[Kindle Fire HDX 7" & 8.9" Original Android Develop] Agenthex:
Now, I do have issues with the Wi-Fi dropping out. I have had to reboot this device... a lot.

Here is what I assume is the relevant dmesg output:

[ 92.489741] <7>ath6kl: vif 0, scan complete: 0
[ 92.549924] type=1400 audit(1611208414.089:219): avc: denied { call } for pid=1145 comm="InputDispatcher" scontext=u:r:system_server:s0 tcontext=u:r:init:s0 tclass=binder permissive=1
[ 92.550064] type=1400 audit(1611208419.149:220): avc: denied { read } for pid=167 comm="kworker/0:2" name="ath6kl.log" dev="mmcblk0p23" ino=448803 scontext=u:r:kernel:s0 tcontext=u:object_r:cnd_data_file:s0 tclass=file permissive=1
[ 92.551567] type=1400 audit(1611208419.149:220): avc: denied { read } for pid=167 comm="kworker/0:2" name="ath6kl.log" dev="mmcblk0p23" ino=448803 scontext=u:r:kernel:s0 tcontext=u:object_r:cnd_data_file:s0 tclass=file permissive=1
[ 92.551687] type=1400 audit(1611208419.149:221): avc: denied { append } for pid=167 comm="kworker/0:2" name="ath6kl.log" dev="mmcblk0p23" ino=448803 scontext=u:r:kernel:s0 tcontext=u:object_r:cnd_data_file:s0 tclass=file permissive=1
[ 92.553496] <6>ath6kl: Firmware crash detected...
[ 92.553527] <6>ath6kl: Driver version (3.5.0.569)
[ 92.553552] <6>ath6kl: Firmware version 3.5.0.574
[ 92.553588] <6>ath6kl: 0: 0x31c809f8 0x00000000 0x00000000 0x00000000
[ 92.553676] <6>ath6kl: 4: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.553710] <6>ath6kl: 8: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.553743] <6>ath6kl: 12: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.553778] <6>ath6kl: 16: 0x00000000 0x00000410 0x00901050 0x00958966
[ 92.553810] <6>ath6kl: 20: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.553851] <6>ath6kl: 24: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.553883] <6>ath6kl: 28: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.553914] <6>ath6kl: 32: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.553945] <6>ath6kl: 36: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.553976] <6>ath6kl: 40: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.554015] <6>ath6kl: 44: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.554047] <6>ath6kl: 48: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.554078] <6>ath6kl: 52: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.554109] <6>ath6kl: 56: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.554144] <6>ath6kl: 60: 0x0000001f 0x000000a0 0x00000007 0x0092a7d3
[ 92.554183] <6>ath6kl: 64: 0x00000000 0x00000000 0x00000000 0x00000000
[ 92.554217] <6>ath6kl: 68: 0x00000000 0x00000000 0x0000000b 0x0091a110
[ 92.554252] <6>ath6kl: 72: 0x0091a143 0x8092c300 0x00404e38 0x0040c498
[ 92.554288] <6>ath6kl: 76: 0x00404638 0xa5a5a5a5 0x0040463c 0x5a5a5a5a
[ 92.554323] <6>ath6kl: 80: 0x00404608 0x0040a7c4 0x004047a8 0x80900f9f
[ 92.554370] <6>ath6kl: 84: 0x004047e8 0x8092893d 0x00404828 0x80935a36
[ 92.554407] <6>ath6kl: 88: 0x00404948 0x8092893d 0x00404968 0x809aff00
[ 92.554443] <6>ath6kl: 92: 0x004049c8 0x8099f397 0x00404a18 0x80904a37
[ 92.554478] <6>ath6kl: 96: 0x00404a38 0x80904a6a 0x00404a58 0x809a5a20
[ 92.554515] <6>ath6kl: 100: 0x00404a78 0x8090c613 0x00404a98 0x8099f397
[ 92.554558] <6>ath6kl: 104: 0x00404aa8 0x8090976e 0x00404ab8 0x8090e9aa
[ 92.554595] <6>ath6kl: 108: 0x00404b08 0x80900f9f 0x00404b98 0x809a0f67
[ 92.554632] <6>ath6kl: 112: 0x00404be8 0x80904933 0x00404c08 0x80904a3f
[ 92.554668] <6>ath6kl: 116: 0x00404c28 0x80904a6a 0x00404c48 0x809a5a20
[ 92.554704] <6>ath6kl: 120: 0x00404c68 0x809092cb 0x00404c88 0x80909516
[ 92.554747] <6>ath6kl: 124: 0x00404ca8 0x8090c58c 0x00404cb8 0x8090c613
[ 92.554784] <6>ath6kl: 128: 0x00404cd8 0x8099f397 0x00404ce8 0x8090976e
[ 92.554821] <6>ath6kl: 132: 0x00404cf8 0x8090e9aa 0x00404d08 0x8099fea8
[ 92.554857] <6>ath6kl: 136: 0x00404d88 0x809491d7 0x00404d98 0x8090eb2a
[ 92.554893] <6>ath6kl: 140: 0x00404dc8 0x8090fae4 0x00404df8 0x80900f9f
[ 92.554936] <6>ath6kl: 144: 0x00404e08 0x8094581f 0x00404e28 0x80904a37
[ 92.554973] <6>ath6kl: 148: 0x00404e38 0x8099d816 0x00404e48 0x80904a6a
[ 92.555009] <6>ath6kl: 152: 0x00404e78 0x8095f52e 0x00404e98 0x809a4d65
[ 92.555046] <6>ath6kl: 156: 0x00404ec8 0x8095e37f 0x00404ee8 0x8095cbc0
[ 92.555082] <6>ath6kl: 160: 0x00404f18 0x80902e38 0x00404f48 0x809a652b
[ 92.555128] <6>ath6kl: 164: 0x00404f78 0x80901944 0xaaaaaaaa 0xaaaaaaaa
[ 92.555167] <6>ath6kl: notify firmware crash to user f48e7360
[ 92.555570] <3>ath6kl: wmi is not ready