What is the kernel die message What is the kernel die message 0

These messages come from static int __die(const char *str, int err, struct pt_regs *regs) in arch/arm64kernel/traps.c
So let's see what they mean.

[    0.811029] Internal error: <reason in string>: <error code> [#<die_count>] PREEMPT SMP //
[    0.816251] Modules linked in:
[    0.819383] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.14.0-rc7-linaro-hikey960+ #1
[    0.827174] Hardware name: HiKey960 (DT)
[    0.831162] task: ffff8000dc910000 task.stack: ffff000008068000
[    0.837164] PC is at amba_device_try_add+0xe8/0x268
[    0.842089] LR is at amba_device_try_add+0xcc/0x268
[    0.847031] pc : [<ffff0000084f5320>] lr : [<ffff0000084f5304>] pstate: 40000045
[    0.854489] sp : ffff00000806bbe0
[    0.857868] x29: ffff00000806bbe0 x28: ffff000009040588 
[    0.863246] x27: 0000000000000004 x26: 0000000000000000 
[    0.868622] x25: ffff8000defe5088 x24: 0000000000000000 
[    0.873999] x23: ffff00000944d000 x22: 0000000000001000 
[    0.879380] x21: ffff8000dc21a6f8 x20: 0000000000000000 
[    0.884752] x19: ffff8000dc21a400 x18: 0000000000000020 
[    0.890133] x17: 0000000000000001 x16: 00000000deadbeef 
[    0.895505] x15: ffffffffffffffff x14: ffffffffffffffff 
[    0.900882] x13: 0000000000000020 x12: 0101010101010101 
[    0.906258] x11: 0000000000000028 x10: 0101010101010101 
[    0.911635] x9 : 0000000000000000 x8 : ffff8000dc203d80 
[    0.917011] x7 : 0000000000000000 x6 : 000000000000003f 
[    0.922388] x5 : 0000000000000000 x4 : ffff0000091d4190 
[    0.927765] x3 : 0000000000000000 x2 : ffff00000944dfe0 
[    0.933141] x1 : 0000000000000000 x0 : 0000000000000000 
[    0.938519] Process swapper/0 (pid: 1, stack limit = 0xffff000008068000) //line236
[    0.945285] Call trace:
[    0.947798] Exception stack(0xffff00000806baa0 to 0xffff00000806bbe0)
[    0.954304] baa0: 0000000000000000 0000000000000000 ffff00000944dfe0 0000000000000000
[    0.962196] bac0: ffff0000091d4190 0000000000000000 000000000000003f 0000000000000000
[    0.970091] bae0: ffff8000dc203d80 0000000000000000 0101010101010101 0000000000000028
[    0.977979] bb00: 0101010101010101 0000000000000020 ffffffffffffffff ffffffffffffffff
[    0.985869] bb20: 00000000deadbeef 0000000000000001 0000000000000020 ffff8000dc21a400
[    0.993761] bb40: 0000000000000000 ffff8000dc21a6f8 0000000000001000 ffff00000944d000
[    1.001653] bb60: 0000000000000000 ffff8000defe5088 0000000000000000 0000000000000004
[    1.009548] bb80: ffff000009040588 ffff00000806bbe0 ffff0000084f5304 ffff00000806bbe0
[    1.017435] bba0: ffff0000084f5320 0000000040000045 ffff00000806bbe0 ffff0000084f5304
[    1.025327] bbc0: ffffffffffffffff 00000000fffffffe ffff00000806bbe0 ffff0000084f5320
[    1.033221] [<ffff0000084f5320>] amba_device_try_add+0xe8/0x268
[    1.039201] [<ffff0000084f5588>] amba_device_add+0x18/0xe0
[    1.044762] [<ffff000008922fc8>] of_platform_bus_create+0x2b8/0x320
[    1.051082] [<ffff000008922e74>] of_platform_bus_create+0x164/0x320
[    1.057413] [<ffff0000089231a0>] of_platform_populate+0x70/0xd0
[    1.063404] [<ffff000008f8e218>] of_platform_default_populate_init+0x64/0x78
[    1.070513] [<ffff000008083980>] do_one_initcall+0x38/0x120
[    1.076150] [<ffff000008f40d0c>] kernel_init_freeable+0x188/0x22c
[    1.082305] [<ffff000008a82268>] kernel_init+0x10/0x100
[    1.087590] [<ffff000008084b58>] ret_from_fork+0x10/0x18
[    1.092969] Code: f9001fb8 8b0202e2 52800001 52800018 (b9400040) 
[    1.099148] ---[ end trace 0af73e04a0d75c0a ]---
[    1.103845] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[    1.103845] 
[    1.113090] SMP: stopping secondary CPUs
[    1.117094] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[    1.117094]