[ 77.598483] SysRq : Trigger a crash [ 77.601771] BUG: unable to handle kernel NULL pointer dereference at (null) [ 77.605252] IP: [] sysrq_handle_crash+0x16/0x20 [ 77.605252] PGD 1ebba067 PUD 1ebb9067 PMD 0 [ 77.605252] Oops: 0002 [#1] SMP [ 77.605252] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ib_ ser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi joydev hid_ge eric rfcomm bnep bluetooth 6lowpan_iphc serio_raw i2c_piix4 hyperv_keyboard hid_hyperv hid hv_balloon mac_hid parport_p ppdev lp parport btrfs xor raid6_pq hv_netvsc hv_storvsc hv_utils psmouse hv_vmbus floppy pata_acpi [ 77.605252] CPU: 0 PID: 2538 Comm: bash Not tainted 3.16.0-9-generic #14-Ubuntu [ 77.605252] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 05/23/2012 [ 77.605252] task: ffff88001ea5db20 ti: ffff88001eb54000 task.ti: ffff88001eb54000 [ 77.605252] RIP: 0010:[] [] sysrq_handle_crash+0x16/0x20 [ 77.605252] RSP: 0018:ffff88001eb57e90 EFLAGS: 00010286 [ 77.605252] RAX: 000000000000000f RBX: 0000000000000063 RCX: 0000000000000000 [ 77.605252] RDX: ffff88003b410080 RSI: ffff88003b40e558 RDI: 0000000000000063 [ 77.605252] RBP: ffff88001eb57e90 R08: 000000000000025a R09: 0000000000000096 [ 77.605252] R10: ffff880033fcfa94 R11: 000000000000025a R12: 0000000000000004 [ 77.605252] R13: 0000000000000000 R14: ffffffff81cb0220 R15: 0000000000000000 [ 77.605252] FS: 00007f9f50f6d740(0000) GS:ffff88003b400000(0000) knlGS:0000000000000000 [ 77.605252] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 77.605252] CR2: 0000000000000000 CR3: 000000001ebb7000 CR4: 00000000000006f0 [ 77.605252] Stack: [ 77.605252] ffff88001eb57ec0 ffffffff81485d96 0000000000000002 fffffffffffffffb [ 77.605252] 0000000001d71408 0000000000000002 ffff88001eb57ed8 ffffffff8148623f [ 77.605252] ffff880033fcfa40 ffff88001eb57ef8 ffffffff81244e58 ffff88001ebbfd00 [ 77.605252] Call Trace: [ 77.605252] [] __handle_sysrq+0x106/0x170 [ 77.605252] [] write_sysrq_trigger+0x2f/0x40 [ 77.605252] [] proc_reg_write+0x48/0x70 [ 77.605252] [] vfs_write+0xb7/0x1f0 [ 77.605252] [] SyS_write+0x46/0xb0 [ 77.605252] [] system_call_fastpath+0x1a/0x1f [ 77.605252] Code: 45 39 74 24 34 75 da 4c 89 e7 e8 16 f7 ff ff eb d0 0f 1f 40 00 66 66 66 66 90 55 c7 05 94 57 a4 00 01 00 00 00 48 89 e5 0f ae f8 04 25 00 00 00 00 01 5d c3 66 66 66 66 90 55 31 c0 c7 05 5e [ 77.605252] RIP [] sysrq_handle_crash+0x16/0x20 [ 77.605252] RSP [ 77.605252] CR2: 0000000000000000 [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 3.16.0-9-generic (buildd@brownie) (gcc version 4.9.1 (Ubuntu 4.9.1-6ubuntu1) ) #14-Ubuntu MP Fri Aug 15 15:03:57 UTC 2014 (Ubuntu 3.16.0-9.14-generic 3.16.1) [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.16.0-9-generic root=/dev/mapper/ubuntu--vg-root ro console=tty0 cons le=ttyS1 irqpoll maxcpus=1 nousb memmap=exactmap memmap=635K@4K memmap=130420K@65536K elfcorehdr=195956K memmap=60K#104 512K memmap=4K#1048572K [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000100-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000003ffeffff] usable [ 0.000000] BIOS-e820: [mem 0x000000003fff0000-0x000000003fffefff] ACPI data [ 0.000000] BIOS-e820: [mem 0x000000003ffff000-0x000000003fffffff] ACPI NVS [ 0.000000] e820: last_pfn = 0x3fff0 max_arch_pfn = 0x400000000 [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] e820: user-defined physical RAM map: [ 0.000000] user: [mem 0x0000000000001000-0x000000000009fbff] usable [ 0.000000] user: [mem 0x0000000004000000-0x000000000bf5cfff] usable [ 0.000000] user: [mem 0x000000003fff0000-0x000000003fffffff] ACPI data [ 0.000000] SMBIOS 2.3 present. [ 0.000000] Hypervisor detected: Microsoft HyperV [ 0.000000] HyperV: features 0xe7f, hints 0x2c [ 0.000000] HyperV: LAPIC Timer Frequency: 0xc3500 [ 0.000000] AGP: No AGP bridge found [ 0.000000] e820: last_pfn = 0xbf5d max_arch_pfn = 0x400000000 [ 0.000000] x86 PAT enabled: cpu 0, old 0x7010600070106, new 0x7010600070106 [ 0.000000] found SMP MP-table at [mem 0x000ff780-0x000ff78f] mapped at [ffff8800000ff780] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] [ 0.000000] init_memory_mapping: [mem 0x0bc00000-0x0bdfffff] [ 0.000000] init_memory_mapping: [mem 0x08000000-0x0bbfffff] [ 0.000000] init_memory_mapping: [mem 0x04000000-0x07ffffff] [ 0.000000] init_memory_mapping: [mem 0x0be00000-0x0bf5cfff] [ 0.000000] cma: CMA: reserved 64 MiB at 04800000 [ 0.000000] RAMDISK: [mem 0x08b6f000-0x09ffffff] [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F56F0 000014 (v00 ACPIAM) [ 0.000000] ACPI: RSDT 0x000000003FFF0000 000040 (v01 VRTUAL MICROSFT 05001223 MSFT 00000097) [ 0.000000] ACPI: FACP 0x000000003FFF0200 000081 (v02 VRTUAL MICROSFT 05001223 MSFT 00000097) [ 0.000000] ACPI: DSDT 0x000000003FFF1724 002E78 (v01 MSFTVM MSFTVM02 00000002 INTL 02002026) [ 0.000000] ACPI: FACS 0x000000003FFFF000 000040 [ 0.000000] ACPI: WAET 0x000000003FFF1480 000028 (v01 VRTUAL MICROSFT 05001223 MSFT 00000097) [ 0.000000] ACPI: SLIC 0x000000003FFF14C0 000176 (v01 VRTUAL MICROSFT 05001223 MSFT 00000097) [ 0.000000] ACPI: OEM0 0x000000003FFF16C0 000064 (v01 VRTUAL MICROSFT 05001223 MSFT 00000097) [ 0.000000] ACPI: SRAT 0x000000003FFF0600 0000E0 (v02 VRTUAL MICROSFT 00000001 MSFT 00000001) [ 0.000000] ACPI: APIC 0x000000003FFF0300 00024C (v01 VRTUAL MICROSFT 05001223 MSFT 00000097) [ 0.000000] ACPI: OEMB 0x000000003FFFF040 000064 (v01 VRTUAL MICROSFT 05001223 MSFT 00000097) [ 0.000000] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.000000] SRAT: Node 0 PXM 0 [mem 0x00000000-0x3fffffff] [ 0.000000] SRAT: Node 0 PXM 0 [mem 0x40200000-0xf7ffffff] hotplug [ 0.000000] SRAT: Node 0 PXM 0 [mem 0x100000000-0xfdfffffff] hotplug [ 0.000000] SRAT: Node 0 PXM 0 [mem 0x1000000000-0x100281fffff] hotplug [ 0.000000] Initmem setup node 0 [mem 0x00000000-0x0bf5cfff] [ 0.000000] NODE_DATA [mem 0x0bf58000-0x0bf5cfff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x00001000-0x00ffffff] [ 0.000000] DMA32 [mem 0x01000000-0xffffffff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x00001000-0x0009efff] [ 0.000000] node 0: [mem 0x04000000-0x0bf5cfff] [ 0.000000] ACPI: PM-Timer IO Port: 0x408 [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x02] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x04] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x05] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x06] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x08] lapic_id[0x07] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x09] lapic_id[0x08] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x09] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x0a] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x0b] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x0c] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x0d] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x0e] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x10] lapic_id[0x0f] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x11] lapic_id[0x10] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x12] lapic_id[0x11] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x13] lapic_id[0x12] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x14] lapic_id[0x13] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x15] lapic_id[0x14] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x16] lapic_id[0x15] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x17] lapic_id[0x16] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x18] lapic_id[0x17] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x19] lapic_id[0x18] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x1a] lapic_id[0x19] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x1b] lapic_id[0x1a] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x1c] lapic_id[0x1b] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x1d] lapic_id[0x1c] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x1e] lapic_id[0x1d] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x1f] lapic_id[0x1e] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x20] lapic_id[0x1f] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x21] lapic_id[0x20] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x22] lapic_id[0x21] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x23] lapic_id[0x22] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x24] lapic_id[0x23] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x25] lapic_id[0x24] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x26] lapic_id[0x25] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x27] lapic_id[0x26] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x28] lapic_id[0x27] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x29] lapic_id[0x28] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x2a] lapic_id[0x29] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x2b] lapic_id[0x2a] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x2c] lapic_id[0x2b] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x2d] lapic_id[0x2c] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x2e] lapic_id[0x2d] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x2f] lapic_id[0x2e] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x30] lapic_id[0x2f] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x31] lapic_id[0x30] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x32] lapic_id[0x31] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x33] lapic_id[0x32] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x34] lapic_id[0x33] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x35] lapic_id[0x34] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x36] lapic_id[0x35] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x37] lapic_id[0x36] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x38] lapic_id[0x37] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x39] lapic_id[0x38] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x3a] lapic_id[0x39] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x3b] lapic_id[0x3a] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x3c] lapic_id[0x3b] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x3d] lapic_id[0x3c] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x3e] lapic_id[0x3d] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x3f] lapic_id[0x3e] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x40] lapic_id[0x3f] disabled) [ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 64 CPUs, 63 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x03ffffff] [ 0.000000] e820: [mem 0x40000000-0xffffffff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on bare hardware [ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:64 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 29 pages/cpu @ffff880004000000 s87360 r8192 d23232 u131072 [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 32229 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-3.16.0-9-generic root=/dev/mapper/ubuntu--vg-root ro console=tt 0 console=ttyS1 irqpoll maxcpus=1 nousb memmap=exactmap memmap=635K@4K memmap=130420K@65536K elfcorehdr=195956K memmap= 0K#1048512K memmap=4K#1048572K [ 0.000000] Misrouted IRQ fixup and polling support enabled [ 0.000000] This may significantly impact system performance [ 0.000000] PID hash table entries: 512 (order: 0, 4096 bytes) [ 0.000000] AGP: Checking aperture... [ 0.000000] AGP: No AGP bridge found [ 0.000000] Memory: 16392K/131052K available (7695K kernel code, 1196K rwdata, 3592K rodata, 1356K init, 1308K bss, 14660K reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=64, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU dyntick-idle grace-period acceleration is enabled. [ 0.000000] RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=64. [ 0.000000] Offload RCU callbacks from all CPUs [ 0.000000] Offload RCU callbacks from CPUs: 0-63. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=64 [ 0.000000] NR_IRQS:16640 nr_irqs:1192 16 [ 0.000000] do_IRQ: 0.243 No irq handler for vector (irq -1) [ 0.000000] Spurious LAPIC timer interrupt on cpu 0 [ 0.000000] Console: colour dummy device 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] console [ttyS1] enabled [ 0.000000] allocated 1048576 bytes of page_cgroup [ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups [ 0.000000] tsc: Fast TSC calibration failed [ 0.000000] tsc: Unable to calibrate against PIT [ 0.000000] tsc: using PMTIMER reference calibration [ 0.000000] tsc: Detected 2094.687 MHz processor [ 0.000000] tsc: Marking TSC unstable due to TSCs unsynchronized [ 0.032000] Calibrating delay loop (skipped), value calculated using timer frequency.. 4189.37 BogoMIPS (lpj=8378748 [ 0.033928] pid_max: default: 65536 minimum: 512 [ 0.036145] ACPI: Core revision 20140424 [ 0.045691] ACPI: All ACPI Tables successfully acquired [ 0.050705] Security Framework initialized [ 0.052199] AppArmor: AppArmor initialized [ 0.056097] Yama: becoming mindful. [ 0.060279] Dentry cache hash table entries: 16384 (order: 5, 131072 bytes) [ 0.064320] Inode-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.068229] Mount-cache hash table entries: 512 (order: 0, 4096 bytes) [ 0.070847] Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes) [ 0.072839] Initializing cgroup subsys memory [ 0.076159] Initializing cgroup subsys devices [ 0.078251] Initializing cgroup subsys freezer [ 0.080121] Initializing cgroup subsys net_cls [ 0.084176] Initializing cgroup subsys blkio [ 0.088116] Initializing cgroup subsys perf_event [ 0.092117] Initializing cgroup subsys net_prio [ 0.094235] Initializing cgroup subsys hugetlb [ 0.096713] mce: CPU supports 1 MCE banks [ 0.100140] process: using AMD E400 aware idle routine [ 0.102639] Last level iTLB entries: 4KB 512, 2MB 16, 4MB 8 [ 0.102639] Last level dTLB entries: 4KB 512, 2MB 128, 4MB 64, 1GB 0 [ 0.102639] tlb_flushall_shift: 6 [ 0.181966] ftrace: allocating 29145 entries in 114 pages [ 0.216307] Switched APIC routing to physical flat. [ 0.260000] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.260031] smpboot: CPU0: AMD Opteron(tm) Processor 4171 HE (fam: 10, model: 08, stepping: 01) [ 0.267188] Performance Events: Broken PMU hardware detected, using software events only. [ 0.268012] Failed to access perfctr msr (MSR c0010004 is 0) [ 0.274342] ------------[ cut here ]------------ [ 0.276000] kernel BUG at /build/buildd/linux-3.16.0/kernel/rcu/tree_plugin.h:2332! [ 0.276000] invalid opcode: 0000 [#1] SMP [ 0.276000] Modules linked in: [ 0.276000] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.16.0-9-generic #14-Ubuntu [ 0.276000] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 05/23/2012 [ 0.276000] task: ffff88000b120000 ti: ffff88000b128000 task.ti: ffff88000b128000 [ 0.276000] RIP: 0010:[] [] rcu_spawn_gp_kthread+0x113/0x120 [ 0.276000] RSP: 0000:ffff88000b12be78 EFLAGS: 00010206 [ 0.276000] RAX: fffffffffffffff5 RBX: ffff88000470e600 RCX: 00000000000001b7 [ 0.276000] RDX: 00000000000001b6 RSI: ffff8800040175e0 RDI: ffff88000bc03b00 [ 0.276000] RBP: ffff88000b12be98 R08: 00000000000175e0 R09: ffffea00002c5340 [ 0.276000] R10: ffffffff8a0948c2 R11: 0000000000000010 R12: 0000000000000038 [ 0.276000] R13: ffffffff8ac575c0 R14: fffffffffffffff5 R15: 0000000000000000 [ 0.276000] FS: 0000000000000000(0000) GS:ffff880004000000(0000) knlGS:0000000000000000 [ 0.276000] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 0.276000] CR2: ffff88000afd0000 CR3: 000000000ac13000 CR4: 00000000000006f0 [ 0.276000] Stack: [ 0.276000] ffffffff8ac1a040 ffff88000bc04aa0 0000000000000000 ffffffff8ad651d9 [ 0.276000] ffff88000b12bf10 ffffffff8a002148 0000000000000000 0000000000000092 [ 0.276000] 0000000000000000 000000000000b040 000000000000b060 0000000000000001 [ 0.276000] Call Trace: [ 0.276000] [] ? rcu_init_one+0x433/0x433 [ 0.276000] [] do_one_initcall+0xd8/0x210 [ 0.276000] [] kernel_init_freeable+0xea/0x218 [ 0.276000] [] ? rest_init+0x80/0x80 [ 0.276000] [] kernel_init+0xe/0xf0 [ 0.276000] [] ret_from_fork+0x7c/0xb0 [ 0.276000] [] ? rest_init+0x80/0x80 [ 0.276000] Code: 49 89 c6 77 26 48 89 c7 e8 c2 00 34 ff 4c 89 b3 88 01 00 00 eb 85 4d 8b ad e0 12 00 00 49 81 ed e0 12 00 00 e9 08 ff ff ff 0f 0b <0f> 0b 5b 31 c0 41 5c 41 5d 41 5e 5d c3 55 48 c7 c7 28 ce a7 8a [ 0.276000] RIP [] rcu_spawn_gp_kthread+0x113/0x120 [ 0.276000] RSP [ 0.276084] ---[ end trace ba03e45170efffa0 ]--- [ 0.278083] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 0.278083] [ 0.280000] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 0.280000]