kdump kernel panics on Bionic

The kdump/crashdump kernel is panicing during boot on Bionic.

1) Install the daily Bionic server or desktop ISO
2) apt install linux-crashdump, say yes to kdump being enabled
3) Reboot so as to boot with the correct kernel parameter
4) Run:
    root@bionic-server:~# echo 1 > /proc/sys/kernel/sysrq
    root@bionic-server:~# echo c > /proc/sysrq-trigger
5) Observe that the crashdump kernel panics before booting with an out-of-memory error. Log below.

If I replace the bionic image with the artful cloud image, and repeat steps 2-4, the crashdump kernel boots and successfully stores the vmcore.

The full log:

[ 54.424512] sysrq: SysRq : Trigger a crash
[ 54.427899] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[ 54.433915] IP: sysrq_handle_crash+0x16/0x20
[ 54.437157] PGD 0 P4D 0
[ 54.439292] Oops: 0002 [#1] SMP PTI
[ 54.444571] Modules linked in: snd_hda_codec_generic crct10dif_pclmul crc32_pclmul snd_hda_intel ghash_clmulni_intel snd_hda_codec snd_hda_core snd_hwdep input_leds joydev snd_pcm serio_raw snd_timer snd soundcore qemu_fw_cfg mac_hid sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid qxl aesni_intel ttm drm_kms_helper aes_x86_64 crypto_simd cryptd glue_helper syscopyarea sysfillrect sysimgblt fb_sys_fops psmouse virtio_blk virtio_net drm i2c_piix4 pata_acpi floppy
[ 54.468925] CPU: 0 PID: 1075 Comm: bash Not tainted 4.15.0-15-generic #16-Ubuntu
[ 54.470377] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[ 54.472016] RIP: 0010:sysrq_handle_crash+0x16/0x20
[ 54.472891] RSP: 0018:ffffa3a000643e30 EFLAGS: 00010286
[ 54.473826] RAX: ffffffff917e0950 RBX: ffffffff92787200 RCX: 0000000000000000
[ 54.475092] RDX: 0000000000000000 RSI: ffff90dfbfc16498 RDI: 0000000000000063
[ 54.476182] RBP: ffffa3a000643e30 R08: 0000000000000000 R09: 000000000000022b
[ 54.477272] R10: 0000000000000001 R11: ffffffff92b5280d R12: 0000000000000004
[ 54.478361] R13: 0000000000000063 R14: 0000000000000002 R15: ffff90dfbab0ef00
[ 54.479456] FS: 00007ff6248af740(0000) GS:ffff90dfbfc00000(0000) knlGS:0000000000000000
[ 54.480602] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 54.481379] CR2: 0000000000000000 CR3: 000000007bcb2006 CR4: 00000000003606f0
[ 54.482341] Call Trace:
[ 54.482690] __handle_sysrq+0x9f/0x170
[ 54.483207] write_sysrq_trigger+0x34/0x40
[ 54.483775] proc_reg_write+0x45/0x70
[ 54.484281] __vfs_write+0x1b/0x40
[ 54.484751] vfs_write+0xb1/0x1a0
[ 54.485208] SyS_write+0x55/0xc0
[ 54.485669] do_syscall_64+0x73/0x130
[ 54.486156] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[ 54.486784] RIP: 0033:0x7ff623f84154
[ 54.487328] RSP: 002b:00007ffe5f399678 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 54.488272] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff623f84154
[ 54.489179] RDX: 0000000000000002 RSI: 000055a5a49151c0 RDI: 0000000000000001
[ 54.490313] RBP: 000055a5a49151c0 R08: 000000000000000a R09: 0000000000000001
[ 54.491179] R10: 000000000000000a R11: 0000000000000246 R12: 00007ff624260760
[ 54.492311] R13: 0000000000000002 R14: 00007ff62425c2a0 R15: 00007ff62425b760
[ 54.493124] Code: e7 e8 9f fb ff ff e9 c0 fe ff ff 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 c7 05 a8 a7 36 01 01 00 00 00 48 89 e5 0f ae f8 <c6> 04 25 00 00 00 00 01 5d c3 0f 1f 44 00 00 55 c7 05 40 1f e8
[ 54.496461] RIP: sysrq_handle_crash+0x16/0x20 RSP: ffffa3a000643e30
[ 54.497393] CR2: 0000000000000000
[ 0.000000] Linux version 4.15.0-15-generic (buildd@lgw01-amd64-050) (gcc version 7.3.0 (Ubuntu 7.3.0-14ubuntu1)) #16-Ubuntu SMP Wed Apr 4 13:58:14 UTC 2018 (Ubuntu 4.15.0-15.16-generic 4.15.15)
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-15-generic root=UUID=3e45b7ec-412a-11e8-a844-5254003896a5 ro maybe-ubiquity console=ttyS0 nr_cpus=1 systemd.unit=kdump-tools.service irqpoll nousb ata_piix.prefer_ms_hyperv=0 elfcorehdr=802164K
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Centaur CentaurHauls
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
[ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000001000-0x000000000009fbff] usable
[ 0.000000] BIOS-e820: [mem 0x0000000029000000-0x0000000030f5cfff] usable
[ 0.000000] BIOS-e820: [mem 0x0000000030fffc00-0x0000000030ffffff] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] random: fast init done
[ 0.000000] SMBIOS 2.8 present.
[ 0.000000] DMI: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[ 0.000000] Hypervisor detected: KVM
[ 0.000000] e820: last_pfn = 0x31000 max_arch_pfn = 0x400000000
[ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
[ 0.000000] x2apic: enabled by BIOS, switching to x2apic ops
[ 0.000000] found SMP MP-table at [mem 0x000f6a50-0x000f6a5f] mapped at [ (ptrval)]
[ 0.000000] Scanning 1 areas for low memory corruption
[ 0.000000] RAMDISK: [mem 0x2d66e000-0x2effffff]
[ 0.000000] ACPI: Early table checksum verification disabled
[ 0.000000] ACPI: RSDP 0x00000000000F6870 000014 (v00 BOCHS )
[ 0.000000] ACPI: RSDT 0x000000007FFE1523 00002C (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACP 0x000000007FFE13B7 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001)
[ 0.000000] ACPI: DSDT 0x000000007FFE0040 001377 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACS 0x000000007FFE0000 000040
[ 0.000000] ACPI: APIC 0x000000007FFE14AB 000078 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001)
[ 0.000000] Setting APIC routing to cluster x2apic.
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x0000000030ffffff]
[ 0.000000] NODE_DATA(0) allocated [mem 0x30f32000-0x30f5cfff]
[ 0.000000] kvm-clock: cpu 0, msr 0:30eb1001, primary cpu clock
[ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
[ 0.000000] kvm-clock: using sched offset of 574593506761 cycles
[ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.000000] DMA32 [mem 0x0000000001000000-0x0000000030ffffff]
[ 0.000000] Normal empty
[ 0.000000] Device empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.000000] node 0: [mem 0x0000000029000000-0x0000000030f5cfff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x0000000030f5cfff]
[ 0.000000] Reserved but unavailable: 98 pages
[ 0.000000] ACPI: PM-Timer IO Port: 0x608
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 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 5 global_irq 5 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x28ffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x30f5d000-0x30ffffff]
[ 0.000000] e820: [mem 0x31000000-0xffffffff] available for PCI devices
[ 0.000000] Booting paravirtualized kernel on KVM
[ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
[ 0.000000] setup_percpu: NR_CPUS:8192 nr_cpumask_bits:1 nr_cpu_ids:1 nr_node_ids:1
[ 0.000000] percpu: Embedded 46 pages/cpu @ (ptrval) s151552 r8192 d28672 u2097152
[ 0.000000] KVM setup async PF for cpu 0
[ 0.000000] kvm-stealtime: cpu 0, msr 30c24040
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 32229
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-15-generic root=UUID=3e45b7ec-412a-11e8-a844-5254003896a5 ro maybe-ubiquity console=ttyS0 nr_cpus=1 systemd.unit=kdump-tools.service irqpoll nousb ata_piix.prefer_ms_hyperv=0 elfcorehdr=802164K
[ 0.000000] Misrouted IRQ fixup and polling support enabled
[ 0.000000] This may significantly impact system performance
[ 0.000000] Memory: 69764K/131052K available (12300K kernel code, 2472K rwdata, 4228K rodata, 2404K init, 2416K bss, 61288K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Kernel/User page tables isolation: enabled
[ 0.000000] ftrace: allocating 39206 entries in 154 pages
[ 0.004000] Hierarchical RCU implementation.
[ 0.004000] RCU restricting CPUs from NR_CPUS=8192 to nr_cpu_ids=1.
[ 0.004000] Tasks RCU enabled.
[ 0.004000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[ 0.004000] NR_IRQS: 524544, nr_irqs: 256, preallocated irqs: 16
[ 0.004000] Console: colour VGA+ 80x25
[ 0.004000] console [ttyS0] enabled
[ 0.004000] ACPI: Core revision 20170831
[ 0.004000] ACPI: 1 ACPI AML tables successfully acquired and loaded
[ 0.004000] APIC: Switch to symmetric I/O mode setup
[ 0.004000] Switched APIC routing to physical x2apic.
[ 0.004000] WARNING: CPU: 0 PID: 0 at /build/linux-18ur8S/linux-4.15.0/arch/x86/kernel/apic/apic.c:1516 setup_local_APIC+0x270/0x3a0
[ 0.004000] Modules linked in:
[ 0.004000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.15.0-15-generic #16-Ubuntu
[ 0.004000] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[ 0.004000] RIP: 0010:setup_local_APIC+0x270/0x3a0
[ 0.004000] RSP: 0000:ffffffffb5203e60 EFLAGS: 00010282
[ 0.004000] RAX: 00000141bdd96846 RBX: 0000000000000000 RCX: fffffffffffff252
[ 0.004000] RDX: 0000014100000000 RSI: 0000000000000000 RDI: 0000000000004000
[ 0.004000] RBP: ffffffffb5203ea0 R08: 6465686374697753 R09: 0000000000000083
[ 0.004000] R10: 0000000000000040 R11: 756f722043495041 R12: 0000000000000000
[ 0.004000] R13: 0000000000000001 R14: 00000000000000f0 R15: 00000000ffffffff
[ 0.004000] FS: 0000000000000000(0000) GS:ffff923930c00000(0000) knlGS:0000000000000000
[ 0.004000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 0.004000] CR2: 00000000ffffffff CR3: 000000002ca0a001 CR4: 00000000000606b0
[ 0.004000] Call Trace:
[ 0.004000] apic_bsp_setup+0x60/0x80
[ 0.004000] apic_intr_mode_init+0x191/0x194
[ 0.004000] x86_late_time_init+0x1b/0x22
[ 0.004000] start_kernel+0x43f/0x4fd
[ 0.004000] x86_64_start_reservations+0x24/0x26
[ 0.004000] x86_64_start_kernel+0x74/0x77
[ 0.004000] secondary_startup_64+0xa5/0xb0
[ 0.004000] Code: 0d 26 ff 5f 01 85 c9 74 29 0f 31 c1 e1 0a 48 03 4d c0 48 c1 e2 20 48 09 d0 48 29 c1 48 89 4d c8 48 83 7d c8 00 0f 8f 5a fe ff ff <0f> 0b e9 f9 fe ff ff 48 83 6d c8 01 eb e7 e8 cd 33 00 00 48 83
[ 0.004000] ---[ end trace 614376af8502f57a ]---
[ 0.004000] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.004000] tsc: Detected 2400.000 MHz processor
[ 0.004000] Spurious LAPIC timer interrupt on cpu 0
[ 0.004658] Calibrating delay loop (skipped) preset value.. 4800.00 BogoMIPS (lpj=9600000)
[ 0.005085] pid_max: default: 32768 minimum: 301
[ 0.005725] Security Framework initialized
[ 0.006273] Yama: becoming mindful.
[ 0.006751] AppArmor: AppArmor initialized
[ 0.008050] Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
[ 0.008952] Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.009873] Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
[ 0.010665] Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes)
[ 0.012215] CPU: Physical Processor ID: 0
[ 0.012757] mce: CPU supports 10 MCE banks
[ 0.013425] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.013991] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[ 0.014640] Spectre V2 : Mitigation: Full generic retpoline
[ 0.015218] Spectre V2 : Spectre v2 mitigation: Enabling Indirect Branch Prediction Barrier
[ 0.016005] Spectre V2 : Enabling Restricted Speculation for firmware calls
[ 0.023242] Freeing SMP alternatives memory: 36K
[ 0.024680] smpboot: CPU0: Intel Core Processor (Broadwell, no TSX, IBRS) (family: 0x6, model: 0x3d, stepping: 0x2)
[ 0.026015] Performance Events: unsupported p6 CPU model 61 no PMU driver, software events only.
[ 0.027128] Hierarchical SRCU implementation.
[ 0.028000] NMI watchdog: Perf event create on CPU 0 failed with -2
[ 0.028004] NMI watchdog: Perf NMI watchdog permanently disabled
[ 0.028783] smp: Bringing up secondary CPUs ...
[ 0.029346] smp: Brought up 1 node, 1 CPU
[ 0.029852] smpboot: Max logical packages: 1
[ 0.030388] smpboot: Total of 1 processors activated (4800.00 BogoMIPS)
[ 0.031327] devtmpfs: initialized
[ 0.031788] x86/mm: Memory block size: 128MB
[ 0.032090] evm: security.selinux
[ 0.032453] evm: security.SMACK64
[ 0.032868] evm: security.SMACK64EXEC
[ 0.033342] evm: security.SMACK64TRANSMUTE
[ 0.033906] evm: security.SMACK64MMAP
[ 0.034862] evm: security.apparmor
[ 0.035334] evm: security.ima
[ 0.035733] evm: security.capability
[ 0.036121] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.037323] futex hash table entries: 256 (order: 2, 16384 bytes)
[ 0.038130] pinctrl core: initialized pinctrl subsystem
[ 0.038934] RTC time: 4:10:32, date: 04/16/18
[ 0.039557] NET: Registered protocol family 16
[ 0.040074] audit: initializing netlink subsys (disabled)
[ 0.040829] cpuidle: using governor ladder
[ 0.041344] cpuidle: using governor menu
[ 0.041891] ACPI: bus type PCI registered
[ 0.042396] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[ 0.043311] PCI: Using configuration type 1 for base access
[ 0.044051] audit: type=2000 audit(1523851830.179:1): state=initialized audit_enabled=0 res=1
[ 0.046009] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[ 0.047039] ACPI: Added _OSI(Module Device)
[ 0.047599] ACPI: Added _OSI(Processor Device)
[ 0.048009] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.048465] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.049953] ACPI: Interpreter enabled
[ 0.050549] ACPI: (supports S0 S5)
[ 0.051002] ACPI: Using IOAPIC for interrupt routing
[ 0.051681] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.052150] ACPI: Enabled 2 GPEs in block 00 to 0F
[ 0.054647] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[ 0.055429] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI]
[ 0.056027] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
[ 0.056871] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.
[ 0.058508] acpiphp: Slot [3] registered
[ 0.059021] acpiphp: Slot [4] registered
[ 0.059551] acpiphp: Slot [6] registered
[ 0.060023] acpiphp: Slot [7] registered
[ 0.060534] acpiphp: Slot [8] registered
[ 0.061048] acpiphp: Slot [9] registered
[ 0.061559] acpiphp: Slot [10] registered
[ 0.062082] acpiphp: Slot [11] registered
[ 0.062602] acpiphp: Slot [12] registered
[ 0.063129] acpiphp: Slot [13] registered
[ 0.063703] acpiphp: Slot [14] registered
[ 0.064024] acpiphp: Slot [15] registered
[ 0.064553] acpiphp: Slot [16] registered
[ 0.065074] acpiphp: Slot [17] registered
[ 0.065594] acpiphp: Slot [18] registered
[ 0.066119] acpiphp: Slot [19] registered
[ 0.066704] acpiphp: Slot [20] registered
[ 0.067223] acpiphp: Slot [21] registered
[ 0.067746] acpiphp: Slot [22] registered
[ 0.068020] acpiphp: Slot [23] registered
[ 0.068544] acpiphp: Slot [24] registered
[ 0.069063] acpiphp: Slot [25] registered
[ 0.069582] acpiphp: Slot [26] registered
[ 0.070103] acpiphp: Slot [27] registered
[ 0.070637] acpiphp: Slot [28] registered
[ 0.071160] acpiphp: Slot [29] registered
[ 0.071688] acpiphp: Slot [30] registered
[ 0.072022] acpiphp: Slot [31] registered
[ 0.072396] PCI host bridge to bus 0000:00
[ 0.072861] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
[ 0.074286] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
[ 0.075193] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[ 0.076043] pci_bus 0000:00: root bus resource [mem 0x80000000-0xfebfffff window]
[ 0.077009] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 0.086359] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7]
[ 0.087267] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6]
[ 0.088007] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177]
[ 0.090235] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376]
[ 0.091976] pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI
[ 0.092014] pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB
[ 0.256681] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
[ 0.257568] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 10 *11)
[ 0.258355] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
[ 0.259208] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 *10 11)
[ 0.259958] ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
[ 0.260237] SCSI subsystem initialized
[ 0.260777] pci 0000:00:02.0: vgaarb: setting as boot VGA device
[ 0.261530] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[ 0.262607] pci 0000:00:02.0: vgaarb: bridge control possible
[ 0.263744] vgaarb: loaded
[ 0.264027] ACPI: bus type USB registered
[ 0.264544] usbcore: registered new interface driver usbfs
[ 0.265242] usbcore: registered new interface driver hub
[ 0.265943] usbcore: registered new device driver usb
[ 0.266625] EDAC MC: Ver: 3.0.0
[ 0.267306] PCI: Using ACPI for IRQ routing
[ 0.268122] NetLabel: Initializing
[ 0.268555] NetLabel: domain hash size = 128
[ 0.269200] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO
[ 0.269974] NetLabel: unlabeled traffic allowed by default
[ 0.271321] clocksource: Switched to clocksource kvm-clock
[ 0.275088] VFS: Disk quotas dquot_6.6.0
[ 0.275625] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.276609] AppArmor: AppArmor Filesystem Enabled
[ 0.277137] pnp: PnP ACPI init
[ 0.277788] pnp: PnP ACPI: found 5 devices
[ 0.283471] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[ 0.285081] NET: Registered protocol family 2
[ 0.286386] TCP established hash table entries: 1024 (order: 1, 8192 bytes)
[ 0.287341] TCP bind hash table entries: 1024 (order: 2, 16384 bytes)
[ 0.288219] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.289080] UDP hash table entries: 256 (order: 1, 8192 bytes)
[ 0.289840] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[ 0.290683] NET: Registered protocol family 1
[ 0.291262] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[ 0.292071] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[ 0.292915] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[ 0.310818] ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 10
[ 0.350037] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11
[ 0.388077] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
[ 0.424907] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10
[ 0.445878] Unpacking initramfs...
[ 0.648882] swapper/0 invoked oom-killer: gfp_mask=0x14200c2(GFP_HIGHUSER), nodemask=(null), order=0, oom_score_adj=0
[ 0.650134] swapper/0 cpuset=/ mems_allowed=0
[ 0.650685] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 4.15.0-15-generic #16-Ubuntu
[ 0.651622] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[ 0.652003] Call Trace:
[ 0.652003] dump_stack+0x63/0x8b
[ 0.652003] dump_header+0x71/0x285
[ 0.652003] out_of_memory+0x3d3/0x4f0
[ 0.652003] __alloc_pages_slowpath+0xa93/0xe60
[ 0.652003] __alloc_pages_nodemask+0x263/0x280
[ 0.652003] alloc_page_interleave+0x17/0x70
[ 0.652003] ? __next_node_in+0x31/0x50
[ 0.652003] alloc_pages_current+0xc8/0xe0
[ 0.652003] __page_cache_alloc+0x81/0xa0
[ 0.652003] pagecache_get_page+0x9b/0x2a0
[ 0.652003] grab_cache_page_write_begin+0x26/0x40
[ 0.652003] simple_write_begin+0x29/0x1b0
[ 0.652003] generic_perform_write+0xb3/0x1b0
[ 0.652003] __generic_file_write_iter+0x1aa/0x1d0
[ 0.652003] generic_file_write_iter+0xe9/0x1f0
[ 0.652003] new_sync_write+0xe7/0x140
[ 0.652003] __vfs_write+0x29/0x40
[ 0.652003] vfs_write+0xb1/0x1a0
[ 0.652003] ? md_run_setup+0x99/0x99
[ 0.652003] SyS_write+0x55/0xc0
[ 0.652003] ? do_name+0x127/0x287
[ 0.652003] xwrite+0x2e/0x61
[ 0.652003] do_copy+0x8f/0xbd
[ 0.652003] write_buffer+0x2b/0x3c
[ 0.652003] flush_buffer+0x39/0x91
[ 0.652003] __gunzip+0x277/0x31b
[ 0.652003] ? bunzip2+0x3be/0x3be
[ 0.652003] ? write_buffer+0x3c/0x3c
[ 0.652003] ? md_run_setup+0x99/0x99
[ 0.652003] ? __gunzip+0x31b/0x31b
[ 0.652003] gunzip+0x11/0x13
[ 0.652003] ? md_run_setup+0x99/0x99
[ 0.652003] unpack_to_rootfs+0x187/0x2c0
[ 0.652003] ? md_run_setup+0x99/0x99
[ 0.652003] ? unpack_to_rootfs+0x2c0/0x2c0
[ 0.652003] ? set_debug_rodata+0x17/0x17
[ 0.652003] populate_rootfs+0x61/0x10f
[ 0.652003] do_one_initcall+0x52/0x19f
[ 0.652003] kernel_init_freeable+0x1af/0x251
[ 0.652003] ? rest_init+0xb0/0xb0
[ 0.652003] kernel_init+0xe/0x100
[ 0.652003] ret_from_fork+0x35/0x40
[ 0.670203] Mem-Info:
[ 0.670462] active_anon:0 inactive_anon:0 isolated_anon:0
[ 0.670462] active_file:0 inactive_file:0 isolated_file:0
[ 0.670462] unevictable:13731 dirty:0 writeback:0 unstable:0
[ 0.670462] slab_reclaimable:2163 slab_unreclaimable:667
[ 0.670462] mapped:0 shmem:0 pagetables:0 bounce:0
[ 0.670462] free:328 free_pcp:12 free_cma:0
[ 0.675622] Node 0 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:54924kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
[ 0.679635] Node 0 DMA free:272kB min:8kB low:8kB high:8kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:264kB writepending:0kB present:632kB managed:548kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[ 0.683356] lowmem_reserve[]: 0 67 67 67 67
[ 0.683943] Node 0 DMA32 free:1040kB min:1044kB low:1304kB high:1564kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:54660kB writepending:0kB present:130420kB managed:69252kB mlocked:0kB kernel_stack:496kB pagetables:0kB bounce:0kB free_pcp:48kB local_pcp:48kB free_cma:0kB
[ 0.687508] lowmem_reserve[]: 0 0 0 0 0
[ 0.688055] Node 0 DMA: 0*4kB 2*8kB (UE) 2*16kB (UE) 1*32kB (E) 1*64kB (E) 1*128kB (E) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 272kB
[ 0.689760] Node 0 DMA32: 2*4kB (UM) 1*8kB (M) 4*16kB (UME) 2*32kB (ME) 2*64kB (UE) 4*128kB (UME) 1*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1040kB
[ 0.691766] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[ 0.693595] 13732 total pagecache pages
[ 0.694107] 0 pages in swap cache
[ 0.694549] Swap cache stats: add 0, delete 0, find 0/0
[ 0.695231] Free swap = 0kB
[ 0.695598] Total swap = 0kB
[ 0.695963] 32763 pages RAM
[ 0.696326] 0 pages HighMem/MovableOnly
[ 0.696880] 15313 pages reserved
[ 0.697287] 0 pages cma reserved
[ 0.697692] 0 pages hwpoisoned
[ 0.698076] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name
[ 0.699241] Kernel panic - not syncing: Out of memory and no killable processes...
[ 0.699241]
[ 0.700322] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 4.15.0-15-generic #16-Ubuntu
[ 0.700322] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[ 0.700322] Call Trace:
[ 0.700322] dump_stack+0x63/0x8b
[ 0.700322] panic+0xe4/0x244
[ 0.700322] ? dump_header+0x18e/0x285
[ 0.700322] out_of_memory+0x3df/0x4f0
[ 0.700322] __alloc_pages_slowpath+0xa93/0xe60
[ 0.700322] __alloc_pages_nodemask+0x263/0x280
[ 0.700322] alloc_page_interleave+0x17/0x70
[ 0.700322] ? __next_node_in+0x31/0x50
[ 0.700322] alloc_pages_current+0xc8/0xe0
[ 0.700322] __page_cache_alloc+0x81/0xa0
[ 0.700322] pagecache_get_page+0x9b/0x2a0
[ 0.700322] grab_cache_page_write_begin+0x26/0x40
[ 0.700322] simple_write_begin+0x29/0x1b0
[ 0.700322] generic_perform_write+0xb3/0x1b0
[ 0.700322] __generic_file_write_iter+0x1aa/0x1d0
[ 0.700322] generic_file_write_iter+0xe9/0x1f0
[ 0.700322] new_sync_write+0xe7/0x140
[ 0.700322] __vfs_write+0x29/0x40
[ 0.700322] vfs_write+0xb1/0x1a0
[ 0.700322] ? md_run_setup+0x99/0x99
[ 0.700322] SyS_write+0x55/0xc0
[ 0.700322] ? do_name+0x127/0x287
[ 0.700322] xwrite+0x2e/0x61
[ 0.700322] do_copy+0x8f/0xbd
[ 0.700322] write_buffer+0x2b/0x3c
[ 0.700322] flush_buffer+0x39/0x91
[ 0.700322] __gunzip+0x277/0x31b
[ 0.700322] ? bunzip2+0x3be/0x3be
[ 0.700322] ? write_buffer+0x3c/0x3c
[ 0.700322] ? md_run_setup+0x99/0x99
[ 0.700322] ? __gunzip+0x31b/0x31b
[ 0.700322] gunzip+0x11/0x13
[ 0.700322] ? md_run_setup+0x99/0x99
[ 0.700322] unpack_to_rootfs+0x187/0x2c0
[ 0.700322] ? md_run_setup+0x99/0x99
[ 0.700322] ? unpack_to_rootfs+0x2c0/0x2c0
[ 0.700322] ? set_debug_rodata+0x17/0x17
[ 0.700322] populate_rootfs+0x61/0x10f
[ 0.700322] do_one_initcall+0x52/0x19f
[ 0.700322] kernel_init_freeable+0x1af/0x251
[ 0.700322] ? rest_init+0xb0/0xb0
[ 0.700322] kernel_init+0xe/0x100
[ 0.700322] ret_from_fork+0x35/0x40
[ 0.700322] ---[ end Kernel panic - not syncing: Out of memory and no killable processes...
[ 0.700322]

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-crashdump 4.15.0.15.16
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-15-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu4
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer'
Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer'
Date: Mon Apr 16 04:15:41 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb:
 Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
ProcEnviron:
 TERM=vt220
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
ProcFB: 0 qxldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-15-generic root=UUID=3e45b7ec-412a-11e8-a844-5254003896a5 ro maybe-ubiquity console=ttyS0 crashkernel=384M-:128M
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-15-generic N/A
 linux-backports-modules-4.15.0-15-generic N/A
 linux-firmware 1.173
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: 1.10.2-1ubuntu1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-artful
dmi.modalias: dmi:bvnSeaBIOS:bvr1.10.2-1ubuntu1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-artful:cvnQEMU:ct1:cvrpc-i440fx-artful:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-artful
dmi.sys.vendor: QEMU