FYI, we noticed the below changes on

https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/urgent
commit 41c7518a5d14543fa4aa1b5b9994ac26b38c0406 ("x86/irq: Fix a race condition between vector assigning and cleanup")


+--------------------------------------------------------------------------------+------------+------------+
|                                                                                | 21a1b3bf35 | 41c7518a5d |
+--------------------------------------------------------------------------------+------------+------------+
| boot_successes                                                                 | 4          | 15         |
| boot_failures                                                                  | 2          | 2          |
| Kernel_panic-not_syncing:timer_doesn't_work_through_Interrupt-remapped_IO-APIC | 2          |            |
| backtrace:native_smp_prepare_cpus                                              | 2          |            |
| backtrace:kernel_init_freeable                                                 | 2          |            |
| BUG:kernel_early-boot_hang                                                     | 0          | 2          |
+--------------------------------------------------------------------------------+------------+------------+



<0>[   44.141521] do_IRQ: 0.118 No irq handler for vector
<0>[   46.138884] do_IRQ: 0.118 No irq handler for vector
<4>[   47.142527] ------------[ cut here ]------------
<4>[   47.149719] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:303 dev_watchdog+0x236/0x240()
<6>[   47.163221] NETDEV WATCHDOG: eth1 (ixgbe): transmit queue 0 timed out
<4>[   47.172479] Modules linked in: ipmi_devintf rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver mgag200 x86_pkg_temp_thermal coretemp ttm snd_pcm drm_kms_helper syscopyarea kvm sysfillrect sysimgblt fb_sys_fops irqbypass snd_timer crct10dif_pclmul crc32_pclmul crc32c_intel aesni_intel lrw gf128mul glue_helper snd ablk_helper soundcore cryptd pcspkr drm ipmi_si sb_edac edac_core shpchp wmi ipmi_msghandler acpi_power_meter
<4>[   47.223036] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.0-rc4-00090-g41c7518 #1
<4>[   47.233719] Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS GRNDSDP1.TP2.0025.R02.1403131625 03/13/2014
<4>[   47.247469]  ffffffff81c5dc18 ffff88085ec03da8 ffffffff81410ca2 ffff88085ec03df0
<4>[   47.258202]  ffff88085ec03de0 ffffffff81078cc6 0000000000000000 ffff880849805f00
<4>[   47.268920]  0000000000000000 ffff88107cd80000 0000000000000040 ffff88085ec03e40
<4>[   47.279624] Call Trace:
<4>[   47.284721]  <IRQ>  [<ffffffff81410ca2>] dump_stack+0x4b/0x69
<4>[   47.293522]  [<ffffffff81078cc6>] warn_slowpath_common+0x86/0xc0
<4>[   47.302561]  [<ffffffff81078d4c>] warn_slowpath_fmt+0x4c/0x50
<4>[   47.311271]  [<ffffffff817404e8>] ? intel_pstate_timer_func+0x2d8/0x390
<4>[   47.320919]  [<ffffffff817b4716>] dev_watchdog+0x236/0x240
<4>[   47.329263]  [<ffffffff817b44e0>] ? dev_deactivate_queue+0x60/0x60
<4>[   47.339630]  [<ffffffff810e2235>] call_timer_fn+0x35/0x110
<4>[   47.347926]  [<ffffffff817b44e0>] ? dev_deactivate_queue+0x60/0x60
<4>[   47.358243]  [<ffffffff810e38d1>] run_timer_softirq+0x181/0x2b0
<4>[   47.366974]  [<ffffffff8107d863>] __do_softirq+0x113/0x2c0
<4>[   47.375182]  [<ffffffff8107dbf8>] irq_exit+0xe8/0xf0
<4>[   47.382770]  [<ffffffff818c9532>] smp_apic_timer_interrupt+0x42/0x50
<4>[   47.391880]  [<ffffffff818c77f7>] apic_timer_interrupt+0x87/0x90
<4>[   47.400565]  <EOI>  [<ffffffff81741344>] ? cpuidle_enter_state+0xf4/0x240
<4>[   47.410125]  [<ffffffff81741320>] ? cpuidle_enter_state+0xd0/0x240
<4>[   47.418958]  [<ffffffff817414c7>] cpuidle_enter+0x17/0x20
<4>[   47.426885]  [<ffffffff810bc60b>] call_cpuidle+0x3b/0x70
<4>[   47.434670]  [<ffffffff817414a3>] ? cpuidle_select+0x13/0x20
<4>[   47.442813]  [<ffffffff810bc8a1>] cpu_startup_entry+0x261/0x320
<4>[   47.451223]  [<ffffffff818b9f4a>] rest_init+0x8a/0x90
<4>[   47.458618]  [<ffffffff81ea6f85>] start_kernel+0x456/0x463
<4>[   47.466457]  [<ffffffff81ea6120>] ? early_idt_handler_array+0x120/0x120
<4>[   47.475522]  [<ffffffff81ea64d7>] x86_64_start_reservations+0x2a/0x2c
<4>[   47.484364]  [<ffffffff81ea6614>] x86_64_start_kernel+0x13b/0x14a
<4>[   47.492779] ---[ end trace 51bcb14e1170afbe ]---
<4>[   47.499511] ixgbe 0000:03:00.1 eth1: initiating reset due to tx timeout


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,
Ying Huang