ooting the kernel. [ 0.000000] Linux version 4.20.0-rc5-next-20181206+ (syzkaller@ci) (gcc version 8.0.1 20180413 (experimental) (GCC)) #160 SMP PREEMPT Thu Dec 6 08:25:38 UTC 2018 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 security=apparmor ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 spec_store_bypass_disable=prctl nopcid [ 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] BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] printk: bootconsole [earlyser0] enabled [ 0.000000] Malformed early option 'vsyscall' [ 0.000000] nopcid: PCID feature disabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] Hypervisor detected: KVM [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000003] kvm-clock: cpu 0, msr a749001, primary cpu clock [ 0.000004] kvm-clock: using sched offset of 5470620353 cycles [ 0.000761] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.003005] tsc: Detected 2300.000 MHz processor [ 0.006499] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.007391] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.008418] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.012796] found SMP MP-table at [mem 0x000f2c80-0x000f2c8f] mapped at [(____ptrval____)] [ 0.014036] check: Scanning 1 areas for low memory corruption [ 0.014887] Using GB pages for direct mapping [ 0.017374] ACPI: Early table checksum verification disabled [ 0.018279] ACPI: RSDP 0x00000000000F2A50 000014 (v00 Google) [ 0.019062] ACPI: RSDT 0x00000000BFFFDBA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.020277] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.021467] ACPI: DSDT 0x00000000BFFFDBE0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.022613] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.023253] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.023875] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.025024] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.026203] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.027345] ACPI: SRAT 0x00000000BFFFF3A0 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.028824] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.029454] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.030050] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.030895] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.031725] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.032600] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.034052] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.035486] NODE_DATA(0) allocated [mem 0x21fffa000-0x21fffdfff] [ 0.086577] Zone ranges: [ 0.087111] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.088019] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.088852] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.089750] Movable zone start for each node [ 0.090353] Early memory node ranges [ 0.090852] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.091708] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.092598] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.093529] Zeroed struct page in unavailable ranges: 101 pages [ 0.093537] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.595745] kasan: KernelAddressSanitizer initialized [ 0.597028] ACPI: PM-Timer IO Port: 0xb008 [ 0.597608] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.598516] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.599451] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.600350] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.601237] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.602161] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.603112] Using ACPI (MADT) for SMP configuration information [ 0.604070] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.604808] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.605699] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.606710] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.607606] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.608510] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.609423] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.610325] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.611192] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.611991] Booting paravirtualized kernel on KVM [ 0.612619] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.614090] random: get_random_bytes called from start_kernel+0x153/0xa30 with crng_init=0 [ 0.615224] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.617136] percpu: Embedded 56 pages/cpu @(____ptrval____) s189256 r8192 d31928 u1048576 [ 0.618392] Built 1 zonelists, mobility grouping on. Total pages: 1935238 [ 0.619321] Policy zone: Normal [ 0.619761] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 security=apparmor ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 spec_store_bypass_disable=prctl nopcid [ 1.397255] Memory: 6487012K/7863916K available (116760K kernel code, 13887K rwdata, 17604K rodata, 3120K init, 25480K bss, 1376904K reserved, 0K cma-reserved) [ 1.404570] Running RCU self tests [ 1.405131] rcu: Preemptible hierarchical RCU implementation. [ 1.405887] rcu: RCU lockdep checking is enabled. [ 1.406594] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 1.407480] rcu: RCU callback double-/use-after-free debug enabled. [ 1.408329] Tasks RCU enabled. [ 1.408748] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.409753] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.417606] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.420530] Console: colour VGA+ 80x25 [ 1.421217] printk: console [ttyS0] enabled [ 1.421217] printk: console [ttyS0] enabled [ 1.422426] printk: bootconsole [earlyser0] disabled [ 1.422426] printk: bootconsole [earlyser0] disabled [ 1.423805] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.424865] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.425439] ... MAX_LOCK_DEPTH: 48 [ 1.426062] ... MAX_LOCKDEP_KEYS: 8191 [ 1.426669] ... CLASSHASH_SIZE: 4096 [ 1.427293] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.427960] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.428638] ... CHAINHASH_SIZE: 32768 [ 1.429281] memory used by lock dependency info: 7263 kB [ 1.430101] per task-struct memory footprint: 1920 bytes [ 1.431217] ACPI: Core revision 20181031 [ 1.432540] APIC: Switch to symmetric I/O mode setup [ 1.433898] x2apic enabled [ 1.435513] Switched APIC routing to physical x2apic. [ 1.439547] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.440570] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.442073] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.452055] pid_max: default: 32768 minimum: 301 [ 1.453184] LSM: Security Framework initializing [ 1.453866] Yama: becoming mindful. [ 1.454850] AppArmor: AppArmor initialized [ 1.460803] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 1.464772] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 1.465938] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.467614] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.469843] *** VALIDATE proc *** [ 1.471029] *** VALIDATE cgroup1 *** [ 1.472056] *** VALIDATE cgroup2 *** [ 1.472827] mce: CPU supports 32 MCE banks [ 1.473597] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.474602] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.475578] Spectre V2 : Mitigation: Full generic retpoline [ 1.476417] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 1.477645] Speculative Store Bypass: Vulnerable [ 1.479281] Freeing SMP alternatives memory: 72K [ 1.492041] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.542145] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.562068] rcu: Hierarchical SRCU implementation. [ 1.582289] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.612072] smp: Bringing up secondary CPUs ... [ 1.693038] x86: Booting SMP configuration: [ 1.693796] .... node #0, CPUs: #1 [ 0.023102] kvm-clock: cpu 1, msr a749041, secondary cpu clock [ 1.696842] smp: Brought up 1 node, 2 CPUs [ 1.696842] smpboot: Max logical packages: 1 [ 1.696842] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.702798] devtmpfs: initialized [ 1.724608] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.724608] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.732978] kworker/u4:0 (24) used greatest stack depth: 22992 bytes left [ 1.733272] xor: automatically using best checksumming function avx [ 1.735417] RTC time: 8:30:29, date: 12/06/18 [ 1.735417] NET: Registered protocol family 16 [ 1.742104] audit: initializing netlink subsys (disabled) [ 1.742402] audit: type=2000 audit(1544085029.198:1): state=initialized audit_enabled=0 res=1 [ 1.748451] cpuidle: using governor menu [ 1.750461] ACPI: bus type PCI registered [ 1.752361] dca service started, version 1.12.1 [ 1.752361] PCI: Using configuration type 1 for base access [ 1.804498] kworker/u4:0 (111) used greatest stack depth: 22504 bytes left [ 1.897933] kworker/u4:2 (417) used greatest stack depth: 21544 bytes left [ 1.973735] kworker/u4:4 (618) used greatest stack depth: 21432 bytes left [ 2.122568] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 2.123269] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 2.124831] cryptd: max_cpu_qlen set to 1000 [ 2.292070] raid6: avx2x4 gen() 10717 MB/s [ 2.462096] raid6: avx2x4 xor() 6272 MB/s [ 2.632074] raid6: avx2x2 gen() 6690 MB/s [ 2.802100] raid6: avx2x2 xor() 3653 MB/s [ 2.967324] raid6: avx2x1 gen() 3766 MB/s [ 3.137327] raid6: avx2x1 xor() 1999 MB/s [ 3.307331] raid6: sse2x4 gen() 5267 MB/s [ 3.477323] raid6: sse2x4 xor() 3190 MB/s [ 3.652117] raid6: sse2x2 gen() 3398 MB/s [ 3.817316] raid6: sse2x2 xor() 1838 MB/s [ 3.987348] raid6: sse2x1 gen() 1858 MB/s [ 4.157346] raid6: sse2x1 xor() 959 MB/s [ 4.158087] raid6: using algorithm avx2x4 gen() 10717 MB/s [ 4.158957] raid6: .... xor() 6272 MB/s, rmw enabled [ 4.159665] raid6: using avx2x2 recovery algorithm [ 4.162845] ACPI: Added _OSI(Module Device) [ 4.162845] ACPI: Added _OSI(Processor Device) [ 4.162845] ACPI: Added _OSI(3.0 _SCP Extensions) [ 4.163466] ACPI: Added _OSI(Processor Aggregator Device) [ 4.164222] ACPI: Added _OSI(Linux-Dell-Video) [ 4.164889] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 4.212866] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 4.248315] ACPI: Interpreter enabled [ 4.249165] ACPI: (supports S0 S3 S4 S5) [ 4.252084] ACPI: Using IOAPIC for interrupt routing [ 4.253149] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 4.254510] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.332711] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 4.332711] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 4.333309] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 4.342215] PCI host bridge to bus 0000:00 [ 4.342215] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 4.342215] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 4.342215] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 4.343123] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 4.344207] pci_bus 0000:00: root bus resource [bus 00-ff] [ 4.376299] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.432235] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 4.433392] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 4.436366] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 4.439496] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 4.441671] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 4.456644] vgaarb: loaded [ 4.457555] SCSI subsystem initialized [ 4.457555] kworker/u4:2 (1117) used greatest stack depth: 20904 bytes left [ 4.462500] ACPI: bus type USB registered [ 4.464182] usbcore: registered new interface driver usbfs [ 4.465429] usbcore: registered new interface driver hub [ 4.465429] usbcore: registered new device driver usb [ 4.465429] media: Linux media interface: v0.10 [ 4.466318] videodev: Linux video capture interface: v2.00 [ 4.472495] pps_core: LinuxPPS API ver. 1 registered [ 4.474700] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.477881] PTP clock support registered [ 4.478620] EDAC MC: Ver: 3.0.0 [ 4.513648] Advanced Linux Sound Architecture Driver Initialized. [ 4.514314] PCI: Using ACPI for IRQ routing [ 4.518004] Bluetooth: Core ver 2.22 [ 4.518690] NET: Registered protocol family 31 [ 4.519492] Bluetooth: HCI device and connection manager initialized [ 4.522147] Bluetooth: HCI socket layer initialized [ 4.522864] Bluetooth: L2CAP socket layer initialized [ 4.523638] Bluetooth: SCO socket layer initialized [ 4.524403] NET: Registered protocol family 8 [ 4.525091] NET: Registered protocol family 20 [ 4.525974] NetLabel: Initializing [ 4.526615] NetLabel: domain hash size = 128 [ 4.527333] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 4.528363] NetLabel: unlabeled traffic allowed by default [ 4.530697] nfc: nfc_init: NFC Core ver 0.1 [ 4.531730] NET: Registered protocol family 39 [ 4.533938] clocksource: Switched to clocksource kvm-clock [ 4.966075] VFS: Disk quotas dquot_6.6.0 [ 4.966864] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.968466] FS-Cache: Loaded [ 4.968980] *** VALIDATE hugetlbfs *** [ 4.970361] CacheFiles: Loaded [ 4.972654] AppArmor: AppArmor Filesystem Enabled [ 4.973875] pnp: PnP ACPI init [ 4.986378] pnp: PnP ACPI: found 7 devices [ 5.035097] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 5.037362] NET: Registered protocol family 2 [ 5.040629] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes) [ 5.042503] TCP established hash table entries: 65536 (order: 7, 524288 bytes) [ 5.046701] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes) [ 5.051277] TCP: Hash tables configured (established 65536 bind 65536) [ 5.052848] UDP hash table entries: 4096 (order: 7, 655360 bytes) [ 5.054970] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) [ 5.056848] NET: Registered protocol family 1 [ 5.058860] RPC: Registered named UNIX socket transport module. [ 5.059870] RPC: Registered udp transport module. [ 5.060542] RPC: Registered tcp transport module. [ 5.061216] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 5.075059] NET: Registered protocol family 44 [ 5.075739] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 5.077366] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 5.078293] software IO TLB: mapped [mem 0xbbffd000-0xbfffd000] (64MB) [ 5.080806] RAPL PMU: API unit is 2^-32 Joules, 3 fixed counters, 10737418240 ms ovfl timer [ 5.081978] RAPL PMU: hw unit of domain pp0-core 2^-0 Joules [ 5.082900] RAPL PMU: hw unit of domain package 2^-0 Joules [ 5.083675] RAPL PMU: hw unit of domain dram 2^-16 Joules [ 5.084783] VPID CAP should not exist if not support 1-setting enable VPID VM-execution control [ 5.087522] kvm: already loaded the other module [ 5.088216] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 5.089868] Machine check injector initialized [ 5.094890] check: Scanning for low memory corruption every 60 seconds [ 5.204800] Initialise system trusted keyrings [ 5.206452] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 5.207690] zbud: loaded [ 5.211432] DLM installed [ 5.214983] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 5.216864] FS-Cache: Netfs 'nfs' registered for caching [ 5.228521] NFS: Registering the id_resolver key type [ 5.229334] Key type id_resolver registered [ 5.229972] Key type id_legacy registered [ 5.230584] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 5.231581] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 5.235145] ntfs: driver 2.1.32 [Flags: R/W]. [ 5.237123] fuse init (API version 7.28) [ 5.239553] JFS: nTxBlock = 8192, nTxLock = 65536 [ 5.248176] SGI XFS with ACLs, security attributes, realtime, no debug enabled [ 5.251427] 9p: Installing v9fs 9p2000 file system support [ 5.252524] FS-Cache: Netfs '9p' registered for caching [ 5.256396] gfs2: GFS2 installed [ 5.258385] FS-Cache: Netfs 'ceph' registered for caching [ 5.259214] ceph: loaded (mds proto 32) [ 5.358018] NET: Registered protocol family 38 [ 5.361325] async_tx: api initialized (async) [ 5.362034] Key type asymmetric registered [ 5.363901] Asymmetric key parser 'x509' registered [ 5.364747] Asymmetric key parser 'pkcs8' registered [ 5.365470] Key type pkcs7_test registered [ 5.366137] Asymmetric key parser 'tpm_parser' registered [ 5.367074] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 5.368840] io scheduler mq-deadline registered [ 5.369513] io scheduler kyber registered [ 5.370272] io scheduler bfq registered [ 5.377163] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 5.384929] ACPI: Power Button [PWRF] [ 5.386491] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 5.387787] ACPI: Sleep Button [SLPF] [ 5.394063] ioatdma: Intel(R) QuickData Technology Driver 4.00 [ 5.406000] PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 5.406882] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 5.418616] PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 5.419472] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 5.704999] kworker/u4:4 (2306) used greatest stack depth: 20840 bytes left [ 5.706391] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 5.729864] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 5.757552] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 5.782351] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 5.807173] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 5.814688] Non-volatile memory driver v1.3 [ 5.816512] Linux agpgart interface v0.103 [ 5.824670] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 5.826238] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 5.827680] [drm] Driver supports precise vblank timestamp query. [ 5.831931] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 5.833801] usbcore: registered new interface driver udl [ 5.850786] WARNING: CPU: 1 PID: 1 at block/blk-throttle.c:2128 blk_throtl_bio+0x19f4/0x29f0 [ 5.852062] Kernel panic - not syncing: panic_on_warn set ... [ 5.852062] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.20.0-rc5-next-20181206+ #160 [ 5.852062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 5.852062] Call Trace: [ 5.852062] dump_stack+0x244/0x39d [ 5.852062] ? dump_stack_print_info.cold.1+0x20/0x20 [ 5.852062] panic+0x2ad/0x632 [ 5.852062] ? add_taint.cold.5+0x16/0x16 [ 5.852062] ? __warn.cold.8+0x5/0x4f [ 5.852062] ? __warn+0xe8/0x1d0 [ 5.852062] ? blk_throtl_bio+0x19f4/0x29f0 [ 5.852062] __warn.cold.8+0x20/0x4f [ 5.852062] ? rcu_softirq_qs+0x20/0x20 [ 5.852062] ? blk_throtl_bio+0x19f4/0x29f0 [ 5.852062] report_bug+0x254/0x2d0 [ 5.852062] do_error_trap+0x11b/0x200 [ 5.852062] do_invalid_op+0x36/0x40 [ 5.852062] ? blk_throtl_bio+0x19f4/0x29f0 [ 5.852062] invalid_op+0x14/0x20 [ 5.852062] RIP: 0010:blk_throtl_bio+0x19f4/0x29f0 [ 5.852062] Code: 8b 1d f0 68 d7 05 48 89 f8 48 c1 e8 03 42 80 3c 38 00 0f 85 0e 0e 00 00 49 89 9c 24 00 01 00 00 e9 46 f6 ff ff e8 6c cc f6 fd <0f> 0b e9 78 e7 ff ff 31 db e9 ed eb ff ff e8 59 cc f6 fd 0f 0b e8 [ 5.852062] RSP: 0000:ffff8881d9a5e228 EFLAGS: 00010293 [ 5.852062] RAX: ffff8881d9a50040 RBX: ffff8881d1fec900 RCX: ffffffff83890eaa [ 5.852062] RDX: 0000000000000000 RSI: ffffffff83892734 RDI: 0000000000000005 [ 5.852062] RBP: ffff8881d9a5e438 R08: ffff8881d9a50040 R09: ffffed103b5a5b5f [ 5.852062] R10: ffffed103b5a5b5f R11: ffff8881dad2dafb R12: ffff8881d1836c88 [ 5.852062] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881d1fbc430 [ 5.852062] ? blk_throtl_bio+0x16a/0x29f0 [ 5.852062] ? blk_throtl_bio+0x19f4/0x29f0 [ 5.852062] ? blk_throtl_bio+0x19f4/0x29f0 [ 5.852062] ? do_raw_spin_unlock+0xa7/0x330 [ 5.852062] ? do_raw_spin_trylock+0x270/0x270 [ 5.852062] ? _raw_spin_unlock+0x2c/0x50 [ 5.852062] ? create_task_io_context+0x40c/0x580 [ 5.852062] ? tg_drain_bios+0x610/0x610 [ 5.852062] ? rcu_read_unlock_special+0x370/0x370 [ 5.852062] ? perf_trace_sched_process_exec+0x860/0x860 [ 5.852062] ? blk_queue_enter+0xe1a/0x11f0 [ 5.852062] ? mark_held_locks+0x130/0x130 [ 5.852062] generic_make_request_checks+0x84c/0x2150 [ 5.852062] ? unwind_next_frame+0x3e/0x50 [ 5.852062] ? trace_event_raw_event_block_rq_requeue+0x6f0/0x6f0 [ 5.852062] ? __lock_acquire+0x62f/0x4c20 [ 5.852062] ? __lock_acquire+0x62f/0x4c20 [ 5.852062] ? mark_held_locks+0x130/0x130 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? mark_held_locks+0x130/0x130 [ 5.852062] ? kernel_init+0x11/0x1ae [ 5.852062] ? ret_from_fork+0x3a/0x50 [ 5.852062] ? find_held_lock+0x36/0x1c0 [ 5.852062] ? __bio_associate_blkg.isra.33+0x330/0x900 [ 5.852062] generic_make_request+0x2c7/0x1890 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? rcu_softirq_qs+0x20/0x20 [ 5.852062] ? blk_queue_enter+0x11f0/0x11f0 [ 5.852062] ? rcu_read_lock_sched_held+0x14f/0x180 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 5.852062] ? check_preemption_disabled+0x48/0x280 [ 5.852062] ? find_held_lock+0x36/0x1c0 [ 5.852062] ? guard_bio_eod+0x1e8/0x630 [ 5.852062] ? lock_downgrade+0x900/0x900 [ 5.852062] ? check_preemption_disabled+0x48/0x280 [ 5.852062] submit_bio+0xba/0x460 [ 5.852062] ? submit_bio+0xba/0x460 [ 5.852062] ? generic_make_request+0x1890/0x1890 [ 5.852062] ? __bio_add_page+0x122/0x280 [ 5.852062] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 5.852062] ? guard_bio_eod+0x2af/0x630 [ 5.852062] submit_bh_wbc+0x5fa/0x7f0 [ 5.852062] block_read_full_page+0xc5c/0xf80 [ 5.852062] ? I_BDEV+0x20/0x20 [ 5.852062] ? __bread_gfp+0x310/0x310 [ 5.852062] ? noop_count+0x40/0x40 [ 5.852062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 5.852062] ? check_preemption_disabled+0x48/0x280 [ 5.852062] ? __this_cpu_preempt_check+0x1c/0x20 [ 5.852062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 5.852062] ? alloc_page_interleave+0x91/0x1c0 [ 5.852062] ? alloc_pages_current+0x17b/0x350 [ 5.852062] ? generic_perform_write+0x6a0/0x6a0 [ 5.852062] ? ret_from_fork+0x3a/0x50 [ 5.852062] blkdev_readpage+0x1c/0x20 [ 5.852062] do_read_cache_page+0x850/0x17b0 [ 5.852062] ? blkdev_writepages+0x30/0x30 [ 5.852062] ? pagecache_get_page+0xf00/0xf00 [ 5.852062] ? __lock_acquire+0x62f/0x4c20 [ 5.852062] ? mark_held_locks+0x130/0x130 [ 5.852062] ? __lock_acquire+0x62f/0x4c20 [ 5.852062] ? print_usage_bug+0xc0/0xc0 [ 5.852062] ? add_lock_to_list.isra.28+0x1ec/0x4c0 [ 5.852062] ? mark_held_locks+0x130/0x130 [ 5.852062] ? __lock_acquire+0x62f/0x4c20 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? print_usage_bug+0xc0/0xc0 [ 5.852062] ? mark_held_locks+0x130/0x130 [ 5.852062] ? __read_once_size_nocheck.constprop.8+0x10/0x10 [ 5.852062] ? ret_from_fork+0x3a/0x50 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? find_held_lock+0x36/0x1c0 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? blkdev_writepages+0x30/0x30 [ 5.852062] read_cache_page+0x5b/0x70 [ 5.852062] read_dev_sector+0x120/0x4f0 [ 5.852062] ? __delete_partition+0x210/0x210 [ 5.852062] ? graph_lock+0x270/0x270 [ 5.852062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 5.852062] ? check_preemption_disabled+0x48/0x280 [ 5.852062] ? adfspart_check_ADFS+0xa00/0xa00 [ 5.852062] adfspart_check_ICS+0x18b/0x1080 [ 5.852062] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 5.852062] ? widen_string+0xe0/0x2e0 [ 5.852062] ? set_precision+0xe0/0xe0 [ 5.852062] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 5.852062] ? adfspart_check_ADFS+0xa00/0xa00 [ 5.852062] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 5.852062] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 5.852062] ? format_decode+0x1b2/0xaf0 [ 5.852062] ? string+0x225/0x2d0 [ 5.852062] ? enable_ptr_key_workfn+0x30/0x30 [ 5.852062] ? memcpy+0x45/0x50 [ 5.852062] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 5.852062] ? vsnprintf+0x20d/0x1b60 [ 5.852062] ? pointer+0x900/0x900 [ 5.852062] ? snprintf+0xae/0xe0 [ 5.852062] ? vsprintf+0x40/0x40 [ 5.852062] ? alloc_page_interleave+0x91/0x1c0 [ 5.852062] ? adfspart_check_ADFS+0xa00/0xa00 [ 5.852062] check_partition+0x3c3/0x6f0 [ 5.852062] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 5.852062] rescan_partitions+0x16c/0x8e0 [ 5.852062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 5.852062] __blkdev_get+0xb7b/0x13b0 [ 5.852062] ? kasan_check_read+0x11/0x20 [ 5.852062] ? check_disk_change+0x140/0x140 [ 5.852062] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 5.852062] ? refcount_sub_and_test_checked+0x203/0x310 [ 5.852062] blkdev_get+0xc1/0xb50 [ 5.852062] ? bdget+0x5b0/0x5b0 [ 5.852062] ? rcu_read_unlock_special+0x370/0x370 [ 5.852062] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 5.852062] ? kobject_put+0x86/0xe0 [ 5.852062] __device_add_disk+0x1006/0x13d0 [ 5.852062] ? blk_alloc_devt+0x2e0/0x2e0 [ 5.852062] ? pointer+0x900/0x900 [ 5.852062] ? sprintf+0xb0/0xe0 [ 5.852062] ? scnprintf+0x130/0x130 [ 5.852062] ? __lockdep_init_map+0x105/0x590 [ 5.852062] device_add_disk+0x2a/0x40 [ 5.852062] brd_init+0x2da/0x3ee [ 5.852062] ? ramdisk_size+0x28/0x28 [ 5.852062] ? ramdisk_size+0x28/0x28 [ 5.852062] ? ramdisk_size+0x28/0x28 [ 5.852062] do_one_initcall+0x145/0x957 [ 5.852062] ? perf_trace_initcall_level+0x770/0x770 [ 5.852062] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 5.852062] ? rcu_pm_notify+0xc0/0xc0 [ 5.852062] ? trace_initcall_level+0x2d6/0x31b [ 5.852062] ? arch_local_irq_disable.part.5+0xb/0xb [ 5.852062] ? up_write+0x20/0x220 [ 5.852062] ? down_write_nested+0x130/0x130 [ 5.852062] ? down_read+0x120/0x120 [ 5.852062] ? kasan_poison_shadow+0x2f/0x40 [ 5.852062] ? kasan_unpoison_shadow+0x35/0x50 [ 5.852062] kernel_init_freeable+0x5cc/0x6ba [ 5.852062] ? rest_init+0x372/0x372 [ 5.852062] kernel_init+0x11/0x1ae [ 5.852062] ? rest_init+0x372/0x372 [ 5.852062] ret_from_fork+0x3a/0x50 [ 5.852062] Kernel Offset: disabled [ 5.852062] Rebooting in 86400 seconds..