mount_with_alternatives(): Mounted /dev/block/platform/msm_sdcc.1/by-name/userdata on /data with fs_type=ext4 instead of f2fs
[ 7.093994] init: Command 'mount_all ./fstab.qcom --late' action=late-fs (/init.qcom.rc:51) returned 1 took 244ms.
[ 7.095397] init: processing action (post-fs-data) from (/init.rc:365)
[ 7.096405] init: starting service 'vold'...
[ 7.098937] init: Created socket '/dev/socket/vold', mode 660, user 0, group 1009
[ 7.099914] init: Created socket '/dev/socket/cryptd', mode 660, user 0, group 1009
[ 7.104156] init: Unable to open '/data/system/entropy.dat': No such file or directory
[ 7.116058] init: Unable to open '/data/misc/recovery/ro.build.fingerprint': No such file or directory
[ 7.117431] init: Unable to open '/data/misc/recovery/proc/version': No such file or directory
[ 7.268493] init: starting service 'exec 1 (/system/bin/vdc --wait cryptfs init_user0)'...
[ 7.269531] init: SVC_EXEC pid 245 (uid 0 gid 0+0 context default) started; waiting...
[ 7.301910] init: Service 'exec 1 (/system/bin/vdc --wait cryptfs init_user0)' (pid 245) exited with status 0 waiting took 0.033000 seconds
[ 7.376525] init: Command 'restorecon --recursive --skip-ce /data' action=post-fs-data (/init.rc:514) returned 0 took 74ms.
[ 7.377166] init: starting service 'exec 2 (/system/bin/tzdatacheck /system/usr/share/zoneinfo /data/misc/zoneinfo)'...
[ 7.378631] init: SVC_EXEC pid 247 (uid 1000 gid 1000+0 context default) started; waiting...
[ 7.412780] init: Service 'exec 2 (/system/bin/tzdatacheck /system/usr/share/zoneinfo /data/misc/zoneinfo)' (pid 247) exited with status 0 waiting took 0.035000 seconds
[ 7.413085] init: processing action (post-fs-data) from (/init.usb.rc:6)
[ 7.416595] ueventd: firmware: loading 'a300_pm4.fw' for '/devices/platform/kgsl-3d0.0/kgsl/kgsl-3d0/a300_pm4.fw'
[ 7.419311] init: processing action (post-fs-data) from (/init.qcom.rc:58)
[ 7.419494] wcnss_wlan triggered by userspace
[ 7.419708] type=1400 audit(1544647066.674:5): avc: granted { open } for pid=1 comm="init" name="wcnss_wlan" dev="tmpfs" ino=6219 scontext=u:r:init:s0 tcontext=u:object_r:wlan_device:s0 tclass=chr_file
[ 7.420318] ueventd: loading /devices/platform/kgsl-3d0.0/kgsl/kgsl-3d0/a300_pm4.fw took 3ms
[ 7.421203] ueventd: firmware: loading 'a300_pfp.fw' for '/devices/platform/kgsl-3d0.0/kgsl/kgsl-3d0/a300_pfp.fw'
[ 7.423492] ueventd: loading /devices/platform/kgsl-3d0.0/kgsl/kgsl-3d0/a300_pfp.fw took 2ms
[ 7.457305] ueventd: firmware: loading 'wcnss.mdt' for '/devices/platform/pil_riva/pil1/firmware/wcnss.mdt'
[ 7.462249] ueventd: loading /devices/platform/pil_riva/pil1/firmware/wcnss.mdt took 5ms
[ 7.478637] ueventd: firmware: loading 'wcnss.b02' for '/devices/platform/pil_riva/pil1/firmware/wcnss.b02'
[ 7.479766] ueventd: loading /devices/platform/pil_riva/pil1/firmware/wcnss.b02 took 1ms
[ 7.480773] ueventd: firmware: loading 'wcnss.b04' for '/devices/platform/pil_riva/pil1/firmware/wcnss.b04'
[ 7.481628] ueventd: loading /devices/platform/pil_riva/pil1/firmware/wcnss.b04 took 1ms
[ 7.482604] ueventd: firmware: loading 'wcnss.b05' for '/devices/platform/pil_riva/pil1/firmware/wcnss.b05'
[ 7.521911] ueventd: loading /devices/platform/pil_riva/pil1/firmware/wcnss.b05 took 39ms
[ 7.609130] pil pil1: wcnss: Brought out of reset
[ 7.609344] init: Command 'write /dev/wcnss_wlan ' action=post-fs-data (/init.qcom.rc:59) returned 0 took 189ms.
[ 7.609619] wcnss_8960: Subsystem restart activated for riva.
[ 7.620178] init: processing action (post-fs-data) from (/system/etc/init/bootstat.rc:3)
[ 7.622070] init: processing action (post-fs-data) from (/system/etc/init/lineage-ssh.rc:1)
[ 7.624633] init: processing action (post-fs-data) from (/system/etc/init/lineage-system.rc:6)
[ 7.625457] init: starting service 'sysinit'...
[ 7.626800] init: processing action (post-fs-data) from (/system/etc/init/lineage-updates.rc:1)
[ 7.636688] init: processing action (post-fs-data) from (/system/etc/init/logtagd.rc:4)
[ 7.638092] init: processing action (post-fs-data) from (/vendor/etc/init/hostapd.android.rc:9)
[ 7.638824] init: processing action (ro.crypto.state=unencrypted && zygote-start) from (/init.rc:527)
[ 7.638946] init: ExecStart(update_verifier_nonencrypted): Service not found
[ 7.639465] init: starting service 'netd'...
[ 7.640991] init: starting service 'zygote'...
[ 7.642028] init: do_start: Service zygote_secondary not found
[ 7.642272] init: processing action (load_persist_props_action) from (/init.rc:254)
[ 7.642517] init: Couldn't load property file: Unable to open '/data/local.prop': No such file or directory: No such file or directory
[ 7.643127] init: starting service 'logd-reinit'...
[ 7.644317] init: processing action (load_persist_props_action) from (/system/etc/init/logcatd.rc:31)
[ 7.644531] init: processing action (firmware_mounts_complete) from (/init.rc:260)
[ 7.644805] init: processing action (early-boot) from (/init.qcom.rc:125)
[ 7.645202] init: processing action (early-boot) from (init.device.rc:1)
[ 7.645965] init: processing action (early-boot) from (/system/etc/init/installd.rc:5)
[ 7.647857] init: Created socket '/dev/socket/zygote', mode 660, user 0, group 1000
[ 7.667022] logd.daemon: reinit
[ 7.668151] init: Service 'logd-reinit' (pid 261) exited with status 0
[ 7.678771] init: processing action (boot) from (/init.rc:548)
[ 7.688049] init: Created socket '/dev/socket/netd', mode 660, user 0, group 1000
[ 7.688873] init: Created socket '/dev/socket/dnsproxyd', mode 660, user 0, group 3003
[ 7.689544] init: Created socket '/dev/socket/mdns', mode 660, user 0, group 1000
[ 7.690246] init: Created socket '/dev/socket/fwmarkd', mode 660, user 0, group 3003
[ 7.705993] init: starting service 'hidl_memory'...
[ 7.708007] init: starting service 'cas-hal-1-0'...
[ 7.709594] init: starting service 'usb-hal-1-0'...
[ 7.711029] init: starting service 'vibrator-1-0'...
[ 7.712768] init: starting service 'wifi_hal_legacy'...
[ 7.714569] init: starting service 'healthd'...
[ 7.716033] init: service config_bt_addr does not have a SELinux domain defined
[ 7.716156] init: starting service 'config_bt_addr'...
[ 7.727386] init: starting service 'ks_checker'...
[ 7.727386] type=1400 audit(1544647066.674:5): avc: granted { open } for pid=1 comm="init" name="wcnss_wlan" dev="tmpfs" ino=6219 scontext=u:r:init:s0 tcontext=u:object_r:wlan_device:s0 tclass=chr_file
[ 7.727386] type=1400 audit(1544647066.984:6): avc: denied { execute_no_trans } for pid=270 comm="init" path="/system/bin/btnvtool" dev="mmcblk0p24" ino=166 scontext=u:r:init:s0 tcontext=u:object_r:system_file:s0 tclass=file permissive=0
[ 7.728057] init: cannot execve('/system/bin/btnvtool'): Permission denied
[ 7.729003] init: starting service 'tad_static'...
[ 7.730560] init: starting service 'lmkd'...
(a lot more...)
...

And the last line here (at the bottom) is the absolute last line inlast_kmsg. Sorry for the noobish approach! Hope this helps.

(... a lot more)
[ 183.298370] init: Sending signal 9 to service 'ril-daemon' (pid 303) process group...
[ 183.298583] init: Successfully killed process cgroup uid 1001 pid 303 in 0ms
[ 183.307708] init: Service 'gatekeeperd' (pid 305) killed by signal 15
[ 183.307800] init: Sending signal 9 to service 'gatekeeperd' (pid 305) process group...
[ 183.308013] init: Successfully killed process cgroup uid 1000 pid 305 in 0ms
[ 183.316894] init: Service 'perfprofd' (pid 306) killed by signal 15
[ 183.317199] init: Service 'kickstart' (pid 392) killed by signal 15
[ 183.317504] init: Service 'zygote' (pid 3971) killed by signal 15
[ 183.317596] init: Sending signal 9 to service 'zygote' (pid 3971) process group...
[ 183.317810] init: Successfully killed process cgroup uid 0 pid 3971 in 0ms
[ 183.319549] init: Service 'audioserver' (pid 3972) killed by signal 15
[ 183.319702] init: Sending signal 9 to service 'audioserver' (pid 3972) process group...
[ 183.319885] init: Successfully killed process cgroup uid 1041 pid 3972 in 0ms
[ 183.337280] init: Service 'media' (pid 3973) killed by signal 15
[ 183.337432] init: Sending signal 9 to service 'media' (pid 3973) process group...
[ 183.337615] init: Successfully killed process cgroup uid 1013 pid 3973 in 0ms
[ 183.339050] init: Service 'netd' (pid 3974) killed by signal 15
[ 183.339202] init: Sending signal 9 to service 'netd' (pid 3974) process group...
[ 183.339385] init: Successfully killed process cgroup uid 0 pid 3974 in 0ms
[ 183.347503] init: Service 'wificond' (pid 3975) exited with status 0
[ 183.347595] init: Sending signal 9 to service 'wificond' (pid 3975) process group...
[ 183.347808] init: Successfully killed process cgroup uid 1010 pid 3975 in 0ms
[ 183.356842] init: Untracked pid 509 killed by signal 15
[ 183.357086] init: Untracked pid 488 killed by signal 15
[ 183.357391] init: Untracked pid 3976 killed by signal 15
[ 183.357574] init: Untracked pid 3977 killed by signal 15
[ 183.357818] init: Untracked pid 4030 killed by signal 15
[ 183.358245] init: Untracked pid 4062 exited with status 0
[ 183.358428] init: Terminating running services took 294ms with remaining services:0
[ 183.358581] init: Sending signal 9 to service 'console' (pid 276) process group...
[ 183.364074] init: Successfully killed process cgroup uid 2000 pid 276 in 5ms
[ 183.477966] init: Service 'console' (pid 276) killed by signal 9
[ 183.496856] vdc: 651 emulated 7
[ 183.496856]
[ 183.497009] vdc: 659 emulated
[ 183.497009]
[ 183.497070] vdc: 651 public:179_65 7
[ 183.497070]
[ 183.497161] vdc: 659 public:179_65
[ 183.497161]
[ 183.497283] vdc: 649 disk:179_64
[ 183.497283]
[ 183.497344] vdc: 200 4067 Command succeeded
[ 183.497344]
[ 183.497741] init: Sending signal 9 to service 'vold' (pid 236) process group...
[ 183.503326] init: Successfully killed process cgroup uid 0 pid 236 in 5ms
[ 183.526885] init: Sending signal 9 to service 'adbd' (pid 279) process group...
[ 183.532470] init: Successfully killed process cgroup uid 0 pid 279 in 5ms
[ 183.546569] init: Sending signal 9 to service 'logd' (pid 214) process group...
[ 183.552124] init: Successfully killed process cgroup uid 1036 pid 214 in 5ms
[ 183.639312] init: Sending signal 9 to service 'tombstoned' (pid 309) process group...
[ 183.645385] init: Successfully killed process cgroup uid 1058 pid 309 in 5ms
[ 183.736694] init: umounted /dev/block/platform/msm_sdcc.1/by-name/userdata:/data opts rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=panic,data=ordered
[ 183.756683] init: umounted /dev/block/platform/msm_sdcc.1/by-name/cache:/cache opts rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,errors=panic,data=ordered
[ 183.957519] init: powerctl_shutdown_time_ms:893:0
[ 183.957672] init: Reboot ending, jumping to kernel
[ 183.958282] msm_fb_release: try to close unopened fb 2!
[ 183.958435] msm_fb_release: try to close unopened fb 1!
[ 183.958496] lm3533 0-0036: lm3533_fb_suspend
[ 183.959289] clearpad clearpad: synaptics_clearpad_set_power: state=running
[ 183.959411] clearpad clearpad: power OFF
[ 183.959503] mhl sii8334: mhl_suspend
[ 184.146392] mipi_dsi_panel mipi_dsi_panel.0: panel_off: DISPLAY_OFF sent
[ 184.234436] MFD is Null
[ 184.234619] msm_hsic_host msm_hsic_host: remove, state 4
[ 184.234771] usb usb1: USB disconnect, device number 1
[ 184.234832] usb 1-1: USB disconnect, device number 2
[ 184.237365] rmnet_usb 1-1:1.5: rmnet_usb0: unregister 'rmnet_usb' usb-msm_hsic_host-1, RmNET net device
[ 184.246795] rmnet_usb 1-1:1.6: rmnet_usb1: unregister 'rmnet_usb' usb-msm_hsic_host-1, RmNET net device
[ 184.256805] rmnet_usb 1-1:1.7: rmnet_usb2: unregister 'rmnet_usb' usb-msm_hsic_host-1, RmNET net device
[ 184.257904] rmnet_usb 1-1:1.8: rmnet_usb3: unregister 'rmnet_usb' usb-msm_hsic_host-1, RmNET net device
[ 184.267517] msm_hsic_host msm_hsic_host: USB bus 1 deregistered
[ 186.476379] mdm_power_down_common: MDM2AP_STATUS never went low. Doing a hard reset
[ 190.488281] Restarting system with command 'recovery'.
[ 190.488433]
[ 190.488494] Restarting Linux version 3.4.113-yuga-gcc1143b2199 (daedroza@TheArk) (gcc version 4.9.x 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Sun Nov 11 12:31:26 IST 2018
[ 190.488494]
[ 190.488677] Going down for restart now

No errors detected