[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 20.107315] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) [?25l[?1c7[ ok 8[?25h[?0c. [ 21.068214] random: sshd: uninitialized urandom read (32 bytes read, 34 bits of entropy available) [ 21.306494] random: sshd: uninitialized urandom read (32 bytes read, 34 bits of entropy available) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 22.166369] random: sshd: uninitialized urandom read (32 bytes read, 88 bits of entropy available) [ 31.967899] random: sshd: uninitialized urandom read (32 bytes read, 98 bits of entropy available) Warning: Permanently added '10.128.0.52' (ECDSA) to the list of known hosts. [ 37.379590] random: sshd: uninitialized urandom read (32 bytes read, 104 bits of entropy available) executing program [ 37.472170] ================================================================== [ 37.479568] BUG: KASAN: use-after-free in ip6_xmit+0x1a2c/0x1a70 [ 37.485686] Read of size 8 at addr ffff8801ceb8b3d8 by task syzkaller326063/3740 [ 37.493189] [ 37.494791] CPU: 1 PID: 3740 Comm: syzkaller326063 Not tainted 4.4.120-gd63fdf6 #28 [ 37.502555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.511879] 0000000000000000 1eacb362e7def1c7 ffff8800ada877e0 ffffffff81d0408d [ 37.519855] ffffea00073ae2c0 ffff8801ceb8b3d8 0000000000000000 ffff8801ceb8b3d8 [ 37.527876] 0000000000000040 ffff8800ada87818 ffffffff814fe143 ffff8801ceb8b3d8 [ 37.535835] Call Trace: [ 37.538393] [] dump_stack+0xc1/0x124 [ 37.543727] [] print_address_description+0x73/0x260 [ 37.550360] [] kasan_report+0x285/0x370 [ 37.555958] [] ? ip6_xmit+0x1a2c/0x1a70 [ 37.561561] [] __asan_report_load8_noabort+0x14/0x20 [ 37.568283] [] ip6_xmit+0x1a2c/0x1a70 [ 37.573701] [] ? kfree+0xfc/0x300 [ 37.578774] [] ? pskb_expand_head+0x28b/0x980 [ 37.584887] [] ? l2tp_xmit_skb+0xa5e/0xea0 [ 37.590739] [] ? ip6_finish_output2+0x1c60/0x1c60 [ 37.597199] [] ? __lock_is_held+0xa1/0xf0 [ 37.602968] [] ? ipv4_dst_check+0x111/0x160 [ 37.608909] [] ? __sk_dst_check+0x148/0x260 [ 37.614848] [] inet6_csk_xmit+0x246/0x480 [ 37.620623] [] ? inet6_csk_xmit+0x100/0x480 [ 37.626648] [] ? inet6_csk_update_pmtu+0x160/0x160 [ 37.633196] [] ? udp6_set_csum+0x336/0xa80 [ 37.639050] [] l2tp_xmit_skb+0xc2f/0xea0 [ 37.644729] [] pppol2tp_sendmsg+0x584/0x7f0 [ 37.650671] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 37.657133] [] ? pppol2tp_release+0x310/0x310 [ 37.663261] [] sock_sendmsg+0xca/0x110 [ 37.668769] [] SYSC_sendto+0x2c8/0x340 [ 37.674279] [] ? SYSC_connect+0x310/0x310 [ 37.680047] [] ? lock_sock_nested+0xdc/0x120 [ 37.686076] [] ? ip6_datagram_connect+0x3a/0x50 [ 37.692362] [] ? inet_dgram_connect+0x172/0x1f0 [ 37.698648] [] ? SYSC_connect+0x212/0x310 [ 37.704415] [] ? retint_user+0x18/0x3c [ 37.709920] [] SyS_sendto+0x40/0x50 [ 37.715164] [] entry_SYSCALL_64_fastpath+0x1c/0x98 [ 37.721706] [ 37.723302] Allocated by task 3715: [ 37.726894] [] save_stack_trace+0x26/0x50 [ 37.732805] [] save_stack+0x43/0xd0 [ 37.738876] [] kasan_kmalloc+0xad/0xe0 [ 37.744498] [] kasan_slab_alloc+0x12/0x20 [ 37.750383] [] kmem_cache_alloc+0xba/0x290 [ 37.756359] [] dst_alloc+0x11f/0x1a0 [ 37.761809] [] rt_dst_alloc+0x78/0x430 [ 37.767435] [] __ip_route_output_key_hash+0xa4e/0x2390 [ 37.774444] [] __ip4_datagram_connect+0xa15/0x1150 [ 37.781130] [] __ip6_datagram_connect+0x4d9/0x1950 [ 37.787796] [] ip6_datagram_connect+0x2f/0x50 [ 37.794024] [] inet_dgram_connect+0x16b/0x1f0 [ 37.800266] [] SYSC_connect+0x1b6/0x310 [ 37.805987] [] SyS_connect+0x24/0x30 [ 37.811438] [] entry_SYSCALL_64_fastpath+0x1c/0x98 [ 37.818108] [ 37.819707] Freed by task 14: [ 37.822782] [] save_stack_trace+0x26/0x50 [ 37.828666] [] save_stack+0x43/0xd0 [ 37.834034] [] kasan_slab_free+0x72/0xc0 [ 37.839831] [] kmem_cache_free+0xc7/0x320 [ 37.845716] [] dst_destroy+0x20e/0x330 [ 37.851342] [] dst_destroy_rcu+0x15/0x40 [ 37.857137] [] rcu_process_callbacks+0x7f4/0x14a0 [ 37.863713] [] __do_softirq+0x227/0xa38 [ 37.869428] [ 37.871028] The buggy address belongs to the object at ffff8801ceb8b3c0 [ 37.871028] which belongs to the cache ip_dst_cache of size 208 [ 37.883740] The buggy address is located 24 bytes inside of [ 37.883740] 208-byte region [ffff8801ceb8b3c0, ffff8801ceb8b490) [ 37.895496] The buggy address belongs to the page: [ 37.911525] kasan: CONFIG_KASAN_INLINE enabled [ 37.915935] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 37.928764] Dumping ftrace buffer: [ 37.932281] (ftrace buffer empty) [ 37.935960] Modules linked in: [ 37.939238] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.120-gd63fdf6 #28 [ 37.946216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.955803] task: ffffffff84217840 task.stack: ffffffff84200000 [ 37.961836] RIP: 0010:[] [] timerqueue_add+0xb8/0x2a0 [ 37.970331] RSP: 0018:ffff8801db207d70 EFLAGS: 00010806 [ 37.975753] RAX: ffffed003b64338b RBX: ffff8801db219c40 RCX: ffffffff81d218ac [ 37.982995] RDX: 1d1a89b13fffffe7 RSI: ffff8801db219c40 RDI: e8d44d89ffffff39 [ 37.990234] RBP: ffff8801db207db0 R08: ffffffff8580af08 R09: 0000000000000001 [ 37.997475] R10: 0000000000000000 R11: 1ffff1003b640f62 R12: dffffc0000000000 [ 38.004713] R13: e8d44d89ffffff21 R14: 0000000886204480 R15: ffffffff814909c9 [ 38.011953] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 38.020153] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.026017] CR2: 000055bb4faa7100 CR3: 00000000b482e000 CR4: 0000000000160670 [ 38.033263] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.040504] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.047741] Stack: [ 38.049859] ffff8801db219c58 ffff8801db219710 ffffed003b64338b ffff8801db219700 [ 38.057827] ffff8801db219c40 ffff8801db219640 0000000000000001 0000000000000000 [ 38.065818] ffff8801db207de8 ffffffff812abc88 ffff8801db219c40 0000000000000001 [ 38.073827] Call Trace: [ 38.076389] [ 38.078435] [] enqueue_hrtimer+0x168/0x450 [ 38.084596] [] __hrtimer_run_queues+0x732/0xfe0 [ 38.090890] [] ? hrtimer_fixup_init+0x70/0x70 [ 38.097011] [] ? hrtimer_interrupt+0x131/0x440 [ 38.103211] [] hrtimer_interrupt+0x1a6/0x440 [ 38.109242] [] local_apic_timer_interrupt+0x6a/0xb0 [ 38.115891] [] smp_apic_timer_interrupt+0x76/0xa0 [ 38.122350] [] apic_timer_interrupt+0xa0/0xb0 [ 38.128459] [ 38.130495] [] ? native_safe_halt+0x6/0x10 [ 38.136643] [] default_idle+0x55/0x3c0 [ 38.142148] [] arch_cpu_idle+0xa/0x10 [ 38.147569] [] default_idle_call+0x48/0x70 [ 38.153423] [] cpu_startup_entry+0x5fd/0x8f0 [ 38.159451] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 38.166348] [] ? call_cpuidle+0xe0/0xe0 [ 38.171946] [] rest_init+0x189/0x190 [ 38.177280] [] start_kernel+0x6b9/0x6ee [ 38.182881] [] ? thread_stack_cache_init+0xb/0xb [ 38.189256] [] ? early_idt_handler_array+0x120/0x120 [ 38.195989] [] ? early_idt_handler_array+0x120/0x120 [ 38.202715] [] x86_64_start_reservations+0x2a/0x2c [ 38.209276] [] x86_64_start_kernel+0x140/0x163 [ 38.215473] Code: 00 00 4d 8b 2f 4d 85 ed 74 3d e8 a4 f4 63 ff 48 8b 45 d0 80 38 00 0f 85 b0 01 00 00 49 8d 7d 18 4c 8b 73 18 48 89 fa 48 c1 ea 03 <42> 80 3c 22 00 0f 85 d2 01 00 00 4d 3b 75 18 7c a3 e8 72 f4 63 [ 38.242020] RIP [] timerqueue_add+0xb8/0x2a0 [ 38.248167] RSP [ 38.251766] ---[ end trace 7c54d02a381e6446 ]--- [ 38.256490] Kernel panic - not syncing: Fatal exception in interrupt SeaBIOS (version 1.8.2-20171120_144221-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 0x000f2360: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000037cb26e input_len: 0x0000000001423b2c output: 0x0000000001000000 output_len: 0x0000000003bdaa40 run_size: 0x0000000005310000 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 4.4.120-gd63fdf6 (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #28 SMP PREEMPT Tue Mar 6 13:16:06 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 0x0000000000100000-0x00000000bfff2fff] 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] 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 0x000f23e0-0x000f23ef] mapped at [ffff8800000f23e0] [ 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 0x00000000000F23A0 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 2379783146 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 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: 6581404K/7863876K available (40422K kernel code, 6136K rwdata, 8808K rodata, 1848K init, 23616K bss, 1282472K 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 [ 1.133815] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.134965] pid_max: default: 32768 minimum: 301 [ 1.135672] ACPI: Core revision 20150930 [ 1.554124] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.556072] Security Framework initialized [ 1.556660] SELinux: Initializing. [ 1.557313] AppArmor: AppArmor disabled by boot time parameter [ 1.558250] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.559195] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.562868] Initializing cgroup subsys io [ 1.563556] Initializing cgroup subsys freezer [ 1.564200] Initializing cgroup subsys hugetlb [ 1.564823] Initializing cgroup subsys debug [ 1.565625] CPU: Physical Processor ID: 0 [ 1.567352] mce: CPU supports 32 MCE banks [ 1.568098] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.568924] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.569827] Spectre V2 : Vulnerable: Minimal generic ASM retpoline [ 1.572942] Freeing SMP alternatives memory: 44K [ 1.582647] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.703149] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.704700] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.793409] x86: Booting SMP configuration: [ 1.794114] .... node #0, CPUs: #1 [ 1.794907] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.799611] x86: Booted up 1 node, 2 CPUs [ 1.800201] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.804866] devtmpfs: initialized [ 1.814401] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.815797] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.817451] xor: automatically using best checksumming function: [ 1.830868] kworker/u4:0 (21) used greatest stack depth: 27944 bytes left [ 1.913153] avx : 21665.200 MB/sec [ 1.915004] RTC time: 12:34:39, date: 03/11/18 [ 1.917405] NET: Registered protocol family 16 [ 1.918516] schedtune: init normalization constants... [ 1.919215] schedtune: no energy model data [ 1.919790] schedtune: disabled! [ 1.953362] cpuidle: using governor ladder [ 1.983210] cpuidle: using governor menu [ 1.984489] ACPI: bus type PCI registered [ 1.985063] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 1.987879] PCI: Using configuration type 1 for base access [ 1.999404] kworker/u4:0 (42) used greatest stack depth: 27448 bytes left [ 2.423132] raid6: sse2x1 gen() 4674 MB/s [ 2.593093] raid6: sse2x1 xor() 2641 MB/s [ 2.763065] raid6: sse2x2 gen() 7583 MB/s [ 2.933048] raid6: sse2x2 xor() 4348 MB/s [ 3.103029] raid6: sse2x4 gen() 9879 MB/s [ 3.273017] raid6: sse2x4 xor() 5692 MB/s [ 3.442996] raid6: avx2x1 gen() 9444 MB/s [ 3.612982] raid6: avx2x2 gen() 14719 MB/s [ 3.782961] raid6: avx2x4 gen() 19377 MB/s [ 3.783619] raid6: using algorithm avx2x4 gen() 19377 MB/s [ 3.784387] raid6: using avx2x2 recovery algorithm [ 3.785698] ACPI: Added _OSI(Module Device) [ 3.786310] ACPI: Added _OSI(Processor Device) [ 3.786922] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.787579] ACPI: Added _OSI(Processor Aggregator Device) [ 3.813075] ACPI: Executed 2 blocks of module-level executable AML code [ 4.647431] ACPI: Interpreter enabled [ 4.648454] ACPI: (supports S0 S3 S4 S5) [ 4.649002] ACPI: Using IOAPIC for interrupt routing [ 4.650180] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug