[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 15.626259] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.660467] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available) [ 22.137827] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available) [ 23.047252] random: sshd: uninitialized urandom read (32 bytes read, 112 bits of entropy available) [ 23.217104] random: sshd: uninitialized urandom read (32 bytes read, 117 bits of entropy available) Warning: Permanently added '10.128.15.218' (ECDSA) to the list of known hosts. [ 28.592541] random: sshd: uninitialized urandom read (32 bytes read, 126 bits of entropy available) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 28.934059] ================================================================== [ 28.941437] BUG: KASAN: use-after-free in pppol2tp_session_destruct+0xee/0x110 [ 28.948765] Read of size 4 at addr ffff8801d33de280 by task syzkaller241845/3313 [ 28.956263] [ 28.957860] CPU: 1 PID: 3313 Comm: syzkaller241845 Not tainted 4.4.112-g3fc4284 #25 [ 28.965619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.974940] 0000000000000000 7651c7ee495b2f3f ffff8800b4327c28 ffffffff81d054ed [ 28.982913] ffffea00074cf780 ffff8801d33de280 0000000000000000 ffff8801d33de280 [ 28.990884] ffffffff82dea4d0 ffff8800b4327c60 ffffffff814fd953 ffff8801d33de280 [ 28.998849] Call Trace: [ 29.001408] [] dump_stack+0xc1/0x124 [ 29.006743] [] ? sock_release+0x1e0/0x1e0 [ 29.012507] [] print_address_description+0x73/0x260 [ 29.019158] [] ? sock_release+0x1e0/0x1e0 [ 29.024927] [] kasan_report+0x285/0x370 [ 29.030521] [] ? pppol2tp_session_destruct+0xee/0x110 [ 29.037326] [] __asan_report_load4_noabort+0x14/0x20 [ 29.044053] [] pppol2tp_session_destruct+0xee/0x110 [ 29.050689] [] ? pppol2tp_seq_start+0x4e0/0x4e0 [ 29.056978] [] sk_destruct+0x4a/0x4c0 [ 29.062394] [] __sk_free+0x57/0x230 [ 29.067638] [] sk_free+0x30/0x40 [ 29.072623] [] pppol2tp_release+0x27a/0x310 [ 29.078562] [] sock_release+0x8d/0x1e0 [ 29.084075] [] sock_close+0x16/0x20 [ 29.089317] [] __fput+0x233/0x6d0 [ 29.094388] [] ____fput+0x15/0x20 [ 29.099459] [] task_work_run+0x104/0x180 [ 29.105137] [] exit_to_usermode_loop+0x145/0x170 [ 29.111508] [] do_fast_syscall_32+0x607/0x890 [ 29.117620] [] sysenter_flags_fixed+0xd/0x17 [ 29.123643] [ 29.125238] Allocated by task 3312: [ 29.128837] [] save_stack_trace+0x26/0x50 [ 29.134722] [] save_stack+0x43/0xd0 [ 29.140083] [] kasan_kmalloc+0xad/0xe0 [ 29.145705] [] __kmalloc+0x124/0x320 [ 29.151154] [] l2tp_session_create+0x39/0x10f0 [ 29.157480] [] pppol2tp_connect+0x10fc/0x1930 [ 29.163716] [] SYSC_connect+0x1b6/0x310 [ 29.169427] [] SyS_connect+0x24/0x30 [ 29.174871] [] do_fast_syscall_32+0x314/0x890 [ 29.181099] [] sysenter_flags_fixed+0xd/0x17 [ 29.187245] [ 29.188840] Freed by task 3312: [ 29.192083] [] save_stack_trace+0x26/0x50 [ 29.197977] [] save_stack+0x43/0xd0 [ 29.203338] [] kasan_slab_free+0x72/0xc0 [ 29.209132] [] kfree+0xfc/0x300 [ 29.214141] [] l2tp_session_free+0x170/0x200 [ 29.220292] [] l2tp_tunnel_closeall+0x2d1/0x3b0 [ 29.226689] [] l2tp_udp_encap_destroy+0x8b/0xf0 [ 29.233087] [] udpv6_destroy_sock+0xb1/0xd0 [ 29.239141] [] sk_common_release+0x6b/0x300 [ 29.245202] [] udp_lib_close+0x15/0x20 [ 29.250838] [] inet_release+0xfa/0x1d0 [ 29.256458] [] inet6_release+0x50/0x70 [ 29.262079] [] sock_release+0x8d/0x1e0 [ 29.267705] [] sock_close+0x16/0x20 [ 29.273064] [] __fput+0x233/0x6d0 [ 29.278255] [] ____fput+0x15/0x20 [ 29.283446] [] task_work_run+0x104/0x180 [ 29.289243] [] exit_to_usermode_loop+0x145/0x170 [ 29.295735] [] do_fast_syscall_32+0x607/0x890 [ 29.301966] [] sysenter_flags_fixed+0xd/0x17 [ 29.308121] [ 29.309719] The buggy address belongs to the object at ffff8801d33de280 [ 29.309719] which belongs to the cache kmalloc-512 of size 512 [ 29.322342] The buggy address is located 0 bytes inside of [ 29.322342] 512-byte region [ffff8801d33de280, ffff8801d33de480) [ 29.334008] The buggy address belongs to the page: [ 29.342601] kasan: CONFIG_KASAN_INLINE enabled [ 29.347014] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 29.359934] Dumping ftrace buffer: [ 29.363473] (ftrace buffer empty) [ 29.367173] Modules linked in: [ 29.370485] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.112-g3fc4284 #25 [ 29.377487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.386837] task: ffffffff84217840 task.stack: ffffffff84200000 [ 29.392887] RIP: 0010:[] [] rb_insert_color+0x7b/0xcb0 [ 29.401516] RSP: 0018:ffff8801db207d18 EFLAGS: 00010002 [ 29.406957] RAX: 0000000000000008 RBX: 0000000000000000 RCX: 0000000000000000 [ 29.414223] RDX: 0000000000000001 RSI: ffff8801db219710 RDI: ffff8801db219c40 [ 29.421491] RBP: ffff8801db207d60 R08: ffffffff85808f08 R09: 0000000000000001 [ 29.428755] R10: 0000000000000000 R11: 1ffff1003b640f62 R12: ffff8800b40f7df8 [ 29.436022] R13: 0000000000000000 R14: ffff8801db219c40 R15: dffffc0000000000 [ 29.443288] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 29.451510] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.457391] CR2: 0000000020e71000 CR3: 00000001d0850000 CR4: 0000000000160670 [ 29.464658] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.471923] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.479182] Stack: [ 29.481329] ffffffff842bcb20 ffffffff842180b0 0000000000000000 ffff8801db207d70 [ 29.489369] ffff8801db219c40 dffffc0000000000 0000000000000000 ffff8801db219710 [ 29.497413] ffff8800b40f7e00 ffff8801db207db0 ffffffff81d22db7 ffff8801db219c58 [ 29.505454] Call Trace: [ 29.508025] [ 29.510084] [] timerqueue_add+0x157/0x2a0 [ 29.516184] [] enqueue_hrtimer+0x168/0x450 [ 29.522068] [] __hrtimer_run_queues+0x732/0xfe0 [ 29.528387] [] ? hrtimer_fixup_init+0x70/0x70 [ 29.534532] [] ? hrtimer_interrupt+0x131/0x440 [ 29.540764] [] hrtimer_interrupt+0x1a6/0x440 [ 29.546821] [] local_apic_timer_interrupt+0x6a/0xb0 [ 29.553495] [] smp_apic_timer_interrupt+0x76/0xa0 [ 29.559989] [] apic_timer_interrupt+0xa0/0xb0 [ 29.566124] [ 29.568190] [] ? native_safe_halt+0x6/0x10 [ 29.574379] [] default_idle+0x55/0x3c0 [ 29.579918] [] arch_cpu_idle+0xa/0x10 [ 29.585370] [] default_idle_call+0x48/0x70 [ 29.591257] [] cpu_startup_entry+0x605/0x820 [ 29.597319] [] ? call_cpuidle+0xe0/0xe0 [ 29.602947] [] rest_init+0x189/0x190 [ 29.608313] [] start_kernel+0x6b9/0x6ee [ 29.613944] [] ? thread_stack_cache_init+0xb/0xb [ 29.620350] [] ? early_idt_handler_array+0x120/0x120 [ 29.627102] [] ? early_idt_handler_array+0x120/0x120 [ 29.633852] [] x86_64_start_reservations+0x2a/0x2c [ 29.640436] [] x86_64_start_kernel+0x140/0x163 [ 29.646658] Code: 0f 85 06 0a 00 00 49 bf 00 00 00 00 00 fc ff df 49 8b 1c 24 f6 c3 01 0f 85 9a 01 00 00 48 8d 43 08 48 89 d9 48 89 c2 48 c1 ea 03 <42> 80 3c 3a 00 0f 85 94 09 00 00 4c 8b 6b 08 4d 39 e5 0f 84 b0 [ 29.674252] RIP [] rb_insert_color+0x7b/0xcb0 [ 29.680520] RSP [ 29.684140] ---[ end trace a19cdbb3f3b8a0b0 ]--- [ 29.688883] Kernel panic - not syncing: Fatal exception in interrupt 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: 0x0000000001426b70 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-g3fc4284 (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #25 SMP PREEMPT Sat Jan 20 10:39:32 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 1909285028 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 (40431K 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 [ 1.247852] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.249295] pid_max: default: 32768 minimum: 301 [ 1.250124] ACPI: Core revision 20150930 [ 1.321055] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.322480] Security Framework initialized [ 1.323060] SELinux: Initializing. [ 1.323721] AppArmor: AppArmor disabled by boot time parameter [ 1.324627] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.325565] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.329239] Initializing cgroup subsys io [ 1.329880] Initializing cgroup subsys freezer [ 1.330545] Initializing cgroup subsys hugetlb [ 1.331171] Initializing cgroup subsys debug [ 1.331955] CPU: Physical Processor ID: 0 [ 1.333736] mce: CPU supports 32 MCE banks [ 1.334574] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.335405] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.338909] Freeing SMP alternatives memory: 44K [ 1.348431] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.467065] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.468730] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.557357] x86: Booting SMP configuration: [ 1.558102] .... node #0, CPUs: #1 [ 1.558911] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.563656] x86: Booted up 1 node, 2 CPUs [ 1.564307] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.569021] devtmpfs: initialized [ 1.578591] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.580040] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.581799] xor: automatically using best checksumming function: [ 1.594728] kworker/u4:0 (21) used greatest stack depth: 27864 bytes left [ 1.677082] avx : 21376.400 MB/sec [ 1.678322] RTC time: 2:10:44, date: 01/22/18 [ 1.680616] NET: Registered protocol family 16 [ 1.681718] schedtune: init normalization constants... [ 1.682442] schedtune: no energy model data [ 1.683028] schedtune: disabled! [ 1.717377] cpuidle: using governor ladder [ 1.747137] cpuidle: using governor menu [ 1.748509] ACPI: bus type PCI registered [ 1.749093] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 1.751925] PCI: Using configuration type 1 for base access [ 1.756450] kworker/u4:0 (39) used greatest stack depth: 27544 bytes left [ 1.762668] kworker/u4:0 (43) used greatest stack depth: 27224 bytes left [ 2.187065] raid6: sse2x1 gen() 4622 MB/s [ 2.357063] raid6: sse2x1 xor() 2547 MB/s [ 2.527065] raid6: sse2x2 gen() 6946 MB/s [ 2.697056] raid6: sse2x2 xor() 3993 MB/s [ 2.867058] raid6: sse2x4 gen() 8542 MB/s [ 3.037051] raid6: sse2x4 xor() 5206 MB/s [ 3.207046] raid6: avx2x1 gen() 9232 MB/s [ 3.377045] raid6: avx2x2 gen() 14365 MB/s [ 3.547050] raid6: avx2x4 gen() 18894 MB/s [ 3.547850] raid6: using algorithm avx2x4 gen() 18894 MB/s [ 3.548652] raid6: using avx2x2 recovery algorithm [ 3.549968] ACPI: Added _OSI(Module Device) [ 3.550628] ACPI: Added _OSI(Processor Device) [ 3.551281] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.552063] ACPI: Added _OSI(Processor Aggregator Device) [ 3.562815] ACPI: Executed 2 blocks of module-level executable AML code [ 3.638802] ACPI: Interpreter enabled [ 3.639843] ACPI: (supports S0 S3 S4 S5) [ 3.640445] ACPI: Using IOAPIC for interrupt routing [ 3.641617] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.849387] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.850465] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 3.851772] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 3.852837] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.879073] PCI host bridge to bus 0000:00 [ 3.879818] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.880794] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.881738] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.882808] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 3.883951] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.924485] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.015151] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 4.021539] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 4.027724] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 4.033950] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 4.038081] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 4.051276] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.054695] vgaarb: loaded [ 4.057780] SCSI subsystem initialized [ 4.075193] ACPI: bus type USB registered [ 4.077981] usbcore: registered new interface driver usbfs [ 4.079437] usbcore: registered new interface driver hub [ 4.080586] usbcore: registered new device driver usb [ 4.082526] pps_core: LinuxPPS API ver. 1 registered [ 4.083481] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.084973] PTP clock support registered [ 4.087778] Advanced Linux Sound Architecture Driver Initialized. [ 4.089479] PCI: Using ACPI for IRQ routing [ 4.108385] NetLabel: Initializing [ 4.108968] NetLabel: domain hash size = 128 [ 4.109700] NetLabel: protocols = UNLABELED CIPSOv4 [ 4.110704] NetLabel: unlabeled traffic allowed by default [ 4.113181] amd_nb: Cannot enumerate AMD northbridges [ 4.114073] clocksource: Switched to clocksource kvm-clock [ 4.274275] pnp: PnP ACPI init [ 4.297815] pnp: PnP ACPI: found 7 devices [ 4.310919] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.312642] NET: Registered protocol family 2 [ 4.315677] TCP established hash table entries: 65536 (order: 7, 524288 bytes) [ 4.317819] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes) [ 4.325233] TCP: Hash tables configured (established 65536 bind 65536) [ 4.326564] UDP hash table entries: 4096 (order: 7, 655360 bytes) [ 4.328805] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) [ 4.331462] NET: Registered protocol family 1 [ 4.332206] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.333984] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.335325] software IO TLB [mem 0xbbffd000-0xbfffd000] (64MB) mapped at [ffff8800bbffd000-ffff8800bfffcfff] [ 4.337290] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 10737418240 ms ovfl timer [ 4.338532] hw unit of domain pp0-core 2^-0 Joules [ 4.339252] hw unit of domain package 2^-0 Joules [ 4.339949] hw unit of domain dram 2^-16 Joules [ 4.346257] Scanning for low memory corruption every 60 seconds [ 4.353978] audit: initializing netlink subsys (disabled) [ 4.355545] audit: type=2000 audit(1516587046.833:1): initialized [ 4.362691] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 4.495424] VFS: Disk quotas dquot_6.6.0 [ 4.497117] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.518680] fuse init (API version 7.23) [ 4.521871] 9p: Installing v9fs 9p2000 file system support [ 4.536117] async_tx: api initialized (async) [ 4.537974] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 4.539051] io scheduler noop registered [ 4.539629] io scheduler deadline registered [ 4.541996] io scheduler cfq registered (default) [ 4.551365] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 4.555949] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.557563] ACPI: Power Button [PWRF] [ 4.559931] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.561029] ACPI: Sleep Button [SLPF] [ 4.585034] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 4.585983] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.608431] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 4.609363] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.617745] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.640597] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.666824] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.692494] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.718029] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.726158] Non-volatile memory driver v1.3 [ 4.728505] Linux agpgart interface v0.103 [ 4.731724] [drm] Initialized drm 1.1.0 20060810 [ 4.830660] brd: module loaded [ 4.907165] loop: module loaded [ 4.931962] nbd: registered device at major 43 [ 5.075416] drbd: initialized. Version: 8.4.5 (api:1/proto:86-101) [ 5.077102] drbd: built-in [ 5.077853] drbd: registered as block device major 147 [ 5.095792] scsi host0: Virtio SCSI HBA [ 5.123074] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6