[ 15.729756] 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: [ 20.746623] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 21.116323] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 21.967173] random: sshd: uninitialized urandom read (32 bytes read, 101 bits of entropy available) [ 22.142212] random: sshd: uninitialized urandom read (32 bytes read, 105 bits of entropy available) Warning: Permanently added '10.128.0.39' (ECDSA) to the list of known hosts. [ 27.556782] random: sshd: uninitialized urandom read (32 bytes read, 113 bits of entropy available) executing program [ 27.658469] ================================================================== [ 27.665870] BUG: KASAN: use-after-free in __lock_acquire+0x387e/0x4b50 [ 27.672510] Read of size 8 at addr ffff8800b4821738 by task syzkaller084794/3322 [ 27.680006] [ 27.681600] CPU: 0 PID: 3322 Comm: syzkaller084794 Not tainted 4.4.111-g3301b55 #17 [ 27.689356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.698678] 0000000000000000 481ccd75ed0821b5 ffff8800b477f830 ffffffff81d0509d [ 27.706635] ffffea0002d20800 ffff8800b4821738 0000000000000000 ffff8800b4821738 [ 27.714588] 0000000000000000 ffff8800b477f868 ffffffff814fd433 ffff8800b4821738 [ 27.722540] Call Trace: [ 27.725097] [] dump_stack+0xc1/0x124 [ 27.730435] [] print_address_description+0x73/0x260 [ 27.737074] [] kasan_report+0x285/0x370 [ 27.742665] [] ? __lock_acquire+0x387e/0x4b50 [ 27.748779] [] __asan_report_load8_noabort+0x14/0x20 [ 27.755502] [] __lock_acquire+0x387e/0x4b50 [ 27.761441] [] ? __lock_acquire+0xb5f/0x4b50 [ 27.767478] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 27.774456] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 27.781435] [] ? __lock_is_held+0xa1/0xf0 [ 27.787200] [] lock_acquire+0x15e/0x460 [ 27.792793] [] ? remove_wait_queue+0x14/0x40 [ 27.798831] [] _raw_spin_lock_irqsave+0x4e/0x70 [ 27.805121] [] ? remove_wait_queue+0x14/0x40 [ 27.811144] [] remove_wait_queue+0x14/0x40 [ 27.816995] [] ep_unregister_pollwait.isra.6+0xa8/0x220 [ 27.823972] [] ? ep_unregister_pollwait.isra.6+0x114/0x220 [ 27.831215] [] ep_remove+0x41/0x290 [ 27.836458] [] eventpoll_release_file+0xc5/0x140 [ 27.842834] [] __fput+0x521/0x6d0 [ 27.847903] [] ____fput+0x15/0x20 [ 27.852971] [] task_work_run+0x104/0x180 [ 27.858652] [] do_exit+0x871/0x2a20 [ 27.863907] [] ? handle_mm_fault+0x192d/0x3190 [ 27.870104] [] ? handle_mm_fault+0x3f2/0x3190 [ 27.876215] [] ? release_task+0x1240/0x1240 [ 27.882151] [] do_group_exit+0x108/0x320 [ 27.887827] [] SyS_exit_group+0x1d/0x20 [ 27.893416] [] ? do_group_exit+0x320/0x320 [ 27.899267] [] do_fast_syscall_32+0x314/0x890 [ 27.905383] [] sysenter_flags_fixed+0xd/0x17 [ 27.911404] [ 27.912997] Allocated by task 3322: [ 27.916584] [] save_stack_trace+0x26/0x50 [ 27.922461] [] save_stack+0x43/0xd0 [ 27.927816] [] kasan_kmalloc+0xad/0xe0 [ 27.933431] [] kmem_cache_alloc_trace+0x100/0x2b0 [ 27.939999] [] binder_get_thread+0x181/0x7a0 [ 27.946147] [] binder_poll+0x4a/0x210 [ 27.951679] [] SyS_epoll_ctl+0x10b1/0x2050 [ 27.957646] [] do_fast_syscall_32+0x314/0x890 [ 27.963870] [] sysenter_flags_fixed+0xd/0x17 [ 27.970015] [ 27.971628] Freed by task 3322: [ 27.974871] [] save_stack_trace+0x26/0x50 [ 27.980762] [] save_stack+0x43/0xd0 [ 27.986118] [] kasan_slab_free+0x72/0xc0 [ 27.991909] [] kfree+0xfc/0x300 [ 27.996920] [] binder_thread_dec_tmpref+0x1c1/0x250 [ 28.003672] [] binder_thread_release+0x27d/0x540 [ 28.010153] [] binder_ioctl+0xb94/0x12e0 [ 28.015962] [] compat_SyS_ioctl+0x28a/0x2540 [ 28.022101] [] do_fast_syscall_32+0x314/0x890 [ 28.028320] [] sysenter_flags_fixed+0xd/0x17 [ 28.034455] [ 28.036051] The buggy address belongs to the object at ffff8800b4821680 [ 28.036051] which belongs to the cache kmalloc-512 of size 512 [ 28.048672] The buggy address is located 184 bytes inside of [ 28.048672] 512-byte region [ffff8800b4821680, ffff8800b4821880) [ 28.060510] The buggy address belongs to the page: [ 28.475138] BUG: unable to handle kernel paging request at fffffffd283aa300 [ 28.482544] IP: [] cpuacct_charge+0x155/0x390 [ 28.488739] PGD 420f067 PUD 0 [ 28.492189] Oops: 0000 [#1] PREEMPT SMP KASAN [ 28.497174] Dumping ftrace buffer: [ 28.500694] (ftrace buffer empty) [ 28.504391] Modules linked in: [ 28.507702] CPU: 1 PID: 176 Comm: kworker/1:1 Not tainted 4.4.111-g3301b55 #17 [ 28.515058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.524417] Workqueue: events vmstat_shepherd [ 28.529037] task: ffff8800bb9d0000 task.stack: ffff8800bb9a8000 [ 28.535083] RIP: 0010:[] [] cpuacct_charge+0x155/0x390 [ 28.543711] RSP: 0018:ffff8800bb9af890 EFLAGS: 00010046 [ 28.549150] RAX: 1ffffffff0854dff RBX: 0000000000018528 RCX: ffffffff847ea080 [ 28.556415] RDX: fffffbffa5075460 RSI: fffffffd283aa300 RDI: ffffffff842a6ff8 [ 28.563679] RBP: ffff8800bb9af8d8 R08: 0000000000000001 R09: 0000000000000001 [ 28.570945] R10: 0000000000000000 R11: 1ffff10017735ede R12: ffffffff842a6f20 [ 28.578214] R13: dffffc0000000000 R14: 0000000030e290e8 R15: ffffffffb4778050 [ 28.585485] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 28.593711] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.599601] CR2: fffffffd283aa300 CR3: 00000001d091c000 CR4: 0000000000160670 [ 28.606865] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.614142] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.621404] Stack: [ 28.623542] ffffffff8122a4a0 ffff8800bb9af8c0 0000000000000046 0000000000000003 [ 28.631580] ffff8801d14b9820 ffffffff83843900 0000000030e290e8 ffff8801d14b9870 [ 28.639614] ffff8801d14b97c0 ffff8800bb9af928 ffffffff811dc017 ffff8801db21f4c0 [ 28.647643] Call Trace: [ 28.650230] [] ? cpuacct_charge+0x60/0x390 [ 28.656107] [] update_curr+0x2c7/0x6c0 [ 28.661641] [] enqueue_task_fair+0x313/0x2940 [ 28.667787] [] activate_task+0x148/0x270 [ 28.673535] [] ttwu_do_activate.constprop.131+0xbf/0x1e0 [ 28.680641] [] try_to_wake_up+0x68d/0xf60 [ 28.686443] [] ? __lock_is_held+0xa1/0xf0 [ 28.692247] [] wake_up_process+0x15/0x20 [ 28.697960] [] insert_work+0x171/0x210 [ 28.703503] [] __queue_work+0x3dc/0xea0 [ 28.709129] [] __queue_delayed_work+0x237/0x390 [ 28.715442] [] queue_delayed_work_on+0x59/0xb0 [ 28.721677] [] vmstat_shepherd+0x1c9/0x230 [ 28.727561] [] process_one_work+0x7d7/0x16e0 [ 28.733623] [] ? process_one_work+0x6f7/0x16e0 [ 28.739853] [] ? pwq_dec_nr_in_flight+0x280/0x280 [ 28.746347] [] ? worker_thread+0x284/0xfe0 [ 28.752249] [] worker_thread+0xdf/0xfe0 [ 28.757880] [] ? __schedule+0xa9d/0x1c70 [ 28.763597] [] ? preempt_schedule+0x24/0x30 [ 28.769568] [] ? ___preempt_schedule+0x12/0x14 [ 28.775801] [] kthread+0x268/0x300 [ 28.780991] [] ? process_one_work+0x16e0/0x16e0 [ 28.787311] [] ? kthread_create_on_node+0x400/0x400 [ 28.793983] [] ? kthread_create_on_node+0x400/0x400 [ 28.800652] [] ret_from_fork+0x3f/0x70 [ 28.806205] [] ? kthread_create_on_node+0x400/0x400 [ 28.812861] Code: 49 8d bc 24 d8 00 00 00 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 9e 01 00 00 49 8b 9c 24 d8 00 00 00 80 3a 00 0f 85 0a 02 00 00 <4a> 03 1c f9 48 89 d8 48 c1 e8 03 42 80 3c 28 00 0f 85 cf 01 00 [ 28.840079] RIP [] cpuacct_charge+0x155/0x390 [ 28.846344] RSP [ 28.849955] CR2: fffffffd283aa300 [ 28.853397] ---[ end trace 8b587a4047cfcc46 ]--- [ 28.858141] Kernel panic - not syncing: Fatal exception 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: 0x0000000001426a74 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-g3301b55 (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #17 SMP PREEMPT Thu Jan 11 18:34:07 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 1778550947 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 [ 1.286236] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.287379] pid_max: default: 32768 minimum: 301 [ 1.288090] ACPI: Core revision 20150930 [ 1.360301] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.361552] Security Framework initialized [ 1.362129] SELinux: Initializing. [ 1.362773] AppArmor: AppArmor disabled by boot time parameter [ 1.363671] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.364605] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.368377] Initializing cgroup subsys io [ 1.369014] Initializing cgroup subsys freezer [ 1.369679] Initializing cgroup subsys hugetlb [ 1.370300] Initializing cgroup subsys debug [ 1.371104] CPU: Physical Processor ID: 0 [ 1.373019] mce: CPU supports 32 MCE banks [ 1.373803] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.374623] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.377571] Freeing SMP alternatives memory: 44K [ 1.385865] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.505440] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.506901] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.595736] x86: Booting SMP configuration: [ 1.596402] .... node #0, CPUs: #1 [ 1.597147] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.601937] x86: Booted up 1 node, 2 CPUs [ 1.602526] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.607059] devtmpfs: initialized [ 1.616776] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.618170] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.619858] xor: automatically using best checksumming function: [ 1.633220] kworker/u4:0 (21) used greatest stack depth: 27224 bytes left [ 1.715418] avx : 21755.200 MB/sec [ 1.716620] RTC time: 5:03:12, date: 01/12/18 [ 1.718914] NET: Registered protocol family 16 [ 1.720037] schedtune: init normalization constants... [ 1.720736] schedtune: no energy model data [ 1.721321] schedtune: disabled! [ 1.755704] cpuidle: using governor ladder [ 1.785485] cpuidle: using governor menu [ 1.786784] ACPI: bus type PCI registered [ 1.787367] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 1.790244] PCI: Using configuration type 1 for base access [ 1.946995] kworker/u4:0 (326) used greatest stack depth: 26984 bytes left [ 2.225382] raid6: sse2x1 gen() 4642 MB/s [ 2.395326] raid6: sse2x1 xor() 2493 MB/s [ 2.565288] raid6: sse2x2 gen() 7556 MB/s [ 2.735246] raid6: sse2x2 xor() 4339 MB/s [ 2.905244] raid6: sse2x4 gen() 9424 MB/s [ 3.075200] raid6: sse2x4 xor() 5277 MB/s [ 3.245163] raid6: avx2x1 gen() 9171 MB/s [ 3.415155] raid6: avx2x2 gen() 13985 MB/s [ 3.585108] raid6: avx2x4 gen() 18877 MB/s [ 3.585815] raid6: using algorithm avx2x4 gen() 18877 MB/s [ 3.586572] raid6: using avx2x2 recovery algorithm [ 3.587908] ACPI: Added _OSI(Module Device) [ 3.588498] ACPI: Added _OSI(Processor Device) [ 3.589129] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.589768] ACPI: Added _OSI(Processor Aggregator Device) [ 3.600281] ACPI: Executed 2 blocks of module-level executable AML code [ 3.680114] ACPI: Interpreter enabled [ 3.681108] ACPI: (supports S0 S3 S4 S5) [ 3.681700] ACPI: Using IOAPIC for interrupt routing [ 3.682901] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.896669] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.897700] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 3.899029] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 3.900025] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.927968] PCI host bridge to bus 0000:00 [ 3.928644] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.929670] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.930636] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.931692] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 3.932746] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.970462] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.053413] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 4.059427] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 4.065367] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 4.071154] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 4.074896] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 4.088050] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.092270] vgaarb: loaded [ 4.095423] SCSI subsystem initialized [ 4.106897] ACPI: bus type USB registered [ 4.108564] usbcore: registered new interface driver usbfs [ 4.109886] usbcore: registered new interface driver hub [ 4.110934] usbcore: registered new device driver usb [ 4.112861] pps_core: LinuxPPS API ver. 1 registered [ 4.113623] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.114992] PTP clock support registered [ 4.118138] Advanced Linux Sound Architecture Driver Initialized. [ 4.119729] PCI: Using ACPI for IRQ routing [ 4.128127] NetLabel: Initializing [ 4.128718] NetLabel: domain hash size = 128 [ 4.129348] NetLabel: protocols = UNLABELED CIPSOv4 [ 4.130317] NetLabel: unlabeled traffic allowed by default [ 4.132864] amd_nb: Cannot enumerate AMD northbridges [ 4.134040] clocksource: Switched to clocksource kvm-clock [ 4.295040] pnp: PnP ACPI init [ 4.317655] pnp: PnP ACPI: found 7 devices [ 4.331813] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.333483] NET: Registered protocol family 2 [ 4.336169] TCP established hash table entries: 65536 (order: 7, 524288 bytes) [ 4.337637] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes) [ 4.344987] TCP: Hash tables configured (established 65536 bind 65536) [ 4.346247] UDP hash table entries: 4096 (order: 7, 655360 bytes) [ 4.348503] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) [ 4.351176] NET: Registered protocol family 1 [ 4.351902] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.353691] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.354743] software IO TLB [mem 0xbbffd000-0xbfffd000] (64MB) mapped at [ffff8800bbffd000-ffff8800bfffcfff] [ 4.356740] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 10737418240 ms ovfl timer [ 4.357976] hw unit of domain pp0-core 2^-0 Joules [ 4.358656] hw unit of domain package 2^-0 Joules [ 4.359334] hw unit of domain dram 2^-16 Joules [ 4.365142] Scanning for low memory corruption every 60 seconds [ 4.374108] audit: initializing netlink subsys (disabled) [ 4.375179] audit: type=2000 audit(1515733395.380:1): initialized [ 4.382270] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 4.515363] VFS: Disk quotas dquot_6.6.0 [ 4.517424] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.540338] fuse init (API version 7.23) [ 4.543632] 9p: Installing v9fs 9p2000 file system support [ 4.559379] async_tx: api initialized (async) [ 4.561361] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 4.562434] io scheduler noop registered [ 4.562997] io scheduler deadline registered [ 4.566835] io scheduler cfq registered (default) [ 4.576041] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 4.579410] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.580435] ACPI: Power Button [PWRF] [ 4.582161] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.583208] ACPI: Sleep Button [SLPF] [ 4.608541] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 4.609445] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.632057] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 4.632996] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.639825] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.663493] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.688633] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.712935] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.737216] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.746106] Non-volatile memory driver v1.3 [ 4.747977] Linux agpgart interface v0.103 [ 4.750913] [drm] Initialized drm 1.1.0 20060810 [ 4.852596] brd: module loaded [ 4.921703] loop: module loaded [ 4.955689] nbd: registered device at major 43 [ 5.103940] drbd: initialized. Version: 8.4.5 (api:1/proto:86-101) [ 5.104700] drbd: built-in [ 5.105026] drbd: registered as block device major 147 [ 5.132594] scsi host0: Virtio SCSI HBA [ 5.169778] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.354168] tsc: Refined TSC clocksource calibration: 2299.908 MHz [ 5.354941] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x2126de31b4a, max_idle_ns: 440795292652 ns [ 5.803223] st: Version 20101219, fixed bufsize 32768, s/g segs 256 [ 5.805070] osst :I: Tape driver with OnStream support version 0.99.4 [ 5.805070] osst :I: $Id: osst.c,v 1.73 2005/01/01 21:13:34 wriede Exp $ [ 5.811410] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 5.812734] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 5.813063] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 5.813387] SCSI Media Changer driver v0.25 [ 5.817015] sd 0:0:1:0: [sda] Write Protect is off [ 5.818560] tun: Universal TUN/TAP device driver, 1.6 [ 5.819503] tun: (C) 1999-2004 Max Krasnyansky [ 5.819536] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 5.833651] sda: sda1 [ 5.854157] sd 0:0:1:0: [sda] Attached SCSI disk