Message-ID: <Y6FK++b4buO5EgjD@MiWiFi-R3L-srv>
Date:   Tue, 20 Dec 2022 13:41:15 +0800
From:   Baoquan He <bhe@...hat.com>
To:     linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>
Cc:     x86@...nel.org, kexec@...ts.infradead.org
Subject: kdump kernel randomly hang with tick_periodic call trace on bare
 metal system

On one intel bare metal system, I can randomly reproduce the kdump hang
as below with tick_periodic call trace. Attach the kernel config for
reference.

==========Boot log of kdump kernel hang===================
+ kdumpctl restart
kdump: kexec: unloaded kdump kernel
kdump: Stopping kdump: [OK]
kdump: kexec: loaded kdump kerne[ 3167.436227] sysrq: Trigger a crash
l
kdump: Starti[ 3167.440786] Kernel panic - not syncing: sysrq triggered crash
[ 3167.447870] CPU: 0 PID: 2161 Comm: sysrq.sh Kdump: loaded Tainted: G          I        6.0.11-300.fc37.x86_64 #1
[ 3167.458024] Hardware name: Dell Inc. PowerEdge R410/0N051F, BIOS 1.11.0 07/20/2012
[ 3167.465576] Call Trace:
[ 3167.468016]  <TASK>
[ 3167.470109]  dump_stack_lvl+0x44/0x5c
[ 3167.473768]  panic+0x10a/0x2c0
[ 3167.476819]  sysrq_handle_crash+0x16/0x20
[ 3167.480821]  __handle_sysrq.cold+0x44/0x11c
[ 3167.484997]  write_sysrq_trigger+0x24/0x40
[ 3167.489083]  proc_reg_write+0x56/0xa0
[ 3167.492738]  ? preempt_count_add+0x47/0xa0
[ 3167.496826]  vfs_write+0xb9/0x3e0
[ 3167.500136]  ksys_write+0x5b/0xd0
[ 3167.503442]  do_syscall_64+0x5b/0x80
[ 3167.507009]  ? do_user_addr_fault+0x1ef/0x690
[ 3167.511360]  ? exc_page_fault+0x70/0x170
[ 3167.515276]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 3167.520318] RIP: 0033:0x7f4aa81840c4
[ 3167.523893] Code: 15 71 7d 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 80 3d 3d 05 0e 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 48 83 ec 28 48 89 54 24 18 48
[ 3167.542626] RSP: 002b:00007fff15bbf448 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3167.550180] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4aa81840c4
[ 3167.557300] RDX: 0000000000000002 RSI: 000055c0145f6ca0 RDI: 0000000000000001
[ 3167.564417] RBP: 000055c0145f6ca0 R08: 0000000000000001 R09: 0000000000000073
[ 3167.571535] R10: 0000000000001000 R11: 0000000000000202 R12: 0000000000000002
[ 3167.578654] R13: 00007f4aa825d780 R14: 0000000000000002 R15: 00007f4aa8258a00
[ 3167.585777]  </TASK>
[    0.000000] Linux version 6.0.11-300.fc37.x86_64 (mockbuild@...rnel01.iad2.fedoraproject.org) (gcc (GCC) 12.2.1 20221121 (Red Hat 12.2.1-4), GNU ld version 2.38-25.fc37) #1 SMP PREEMPT_DYNAMIC Fri Dec 2 20:47:45 UTC 2022
[    0.000000] Command line: elfcorehdr=0xbf000000 BOOT_IMAGE=(hd0,gpt2)/vmlinuz-6.0.11-300.fc37.x86_64 ro console=ttyS1,115200n81 nr_cpus=2 irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off numa=off udev.children-max=2 panic=10 acpi_no_memhotplug transparent_hugepage=never nokaslr hest_disable novmcoredd cma=0 hugetlb_cma=0 disable_cpu_apicid=16 iTCO_wdt.pretimeout=0
[    0.000000] x86/fpu: x87 FPU will use FXSAVE
[    0.000000] signal: max sigframe size: 1440
[    0.000000] BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x0000000000000fff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000001000-0x000000000009dfff] usable
[    0.000000] BIOS-e820: [mem 0x00000000bf001000-0x00000000ceffffff] usable
[    0.000000] BIOS-e820: [mem 0x00000000cf369000-0x00000000cf37efff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000cf37f000-0x00000000cf3bdfff] ACPI data
[    0.000000] BIOS-e820: [mem 0x00000000cf3be000-0x00000000cfffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000e0000000-0x00000000efffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fe000000-0x00000000ffffffff] reserved
[    0.000000] random: crng init done
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] extended physical RAM map:
[    0.000000] reserve setup_data: [mem 0x0000000000000000-0x0000000000000fff] reserved
[    0.000000] reserve setup_data: [mem 0x0000000000001000-0x000000000009dfff] usable
[    0.000000] reserve setup_data: [mem 0x00000000bf001000-0x00000000ceff81df] usable
[    0.000000] reserve setup_data: [mem 0x00000000ceff81e0-0x00000000ceff820f] usable
[    0.000000] reserve setup_data: [mem 0x00000000ceff8210-0x00000000ceffffff] usable
[    0.000000] reserve setup_data: [mem 0x00000000cf369000-0x00000000cf37efff] reserved
[    0.000000] reserve setup_data: [mem 0x00000000cf37f000-0x00000000cf3bdfff] ACPI data
[    0.000000] reserve setup_data: [mem 0x00000000cf3be000-0x00000000cfffffff] reserved
[    0.000000] reserve setup_data: [mem 0x00000000e0000000-0x00000000efffffff] reserved
[    0.000000] reserve setup_data: [mem 0x00000000fe000000-0x00000000ffffffff] reserved
[    0.000000] SMBIOS 2.6 present.
[    0.000000] DMI: Dell Inc. PowerEdge R410/0N051F, BIOS 1.11.0 07/20/2012
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.000000] tsc: Detected 2792.956 MHz processor
[    0.002401] last_pfn = 0xcf000 max_arch_pfn = 0x400000000
[    0.003426] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WP  UC- WT  
[    0.014635] found SMP MP-table at [mem 0x000fe710-0x000fe71f]
[    0.015076] RAMDISK: [mem 0xc9073000-0xcaffffff]
[    0.015116] ACPI: Early table checksum verification disabled
[    0.015121] ACPI: RSDP 0x00000000000F1070 000024 (v02 DELL  )
[    0.015126] ACPI: XSDT 0x00000000000F1174 00009C (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015133] ACPI: FACP 0x00000000CF3A3F9C 0000F4 (v03 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015140] ACPI: DSDT 0x00000000CF37F000 003BAF (v01 DELL   PE_SC3   00000001 INTL 20050624)
[    0.015145] ACPI: FACS 0x00000000CF3A6000 000040
[    0.015149] ACPI: FACS 0x00000000CF3A6000 000040
[    0.015153] ACPI: APIC 0x00000000CF3A3478 00015E (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015157] ACPI: SPCR 0x00000000CF3A35D8 000050 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015162] ACPI: HPET 0x00000000CF3A362C 000038 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015166] ACPI: DMAR 0x00000000CF3A3668 0001B0 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015171] ACPI: MCFG 0x00000000CF3A38C4 00003C (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015175] ACPI: WD__ 0x00000000CF3A3904 000134 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015179] ACPI: SLIC 0x00000000CF3A3A3C 000024 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015184] ACPI: ERST 0x00000000CF382D50 000270 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015188] ACPI: HEST 0x00000000CF382FC0 0003A8 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015192] ACPI: BERT 0x00000000CF382BB0 000030 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015197] ACPI: EINJ 0x00000000CF382BE0 000170 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015201] ACPI: SRAT 0x00000000CF3A3BC0 000370 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015205] ACPI: TCPA 0x00000000CF3A3F34 000064 (v02 DELL   PE_SC3   00000001 DELL 00000001)
[    0.015210] ACPI: SSDT 0x00000000CF3A7000 004A24 (v01 INTEL  PPM RCM  80000001 INTL 20061109)
[    0.015213] ACPI: Reserving FACP table memory at [mem 0xcf3a3f9c-0xcf3a408f]
[    0.015215] ACPI: Reserving DSDT table memory at [mem 0xcf37f000-0xcf382bae]
[    0.015216] ACPI: Reserving FACS table memory at [mem 0xcf3a6000-0xcf3a603f]
[    0.015217] ACPI: Reserving FACS table memory at [mem 0xcf3a6000-0xcf3a603f]
[    0.015219] ACPI: Reserving APIC table memory at [mem 0xcf3a3478-0xcf3a35d5]
[    0.015220] ACPI: Reserving SPCR table memory at [mem 0xcf3a35d8-0xcf3a3627]
[    0.015221] ACPI: Reserving HPET table memory at [mem 0xcf3a362c-0xcf3a3663]
[    0.015222] ACPI: Reserving DMAR table memory at [mem 0xcf3a3668-0xcf3a3817]
[    0.015223] ACPI: Reserving MCFG table memory at [mem 0xcf3a38c4-0xcf3a38ff]
[    0.015225] ACPI: Reserving WD__ table memory at [mem 0xcf3a3904-0xcf3a3a37]
[    0.015226] ACPI: Reserving SLIC table memory at [mem 0xcf3a3a3c-0xcf3a3a5f]
[    0.015227] ACPI: Reserving ERST table memory at [mem 0xcf382d50-0xcf382fbf]
[    0.015228] ACPI: Reserving HEST table memory at [mem 0xcf382fc0-0xcf383367]
[    0.015230] ACPI: Reserving BERT table memory at [mem 0xcf382bb0-0xcf382bdf]
[    0.015231] ACPI: Reserving EINJ table memory at [mem 0xcf382be0-0xcf382d4f]
[    0.015232] ACPI: Reserving SRAT table memory at [mem 0xcf3a3bc0-0xcf3a3f2f]
[    0.015233] ACPI: Reserving TCPA table memory at [mem 0xcf3a3f34-0xcf3a3f97]
[    0.015235] ACPI: Reserving SSDT table memory at [mem 0xcf3a7000-0xcf3aba23]
[    0.015266] NUMA turned off
[    0.015267] Faking a node at [mem 0x0000000000000000-0x00000000ceffffff]
[    0.015278] NODE_DATA(0) allocated [mem 0xcefcd1c0-0xceff81bf]
[    0.016560] Zone ranges:
[    0.016565]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
[    0.016569]   DMA32    [mem 0x0000000001000000-0x00000000ceffffff]
[    0.016572]   Normal   empty
[    0.016573]   Device   empty
[    0.016575] Movable zone start for each node
[    0.016578] Early memory node ranges
[    0.016578]   node   0: [mem 0x0000000000001000-0x000000000009dfff]
[    0.016580]   node   0: [mem 0x00000000bf001000-0x00000000ceffffff]
[    0.016583] Initmem setup node 0 [mem 0x0000000000001000-0x00000000ceffffff]
[    0.016591] On node 0, zone DMA: 1 pages in unavailable ranges
[    0.018109] On node 0, zone DMA32: 61283 pages in unavailable ranges
[    0.018187] On node 0, zone DMA32: 4096 pages in unavailable ranges
[    0.018319] ACPI: PM-Timer IO Port: 0x808
[    0.018329] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 1/0x0 ignored.
[    0.018331] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 2/0x12 ignored.
[    0.018332] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 3/0x2 ignored.
[    0.018334] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 4/0x14 ignored.
[    0.018335] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 5/0x4 ignored.
[    0.018336] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 6/0x16 ignored.
[    0.018338] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 7/0x6 ignored.
[    0.018339] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 8/0x11 ignored.
[    0.018341] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 9/0x1 ignored.
[    0.018342] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 10/0x13 ignored.
[    0.018343] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 11/0x3 ignored.
[    0.018345] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 12/0x15 ignored.
[    0.018346] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 13/0x5 ignored.
[    0.018347] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 14/0x17 ignored.
[    0.018348] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 15/0x7 ignored.
[    0.018352] ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
[    0.018364] IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23
[    0.018371] IOAPIC[1]: apic_id 1, version 32, address 0xfec80000, GSI 32-55
[    0.018374] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.018376] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.018382] ACPI: Using ACPI (MADT) for SMP configuration information
[    0.018383] ACPI: HPET id: 0x8086a301 base: 0xfed00000
[    0.018387] ACPI: SPCR: SPCR table version 1
[    0.018389] ACPI: SPCR: console: uart,io,0x3f8,115200
[    0.018392] smpboot: 16 Processors exceeds NR_CPUS limit of 1
[    0.018393] smpboot: Allowing 1 CPUs, 0 hotplug CPUs
[    0.018411] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[    0.018413] PM: hibernation: Registered nosave memory: [mem 0x0009e000-0xbf000fff]
[    0.018415] PM: hibernation: Registered nosave memory: [mem 0xceff8000-0xceff8fff]
[    0.018417] PM: hibernation: Registered nosave memory: [mem 0xceff8000-0xceff8fff]
[    0.018420] [mem 0x0009e000-0xbf000fff] available for PCI devices
[    0.018422] Booting paravirtualized kernel on bare hardware
[    0.018425] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns
[    0.024691] setup_percpu: NR_CPUS:8192 nr_cpumask_bits:1 nr_cpu_ids:1 nr_node_ids:1
[    0.024997] percpu: Embedded 61 pages/cpu s212992 r8192 d28672 u2097152
[    0.025044] Fallback order for Node 0: 0 
[    0.025048] Built 1 zonelists, mobility grouping on.  Total pages: 64665
[    0.025050] Policy zone: DMA32
[    0.025052] Kernel command line: elfcorehdr=0xbf000000 BOOT_IMAGE=(hd0,gpt2)/vmlinuz-6.0.11-300.fc37.x86_64 ro console=ttyS1,115200n81 nr_cpus=2 irqpoll nr_cpus=1 reset_devices cgroup_disable=memory mce=off numa=off udev.children-max=2 panic=10 acpi_no_memhotplug transparent_hugepage=never nokaslr hest_disable novmcoredd cma=0 hugetlb_cma=0 disable_cpu_apicid=16 iTCO_wdt.pretimeout=0
[    0.025183] Misrouted IRQ fixup and polling support enabled
[    0.025184] This may significantly impact system performance
[    0.025316] cgroup: Disabling memory control group subsystem
[    0.025583] Unknown kernel command line parameters "nokaslr BOOT_IMAGE=(hd0,gpt2)/vmlinuz-6.0.11-300.fc37.x86_64", will be passed to user space.
[    0.025618] Dentry cache hash table entries: 32768 (order: 6, 262144 bytes, linear)
[    0.025638] Inode-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.025916] mem auto-init: stack:all(zero), heap alloc:off, heap free:off
[    0.027119] Memory: 169244K/262768K available (16393K kernel code, 3227K rwdata, 12824K rodata, 3024K init, 4680K bss, 93268K reserved, 0K cma-reserved)
[    0.027289] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.027310] Kernel/User page tables isolation: enabled
[    0.027339] ftrace: allocating 50892 entries in 199 pages
[    0.037814] ftrace: allocated 199 pages with 5 groups
[    0.038704] Dynamic Preempt: voluntary
[    0.038737] rcu: Preemptible hierarchical RCU implementation.
[    0.038739] rcu: 	RCU restricting CPUs from NR_CPUS=8192 to nr_cpu_ids=1.
[    0.038741] 	Trampoline variant of Tasks RCU enabled.
[    0.038741] 	Rude variant of Tasks RCU enabled.
[    0.038742] 	Tracing variant of Tasks RCU enabled.
[    0.038743] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies.
[    0.038744] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[    0.045620] NR_IRQS: 524544, nr_irqs: 256, preallocated irqs: 16
[    0.045817] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[    0.045951] kfence: initialized - using 2097152 bytes for 255 objects at 0x0000000036880424-0x000000000bf5c52b
[    0.045980] Spurious LAPIC timer interrupt on cpu 0
[    0.048416] Console: colour VGA+ 80x25
[    1.135333] printk: console [ttyS1] enabled
[    1.139520] ACPI: Core revision 20220331
[    1.143537] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484882848 ns
[    1.152690] BUG: kernel NULL pointer dereference, address: 0000000000000088
[    1.159634] #PF: supervisor read access in kernel mode
[    1.164757] #PF: error_code(0x0000) - not-present page
[    1.169882] PGD 0 P4D 0 
[    1.172407] Oops: 0000 [#1] PREEMPT SMP PTI
[    1.176578] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.0.11-300.fc37.x86_64 #1
[    1.183870] Hardware name: Dell Inc. PowerEdge R410/0N051F, BIOS 1.11.0 07/20/2012
[    1.191420] RIP: 0010:tick_periodic+0x23/0x80
[    1.195765] Code: 5b e9 71 17 e5 00 90 0f 1f 44 00 00 39 3d 59 94 16 02 74 30 48 c7 c7 19 34 85 82 e8 07 c8 c0 00 31 ff 65 48 8b 05 b5 de e7 7e <f6> 80 88 00 00 00 03 40 0f 95 c7 e8 ed f3 fe ff bf 01 00 00 00 e9
[    1.214495] RSP: 0000:ffffc90000003eb8 EFLAGS: 00010046
[    1.219706] RAX: 0000000000000000 RBX: ffff8880bf052800 RCX: 0000000000000000
[    1.226822] RDX: 0000000000000103 RSI: ffffffff82853419 RDI: 0000000000000000
[    1.233939] RBP: 7fffffffffffffff R08: ffff8880bf400dd8 R09: ffffffff83146740
[    1.241056] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[    1.248172] R13: 0000000000000000 R14: ffff8880bf187e00 R15: ffffffff830060f0
[    1.255290] FS:  0000000000000000(0000) GS:ffff8880ce400000(0000) knlGS:0000000000000000
[    1.263360] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.269090] CR2: 0000000000000088 CR3: 00000000cd010000 CR4: 00000000000006b0
[    1.276207] Call Trace:
[    1.278645]  <IRQ>
[    1.280648]  tick_handle_periodic+0x1f/0x70
[    1.284821]  timer_interrupt+0x14/0x20
[    1.288561]  __handle_irq_event_percpu+0x46/0x190
[    1.293253]  handle_irq_event+0x34/0x70
[    1.297080]  handle_level_irq+0xa8/0x180
[    1.300993]  resend_irqs+0x5d/0x70
[    1.304386]  tasklet_action_common.constprop.0+0xab/0xe0
[    1.309686]  __do_softirq+0xfb/0x319
[    1.313254]  __irq_exit_rcu+0xd7/0x140
[    1.316993]  common_interrupt+0xb9/0xd0
[    1.320820]  </IRQ>
[    1.322910]  <TASK>
[    1.325000]  asm_common_interrupt+0x22/0x40
[    1.329175] RIP: 0010:__x86_return_thunk+0x0/0x8
[    1.333783] Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc f6 <c3> cc 0f ae e8 eb f9 cc 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    1.352513] RSP: 0000:ffffffff83003e68 EFLAGS: 00000206
[    1.357724] RAX: 0000000000000001 RBX: ffff8880bf187e00 RCX: 0000000000015a00
[    1.364842] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff8880bf187ea4
[    1.371960] RBP: ffff8880bf180680 R08: ffffffff83003e78 R09: 0000000000000080
[    1.379076] R10: 0000000000000246 R11: 0000000000000000 R12: 0000000000000000
[    1.386194] R13: ffff8880bf187f60 R14: ffff8880bf187ea4 R15: 0000000000000000
[    1.393315]  _raw_spin_unlock_irqrestore+0x19/0x40
[    1.398093]  __setup_irq+0x443/0x6d0
[    1.401659]  request_threaded_irq+0x109/0x170
[    1.406005]  hpet_time_init+0x2d/0x4b
[    1.409661]  x86_late_time_init+0x17/0x34
[    1.413658]  start_kernel+0x8cf/0x97f
[    1.417312]  secondary_startup_64_no_verify+0xe5/0xeb
[    1.422354]  </TASK>
[    1.424530] Modules linked in:
[    1.427574] CR2: 0000000000000088
[    1.430878] ---[ end trace 0000000000000000 ]---
[    1.435482] RIP: 0010:tick_periodic+0x23/0x80
[    1.439826] Code: 5b e9 71 17 e5 00 90 0f 1f 44 00 00 39 3d 59 94 16 02 74 30 48 c7 c7 19 34 85 82 e8 07 c8 c0 00 31 ff 65 48 8b 05 b5 de e7 7e <f6> 80 88 00 00 00 03 40 0f 95 c7 e8 ed f3 fe ff bf 01 00 00 00 e9
[    1.458556] RSP: 0000:ffffc90000003eb8 EFLAGS: 00010046
[    1.463767] RAX: 0000000000000000 RBX: ffff8880bf052800 RCX: 0000000000000000
[    1.470884] RDX: 0000000000000103 RSI: ffffffff82853419 RDI: 0000000000000000
[    1.478001] RBP: 7fffffffffffffff R08: ffff8880bf400dd8 R09: ffffffff83146740
[    1.485120] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[    1.492237] R13: 0000000000000000 R14: ffff8880bf187e00 R15: ffffffff830060f0
[    1.499354] FS:  0000000000000000(0000) GS:ffff8880ce400000(0000) knlGS:0000000000000000
[    1.507425] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.513156] CR2: 0000000000000088 CR3: 00000000cd010000 CR4: 00000000000006b0
[    1.520274] Kernel panic - not syncing: Fatal exception in interrupt
[    1.526614] Rebooting in 10 seconds..


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