[ 16.843506] 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: [ 22.432080] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 22.814555] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 23.673754] random: sshd: uninitialized urandom read (32 bytes read, 102 bits of entropy available) [ 23.871751] random: sshd: uninitialized urandom read (32 bytes read, 108 bits of entropy available) Warning: Permanently added '10.128.15.231' (ECDSA) to the list of known hosts. [ 29.261020] random: sshd: uninitialized urandom read (32 bytes read, 114 bits of entropy available) executing program [ 29.358771] ================================================================== [ 29.366197] BUG: KASAN: use-after-free in __lock_acquire+0x387e/0x4b50 [ 29.372831] Read of size 8 at addr ffff8800b42fcab8 by task syzkaller211337/3335 [ 29.380333] [ 29.381937] CPU: 1 PID: 3335 Comm: syzkaller211337 Not tainted 4.4.111-g7902639 #25 [ 29.389703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.399030] 0000000000000000 092fcc29c48c0e91 ffff8800b5377580 ffffffff81d0509d [ 29.407005] ffffea0002d0bf00 ffff8800b42fcab8 0000000000000000 ffff8800b42fcab8 [ 29.414968] 0000000000000000 ffff8800b53775b8 ffffffff814fd433 ffff8800b42fcab8 [ 29.422974] Call Trace: [ 29.425552] [] dump_stack+0xc1/0x124 [ 29.430884] [] print_address_description+0x73/0x260 [ 29.437532] [] kasan_report+0x285/0x370 [ 29.443125] [] ? __lock_acquire+0x387e/0x4b50 [ 29.449245] [] __asan_report_load8_noabort+0x14/0x20 [ 29.455964] [] __lock_acquire+0x387e/0x4b50 [ 29.461898] [] ? __lock_acquire+0xb5f/0x4b50 [ 29.467922] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 29.474901] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 29.481907] [] ? mark_held_locks+0xaf/0x100 [ 29.487847] [] lock_acquire+0x15e/0x460 [ 29.493449] [] ? remove_wait_queue+0x14/0x40 [ 29.499486] [] _raw_spin_lock_irqsave+0x4e/0x70 [ 29.505773] [] ? remove_wait_queue+0x14/0x40 [ 29.511796] [] remove_wait_queue+0x14/0x40 [ 29.517654] [] ep_unregister_pollwait.isra.6+0xa8/0x220 [ 29.524633] [] ? ep_unregister_pollwait.isra.6+0x114/0x220 [ 29.531877] [] ? ep_free+0x1c0/0x1c0 [ 29.537216] [] ep_free+0x93/0x1c0 [ 29.542284] [] ? ep_free+0x1c0/0x1c0 [ 29.547615] [] ep_eventpoll_release+0x44/0x60 [ 29.553728] [] __fput+0x233/0x6d0 [ 29.558799] [] ____fput+0x15/0x20 [ 29.563875] [] task_work_run+0x104/0x180 [ 29.569560] [] do_exit+0x871/0x2a20 [ 29.574804] [] ? release_task+0x1240/0x1240 [ 29.580757] [] ? drop_futex_key_refs.isra.10+0x6c/0xe0 [ 29.587649] [] ? recalc_sigpending+0x76/0xa0 [ 29.593693] [] do_group_exit+0x108/0x320 [ 29.599380] [] get_signal+0x565/0x1660 [ 29.604896] [] ? binder_ioctl+0x302/0x12e0 [ 29.610759] [] do_signal+0x8b/0x1d40 [ 29.616101] [] ? trace_hardirqs_on+0xd/0x10 [ 29.622835] [] ? setup_sigcontext+0x780/0x780 [ 29.628954] [] ? binder_ioctl_write_read.isra.55+0xbc0/0xbc0 [ 29.636369] [] ? do_vfs_ioctl+0x468/0xee0 [ 29.642135] [] ? SyS_futex+0x210/0x2c0 [ 29.647658] [] ? exit_to_usermode_loop+0xec/0x170 [ 29.654127] [] exit_to_usermode_loop+0x122/0x170 [ 29.660499] [] syscall_return_slowpath+0x1b5/0x1f0 [ 29.667049] [] int_ret_from_sys_call+0x25/0xa3 [ 29.673257] [ 29.674868] Allocated by task 3335: [ 29.678461] [] save_stack_trace+0x26/0x50 [ 29.684357] [] save_stack+0x43/0xd0 [ 29.689727] [] kasan_kmalloc+0xad/0xe0 [ 29.695343] [] kmem_cache_alloc_trace+0x100/0x2b0 [ 29.701923] [] binder_get_thread+0x181/0x7a0 [ 29.708084] [] binder_poll+0x4a/0x210 [ 29.713615] [] SyS_epoll_ctl+0x10b1/0x2050 [ 29.719588] [] entry_SYSCALL_64_fastpath+0x16/0x92 [ 29.726255] [ 29.727850] Freed by task 3335: [ 29.731093] [] save_stack_trace+0x26/0x50 [ 29.736981] [] save_stack+0x43/0xd0 [ 29.742341] [] kasan_slab_free+0x72/0xc0 [ 29.748132] [] kfree+0xfc/0x300 [ 29.753153] [] binder_thread_dec_tmpref+0x1c1/0x250 [ 29.759907] [] binder_thread_release+0x27d/0x540 [ 29.766395] [] binder_ioctl+0xb94/0x12e0 [ 29.772190] [] do_vfs_ioctl+0x7aa/0xee0 [ 29.777909] [] SyS_ioctl+0x8f/0xc0 [ 29.783187] [] entry_SYSCALL_64_fastpath+0x16/0x92 [ 29.789853] [ 29.791453] The buggy address belongs to the object at ffff8800b42fca00 [ 29.791453] which belongs to the cache kmalloc-512 of size 512 [ 29.804094] The buggy address is located 184 bytes inside of [ 29.804094] 512-byte region [ffff8800b42fca00, ffff8800b42fcc00) [ 29.815945] The buggy address belongs to the page: [ 30.195492] BUG: unable to handle kernel NULL pointer dereference at 0000000000000062 [ 30.203949] IP: [] str__compaction__trace_system_name+0x56b/0xfa0 [ 30.211896] PGD 0 [ 30.214163] Oops: 0002 [#1] PREEMPT SMP KASAN [ 30.219141] Dumping ftrace buffer: [ 30.222669] (ftrace buffer empty) [ 30.226369] Modules linked in: [ 30.229675] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.111-g7902639 #25 [ 30.236678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.246032] task: ffffffff84217840 task.stack: ffffffff84200000 [ 30.252089] RIP: 0010:[] [] str__compaction__trace_system_name+0x56b/0xfa0 [ 30.262474] RSP: 0018:ffff8801db207d00 EFLAGS: 00010206 [ 30.267917] RAX: ffffffff838a8360 RBX: ffff8801db207d50 RCX: ffffffff8129fe5b [ 30.275185] RDX: 0000000000000100 RSI: ffffffff842bcb20 RDI: ffffffff8129fe6b [ 30.282457] RBP: ffff8801db207dd8 R08: 0000000000000001 R09: ffffffff850ed1d0 [ 30.289807] R10: 0000000000000000 R11: 1ffff1003b640f6c R12: 1ffff1003b640fa6 [ 30.297076] R13: ffff8800b4191030 R14: 0000000000000101 R15: ffff8801db207dd8 [ 30.304349] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 30.312582] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.318469] CR2: 0000000000000062 CR3: 00000000b5ff8000 CR4: 0000000000160670 [ 30.325738] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.333020] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.340288] Stack: [ 30.342433] ffffffff838a8360 ffffffff8129fdbc 0000000000000000 0000000000000000 [ 30.350470] 0000000000000000 ffffffff838a8360 0000000041b58ab3 ffffffff83fa8b49 [ 30.358493] ffffffff8129fce0 ffffffff842180b0 ffff8801db207d50 ffffffff851bbb20 [ 30.366526] Call Trace: [ 30.369095] [ 30.371153] [] ? call_timer_fn+0xdc/0x860 [ 30.377255] [] ? process_timeout+0x20/0x20 [ 30.383146] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 30.389473] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 30.396322] [] run_timer_softirq+0x604/0xbb0 [ 30.402393] [] ? msleep+0xe0/0xe0 [ 30.407507] [] __do_softirq+0x24d/0xa59 [ 30.413149] [] irq_exit+0x119/0x140 [ 30.418441] [] smp_apic_timer_interrupt+0x7b/0xa0 [ 30.424950] [] apic_timer_interrupt+0xa0/0xb0 [ 30.431091] [ 30.433170] [] ? native_safe_halt+0x6/0x10 [ 30.439369] [] default_idle+0x55/0x3c0 [ 30.444916] [] arch_cpu_idle+0xa/0x10 [ 30.450490] [] default_idle_call+0x48/0x70 [ 30.456386] [] cpu_startup_entry+0x605/0x820 [ 30.462461] [] ? call_cpuidle+0xe0/0xe0 [ 30.468102] [] rest_init+0x189/0x190 [ 30.473484] [] start_kernel+0x6b9/0x6ee [ 30.479122] [] ? thread_stack_cache_init+0xb/0xb [ 30.485539] [] ? early_idt_handler_array+0x120/0x120 [ 30.492312] [] ? early_idt_handler_array+0x120/0x120 [ 30.499082] [] x86_64_start_reservations+0x2a/0x2c [ 30.505699] [] x86_64_start_kernel+0x140/0x163 [ 30.511932] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 56 4d 5f 42 55 47 5f 4f 4e 5f 50 <41> 47 45 28 50 61 67 65 53 6c 61 62 28 70 61 67 65 29 29 00 00 [ 30.539180] RIP [] str__compaction__trace_system_name+0x56b/0xfa0 [ 30.547188] RSP [ 30.550805] CR2: 0000000000000062 [ 30.554277] ---[ end trace 3ee9b0969b682855 ]--- [ 30.559022] 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: 0x00000000039c526e input_len: 0x000000000142691e 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 4.4.111-g7902639 (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #25 SMP PREEMPT Fri Jan 12 17:48:10 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 1574999223 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 (40429K 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 [ 1.243678] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.244822] pid_max: default: 32768 minimum: 301 [ 1.245557] ACPI: Core revision 20150930 [ 1.318790] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.320060] Security Framework initialized [ 1.320645] SELinux: Initializing. [ 1.321291] AppArmor: AppArmor disabled by boot time parameter [ 1.322212] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.323228] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.327057] Initializing cgroup subsys io [ 1.327739] Initializing cgroup subsys freezer [ 1.328412] Initializing cgroup subsys hugetlb [ 1.329036] Initializing cgroup subsys debug [ 1.329833] CPU: Physical Processor ID: 0 [ 1.331566] mce: CPU supports 32 MCE banks [ 1.332291] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.333211] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.336160] Freeing SMP alternatives memory: 44K [ 1.344824] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.462988] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.464436] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.553247] x86: Booting SMP configuration: [ 1.553943] .... node #0, CPUs: #1 [ 1.554726] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.559375] x86: Booted up 1 node, 2 CPUs [ 1.559980] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.564818] devtmpfs: initialized [ 1.574512] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.575960] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.577597] xor: automatically using best checksumming function: [ 1.590543] kworker/u4:0 (21) used greatest stack depth: 27864 bytes left [ 1.672970] avx : 21776.400 MB/sec [ 1.674168] RTC time: 20:24:38, date: 01/12/18 [ 1.676462] NET: Registered protocol family 16 [ 1.677550] schedtune: init normalization constants... [ 1.678249] schedtune: no energy model data [ 1.678823] schedtune: disabled! [ 1.713290] cpuidle: using governor ladder [ 1.743032] cpuidle: using governor menu [ 1.744376] ACPI: bus type PCI registered [ 1.744935] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 1.747816] PCI: Using configuration type 1 for base access [ 1.755374] kworker/u4:1 (47) used greatest stack depth: 27224 bytes left [ 1.980170] kworker/u4:2 (473) used greatest stack depth: 26984 bytes left [ 2.182934] raid6: sse2x1 gen() 4626 MB/s [ 2.352870] raid6: sse2x1 xor() 2473 MB/s [ 2.522846] raid6: sse2x2 gen() 7458 MB/s [ 2.692821] raid6: sse2x2 xor() 4253 MB/s [ 2.862794] raid6: sse2x4 gen() 9781 MB/s [ 3.032768] raid6: sse2x4 xor() 5430 MB/s [ 3.202746] raid6: avx2x1 gen() 9374 MB/s [ 3.372710] raid6: avx2x2 gen() 14594 MB/s [ 3.542687] raid6: avx2x4 gen() 19033 MB/s [ 3.543414] raid6: using algorithm avx2x4 gen() 19033 MB/s [ 3.544156] raid6: using avx2x2 recovery algorithm [ 3.545464] ACPI: Added _OSI(Module Device) [ 3.546057] ACPI: Added _OSI(Processor Device) [ 3.546665] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.547327] ACPI: Added _OSI(Processor Aggregator Device) [ 3.557825] ACPI: Executed 2 blocks of module-level executable AML code [ 3.634613] ACPI: Interpreter enabled [ 3.635581] ACPI: (supports S0 S3 S4 S5) [ 3.636126] ACPI: Using IOAPIC for interrupt routing [ 3.637240] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.849318] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.850352] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 3.851685] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 3.852716] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.879230] PCI host bridge to bus 0000:00 [ 3.879901] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.880846] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.881786] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.882822] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 3.883860] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.919445] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.000848] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 4.007009] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 4.012950] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 4.018623] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 4.022275] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 4.037063] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.040534] vgaarb: loaded [ 4.043701] SCSI subsystem initialized [ 4.054472] ACPI: bus type USB registered [ 4.056155] usbcore: registered new interface driver usbfs [ 4.057456] usbcore: registered new interface driver hub [ 4.058454] usbcore: registered new device driver usb [ 4.060360] pps_core: LinuxPPS API ver. 1 registered [ 4.061354] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.063028] PTP clock support registered [ 4.065806] Advanced Linux Sound Architecture Driver Initialized. [ 4.067438] PCI: Using ACPI for IRQ routing [ 4.075288] NetLabel: Initializing [ 4.075888] NetLabel: domain hash size = 128 [ 4.076508] NetLabel: protocols = UNLABELED CIPSOv4 [ 4.077538] NetLabel: unlabeled traffic allowed by default [ 4.080079] amd_nb: Cannot enumerate AMD northbridges [ 4.081001] clocksource: Switched to clocksource kvm-clock [ 4.243469] pnp: PnP ACPI init [ 4.266471] pnp: PnP ACPI: found 7 devices [ 4.279907] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.281933] NET: Registered protocol family 2 [ 4.284534] TCP established hash table entries: 65536 (order: 7, 524288 bytes) [ 4.286083] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes) [ 4.293632] TCP: Hash tables configured (established 65536 bind 65536) [ 4.294883] UDP hash table entries: 4096 (order: 7, 655360 bytes) [ 4.297114] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) [ 4.299735] NET: Registered protocol family 1 [ 4.300521] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.303481] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.304372] software IO TLB [mem 0xbbffd000-0xbfffd000] (64MB) mapped at [ffff8800bbffd000-ffff8800bfffcfff] [ 4.306306] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 10737418240 ms ovfl timer [ 4.307524] hw unit of domain pp0-core 2^-0 Joules [ 4.308175] hw unit of domain package 2^-0 Joules [ 4.308815] hw unit of domain dram 2^-16 Joules [ 4.314681] Scanning for low memory corruption every 60 seconds [ 4.323526] audit: initializing netlink subsys (disabled) [ 4.324578] audit: type=2000 audit(1515788681.195:1): initialized [ 4.332539] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 4.468944] VFS: Disk quotas dquot_6.6.0 [ 4.470467] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.494048] fuse init (API version 7.23) [ 4.497388] 9p: Installing v9fs 9p2000 file system support [ 4.512285] async_tx: api initialized (async) [ 4.514069] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 4.515160] io scheduler noop registered [ 4.515714] io scheduler deadline registered [ 4.518147] io scheduler cfq registered (default) [ 4.528341] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 4.531846] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.532929] ACPI: Power Button [PWRF] [ 4.534641] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.535716] ACPI: Sleep Button [SLPF] [ 4.561397] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 4.562331] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.583707] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 4.584613] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.592199] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.615347] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.640342] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.665725] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.691321] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.699782] Non-volatile memory driver v1.3 [ 4.702022] Linux agpgart interface v0.103 [ 4.705318] [drm] Initialized drm 1.1.0 20060810 [ 4.805331] brd: module loaded [ 4.845757] loop: module loaded [ 4.889304] nbd: registered device at major 43 [ 5.037305] drbd: initialized. Version: 8.4.5 (api:1/proto:86-101) [ 5.038633] drbd: built-in [ 5.039308] drbd: registered as block device major 147 [ 5.065730] scsi host0: Virtio SCSI HBA [ 5.102162] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.301299] tsc: Refined TSC clocksource calibration: 2299.795 MHz [ 5.302652] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x21267368566, max_idle_ns: 440795216805 ns [ 5.772013] st: Version 20101219, fixed bufsize 32768, s/g segs 256 [ 5.773869] osst :I: Tape driver with OnStream support version 0.99.4 [ 5.773869] osst :I: $Id: osst.c,v 1.73 2005/01/01 21:13:34 wriede Exp $ [ 5.781788] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 5.783311] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 5.783613] SCSI Media Changer driver v0.25 [ 5.786326] tun: Universal TUN/TAP device driver, 1.6 [ 5.786329] tun: (C) 1999-2004 Max Krasnyansky [ 5.798514] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 5.804743] sd 0:0:1:0: [sda] Write Protect is off