[ 16.108528] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.585051] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available) [ 21.936170] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 22.810196] random: sshd: uninitialized urandom read (32 bytes read, 102 bits of entropy available) [ 33.985946] random: sshd: uninitialized urandom read (32 bytes read, 113 bits of entropy available) Warning: Permanently added '10.128.0.17' (ECDSA) to the list of known hosts. [ 39.351750] random: sshd: uninitialized urandom read (32 bytes read, 117 bits of entropy available) executing program [ 39.446456] ================================================================== [ 39.453852] BUG: KASAN: use-after-free in __lock_acquire+0x387e/0x4b50 [ 39.460503] Read of size 8 at addr ffff8800b463bc38 by task syzkaller958291/3322 [ 39.468002] [ 39.469599] CPU: 1 PID: 3322 Comm: syzkaller958291 Not tainted 4.4.111-gc2f631b #20 [ 39.477358] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.486691] 0000000000000000 a31b3ad0e0f633b1 ffff8800b4417850 ffffffff81d0513d [ 39.494667] ffffea0002d18e80 ffff8800b463bc38 0000000000000000 ffff8800b463bc38 [ 39.502631] 0000000000000000 ffff8800b4417888 ffffffff814fd433 ffff8800b463bc38 [ 39.510602] Call Trace: [ 39.513159] [] dump_stack+0xc1/0x124 [ 39.518496] [] print_address_description+0x73/0x260 [ 39.525130] [] kasan_report+0x285/0x370 [ 39.530724] [] ? __lock_acquire+0x387e/0x4b50 [ 39.536836] [] __asan_report_load8_noabort+0x14/0x20 [ 39.543556] [] __lock_acquire+0x387e/0x4b50 [ 39.549514] [] ? __lock_acquire+0xb5f/0x4b50 [ 39.555539] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 39.562521] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 39.569336] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 39.576315] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 39.583292] [] lock_acquire+0x15e/0x460 [ 39.588885] [] ? remove_wait_queue+0x14/0x40 [ 39.594911] [] _raw_spin_lock_irqsave+0x4e/0x70 [ 39.601197] [] ? remove_wait_queue+0x14/0x40 [ 39.607220] [] remove_wait_queue+0x14/0x40 [ 39.613070] [] ep_unregister_pollwait.isra.6+0xa8/0x220 [ 39.620074] [] ? ep_unregister_pollwait.isra.6+0x114/0x220 [ 39.627319] [] ? ep_free+0x1c0/0x1c0 [ 39.632652] [] ep_free+0x93/0x1c0 [ 39.637724] [] ? ep_free+0x1c0/0x1c0 [ 39.643066] [] ep_eventpoll_release+0x44/0x60 [ 39.649179] [] __fput+0x233/0x6d0 [ 39.654249] [] ____fput+0x15/0x20 [ 39.659325] [] task_work_run+0x104/0x180 [ 39.665002] [] do_exit+0x871/0x2a20 [ 39.670254] [] ? handle_mm_fault+0x192d/0x3190 [ 39.676465] [] ? handle_mm_fault+0x3f2/0x3190 [ 39.682585] [] ? release_task+0x1240/0x1240 [ 39.688525] [] do_group_exit+0x108/0x320 [ 39.694212] [] SyS_exit_group+0x1d/0x20 [ 39.699806] [] ? do_group_exit+0x320/0x320 [ 39.705661] [] do_fast_syscall_32+0x314/0x890 [ 39.711787] [] sysenter_flags_fixed+0xd/0x17 [ 39.717820] [ 39.719417] Allocated by task 3322: [ 39.723006] [] save_stack_trace+0x26/0x50 [ 39.728896] [] save_stack+0x43/0xd0 [ 39.734256] [] kasan_kmalloc+0xad/0xe0 [ 39.739883] [] kmem_cache_alloc_trace+0x100/0x2b0 [ 39.746458] [] binder_get_thread+0x181/0x7a0 [ 39.752661] [] binder_poll+0x4a/0x210 [ 39.758194] [] SyS_epoll_ctl+0x10b1/0x2050 [ 39.764160] [] do_fast_syscall_32+0x314/0x890 [ 39.770392] [] sysenter_flags_fixed+0xd/0x17 [ 39.776532] [ 39.778131] Freed by task 3322: [ 39.781374] [] save_stack_trace+0x26/0x50 [ 39.787259] [] save_stack+0x43/0xd0 [ 39.792617] [] kasan_slab_free+0x72/0xc0 [ 39.798410] [] kfree+0xfc/0x300 [ 39.803422] [] binder_thread_dec_tmpref+0x1c1/0x250 [ 39.810170] [] binder_thread_release+0x27d/0x540 [ 39.817524] [] binder_ioctl+0xb94/0x12e0 [ 39.823318] [] compat_SyS_ioctl+0x28a/0x2540 [ 39.829461] [] do_fast_syscall_32+0x314/0x890 [ 39.835691] [] sysenter_flags_fixed+0xd/0x17 [ 39.841833] [ 39.843434] The buggy address belongs to the object at ffff8800b463bb80 [ 39.843434] which belongs to the cache kmalloc-512 of size 512 [ 39.856933] The buggy address is located 184 bytes inside of [ 39.856933] 512-byte region [ffff8800b463bb80, ffff8800b463bd80) [ 39.868820] The buggy address belongs to the page: [ 40.425433] ------------[ cut here ]------------ [ 40.430232] WARNING: CPU: 0 PID: 299 at lib/list_debug.c:29 __list_add+0x120/0x1c0() [ 40.438091] list_add corruption. next->prev should be prev (ffff8801db31fe70), but was (null). (next=ffff8800b40bb008). [ 40.449957] Kernel panic - not syncing: panic_on_warn set ... [ 40.449957] [ 40.457296] CPU: 0 PID: 299 Comm: kworker/0:1 Not tainted 4.4.111-gc2f631b #20 [ 40.464625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.473962] Workqueue: events vmstat_shepherd [ 40.478562] 0000000000000000 ee404264134ee413 ffff8801d95a76d0 ffffffff81d0513d [ 40.486585] ffffffff83842f60 ffff8801d95a77a8 ffffffff839fd9a0 0000000000000009 [ 40.494539] 000000000000001d ffff8801d95a7798 ffffffff81419a3a 0000000041b58ab3 [ 40.502510] Call Trace: [ 40.505069] [] dump_stack+0xc1/0x124 [ 40.510400] [] panic+0x1aa/0x388 [ 40.515390] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 40.522293] [] ? warn_slowpath_common+0x10a/0x140 [ 40.528750] [] warn_slowpath_common+0x125/0x140 [ 40.535035] [] ? __list_add+0x120/0x1c0 [ 40.540627] [] warn_slowpath_fmt+0xc1/0x110 [ 40.546575] [] ? warn_slowpath_common+0x140/0x140 [ 40.553041] [] __list_add+0x120/0x1c0 [ 40.558459] [] account_entity_enqueue+0x1f6/0x2c0 [ 40.564924] [] enqueue_task_fair+0xfb/0x2940 [ 40.570949] [] activate_task+0x148/0x270 [ 40.576632] [] ttwu_do_activate.constprop.131+0xbf/0x1e0 [ 40.583702] [] try_to_wake_up+0x68d/0xf60 [ 40.589492] [] ? __lock_is_held+0xa1/0xf0 [ 40.595277] [] wake_up_process+0x15/0x20 [ 40.601047] [] insert_work+0x171/0x210 [ 40.606551] [] __queue_work+0x3dc/0xea0 [ 40.612164] [] __queue_delayed_work+0x237/0x390 [ 40.618450] [] queue_delayed_work_on+0x59/0xb0 [ 40.624648] [] vmstat_shepherd+0x1c9/0x230 [ 40.630508] [] process_one_work+0x7d7/0x16e0 [ 40.636533] [] ? process_one_work+0x6f7/0x16e0 [ 40.642730] [] ? pwq_dec_nr_in_flight+0x280/0x280 [ 40.649188] [] ? worker_thread+0x284/0xfe0 [ 40.655037] [] worker_thread+0xdf/0xfe0 [ 40.660629] [] ? __schedule+0xa9d/0x1c70 [ 40.666307] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 40.673201] [] kthread+0x268/0x300 [ 40.678371] [] ? process_one_work+0x16e0/0x16e0 [ 40.684660] [] ? kthread_create_on_node+0x400/0x400 [ 40.691392] [] ? kthread_create_on_node+0x400/0x400 [ 40.698036] [] ret_from_fork+0x3f/0x70 [ 40.703557] [] ? kthread_create_on_node+0x400/0x400 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: 0x00000000014270c6 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-gc2f631b (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #20 SMP PREEMPT Mon Jan 15 13:36:19 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 1962067169 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 [ 1.167449] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.168645] pid_max: default: 32768 minimum: 301 [ 1.169346] ACPI: Core revision 20150930 [ 1.242629] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.243941] Security Framework initialized [ 1.244513] SELinux: Initializing. [ 1.245248] AppArmor: AppArmor disabled by boot time parameter [ 1.246153] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.247142] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.250870] Initializing cgroup subsys io [ 1.251478] Initializing cgroup subsys freezer [ 1.252165] Initializing cgroup subsys hugetlb [ 1.252798] Initializing cgroup subsys debug [ 1.253615] CPU: Physical Processor ID: 0 [ 1.255484] mce: CPU supports 32 MCE banks [ 1.256303] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.257208] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.260130] Freeing SMP alternatives memory: 44K [ 1.269062] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.386780] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.388281] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.477031] x86: Booting SMP configuration: [ 1.477810] .... node #0, CPUs: #1 [ 1.478560] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.483418] x86: Booted up 1 node, 2 CPUs [ 1.484074] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.488601] devtmpfs: initialized [ 1.498271] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.499726] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.501341] xor: automatically using best checksumming function: [ 1.514513] kworker/u4:0 (21) used greatest stack depth: 27864 bytes left [ 1.596781] avx : 21590.400 MB/sec [ 1.597978] RTC time: 8:46:25, date: 01/16/18 [ 1.600372] NET: Registered protocol family 16 [ 1.601458] schedtune: init normalization constants... [ 1.602296] schedtune: no energy model data [ 1.602869] schedtune: disabled! [ 1.633566] cpuidle: using governor ladder [ 1.663332] cpuidle: using governor menu [ 1.664669] ACPI: bus type PCI registered [ 1.665275] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 1.668233] PCI: Using configuration type 1 for base access [ 1.679440] kworker/u4:0 (40) used greatest stack depth: 26888 bytes left [ 2.116742] raid6: sse2x1 gen() 4684 MB/s [ 2.286765] raid6: sse2x1 xor() 2482 MB/s [ 2.456718] raid6: sse2x2 gen() 7400 MB/s [ 2.626703] raid6: sse2x2 xor() 4162 MB/s [ 2.796686] raid6: sse2x4 gen() 9719 MB/s [ 2.966676] raid6: sse2x4 xor() 5461 MB/s [ 3.136661] raid6: avx2x1 gen() 9298 MB/s [ 3.306657] raid6: avx2x2 gen() 14267 MB/s [ 3.476639] raid6: avx2x4 gen() 18464 MB/s [ 3.477314] raid6: using algorithm avx2x4 gen() 18464 MB/s [ 3.478088] raid6: using avx2x2 recovery algorithm [ 3.479404] ACPI: Added _OSI(Module Device) [ 3.480025] ACPI: Added _OSI(Processor Device) [ 3.480633] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.481297] ACPI: Added _OSI(Processor Aggregator Device) [ 3.491787] ACPI: Executed 2 blocks of module-level executable AML code [ 3.567858] ACPI: Interpreter enabled [ 3.568820] ACPI: (supports S0 S3 S4 S5) [ 3.569380] ACPI: Using IOAPIC for interrupt routing [ 3.570551] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.780275] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.781331] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 3.782724] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 3.783881] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.810493] PCI host bridge to bus 0000:00 [ 3.811140] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.812155] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.813142] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.814178] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 3.815233] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.853745] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.940776] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 3.947066] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 3.953168] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 3.959197] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 3.963029] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 3.976192] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.980256] vgaarb: loaded [ 3.983326] SCSI subsystem initialized [ 3.988426] ACPI: bus type USB registered [ 3.990074] usbcore: registered new interface driver usbfs [ 3.991408] usbcore: registered new interface driver hub [ 3.992499] usbcore: registered new device driver usb [ 3.994369] pps_core: LinuxPPS API ver. 1 registered [ 3.995076] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 3.996444] PTP clock support registered [ 3.999372] Advanced Linux Sound Architecture Driver Initialized. [ 4.001029] PCI: Using ACPI for IRQ routing [ 4.009345] NetLabel: Initializing [ 4.009873] NetLabel: domain hash size = 128 [ 4.010467] NetLabel: protocols = UNLABELED CIPSOv4 [ 4.011416] NetLabel: unlabeled traffic allowed by default [ 4.014012] amd_nb: Cannot enumerate AMD northbridges [ 4.014985] clocksource: Switched to clocksource kvm-clock [ 4.176669] pnp: PnP ACPI init [ 4.199285] pnp: PnP ACPI: found 7 devices [ 4.213247] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.214849] NET: Registered protocol family 2 [ 4.217684] TCP established hash table entries: 65536 (order: 7, 524288 bytes) [ 4.219263] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes) [ 4.226547] TCP: Hash tables configured (established 65536 bind 65536) [ 4.227808] UDP hash table entries: 4096 (order: 7, 655360 bytes) [ 4.230071] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) [ 4.232672] NET: Registered protocol family 1 [ 4.233442] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.235912] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.236819] software IO TLB [mem 0xbbffd000-0xbfffd000] (64MB) mapped at [ffff8800bbffd000-ffff8800bfffcfff] [ 4.238776] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 10737418240 ms ovfl timer [ 4.239994] hw unit of domain pp0-core 2^-0 Joules [ 4.240678] hw unit of domain package 2^-0 Joules [ 4.241335] hw unit of domain dram 2^-16 Joules [ 4.247524] Scanning for low memory corruption every 60 seconds [ 4.256086] audit: initializing netlink subsys (disabled) [ 4.257193] audit: type=2000 audit(1516092388.321:1): initialized [ 4.264324] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 4.399469] VFS: Disk quotas dquot_6.6.0 [ 4.401086] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.423959] fuse init (API version 7.23) [ 4.428050] 9p: Installing v9fs 9p2000 file system support [ 4.443257] async_tx: api initialized (async) [ 4.445178] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 4.446320] io scheduler noop registered [ 4.446894] io scheduler deadline registered [ 4.449352] io scheduler cfq registered (default) [ 4.458853] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 4.462205] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.463257] ACPI: Power Button [PWRF] [ 4.465533] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.466559] ACPI: Sleep Button [SLPF] [ 4.490391] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 4.491290] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.514766] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 4.515756] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.523225] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.546936] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.572059] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.597235] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.622010] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.629964] Non-volatile memory driver v1.3 [ 4.632142] Linux agpgart interface v0.103 [ 4.635221] [drm] Initialized drm 1.1.0 20060810 [ 4.736974] brd: module loaded [ 4.794660] loop: module loaded [ 4.818800] nbd: registered device at major 43 [ 4.966487] drbd: initialized. Version: 8.4.5 (api:1/proto:86-101) [ 4.967573] drbd: built-in [ 4.968023] drbd: registered as block device major 147 [ 4.995137] scsi host0: Virtio SCSI HBA [ 5.022384] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.235288] tsc: Refined TSC clocksource calibration: 2299.807 MHz [ 5.236618] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x21267ef1be2, max_idle_ns: 440795317114 ns [ 5.627170] st: Version 20101219, fixed bufsize 32768, s/g segs 256 [ 5.629052] osst :I: Tape driver with OnStream support version 0.99.4 [ 5.629052] osst :I: $Id: osst.c,v 1.73 2005/01/01 21:13:34 wriede Exp $ [ 5.635622] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 5.637875] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 5.638074] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 5.640595] SCSI Media Changer driver v0.25 [ 5.640643] sd 0:0:1:0: [sda] Write Protect is off [ 5.641714] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 5.647297] tun: Universal TUN/TAP device driver, 1.6 [ 5.648559] tun: (C) 1999-2004 Max Krasnyansky [ 5.661021] sda: sda1 [ 5.678955] sd 0:0:1:0: [sda] Attached SCSI disk [ 5.684394] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI [ 5.686691] e100: Copyright(c) 1999-2006 Intel Corporation [ 5.687788] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI [ 5.689053] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 5.690654] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 5.692153] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 5.693567] sky2: driver version 1.30 [ 5.695714] PPP generic driver version 2.4.2 [ 5.698076] PPP BSD Compression module registered [ 5.699073] PPP Deflate Compression module registered [ 5.700037] PPP MPPE Compression module registered [ 5.700852] NET: Registered protocol family 24 [ 5.701883] usbcore: registered new interface driver asix [ 5.703121] usbcore: registered new interface driver ax88179_178a [ 5.704584] usbcore: registered new interface driver cdc_ether [ 5.706106] usbcore: registered new interface driver net1080 [ 5.707675] usbcore: registered new interface driver cdc_subset [ 5.708862] usbcore: registered new interface driver zaurus [ 5.709967] usbcore: registered new interface driver cdc_ncm [ 5.713074] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 5.714471] ehci-pci: EHCI PCI platform driver [ 5.715857] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 5.716960] ohci-pci: OHCI PCI platform driver [ 5.718096] uhci_hcd: USB Universal Host Controller Interface driver [ 5.721425] usbcore: registered new interface driver usblp [ 5.722474] usbcore: registered new interface driver usb-storage [ 5.725377] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12 [ 5.728844] i8042: Warning: Keylock active [ 5.731039] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 5.733813] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 5.738290] mousedev: PS/2 mouse device common for all mice [ 5.742856] usbcore: registered new interface driver xpad [ 5.744095] usbcore: registered new interface driver usb_acecad [ 5.746017] usbcore: registered new interface driver aiptek [ 5.747183] usbcore: registered new interface driver gtco [ 5.748334] usbcore: registered new interface driver hanwang [ 5.749671] usbcore: registered new interface driver kbtab [ 5.753025] rtc_cmos 00:00: RTC can wake from S4 [ 5.756013] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0 [ 5.758088] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram [ 5.760738] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11 [ 5.764443] softdog: Software Watchdog Timer: 0.08 initialized. soft_noboot=0 soft_margin=60 sec soft_panic=0 (nowayout=0) [ 5.767058] md: linear personality registered for level -1 [ 5.769448] md: raid0 personality registered for level 0 [ 5.770096] md: raid1 personality registered for level 1 [ 5.770866] md: raid10 personality registered for level 10 [ 5.772697] md: raid6 personality registered for level 6 [ 5.773662] md: raid5 personality registered for level 5 [ 5.774510] md: raid4 personality registered for level 4 [ 5.775708] md: multipath personality registered for level -4 [ 5.777043] md: faulty personality registered for level -5 [ 5.782788] device-mapper: uevent: version 1.0.3