kernel crash to splash, dmesg logs no help

[forgottenit]

My s5 crashes unpredictably.

LineageOS 14.1 doesn't seem to have pstore enabled, so there is no last_kmsg.

I got this script instead and ran it under Termux:

#!/bin/sh
dir=/path/to/storage                             # Location of persistent storage

[[ -z "$dir/count" ]] && echo 0 >"$dir/count"    # Seed the counter if missing

while sleep 0.25
do
    count=$(( $(cat "$dir/count") +1 ))          # Read the counter and increment
    [[ $count -gt 600 ]] && count=1              # Reset so we can reuse diskspace

    echo $count >"$dir/count"                    # Save the new value
    dmesg >"$dir/dmesg.$count"                   # Write the data
done

This constantly writes the log to a file ending 1, then 2, etc. when it gets to 600, it starts at 1 again (this is to stop it from filling up the whole SD card. The last modified log file reads as attached. It seems to work, but doesn't mention anything about a kernel panic. What do I do?

sm-g900f
lineageos 14.1
xposed enabled
root enabled