[Fire HD 8 and HD 10 General] rklsimmersion:
Keep getting error after step 8

So, I know this thread is a little old, but it's still the best I've found. I have a Fire HD 8 (7th gen) with firmware 5.6.2.0. I followed the steps above, and this is my result after step 8. I tried reseting the kindle a few times, and it still didn't work.

<WSRoot><Command>0</Command></WSRoot>

<WSRoot><InitResource>0</InitResource></WSRoot>

Decrypt Success: /data/local/tmp/fileWork

Output File Name: /data/local/tmp/fileWork.

<WSRoot><Decrypt>0</Decrypt></WSRoot>

extracting: /data/local/tmp/Bridge_wsroot.sh

extracting: /data/local/tmp/krdirtyCow32

extracting: /data/local/tmp/krdirtyCow64

extracting: /data/local/tmp/libsupol.so

extracting: /data/local/tmp/my.sh

extracting: /data/local/tmp/mysupolicy

extracting: /data/local/tmp/patch_script.sh

extracting: /data/local/tmp/root3

<WSRoot><Decompression>0</Decompression></WSRoot>

execute string: /data/local/tmp/root3 /data/local/tmp/ 2

WARNING: linker: /data/local/tmp/root3: unused DT entry: type 0x6ffffffe arg 0x600

WARNING: linker: /data/local/tmp/root3: unused DT entry: type 0x6fffffff arg 0x1

ro.build.version.sdk :22

ro.product.cpu.abi :arm64-v8a

is x64

execute string: /data/local/tmp/krdirtyCow64 /data/local/tmp/ 2

WARNING: linker: /data/local/tmp/krdirtyCow64: unused DT entry: type 0x6ffffffe arg 0xd30

WARNING: linker: /data/local/tmp/krdirtyCow64: unused DT entry: type 0x6fffffff arg 0x1

path : /data/local/tmp/

path : /data/local/tmp

[*] path_script:/data/local/tmp/patch_script.sh /data/local/tmp

supolicy v2.76 (ndk:armeabi) - Copyright (C) 2014-2016 - Chainfire

Patching policy [/data/local/tmp/sepolicy] --> [/data/local/tmp/load] ...

-permissive:zygote=ok

-permissive:kernel=ok

-permissive:init=ok

-permissive:su=ok

-permissive:init_shell=ok

-permissive:shell=ok

-permissive:servicemanager=ok

- Success

find_opcode offset:2d0 opcode:aaffbbee

find ok star:7f7a174008 end:7f7a1742d8 size:2d0

sh : /data/local/tmp/my.sh /data/local/tmp 2 fwrite is count 210211 /data/local/tmp/load1

fwrite is count 54228 /data/local/tmp/load2

find_opcode offset:2b4 opcode:eaeaeaea

find_opcode offset:2b8 opcode:ebebebeb

find_opcode offset:22d opcode:abababab

load = 408f7 load1 = 33523 load2 = d3d4

find_opcode offset:2b0 opcode:efefefef

find_opcode offset:24d opcode:cdcdcdcd

find_opcode offset:2bc opcode:acacacac

init_shellcode

loadsize:264439

loadpath:/data/local/tmp/load

shpath:/data/local/tmp/my.sh /data/local/tmp 2

shpath:2bc

open /proc

PID:188

find logd pid : bc

_inject_start_s:0x7f7a174008

Copying /sepolicy to /data/local/tmp/cp_sepolicy

cow_exploit_mv_file_init: Overriding /sepolicy from /data/local/tmp/load1

size: 210211

[*] mmap 0x7f79f68000;

[*] exploit (patch)

[*] currently 0x7f79f68000=8f97cff8c

sched_setaffinity: Invalid argument[*] madvise = 0x7f79f68000 210211

checking the patch ... exploit

sleep 1s

...

sleep 1s

exit fork(), loop time more then 30s

<WSRoot><Exploit>0x00000332</Exploit></WSRoot>

check done

sched_setaffinity: Invalid argument<WSRoot><Exploit>0x00000382</Exploit></WSRoot>

FAIL : load1 --> /sepolicy

<WSRoot><Exploit>0x00000341</Exploit></WSRoot>

<WSRoot><Exploit>0x00000881</Exploit></WSRoot>

<WSRoot><Done>0x00000172</Done></WSRoot>