[ 16.100112] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.465495] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 21.836896] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 22.705096] random: sshd: uninitialized urandom read (32 bytes read, 105 bits of entropy available) [ 22.881784] random: sshd: uninitialized urandom read (32 bytes read, 111 bits of entropy available) Warning: Permanently added '10.128.15.208' (ECDSA) to the list of known hosts. [ 28.257809] random: sshd: uninitialized urandom read (32 bytes read, 119 bits of entropy available) executing program [ 28.352596] ================================================================== [ 28.360000] BUG: KASAN: use-after-free in __lock_acquire+0x387e/0x4b50 [ 28.366637] Read of size 8 at addr ffff8800b474efb8 by task syzkaller102160/3314 [ 28.374135] [ 28.375734] CPU: 1 PID: 3314 Comm: syzkaller102160 Not tainted 4.4.112-g52c02cf #30 [ 28.383495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.392823] 0000000000000000 5bf91cae15d5d4b1 ffff8800b43078d0 ffffffff81d056fd [ 28.400792] ffffea0002d1d380 ffff8800b474efb8 0000000000000000 ffff8800b474efb8 [ 28.408760] 0000000000000000 ffff8800b4307908 ffffffff814fd953 ffff8800b474efb8 [ 28.416734] Call Trace: [ 28.419297] [] dump_stack+0xc1/0x124 [ 28.424641] [] print_address_description+0x73/0x260 [ 28.431279] [] kasan_report+0x285/0x370 [ 28.436872] [] ? __lock_acquire+0x387e/0x4b50 [ 28.442991] [] __asan_report_load8_noabort+0x14/0x20 [ 28.449733] [] __lock_acquire+0x387e/0x4b50 [ 28.455671] [] ? __lock_acquire+0xb5f/0x4b50 [ 28.461698] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 28.468681] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 28.475664] [] ? mark_held_locks+0xaf/0x100 [ 28.481609] [] lock_acquire+0x15e/0x460 [ 28.487200] [] ? remove_wait_queue+0x14/0x40 [ 28.493229] [] _raw_spin_lock_irqsave+0x4e/0x70 [ 28.499519] [] ? remove_wait_queue+0x14/0x40 [ 28.505544] [] remove_wait_queue+0x14/0x40 [ 28.511416] [] ep_unregister_pollwait.isra.6+0xa8/0x220 [ 28.518400] [] ? ep_unregister_pollwait.isra.6+0x114/0x220 [ 28.525644] [] ? ep_free+0x1c0/0x1c0 [ 28.530975] [] ep_free+0x93/0x1c0 [ 28.536046] [] ? ep_free+0x1c0/0x1c0 [ 28.541378] [] ep_eventpoll_release+0x44/0x60 [ 28.547491] [] __fput+0x233/0x6d0 [ 28.552563] [] ____fput+0x15/0x20 [ 28.557637] [] task_work_run+0x104/0x180 [ 28.563317] [] do_exit+0x871/0x2a20 [ 28.568561] [] ? release_task+0x1240/0x1240 [ 28.574500] [] ? SyS_epoll_create+0x190/0x190 [ 28.580613] [] do_group_exit+0x108/0x320 [ 28.586303] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 28.592765] [] SyS_exit_group+0x1d/0x20 [ 28.598368] [] entry_SYSCALL_64_fastpath+0x16/0x92 [ 28.604911] [ 28.606506] Allocated by task 3314: [ 28.610097] [] save_stack_trace+0x26/0x50 [ 28.615995] [] save_stack+0x43/0xd0 [ 28.621360] [] kasan_kmalloc+0xad/0xe0 [ 28.626979] [] kmem_cache_alloc_trace+0x100/0x2b0 [ 28.633553] [] binder_get_thread+0x181/0x7a0 [ 28.639697] [] binder_poll+0x4a/0x210 [ 28.645230] [] SyS_epoll_ctl+0x10b1/0x2050 [ 28.651202] [] entry_SYSCALL_64_fastpath+0x16/0x92 [ 28.657866] [ 28.659463] Freed by task 3314: [ 28.662708] [] save_stack_trace+0x26/0x50 [ 28.668595] [] save_stack+0x43/0xd0 [ 28.673957] [] kasan_slab_free+0x72/0xc0 [ 28.679754] [] kfree+0xfc/0x300 [ 28.684767] [] binder_thread_dec_tmpref+0x1c1/0x250 [ 28.691517] [] binder_thread_release+0x27d/0x540 [ 28.698006] [] binder_ioctl+0xb94/0x12e0 [ 28.703811] [] do_vfs_ioctl+0x7aa/0xee0 [ 28.709529] [] SyS_ioctl+0x8f/0xc0 [ 28.714806] [] entry_SYSCALL_64_fastpath+0x16/0x92 [ 28.721471] [ 28.723070] The buggy address belongs to the object at ffff8800b474ef00 [ 28.723070] which belongs to the cache kmalloc-512 of size 512 [ 28.735697] The buggy address is located 184 bytes inside of [ 28.735697] 512-byte region [ffff8800b474ef00, ffff8800b474f100) [ 28.747548] The buggy address belongs to the page: SeaBIOS (version 1.8.2-20171130_102032-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039c626e input_len: 0x0000000001427524 output: 0x0000000001000000 output_len: 0x0000000003dd8a40 run_size: 0x000000000550e000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.112-g52c02cf (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #30 SMP PREEMPT Fri Jan 19 08:50:22 UTC 2018 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: 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] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1992598161 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 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 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 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 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 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 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s134024 r8192 d29816 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935237 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] Memory: 6581452K/7863916K available (40432K kernel code, 6131K rwdata, 8808K rodata, 1848K init, 23616K bss, 1282464K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] Kernel/User page tables isolation: enabled [ 0.000000] Running RCU self tests [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] RCU lockdep checking is enabled. [ 0.000000] Build-time adjustment of leaf fanout to 64. [ 0.000000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=2 [ 0.000000] NR_IRQS:4352 nr_irqs:440 16 [ 0.000000] console [ttyS0] enabled [ 0.000000] console [ttyS0] enabled [ 0.000000] bootconsole [earlyser0] disabled [ 0.000000] bootconsole [earlyser0] disabled [ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.000000] ... MAX_LOCK_DEPTH: 48 [ 0.000000] ... MAX_LOCKDEP_KEYS: 8191 [ 0.000000] ... CLASSHASH_SIZE: 4096 [ 0.000000] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.000000] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.000000] ... CHAINHASH_SIZE: 32768 [ 0.000000] memory used by lock dependency info: 8159 kB [ 0.000000] per task-struct memory footprint: 1920 bytes [ 0.000000] tsc: Detected 2300.000 MHz processor [ 1.293540] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.294735] pid_max: default: 32768 minimum: 301 [ 1.295464] ACPI: Core revision 20150930 [ 1.364854] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.366176] Security Framework initialized [ 1.366780] SELinux: Initializing. [ 1.367433] AppArmor: AppArmor disabled by boot time parameter [ 1.368363] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.369291] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.373006] Initializing cgroup subsys io [ 1.373624] Initializing cgroup subsys freezer [ 1.374285] Initializing cgroup subsys hugetlb [ 1.374912] Initializing cgroup subsys debug [ 1.375697] CPU: Physical Processor ID: 0 [ 1.377569] mce: CPU supports 32 MCE banks [ 1.378306] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.379144] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.382312] Freeing SMP alternatives memory: 44K [ 1.391675] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.512677] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.514262] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.602977] x86: Booting SMP configuration: [ 1.603775] .... node #0, CPUs: #1 [ 1.604708] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.609510] x86: Booted up 1 node, 2 CPUs [ 1.610278] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.614892] devtmpfs: initialized [ 1.624379] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.625838] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.627534] xor: automatically using best checksumming function: [ 1.640608] kworker/u4:0 (21) used greatest stack depth: 27224 bytes left [ 1.722689] avx : 21628.000 MB/sec [ 1.723928] RTC time: 11:03:38, date: 01/19/18 [ 1.726224] NET: Registered protocol family 16 [ 1.727356] schedtune: init normalization constants... [ 1.728077] schedtune: no energy model data [ 1.728766] schedtune: disabled! [ 1.762985] cpuidle: using governor ladder [ 1.792732] cpuidle: using governor menu [ 1.794140] ACPI: bus type PCI registered [ 1.794717] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 1.797532] PCI: Using configuration type 1 for base access [ 2.222740] raid6: sse2x1 gen() 4744 MB/s [ 2.392685] raid6: sse2x1 xor() 2465 MB/s [ 2.562674] raid6: sse2x2 gen() 6999 MB/s [ 2.732667] raid6: sse2x2 xor() 3945 MB/s [ 2.902670] raid6: sse2x4 gen() 8632 MB/s [ 3.072667] raid6: sse2x4 xor() 5265 MB/s [ 3.242658] raid6: avx2x1 gen() 9388 MB/s [ 3.412653] raid6: avx2x2 gen() 14541 MB/s [ 3.582649] raid6: avx2x4 gen() 18929 MB/s [ 3.583393] raid6: using algorithm avx2x4 gen() 18929 MB/s [ 3.584190] raid6: using avx2x2 recovery algorithm [ 3.585532] ACPI: Added _OSI(Module Device) [ 3.586184] ACPI: Added _OSI(Processor Device) [ 3.586814] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.587564] ACPI: Added _OSI(Processor Aggregator Device) [ 3.597937] ACPI: Executed 2 blocks of module-level executable AML code [ 3.674282] ACPI: Interpreter enabled [ 3.676796] ACPI: (supports S0 S3 S4 S5) [ 3.677399] ACPI: Using IOAPIC for interrupt routing [ 3.678597] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.886255] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.887301] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 3.888750] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 3.889879] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.915864] PCI host bridge to bus 0000:00 [ 3.916818] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.917805] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.918852] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.919913] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 3.920961] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.962684] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.054710] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 4.061459] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 4.067989] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 4.074243] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 4.078228] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 4.091252] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.094851] vgaarb: loaded [ 4.098115] SCSI subsystem initialized [ 4.102548] ACPI: bus type USB registered [ 4.104021] usbcore: registered new interface driver usbfs [ 4.105261] usbcore: registered new interface driver hub [ 4.106297] usbcore: registered new device driver usb [ 4.108773] pps_core: LinuxPPS API ver. 1 registered [ 4.109712] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.111072] PTP clock support registered [ 4.113932] Advanced Linux Sound Architecture Driver Initialized. [ 4.115538] PCI: Using ACPI for IRQ routing [ 4.139764] NetLabel: Initializing [ 4.140331] NetLabel: domain hash size = 128 [ 4.140993] NetLabel: protocols = UNLABELED CIPSOv4 [ 4.142044] NetLabel: unlabeled traffic allowed by default [ 4.144807] amd_nb: Cannot enumerate AMD northbridges [ 4.145676] clocksource: Switched to clocksource kvm-clock [ 4.303860] pnp: PnP ACPI init [ 4.327117] pnp: PnP ACPI: found 7 devices [ 4.339937] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.341787] NET: Registered protocol family 2 [ 4.344508] TCP established hash table entries: 65536 (order: 7, 524288 bytes) [ 4.347277] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes) [ 4.354578] TCP: Hash tables configured (established 65536 bind 65536) [ 4.355889] UDP hash table entries: 4096 (order: 7, 655360 bytes) [ 4.357648] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) [ 4.361049] NET: Registered protocol family 1 [ 4.361870] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.363635] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.364723] software IO TLB [mem 0xbbffd000-0xbfffd000] (64MB) mapped at [ffff8800bbffd000-ffff8800bfffcfff] [ 4.366803] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 10737418240 ms ovfl timer [ 4.368106] hw unit of domain pp0-core 2^-0 Joules [ 4.368820] hw unit of domain package 2^-0 Joules [ 4.369558] hw unit of domain dram 2^-16 Joules [ 4.375108] Scanning for low memory corruption every 60 seconds [ 4.383301] audit: initializing netlink subsys (disabled) [ 4.384371] audit: type=2000 audit(1516359820.568:1): initialized [ 4.391597] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 4.520400] VFS: Disk quotas dquot_6.6.0 [ 4.522021] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.544274] fuse init (API version 7.23) [ 4.547909] 9p: Installing v9fs 9p2000 file system support [ 4.562016] async_tx: api initialized (async) [ 4.563920] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 4.566273] io scheduler noop registered [ 4.567100] io scheduler deadline registered [ 4.569558] io scheduler cfq registered (default) [ 4.577145] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 4.580781] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.582062] ACPI: Power Button [PWRF] [ 4.583848] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.585541] ACPI: Sleep Button [SLPF] [ 4.610726] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 4.611750] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.636847] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 4.637875] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.645613] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.669493] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.695075] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.720955] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.746494] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.754640] Non-volatile memory driver v1.3 [ 4.756954] Linux agpgart interface v0.103 [ 4.760127] [drm] Initialized drm 1.1.0 20060810 [ 4.859361] brd: module loaded [ 4.938833] loop: module loaded [ 4.962329] nbd: registered device at major 43 [ 5.098079] drbd: initialized. Version: 8.4.5 (api:1/proto:86-101) [ 5.099677] drbd: built-in [ 5.100083] drbd: registered as block device major 147 [ 5.140902] scsi host0: Virtio SCSI HBA [ 5.189743] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.366184] tsc: Refined TSC clocksource calibration: 2299.803 MHz [ 5.367596] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x21267aeb7b4, max_idle_ns: 440795247387 ns