[ 16.568516] random: sshd: uninitialized urandom read (32 bytes read, 33 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: [ 19.526525] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 19.786075] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 20.636509] random: sshd: uninitialized urandom read (32 bytes read, 102 bits of entropy available) [ 20.811738] random: sshd: uninitialized urandom read (32 bytes read, 107 bits of entropy available) Warning: Permanently added '10.128.0.11' (ECDSA) to the list of known hosts. [ 26.334306] random: sshd: uninitialized urandom read (32 bytes read, 114 bits of entropy available) executing program [ 26.434208] ================================================================== [ 26.441600] BUG: KASAN: use-after-free in __lock_acquire+0x387e/0x4b50 [ 26.448239] Read of size 8 at addr ffff8801d12f79b8 by task syzkaller210019/3317 [ 26.455743] [ 26.457339] CPU: 1 PID: 3317 Comm: syzkaller210019 Not tainted 4.4.110-g618a510 #22 [ 26.465110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.474432] 0000000000000000 c497b79e3b3304ec ffff8800b0d878d0 ffffffff81d04e3d [ 26.482391] ffffea000744bd80 ffff8801d12f79b8 0000000000000000 ffff8801d12f79b8 [ 26.490354] 0000000000000000 ffff8800b0d87908 ffffffff814fd1f3 ffff8801d12f79b8 [ 26.498309] Call Trace: [ 26.500865] [] dump_stack+0xc1/0x124 [ 26.506198] [] print_address_description+0x73/0x260 [ 26.512844] [] kasan_report+0x285/0x370 [ 26.518437] [] ? __lock_acquire+0x387e/0x4b50 [ 26.524558] [] __asan_report_load8_noabort+0x14/0x20 [ 26.531281] [] __lock_acquire+0x387e/0x4b50 [ 26.537219] [] ? __lock_acquire+0xb5f/0x4b50 [ 26.543244] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 26.550227] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 26.557206] [] ? mark_held_locks+0xaf/0x100 [ 26.563147] [] lock_acquire+0x15e/0x460 [ 26.568736] [] ? remove_wait_queue+0x14/0x40 [ 26.574766] [] _raw_spin_lock_irqsave+0x4e/0x70 [ 26.581050] [] ? remove_wait_queue+0x14/0x40 [ 26.587071] [] remove_wait_queue+0x14/0x40 [ 26.592927] [] ep_unregister_pollwait.isra.6+0xa8/0x220 [ 26.599911] [] ? ep_unregister_pollwait.isra.6+0x114/0x220 [ 26.607150] [] ? ep_free+0x1c0/0x1c0 [ 26.612477] [] ep_free+0x93/0x1c0 [ 26.617544] [] ? ep_free+0x1c0/0x1c0 [ 26.622876] [] ep_eventpoll_release+0x44/0x60 [ 26.628985] [] __fput+0x233/0x6d0 [ 26.634056] [] ____fput+0x15/0x20 [ 26.639125] [] task_work_run+0x104/0x180 [ 26.644808] [] do_exit+0x871/0x2a20 [ 26.650052] [] ? release_task+0x1240/0x1240 [ 26.655990] [] ? SyS_epoll_create+0x190/0x190 [ 26.662099] [] do_group_exit+0x108/0x320 [ 26.667776] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 26.674234] [] SyS_exit_group+0x1d/0x20 [ 26.679825] [] entry_SYSCALL_64_fastpath+0x16/0x92 [ 26.686370] [ 26.687967] Allocated by task 3317: [ 26.691557] [] save_stack_trace+0x26/0x50 [ 26.697453] [] save_stack+0x43/0xd0 [ 26.702813] [] kasan_kmalloc+0xad/0xe0 [ 26.708430] [] kmem_cache_alloc_trace+0x100/0x2b0 [ 26.715008] [] binder_get_thread+0x181/0x7a0 [ 26.721150] [] binder_poll+0x4a/0x210 [ 26.726680] [] SyS_epoll_ctl+0x10b1/0x2050 [ 26.732646] [] entry_SYSCALL_64_fastpath+0x16/0x92 [ 26.739308] [ 26.740900] Freed by task 3317: [ 26.744141] [] save_stack_trace+0x26/0x50 [ 26.750017] [] save_stack+0x43/0xd0 [ 26.755381] [] kasan_slab_free+0x72/0xc0 [ 26.761173] [] kfree+0xfc/0x300 [ 26.766186] [] binder_thread_dec_tmpref+0x1c1/0x250 [ 26.773024] [] binder_thread_release+0x27d/0x540 [ 26.779720] [] binder_ioctl+0xb94/0x12e0 [ 26.779729] [] do_vfs_ioctl+0x7aa/0xee0 [ 26.779736] [] SyS_ioctl+0x8f/0xc0 [ 26.779744] [] entry_SYSCALL_64_fastpath+0x16/0x92 [ 26.779746] [ 26.779750] The buggy address belongs to the object at ffff8801d12f7900 [ 26.779750] which belongs to the cache kmalloc-512 of size 512 [ 26.779755] The buggy address is located 184 bytes inside of [ 26.779755] 512-byte region [ffff8801d12f7900, ffff8801d12f7b00) [ 26.779757] The buggy address belongs to the page: [ 26.842367] ------------[ cut here ]------------ [ 26.847176] WARNING: CPU: 0 PID: 3319 at net/ipv4/tcp_input.c:1922 tcp_enter_loss+0xd26/0xfe0() [ 26.856160] Kernel panic - not syncing: panic_on_warn set ... [ 26.856160] [ 26.863540] CPU: 0 PID: 3319 Comm: getty Not tainted 4.4.110-g618a510 #22 [ 26.870457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.879804] 0000000000000000 0f6ad4a63741f059 ffff8801db207a98 ffffffff81d04e3d [ 26.887839] ffffffff83842f60 ffff8801db207b70 ffffffff83cee920 0000000000000009 [ 26.895882] 0000000000000782 ffff8801db207b60 ffffffff814197fa 0000000041b58ab3 [ 26.903918] Call Trace: [ 26.906486] [] dump_stack+0xc1/0x124 [ 26.912589] [] panic+0x1aa/0x388 [ 26.917691] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 26.924627] [] ? pm_qos_get_value.part.4+0xb/0xb [ 26.931029] [] ? warn_slowpath_common+0x10a/0x140 [ 26.937521] [] warn_slowpath_common+0x125/0x140 [ 26.943847] [] ? tcp_enter_loss+0xd26/0xfe0 [ 26.949816] [] warn_slowpath_null+0x29/0x30 [ 26.955787] [] tcp_enter_loss+0xd26/0xfe0 [ 26.961585] [] tcp_retransmit_timer+0xa1d/0x1f10 [ 26.967985] [] tcp_write_timer_handler+0x21e/0x6d0 [ 26.974561] [] tcp_write_timer+0xa1/0xd0 [ 26.980268] [] call_timer_fn+0x18b/0x860 [ 26.985970] [] ? call_timer_fn+0xdc/0x860 [ 26.991771] [] ? tcp_write_timer_handler+0x6d0/0x6d0 [ 26.998525] [] ? process_timeout+0x20/0x20 [ 27.004407] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 27.010724] [] ? tcp_write_timer_handler+0x6d0/0x6d0 [ 27.017481] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 27.024330] [] ? tcp_write_timer_handler+0x6d0/0x6d0 [ 27.031078] [] run_timer_softirq+0x604/0xbb0 [ 27.037132] [] ? msleep+0xe0/0xe0 [ 27.042312] [] __do_softirq+0x24d/0xa59 [ 27.047939] [] irq_exit+0x119/0x140 [ 27.053214] [] smp_apic_timer_interrupt+0x7b/0xa0 [ 27.059703] [] apic_timer_interrupt+0xa0/0xb0 [ 27.065840] [] ? kmem_cache_alloc+0xba/0x290 [ 27.072652] [] ? preempt_count_sub+0x5d/0x160 [ 27.078807] [] is_module_text_address+0x2a/0x50 [ 27.085125] [] __kernel_text_address+0x6b/0xa0 [ 27.091359] [] print_context_stack+0x48/0xc0 [ 27.097418] [] dump_trace+0x142/0x350 [ 27.102868] [] save_stack_trace+0x26/0x50 [ 27.108666] [] save_stack+0x43/0xd0 [ 27.113945] [] ? save_stack_trace+0x26/0x50 [ 27.119913] [] ? save_stack+0x43/0xd0 [ 27.125366] [] ? kasan_kmalloc+0xad/0xe0 [ 27.131079] [] ? kasan_slab_alloc+0x12/0x20 [ 27.137053] [] ? kmem_cache_alloc+0xba/0x290 [ 27.143113] [] ? __wake_up_locked_key+0x20/0x20 [ 27.149429] [] ? filemap_map_pages+0x4e1/0x9d0 [ 27.155669] [] ? kasan_unpoison_shadow+0x35/0x50 [ 27.162075] [] kasan_kmalloc+0xad/0xe0 [ 27.167610] [] ? getname_flags+0xcb/0x580 [ 27.173410] [] kasan_slab_alloc+0x12/0x20 [ 27.179210] [] kmem_cache_alloc+0xba/0x290 [ 27.185099] [] getname_flags+0xcb/0x580 [ 27.190724] [] getname+0x19/0x20 [ 27.195753] [] do_sys_open+0x205/0x4b0 [ 27.201288] [] ? filp_open+0x70/0x70 [ 27.206653] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 27.213490] [] SyS_open+0x2d/0x40 [ 27.218592] [] entry_SYSCALL_64_fastpath+0x16/0x92 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: 0x00000000039c526e input_len: 0x0000000001426fef output: 0x0000000001000000 output_len: 0x0000000003dd7a40 run_size: 0x000000000550d000 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 4.4.110-g618a510 (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #22 SMP PREEMPT Tue Jan 9 13:27:30 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 1995817923 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: 1935238 [ 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: 6581460K/7863916K available (40428K kernel code, 6130K rwdata, 8808K rodata, 1844K init, 23616K bss, 1282456K 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 [ 1.277346] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.278488] pid_max: default: 32768 minimum: 301 [ 1.279201] ACPI: Core revision 20150930 [ 1.351330] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.352571] Security Framework initialized [ 1.353136] SELinux: Initializing. [ 1.353800] AppArmor: AppArmor disabled by boot time parameter [ 1.354701] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.355621] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.359464] Initializing cgroup subsys io [ 1.360071] Initializing cgroup subsys freezer [ 1.360712] Initializing cgroup subsys hugetlb [ 1.361332] Initializing cgroup subsys debug [ 1.362145] CPU: Physical Processor ID: 0 [ 1.364006] mce: CPU supports 32 MCE banks [ 1.364727] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.365574] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.368544] Freeing SMP alternatives memory: 44K [ 1.376992] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.496575] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.498069] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.586861] x86: Booting SMP configuration: [ 1.587521] .... node #0, CPUs: #1 [ 1.588277] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.593043] x86: Booted up 1 node, 2 CPUs [ 1.593630] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.598272] devtmpfs: initialized [ 1.607805] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.609165] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.610835] xor: automatically using best checksumming function: [ 1.624280] kworker/u4:0 (21) used greatest stack depth: 27864 bytes left [ 1.706577] avx : 22010.400 MB/sec [ 1.707781] RTC time: 14:10:54, date: 01/09/18 [ 1.710089] NET: Registered protocol family 16 [ 1.711175] schedtune: init normalization constants... [ 1.711872] schedtune: no energy model data [ 1.712454] schedtune: disabled! [ 1.717860] kworker/u4:0 (30) used greatest stack depth: 27752 bytes left [ 1.746944] cpuidle: using governor ladder [ 1.776642] cpuidle: using governor menu [ 1.777956] ACPI: bus type PCI registered [ 1.778512] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 1.781370] PCI: Using configuration type 1 for base access [ 1.791062] kworker/u4:0 (46) used greatest stack depth: 27224 bytes left [ 2.010455] kworker/u4:1 (482) used greatest stack depth: 26984 bytes left [ 2.226583] raid6: sse2x1 gen() 4641 MB/s [ 2.396546] raid6: sse2x1 xor() 2516 MB/s [ 2.566526] raid6: sse2x2 gen() 7582 MB/s [ 2.736513] raid6: sse2x2 xor() 4242 MB/s [ 2.906510] raid6: sse2x4 gen() 9858 MB/s [ 3.076494] raid6: sse2x4 xor() 5497 MB/s [ 3.246476] raid6: avx2x1 gen() 9444 MB/s [ 3.416471] raid6: avx2x2 gen() 14663 MB/s [ 3.586460] raid6: avx2x4 gen() 19178 MB/s [ 3.587162] raid6: using algorithm avx2x4 gen() 19178 MB/s [ 3.587901] raid6: using avx2x2 recovery algorithm [ 3.589217] ACPI: Added _OSI(Module Device) [ 3.589808] ACPI: Added _OSI(Processor Device) [ 3.590455] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.591096] ACPI: Added _OSI(Processor Aggregator Device) [ 3.601569] ACPI: Executed 2 blocks of module-level executable AML code [ 3.679068] ACPI: Interpreter enabled [ 3.680001] ACPI: (supports S0 S3 S4 S5) [ 3.680595] ACPI: Using IOAPIC for interrupt routing [ 3.681714] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.892877] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.893863] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 3.895175] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 3.896161] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.922568] PCI host bridge to bus 0000:00 [ 3.923260] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.924229] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.925171] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.926217] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 3.927256] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.975069] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.080582] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 4.087194] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 4.093408] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 4.099563] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 4.103488] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 4.116697] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.120138] vgaarb: loaded [ 4.123219] SCSI subsystem initialized [ 4.128305] ACPI: bus type USB registered [ 4.130264] usbcore: registered new interface driver usbfs [ 4.131520] usbcore: registered new interface driver hub [ 4.132686] usbcore: registered new device driver usb [ 4.134567] pps_core: LinuxPPS API ver. 1 registered [ 4.135276] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.136643] PTP clock support registered [ 4.139527] Advanced Linux Sound Architecture Driver Initialized. [ 4.141134] PCI: Using ACPI for IRQ routing [ 4.156598] NetLabel: Initializing [ 4.157160] NetLabel: domain hash size = 128 [ 4.157776] NetLabel: protocols = UNLABELED CIPSOv4 [ 4.158749] NetLabel: unlabeled traffic allowed by default [ 4.161223] amd_nb: Cannot enumerate AMD northbridges [ 4.162044] clocksource: Switched to clocksource kvm-clock [ 4.323471] pnp: PnP ACPI init [ 4.346250] pnp: PnP ACPI: found 7 devices [ 4.359527] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.361122] NET: Registered protocol family 2 [ 4.363915] TCP established hash table entries: 65536 (order: 7, 524288 bytes) [ 4.366124] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes) [ 4.373440] TCP: Hash tables configured (established 65536 bind 65536) [ 4.374661] UDP hash table entries: 4096 (order: 7, 655360 bytes) [ 4.376894] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) [ 4.379531] NET: Registered protocol family 1 [ 4.380249] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.381999] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.383080] software IO TLB [mem 0xbbffd000-0xbfffd000] (64MB) mapped at [ffff8800bbffd000-ffff8800bfffcfff] [ 4.385033] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 10737418240 ms ovfl timer [ 4.386231] hw unit of domain pp0-core 2^-0 Joules [ 4.386892] hw unit of domain package 2^-0 Joules [ 4.387530] hw unit of domain dram 2^-16 Joules [ 4.393272] Scanning for low memory corruption every 60 seconds [ 4.402138] audit: initializing netlink subsys (disabled) [ 4.403195] audit: type=2000 audit(1515507057.342:1): initialized [ 4.410405] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 4.546707] VFS: Disk quotas dquot_6.6.0 [ 4.548253] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.571727] fuse init (API version 7.23) [ 4.576534] 9p: Installing v9fs 9p2000 file system support [ 4.589474] async_tx: api initialized (async) [ 4.591525] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 4.593340] io scheduler noop registered [ 4.593916] io scheduler deadline registered [ 4.596396] io scheduler cfq registered (default) [ 4.607045] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 4.610863] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.611918] ACPI: Power Button [PWRF] [ 4.614878] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.615903] ACPI: Sleep Button [SLPF] [ 4.639988] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 4.640900] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.665000] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 4.665959] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.674661] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.697229] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.721800] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.746462] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.770766] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.778863] Non-volatile memory driver v1.3 [ 4.780683] Linux agpgart interface v0.103 [ 4.783642] [drm] Initialized drm 1.1.0 20060810 [ 4.883703] brd: module loaded [ 4.960545] loop: module loaded [ 4.984640] nbd: registered device at major 43 [ 5.132486] drbd: initialized. Version: 8.4.5 (api:1/proto:86-101) [ 5.133314] drbd: built-in [ 5.133617] drbd: registered as block device major 147 [ 5.162825] scsi host0: Virtio SCSI HBA [ 5.211094] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.382679] tsc: Refined TSC clocksource calibration: 2299.918 MHz [ 5.383986] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x2126e795dfc, max_idle_ns: 440795229039 ns