[MultiOS][Yocto] Kernel panic when install from ISO if x2apic is enabled

[Jackie Huang]

Brief Description
-----------------
Kernel panic when install from ISO if x2apic is enabled on Dell-R740 server

Severity
--------
Major

Steps to Reproduce
------------------
1. build the image according to https://opendev.org/starlingx/meta-starlingx/src/branch/master/README.md
2. Install AIO simple with the built out image

Expected Behavior
------------------
The installation from ISO should be successful

Actual Behavior
----------------
000: ------------[ cut here ]------------
000: kernel BUG at arch/x86/kernel/apic/apic.c:1505!
000: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
000: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.0.19-rt11-yocto-preempt-rt #1
000: Hardware name: Dell Inc. PowerEdge R740xd/06G98X, BIOS 2.8.2 08/27/2020
000: RIP: 0010:setup_local_APIC+0x355/0x370
000: Code: 01 0f 85 b4 fe ff ff 85 d2 75 2b 48 8b 05 e3 8f 36 01 be 00 07 01 00 bf 50 03 00 00 48 8b 40 10 e8 f0 b2 db 00 e9 b3 fe ff ff <0f> 0b e8 64 f7 01 00 e9 94 12 00 00 e4
000: RSP: 0000:ffffffff9c403e60 EFLAGS: 00010246
000:
000: RAX: 0000000000000000 RBX: 00000000000000ff RCX: 0000000000000000
000: RDX: 0000000000000000 RSI: ffffffff9c0faae5 RDI: 0000000000000020
000: RBP: ffffffff9c403ea8 R08: 0000000000091450 R09: 0000000000000001
000: R10: ffffffff9c44b380 R11: 7220434950412064 R12: ffff8dc23ffe7980
000: R13: 0000000000000000 R14: ffffffff9c6742e0 R15: 0000000000000000
000: FS: 0000000000000000(0000) GS:ffff8dc180800000(0000) knlGS:0000000000000000
000: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
000: CR2: ffff8d93be001000 CR3: 00000001bdc12001 CR4: 00000000000606b0
000: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
000: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
000: Call Trace:
000: apic_bsp_setup+0x60/0x7b
000: apic_intr_mode_init+0x191/0x194
000: x86_late_time_init+0x1b/0x22
000: start_kernel+0x3c5/0x478
000: x86_64_start_reservations+0x24/0x26
000: x86_64_start_kernel+0x6f/0x72
000: secondary_startup_64+0xa4/0xb0
000: Modules linked in:
000:
000: ---[ end trace 0000000000000001 ]---
000: RIP: 0010:setup_local_APIC+0x355/0x370
000: Code: 01 0f 85 b4 fe ff ff 85 d2 75 2b 48 8b 05 e3 8f 36 01 be 00 07 01 00 bf 50 03 00 00 48 8b 40 10 e8 f0 b2 db 00 e9 b3 fe ff ff <0f> 0b e8 64 f7 01 00 e9 94 12 00 00 e4
000: RSP: 0000:ffffffff9c403e60 EFLAGS: 00010246
000:
000: RAX: 0000000000000000 RBX: 00000000000000ff RCX: 0000000000000000
000: RDX: 0000000000000000 RSI: ffffffff9c0faae5 RDI: 0000000000000020
000: RBP: ffffffff9c403ea8 R08: 0000000000091450 R09: 0000000000000001
000: R10: ffffffff9c44b380 R11: 7220434950412064 R12: ffff8dc23ffe7980
000: R13: 0000000000000000 R14: ffffffff9c6742e0 R15: 0000000000000000
000: FS: 0000000000000000(0000) GS:ffff8dc180800000(0000) knlGS:0000000000000000
000: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
000: CR2: ffff8d93be001000 CR3: 00000001bdc12001 CR4: 00000000000606b0
000: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
000: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
000: Kernel panic - not syncing: Attempted to kill the idle task!
000: ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---

Reproducibility
---------------
Reproducible

System Configuration
--------------------
One node system, All-in-one duplex

Branch/Pull Time/Commit
-----------------------
Branch: master
Time: Nov 2 2020
Commit: 587e1dbcf2633770a9d6717fe5f84ab6b08de2bd

Last Pass
---------

Timestamp/Logs
--------------

Test Activity
-------------

Workaround
----------

[Ghada Khalil (gkhalil)]

ow / doesn't gate the next release as this is prep work for multi-os support which is not committed for stx.5.0

[Jackie Huang (jackie-huang)]

Fixed with:
https://opendev.org/starlingx/meta-starlingx/commit/46ae8c06c124c3d0e59864d6921b1589da858670