FYI, we noticed the below changes on

https://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux.git x86
commit 540cc882de7d1da2e71591e215f0e04cb89883fa ("x86 tsc_msr: Extend to include Intel Core Architecture")


+--------------------------------------------------------------------------------+------------+------------+
|                                                                                | 4a62ba36cf | 540cc882de |
+--------------------------------------------------------------------------------+------------+------------+
| boot_successes                                                                 | 6          | 2          |
| boot_failures                                                                  | 0          | 4          |
| Kernel_panic-not_syncing:timer_doesn't_work_through_Interrupt-remapped_IO-APIC | 0          | 4          |
| backtrace:native_smp_prepare_cpus                                              | 0          | 4          |
| backtrace:kernel_init_freeable                                                 | 0          | 4          |
+--------------------------------------------------------------------------------+------------+------------+



[   10.356175]  apic 8 pin 22 not connected
[   10.423608]  apic 8 pin 23 not connected
[   10.491416] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[   10.604127] Kernel panic - not syncing: timer doesn't work through Interrupt-remapped IO-APIC
[   10.749903] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.6.0-rc1-00006-g540cc88 #1
[   10.878087] Hardware name: Dell Inc. OptiPlex 9020/0DNKMN, BIOS A05 12/05/2013
[   11.001839]  0000000000000000 ffff88020b19fd28 ffffffff8142e39a ffffffff81c805d8
[   11.131854]  ffff88020b19fdb8 ffff88020b19fda8 ffffffff81172af3 0000000000000008
[   11.261797]  ffff88020b19fdb8 ffff88020b19fd50 ffffffffffffffcf 00000134d11c57b3
[   11.391710] Call Trace:
[   11.434242]  [<ffffffff8142e39a>] dump_stack+0x63/0x89
[   11.522290]  [<ffffffff81172af3>] panic+0xd0/0x217
[   11.604443]  [<ffffffff81574c4c>] panic_if_irq_remap+0x1c/0x20
[   11.704247]  [<ffffffff81ff27b3>] setup_IO_APIC+0x36e/0x7d4
[   11.799615]  [<ffffffff81ff123c>] apic_bsp_setup+0xa1/0xac
[   11.893529]  [<ffffffff81feeeb9>] native_smp_prepare_cpus+0x277/0x2f9
[   12.003570]  [<ffffffff81fda056>] kernel_init_freeable+0xcd/0x21f
[   12.107762]  [<ffffffff818e93ce>] kernel_init+0xe/0x110
[   12.197239]  [<ffffffff818f6682>] ret_from_fork+0x22/0x40
[   12.289687]  [<ffffffff818e93c0>] ? rest_init+0x90/0x90
ACPI MEMORY or I/O RESET_REG.


To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Kernel Test Robot