22: kd> knL
# Child-SP RetAddr Call Site
00 ffff8681`2e089d88 fffff802`d4439507 nt!KeBugCheckEx
01 ffff8681`2e089d90 fffff802`d4436778 nt!KeAccumulateTicks+0x407
02 ffff8681`2e089df0 fffff802`d4c264e5 nt!KeClockInterruptNotify+0xb8
03 ffff8681`2e089f40 fffff802`d44b13f6 hal!HalpTimerClockIpiRoutine+0x15
04 ffff8681`2e089f70 fffff802`d4564ada nt!KiCallInterruptServiceRoutine+0x106
05 ffff8681`2e089fb0 fffff802`d4564fc7 nt!KiInterruptSubDispatchNoLockNoEtw+0xea
06 ffff8681`2e081d50 fffff802`d441a314 nt!KiInterruptDispatchNoLockNoEtw+0x37
07 ffff8681`2e081ee0 fffff802`d441a2c4 nt!KxWaitForLockOwnerShip+0x34
08 ffff8681`2e081f10 fffff801`ec5272b4 nt!KeAcquireInStackQueuedSpinLock+0x44 << Implictly raises the IRQL Level to 2
09 ffff8681`2e081f40 00000000`00000001 sbwfw+0x72b4 << Our issue
0a ffff8681`2e081f48 00000000`0000dd86 0x1
0b ffff8681`2e081f50 ffff8681`2e082190 0xdd86
0c ffff8681`2e081f58 fffff801`ec535750 0xffff8681`2e082190
0d ffff8681`2e081f60 ffff8681`2e082190 sbwfw+0x15750
0e ffff8681`2e081f68 fffff801`ec5250af 0xffff8681`2e082190
0f ffff8681`2e081f70 ffffb181`3910bcac sbwfw+0x50af
10 ffff8681`2e081f78 00000000`001f419a 0xffffb181`3910bcac
11 ffff8681`2e081f80 ffff8681`2e082190 0x1f419a
12 ffff8681`2e081f88 ffffa98d`24a2aee0 0xffff8681`2e082190
13 ffff8681`2e081f90 fffff801`ec5666c8 0xffffa98d`24a2aee0
14 ffff8681`2e081f98 fffff801`ec527741 sbwfw+0x466c8
15 ffff8681`2e081fa0 00000000`00000001 sbwfw+0x7741
16 ffff8681`2e081fa8 ffff8681`2e082068 0x1
17 ffff8681`2e081fb0 ffff8681`2e18d350 0xffff8681`2e082068
18 ffff8681`2e081fb8 fffff801`ec566dd9 0xffff8681`2e18d350
19 ffff8681`2e081fc0 00000000`00000002 sbwfw+0x46dd9
1a ffff8681`2e081fc8 fffff801`ec5666d8 0x2
1b ffff8681`2e081fd0 ffffa98d`050f0230 sbwfw+0x466d8
1c ffff8681`2e081fd8 ffffa98d`06d9bd01 0xffffa98d`050f0230
1d ffff8681`2e081fe0 00000000`00000001 0xffffa98d`06d9bd01
1e ffff8681`2e081fe8 ffffa98d`06ffd7a0 0x1
1f ffff8681`2e081ff0 00000000`00000001 0xffffa98d`06ffd7a0
20 ffff8681`2e081ff8 fffff801`ec5279b4 0x1
21 ffff8681`2e082000 00000000`00000000 sbwfw+0x79b4