ooting the kernel. [ 0.000000] Linux version 4.20.0-rc7-next-20181218+ (syzkaller@ci) (gcc version 8.0.1 20180413 (experimental) (GCC)) #173 SMP PREEMPT Tue Dec 18 07:47:26 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 [ 0.000002] kvm-clock: cpu 0, msr a74a001, primary cpu clock [ 0.000002] kvm-clock: using sched offset of 3045482248 cycles [ 0.000867] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.003466] tsc: Detected 2300.000 MHz processor [ 0.006943] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.008084] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.009176] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.013654] found SMP MP-table at [mem 0x000f2ce0-0x000f2cef] mapped at [(____ptrval____)] [ 0.015103] check: Scanning 1 areas for low memory corruption [ 0.016092] Using GB pages for direct mapping [ 0.018747] ACPI: Early table checksum verification disabled [ 0.019907] ACPI: RSDP 0x00000000000F2AB0 000014 (v00 Google) [ 0.020891] ACPI: RSDT 0x00000000BFFFDBA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.022211] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.023469] ACPI: DSDT 0x00000000BFFFDBE0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.024857] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.025483] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.026126] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.027440] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.028671] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.030018] ACPI: SRAT 0x00000000BFFFF3A0 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.031553] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.032234] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.032894] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.033974] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.034833] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.035757] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.037488] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.039125] NODE_DATA(0) allocated [mem 0x21fffa000-0x21fffdfff] [ 0.094080] Zone ranges: [ 0.094729] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.095645] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.096545] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.097384] Movable zone start for each node [ 0.098171] Early memory node ranges [ 0.098660] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.099531] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.100601] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.101509] Zeroed struct page in unavailable ranges: 101 pages [ 0.101516] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.641150] kasan: KernelAddressSanitizer initialized [ 0.642511] ACPI: PM-Timer IO Port: 0xb008 [ 0.643223] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.644251] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.645334] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.646383] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.647397] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.648514] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.649517] Using ACPI (MADT) for SMP configuration information [ 0.650484] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.651292] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.652250] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.653137] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.654179] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.655246] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.656355] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.657216] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.658157] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.659030] Booting paravirtualized kernel on KVM [ 0.659806] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.661484] random: get_random_bytes called from start_kernel+0x153/0x9e0 with crng_init=0 [ 0.662841] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.665125] percpu: Embedded 56 pages/cpu @(____ptrval____) s189448 r8192 d31736 u1048576 [ 0.666511] Built 1 zonelists, mobility grouping on. Total pages: 1935238 [ 0.667591] Policy zone: Normal [ 0.668098] 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 [ 1.372441] Memory: 6487012K/7863916K available (116761K kernel code, 13899K rwdata, 17612K rodata, 3124K init, 25476K bss, 1376904K reserved, 0K cma-reserved) [ 1.379647] Running RCU self tests [ 1.380209] rcu: Preemptible hierarchical RCU implementation. [ 1.380980] rcu: RCU lockdep checking is enabled. [ 1.381772] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 1.382768] rcu: RCU callback double-/use-after-free debug enabled. [ 1.383664] Tasks RCU enabled. [ 1.384101] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.385125] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.392632] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.395584] Console: colour VGA+ 80x25 [ 1.396193] printk: console [ttyS0] enabled [ 1.396193] printk: console [ttyS0] enabled [ 1.397438] printk: bootconsole [earlyser0] disabled [ 1.397438] printk: bootconsole [earlyser0] disabled [ 1.398801] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.399995] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.400596] ... MAX_LOCK_DEPTH: 48 [ 1.401221] ... MAX_LOCKDEP_KEYS: 8191 [ 1.401865] ... CLASSHASH_SIZE: 4096 [ 1.402524] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.403219] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.403855] ... CHAINHASH_SIZE: 32768 [ 1.404677] memory used by lock dependency info: 7263 kB [ 1.405484] per task-struct memory footprint: 1920 bytes [ 1.406357] ACPI: Core revision 20181213 [ 1.407490] APIC: Switch to symmetric I/O mode setup [ 1.408801] x2apic enabled [ 1.411342] Switched APIC routing to physical x2apic. [ 1.415517] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.416538] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.418188] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.419359] pid_max: default: 32768 minimum: 301 [ 1.420479] LSM: Security Framework initializing [ 1.421245] Yama: becoming mindful. [ 1.422009] AppArmor: AppArmor initialized [ 1.428717] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 1.432488] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 1.434468] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.435495] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.437116] Kernel panic - not syncing: Can't create rootfs [ 1.437935] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.20.0-rc7-next-20181218+ #173 [ 1.438155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1.438155] Call Trace: [ 1.438155] dump_stack+0x244/0x39d [ 1.438155] ? dump_stack_print_info.cold.1+0x20/0x20 [ 1.438155] panic+0x2ad/0x632 [ 1.438155] ? add_taint.cold.5+0x16/0x16 [ 1.438155] ? put_fs_context+0x47a/0x5a0 [ 1.438155] ? vfs_get_tree+0x3ca/0x600 [ 1.438155] ? mnt_init+0x212/0x403 [ 1.438155] ? mnt_init+0x204/0x403 [ 1.438155] mnt_init+0x223/0x403 [ 1.438155] ? set_mphash_entries+0xc2/0xc2 [ 1.438155] vfs_caches_init+0x113/0x123 [ 1.438155] start_kernel+0x964/0x9e0 [ 1.438155] ? mem_encrypt_init+0xb/0xb [ 1.438155] ? early_idt_handler_common+0x3b/0x60 [ 1.438155] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1.438155] ? x86_family+0x3e/0x50 [ 1.438155] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 1.438155] x86_64_start_reservations+0x29/0x2b [ 1.438155] x86_64_start_kernel+0x76/0x79 [ 1.438155] secondary_startup_64+0xa4/0xb0 [ 1.438155] Rebooting in 86400 seconds..