On Amazon EC2 Nitro platform running RHEL 7/8, the Fast boot using "kexec -e " and "systemctl kexec" causes the kernel to crash.

Issue

• On Amazon EC2 Nitro platform running RHEL 7/8, the Fast boot using kexec -e and systemctl kexec causes the kernel to crash.
• The same kernel panic is appearing with kexec -p and echo c > /proc/sysrq-trigger as well.

[    3.327901] sched: Unexpected reschedule of offline CPU#1!
[    3.334363] WARNING: CPU: 0 PID: 1 at arch/x86/kernel/smp.c:128 native_smp_send_reschedule+0x34/0x40
[    3.346699] Modules linked in:
[    3.352238] CPU: 0 PID: 1 Comm: init Not tainted 4.18.0-80.1.2.el8_0.x86_64 #1
[    3.363631] Hardware name: Amazon EC2 t3.large/, BIOS 1.0 10/16/2017
[    3.370639] RIP: 0010:native_smp_send_reschedule+0x34/0x40
[    3.377330] Code: 05 21 90 3b 01 73 15 48 8b 05 78 af 10 01 be fd 00 00 00 48 8b 40 30 e9 9a 94 bb 00 89 fe 48 c7 c7 a8 68 e8 9e e8 b6 28 06 00 <0f> 0b c3 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 53 48 83 ec 20
[    3.398020] RSP: 0018:ffff98e9f9403e48 EFLAGS: 00010086
[    3.404505] RAX: 0000000000000000 RBX: ffff98e9f9523080 RCX: ffffffff9f059d28
[    3.411891] RDX: 0000000000000001 RSI: 0000000000000096 RDI: 0000000000000046
[    3.419227] RBP: ffff98e8c6debd80 R08: 00000000000001c4 R09: ffff98e7c00bba20
[    3.426548] R10: ffffffff9e261930 R11: ffffffff9f81db0d R12: ffff98e8c6dec93c
[    3.433821] R13: ffff98e9f9403e98 R14: 0000000000000046 R15: 0000000000023080
[    3.441132] FS:  0000000000000000(0000) GS:ffff98e9f9400000(0000) knlGS:0000000000000000
[    3.452947] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.459798] CR2: 00007f4744f65e04 CR3: 000000020d40a001 CR4: 00000000007606f0
[    3.467213] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    3.474633] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    3.482040] PKRU: 55555554
[    3.487370] Call Trace:
[    3.492728]  <IRQ>
[    3.497747]  check_preempt_curr+0x7a/0x90
[    3.503641]  ttwu_do_wakeup+0x19/0x130
[    3.509483]  try_to_wake_up+0x1e3/0x4b0
[    3.515407]  swake_up_locked.part.2+0x13/0x40
[    3.521560]  swake_up+0x27/0x40
[    3.527235]  rcu_process_callbacks+0x3bc/0x450
[    3.533416]  __do_softirq+0xe4/0x2f8
[    3.539264]  irq_exit+0xf7/0x100
[    3.544813]  smp_apic_timer_interrupt+0x74/0x130
[    3.551110]  apic_timer_interrupt+0xf/0x20
[    3.557119]  </IRQ>
[    3.562164] RIP: 0010:panic+0x201/0x247
[    3.568011] Code: eb a6 83 3d 3f b9 96 01 00 74 05 e8 28 51 02 00 48 c7 c6 20 62 81 9f 48 c7 c7 48 12 e9 9e e8 43 31 06 00 fb 66 0f 1f 44 00 00 <31> db e8 87 3e 0d 00 4c 39 eb 7c 1d 41 83 f4 01 48 8b 05 e7 b8 96
[    3.588882] RSP: 0018:ffffa64200c57e10 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[    3.600512] RAX: 0000000000000056 RBX: ffff98e8c6dabd00 RCX: ffffffff9f059d28
[    3.607747] RDX: 0000000000000000 RSI: 0000000000000096 RDI: 0000000000000046
[    3.614870] RBP: ffffa64200c57e80 R08: 00000000000001c2 R09: ffff98e7c00bb8e0
[    3.622025] R10: ffffffff9e261930 R11: ffffffff9f81db6d R12: 0000000000000000
[    3.629309] R13: 0000000000000000 R14: 0000000000000001 R15: ffff98e9cd3be8f0
[    3.636457]  ? vgacon_putc+0x10/0x10
[    3.642111]  do_exit.cold.22+0x26/0xc1
[    3.647819]  ? __do_page_fault+0x26d/0x4e0
[    3.653744]  do_group_exit+0x3a/0xa0
[    3.659436]  __x64_sys_exit_group+0x14/0x20
[    3.665353]  do_syscall_64+0x5b/0x1b0
[    3.671109]  entry_SYSCALL_64_after_hwframe+0x65/0xca
[    3.677631] RIP: 0033:0x7f4744f65e2e
[    3.683574] Code: Bad RIP value.
[    3.689383] RSP: 002b:00007ffc31fe74d8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
[    3.700687] RAX: ffffffffffffffda RBX: 00007f4744f6e528 RCX: 00007f4744f65e2e
[    3.707849] RDX: 000000000000007f RSI: 000000000000003c RDI: 000000000000007f
[    3.715110] RBP: 00007f47451704f0 R08: 00000000000000e7 R09: 00007ffc31fe73e8
[    3.722450] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002
[    3.729653] R13: 0000000000000002 R14: 00007f4745170538 R15: 00007f4745170520
[    3.736929] ---[ end trace 8c393e698ea328c8 ]--