try backing up /proc or /sys fs files
# credits
# https://stackoverflow.com/a/21801893/4817100
find /proc/irq/ -type f -name smp_affinity | while read F ; do
D=tmp/$(dirname $F)
test -d $D || mkdir -p $D
test -f tmp/$F || sudo cat $F > tmp/$F
done
sudo cat /proc/interrupts > tmp/proc/interrupts
find /sys/devices/system/cpu/cpu*/topology -type f | while read F ; do
D=tmp/$(dirname $F)
test -d $D || mkdir -p $D
test -f tmp/$F || sudo cat $F > tmp/$F
done