Hard lockup on wake_up_new_task+0xbe

Issue

• The system was crashed due to hard lockup with the below log.

[4387000.615551] event_collector_1_9_8988: Error copying UDP DNS response data
[4387000.615985] event_collector_1_9_8988: Error copying UDP DNS response data
[4387444.751811] NMI watchdog: Watchdog detected hard LOCKUP on cpu 9
[4387444.751839] Modules linked in:
[4387444.752082]  event_collector_1_9_8988(POE) nfnetlink_queue nfnetlink_log nfnetlink bluetooth rfkill team_mode_loadbalance team mpt2sas raid_class scsi_tr
ansport_sas mptctl mptbase dell_rbu dm_thin_pool dm_persistent_data dm_bio_prison dm_bufio libcrc32c sb_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm
 iTCO_wdt iTCO_vendor_support irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel mxm_wmi lrw dcdbas gf128mul glue_helper ablk_helper pcspkr cryptd ipmi_ss
if sg lpc_ich ipmi_si ipmi_devintf ipmi_msghandler mei_me mei wmi acpi_power_meter binfmt_misc ip_tables ext4 mbcache jbd2 sd_mod crc_t10dif crct10dif_generic
 mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm ahci drm libahci libata tg3 crct10dif_pclmul crct10dif_common megaraid_
sas crc32c_intel ptp drm_panel_orientation_quirks
[4387444.753784]  pps_core dm_mirror dm_region_hash dm_log dm_mod
[4387444.754476] CPU: 9 PID: 1591 Comm: matching.bin Kdump: loaded Tainted: P           OE  ------------   3.10.0-1127.8.2.el7.x86_64 #1
[4387444.755293] Hardware name: Dell Inc. PowerEdge R430/03XKDV, BIOS 2.3.4 11/08/2016
[4387444.755740] Call Trace:
[4387444.756190]  <NMI>  [<ffffffff87b7ffa5>] dump_stack+0x19/0x1b
[4387444.756670]  [<ffffffff8754f6b5>] watchdog_overflow_callback+0x135/0x140
[4387444.757158]  [<ffffffff875a9097>] __perf_event_overflow+0x57/0x100
[4387444.757655]  [<ffffffff875b2894>] perf_event_overflow+0x14/0x20
[4387444.758160]  [<ffffffff8740a9a0>] handle_pmi_common+0x1a0/0x250
[4387444.758675]  [<ffffffff877874d8>] ? ioremap_page_range+0x2e8/0x480
[4387444.759197]  [<ffffffff876052e4>] ? vunmap_page_range+0x234/0x470
[4387444.759730]  [<ffffffff8784e7e6>] ? ghes_copy_tofrom_phys+0x116/0x210
[4387444.760270]  [<ffffffff8740ac7f>] intel_pmu_handle_irq+0xcf/0x1d0
[4387444.760820]  [<ffffffff87b89031>] perf_event_nmi_handler+0x31/0x50
[4387444.761380]  [<ffffffff87b8a93c>] nmi_handle.isra.0+0x8c/0x150
[4387444.761944]  [<ffffffff87b8ab5d>] do_nmi+0x15d/0x460
[4387444.762515]  [<ffffffff87b89d9c>] end_repeat_nmi+0x1e/0x81
[4387444.763095]  [<ffffffff87517f96>] ? native_queued_spin_lock_slowpath+0x126/0x200
[4387444.763690]  [<ffffffff87517f96>] ? native_queued_spin_lock_slowpath+0x126/0x200
[4387444.764285]  [<ffffffff87517f96>] ? native_queued_spin_lock_slowpath+0x126/0x200
[43092912.402768] BUG: unable to handle kernel NULL pointer dereference at           (null)
[4387444.764878]  <EOE>  [<ffffffff87b7a024>] queued_spin_lock_slowpath+0xb/0xf
[4387444.765488]  [<ffffffff87b886d0>] _raw_spin_lock+0x20/0x30
[4387444.766107]  [<ffffffff874db1ae>] wake_up_new_task+0xbe/0x1a0
[4387444.766735]  [<ffffffff8749adb1>] do_fork+0xf1/0x330
[4387444.767367]  [<ffffffff8749b076>] SyS_clone+0x16/0x20
[4387444.768007]  [<ffffffff87b932b4>] stub_clone+0x44/0x70
[4387444.768652]  [<ffffffff87b92ed2>] ? system_call_fastpath+0x25/0x2a
[4387444.769308] Kernel panic - not syncing: Hard LOCKUP