[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 20.222717] 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: [ 22.142532] random: sshd: uninitialized urandom read (32 bytes read, 34 bits of entropy available) [ 22.459775] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available) [ 23.403842] random: nonblocking pool is initialized Warning: Permanently added '10.128.0.37' (ECDSA) to the list of known hosts. 2018/06/02 06:52:09 parsed 1 programs 2018/06/02 06:52:09 executed programs: 0 [ 29.808473] IPVS: Creating netns size=2552 id=1 [ 29.970047] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 29.985150] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 30.059754] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 30.074080] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 30.148872] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 30.163094] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 30.178341] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 30.194576] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 30.909957] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 30.945896] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 31.423577] ================================================================== [ 31.430954] BUG: KASAN: use-after-free in l2tp_session_queue_purge+0xf4/0x100 [ 31.438198] Read of size 4 at addr ffff8801d6e00a00 by task syz-executor0/4193 [ 31.445525] [ 31.447131] CPU: 1 PID: 4193 Comm: syz-executor0 Not tainted 4.4.135-ge75204c #53 [ 31.454718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.464044] 0000000000000000 b50ca959bcc23620 ffff8800b952fc78 ffffffff81e0ed0d [ 31.472028] ffffea00075b8000 ffff8801d6e00a00 0000000000000000 ffff8801d6e00a00 [ 31.480012] ffffffff82f1a1e0 ffff8800b952fcb0 ffffffff81515946 ffff8801d6e00a00 [ 31.487989] Call Trace: [ 31.490559] [] dump_stack+0xc1/0x124 [ 31.495902] [] ? sock_release+0x1c0/0x1c0 [ 31.501683] [] print_address_description+0x6c/0x216 [ 31.508331] [] ? sock_release+0x1c0/0x1c0 [ 31.514107] [] kasan_report.cold.7+0x175/0x2f7 [ 31.520318] [] ? l2tp_session_queue_purge+0xf4/0x100 [ 31.527043] [] __asan_report_load4_noabort+0x14/0x20 [ 31.533767] [] l2tp_session_queue_purge+0xf4/0x100 [ 31.540318] [] ? sock_release+0x1c0/0x1c0 [ 31.546086] [] pppol2tp_release+0x1ff/0x310 [ 31.552026] [] sock_release+0x96/0x1c0 [ 31.557531] [] sock_close+0x16/0x20 [ 31.562776] [] __fput+0x235/0x6f0 [ 31.567851] [] ____fput+0x15/0x20 [ 31.572924] [] task_work_run+0x10f/0x190 [ 31.578607] [] exit_to_usermode_loop+0x13d/0x160 [ 31.584986] [] do_fast_syscall_32+0x620/0x8b0 [ 31.591102] [] sysenter_flags_fixed+0xd/0x17 [ 31.597129] [ 31.598728] Allocated by task 4193: [ 31.602321] [] save_stack_trace+0x26/0x50 [ 31.608210] [] save_stack+0x43/0xd0 [ 31.613573] [] kasan_kmalloc+0xc7/0xe0 [ 31.619196] [] __kmalloc+0x124/0x310 [ 31.624645] [] l2tp_session_create+0x39/0x1030 [ 31.630988] [] pppol2tp_connect+0x10f0/0x1910 [ 31.637217] [] SYSC_connect+0x1b8/0x300 [ 31.642945] [] SyS_connect+0x24/0x30 [ 31.648394] [] do_fast_syscall_32+0x326/0x8b0 [ 31.654624] [] sysenter_flags_fixed+0xd/0x17 [ 31.660771] [ 31.662377] Freed by task 4191: [ 31.665622] [] save_stack_trace+0x26/0x50 [ 31.671506] [] save_stack+0x43/0xd0 [ 31.676881] [] kasan_slab_free+0x72/0xc0 [ 31.682677] [] kfree+0xf4/0x310 [ 31.687690] [] l2tp_session_free+0x170/0x200 [ 31.693835] [] l2tp_tunnel_closeall+0x2b9/0x350 [ 31.700242] [] l2tp_udp_encap_destroy+0x8b/0xf0 [ 31.706651] [] udp_destroy_sock+0x118/0x1a0 [ 31.712708] [] sk_common_release+0x6d/0x300 [ 31.718765] [] udp_lib_close+0x15/0x20 [ 31.724410] [] inet_release+0xff/0x1d0 [ 31.730031] [] sock_release+0x96/0x1c0 [ 31.735654] [] sock_close+0x16/0x20 [ 31.741023] [] __fput+0x235/0x6f0 [ 31.746213] [] ____fput+0x15/0x20 [ 31.751401] [] task_work_run+0x10f/0x190 [ 31.757208] [] exit_to_usermode_loop+0x13d/0x160 [ 31.763703] [] do_fast_syscall_32+0x620/0x8b0 [ 31.769934] [] sysenter_flags_fixed+0xd/0x17 [ 31.776079] [ 31.777681] The buggy address belongs to the object at ffff8801d6e00a00 [ 31.777681] which belongs to the cache kmalloc-512 of size 512 [ 31.790303] The buggy address is located 0 bytes inside of [ 31.790303] 512-byte region [ffff8801d6e00a00, ffff8801d6e00c00) [ 31.801971] The buggy address belongs to the page: [ 31.823436] kasan: CONFIG_KASAN_INLINE enabled [ 31.827859] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 31.840763] Dumping ftrace buffer: [ 31.844287] (ftrace buffer empty) [ 31.847982] Modules linked in: [ 31.851287] CPU: 0 PID: 3850 Comm: syz-executor0 Not tainted 4.4.135-ge75204c #53 [ 31.858887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.868233] task: ffff8801c6ce8000 task.stack: ffff8801d8c20000 [ 31.874293] RIP: 0010:[] [] __lock_acquire+0x5f4/0x5270 [ 31.883001] RSP: 0018:ffff8801d8c278b0 EFLAGS: 00010006 [ 31.888439] RAX: 0000000000000000 RBX: 48000000a8ec8148 RCX: 1ffffffff02919ee [ 31.895697] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8148cf77 [ 31.902962] RBP: ffff8801d8c27a48 R08: 0000000000000001 R09: 0000000000000000 [ 31.910223] R10: ffffffff83a44860 R11: ffff8801c6ce8000 R12: 0000000000000000 [ 31.917484] R13: ffffffff8148cf6f R14: 0000000000000000 R15: 0000000000000000 [ 31.924747] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 31.932970] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 31.938841] CR2: 00000000ffcd6e80 CR3: 00000001ce425000 CR4: 00000000001606f0 [ 31.946110] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.953375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.960637] Stack: [ 31.962771] ffff8801c6ce8901 0000000000000001 ffff8801d8c27a70 0000000000000046 [ 31.970819] ffff8801d8c278c8 ffffffff849f4380 ffff8801d8c27900 ffffffff8122e8bb [ 31.978868] 0000000000000296 ffffffff849f47c0 ffff8801d087f598 dffffc0000000000 [ 31.986936] Call Trace: [ 31.989519] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 31.996358] [] ? debug_check_no_locks_freed+0x210/0x210 [ 32.003368] [] ? debug_check_no_locks_freed+0x210/0x210 [ 32.010378] [] ? vma_interval_tree_augment_rotate+0x180/0x1f0 [ 32.017912] [] lock_acquire+0x15e/0x450 [ 32.023526] [] ? unlink_anon_vmas+0x148/0x640 [ 32.029667] [] ? dump_page_badflags+0x57/0x70 [ 32.035806] [] ? dump_page_badflags+0x5f/0x70 [ 32.041945] [] ? dump_page_badflags+0x57/0x70 [ 32.048087] [] down_write+0x41/0xa0 [ 32.053359] [] ? unlink_anon_vmas+0x148/0x640 [ 32.059502] [] unlink_anon_vmas+0x148/0x640 [ 32.065468] [] free_pgtables+0x21d/0x330 [ 32.071177] [] exit_mmap+0x1d8/0x3a0 [ 32.076536] [] ? SyS_remap_file_pages+0x870/0x870 [ 32.083030] [] ? __might_sleep+0x90/0x1a0 [ 32.088819] [] mmput+0xf8/0x2d0 [ 32.093744] [] do_exit+0x8d8/0x26b0 [ 32.099017] [] ? do_signal+0x3fa/0x1d30 [ 32.104638] [] ? release_task.part.17+0x1200/0x1200 [ 32.111296] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 32.118218] [] do_group_exit+0x111/0x330 [ 32.123925] [] ? do_group_exit+0x330/0x330 [ 32.129800] [] SyS_exit_group+0x1d/0x20 [ 32.135414] [] do_fast_syscall_32+0x326/0x8b0 [ 32.141554] [] sysenter_flags_fixed+0xd/0x17 [ 32.147592] Code: 00 fc ff df 44 89 e0 49 8d 7c c5 08 48 89 f9 48 c1 e9 03 80 3c 11 00 0f 85 94 36 00 00 49 8b 5c c5 08 48 85 db 0f 84 21 22 00 00 ff 83 98 01 00 00 49 8d 83 d8 08 00 00 48 89 c2 48 89 44 24 [ 32.175221] RIP [] __lock_acquire+0x5f4/0x5270 [ 32.181589] RSP [ 32.185208] ---[ end trace 20381e71bb173d89 ]--- [ 32.189954] Kernel panic - not syncing: Fatal exception SeaBIOS (version 1.8.2-20180102_145157-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 256 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 0x000f2230: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x0000000003b5126e input_len: 0x00000000014cc0c9 output: 0x0000000001000000 output_len: 0x0000000004008a40 run_size: 0x0000000005752000 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 4.4.135-ge75204c (syzkaller@ci) (gcc version 8.0.1 20180413 (experimental) (GCC) ) #53 SMP PREEMPT Thu May 31 23:35:28 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 nopti [ 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 0x0000000000100000-0x00000000bfff2fff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfff3000-0x00000000bfffffff] 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] Kernel/User page tables isolation: disabled [ 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 = 0xbfff3 max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f22b0-0x000f22bf] mapped at [ffff8800000f22b0] [ 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 0x00000000000F2270 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFF3430 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFCF60 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFF3470 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFCF00 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFCF00 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFF65F0 00690D (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFF5D10 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFF5CE0 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] ACPI: SRAT 0x00000000BFFF4C30 0000C8 (v01 Google GOOGSRAT 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 2314015515 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 0x0000000000100000-0x00000000bfff2fff] [ 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 0xbfff3000-0xbfffffff] [ 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: 1935227 [ 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 nopti [ 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: 6579092K/7863876K available (41761K kernel code, 6302K rwdata, 9052K rodata, 1864K init, 23696K bss, 1284784K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 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 [ 1.194996] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.196150] pid_max: default: 32768 minimum: 301 [ 1.196875] ACPI: Core revision 20150930 [ 1.600111] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.601370] Security Framework initialized [ 1.602031] SELinux: Initializing. [ 1.602691] AppArmor: AppArmor disabled by boot time parameter [ 1.603665] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.604710] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.608297] Initializing cgroup subsys io [ 1.608921] Initializing cgroup subsys freezer [ 1.609599] Initializing cgroup subsys hugetlb [ 1.610237] Initializing cgroup subsys debug [ 1.610995] CPU: Physical Processor ID: 0 [ 1.612829] mce: CPU supports 32 MCE banks [ 1.613624] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.614522] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.615449] Spectre V2 : Mitigation: Full generic retpoline [ 1.618476] Freeing SMP alternatives memory: 48K [ 1.630774] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.744049] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.745775] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.834275] x86: Booting SMP configuration: [ 1.835015] .... node #0, CPUs: #1 [ 1.835872] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.840834] x86: Booted up 1 node, 2 CPUs [ 1.841490] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.845554] devtmpfs: initialized [ 1.855563] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.857351] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.859055] xor: automatically using best checksumming function: [ 1.871952] kworker/u4:0 (21) used greatest stack depth: 27424 bytes left [ 1.954053] avx : 21541.200 MB/sec [ 1.955524] RTC time: 6:52:17, date: 06/02/18 [ 1.958632] NET: Registered protocol family 16 [ 1.959820] schedtune: init normalization constants... [ 1.960704] schedtune: no energy model data [ 1.961474] schedtune: disabled! [ 1.994233] cpuidle: using governor ladder [ 2.024066] cpuidle: using governor menu [ 2.025302] ACPI: bus type PCI registered [ 2.026097] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 2.029070] PCI: Using configuration type 1 for base access [ 2.464006] raid6: sse2x1 gen() 4660 MB/s [ 2.633987] raid6: sse2x1 xor() 2546 MB/s [ 2.803977] raid6: sse2x2 gen() 6988 MB/s [ 2.973956] raid6: sse2x2 xor() 3995 MB/s [ 3.143945] raid6: sse2x4 gen() 8671 MB/s [ 3.313932] raid6: sse2x4 xor() 5308 MB/s [ 3.483918] raid6: avx2x1 gen() 9374 MB/s [ 3.653900] raid6: avx2x2 gen() 14431 MB/s [ 3.823883] raid6: avx2x4 gen() 18721 MB/s [ 3.824571] raid6: using algorithm avx2x4 gen() 18721 MB/s [ 3.825446] raid6: using avx2x2 recovery algorithm [ 3.826797] ACPI: Added _OSI(Module Device) [ 3.827439] ACPI: Added _OSI(Processor Device) [ 3.828051] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.828740] ACPI: Added _OSI(Processor Aggregator Device) [ 3.857985] ACPI: Executed 2 blocks of module-level executable AML code [ 4.770481] ACPI: Interpreter enabled [ 4.771507] ACPI: (supports S0 S3 S4 S5) [ 4.772081] ACPI: Using IOAPIC for interrupt routing [ 4.773259] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug