[....] Starting file context maintaining daemon:[ 16.696739] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) 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: [ 21.857024] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 22.244569] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 22.999884] random: sshd: uninitialized urandom read (32 bytes read, 78 bits of entropy available) [ 23.178720] random: sshd: uninitialized urandom read (32 bytes read, 82 bits of entropy available) Warning: Permanently added '10.128.15.242' (ECDSA) to the list of known hosts. [ 28.566101] random: sshd: uninitialized urandom read (32 bytes read, 91 bits of entropy available) executing program executing program executing program [ 28.670673] ================================================================== [ 28.678073] BUG: KASAN: slab-out-of-bounds in sg_remove_request+0xf9/0x110 [ 28.685058] Read of size 8 at addr ffff8800b48101c0 by task syzkaller222775/3333 [ 28.692566] [ 28.694174] CPU: 0 PID: 3333 Comm: syzkaller222775 Not tainted 4.4.112-g3fc4284 #32 [ 28.701934] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.711257] 0000000000000000 7450675eeb2bbe29 ffff8800b43d7ab0 ffffffff81d054ed [ 28.719224] ffffea0002d20400 ffff8800b48101c0 0000000000000000 ffff8800b48101c0 [ 28.727191] ffff8801d1e32338 ffff8800b43d7ae8 ffffffff814fd953 ffff8800b48101c0 [ 28.739692] Call Trace: [ 28.742256] [] dump_stack+0xc1/0x124 [ 28.747592] [] print_address_description+0x73/0x260 [ 28.754226] [] kasan_report+0x285/0x370 [ 28.759824] [] ? sg_remove_request+0xf9/0x110 [ 28.765940] [] __asan_report_load8_noabort+0x14/0x20 [ 28.772663] [] sg_remove_request+0xf9/0x110 [ 28.778605] [] sg_finish_rem_req+0x295/0x340 [ 28.784633] [] sg_read+0xa21/0x1490 [ 28.789880] [] ? do_futex+0x3e3/0x1670 [ 28.795390] [] ? sg_proc_seq_show_debug+0xd30/0xd30 [ 28.802032] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 28.809016] [] ? lockdep_init_map+0xeb/0x1690 [ 28.815131] [] ? sg_proc_seq_show_debug+0xd30/0xd30 [ 28.821768] [] __vfs_read+0x103/0x440 [ 28.827187] [] ? vfs_iter_write+0x2d0/0x2d0 [ 28.833128] [] ? fsnotify+0x5ad/0xee0 [ 28.838548] [] ? fsnotify+0xee0/0xee0 [ 28.843970] [] ? avc_policy_seqno+0x9/0x20 [ 28.849826] [] ? selinux_file_permission+0x348/0x460 [ 28.856551] [] ? security_file_permission+0x89/0x1e0 [ 28.863275] [] ? rw_verify_area+0x100/0x2f0 [ 28.869215] [] vfs_read+0x123/0x3a0 [ 28.874460] [] SyS_read+0xd9/0x1b0 [ 28.879622] [] ? do_sendfile+0xd30/0xd30 [ 28.885303] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 28.891769] [] entry_SYSCALL_64_fastpath+0x16/0x92 [ 28.898314] [ 28.899914] Allocated by task 0: [ 28.903244] (stack is not available) [ 28.906922] [ 28.908519] Freed by task 0: [ 28.911502] (stack is not available) [ 28.915182] [ 28.916778] The buggy address belongs to the object at ffff8800b4810180 [ 28.916778] which belongs to the cache fasync_cache of size 96 [ 28.929404] The buggy address is located 64 bytes inside of [ 28.929404] 96-byte region [ffff8800b4810180, ffff8800b48101e0) [ 28.941071] The buggy address belongs to the page: [ 28.960189] kasan: CONFIG_KASAN_INLINE enabled [ 28.964625] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 28.977547] Dumping ftrace buffer: [ 28.981077] (ftrace buffer empty) [ 28.984782] Modules linked in: [ 28.988095] CPU: 1 PID: 3334 Comm: syzkaller222775 Not tainted 4.4.112-g3fc4284 #32 [ 28.995878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.005225] task: ffff8801d1ed8000 task.stack: ffff8801d1f20000 [ 29.011276] RIP: 0010:[] [] rb_insert_color+0x9f/0xcb0 [ 29.019899] RSP: 0018:ffff8801db307d18 EFLAGS: 00010003 [ 29.025340] RAX: 0a0508a8e82a0be9 RBX: ffffffff838a8620 RCX: ffffffff838a8620 [ 29.032605] RDX: 1ffffffff07150c5 RSI: ffff8801db319710 RDI: ffff8801db319c40 [ 29.039872] RBP: ffff8801db307d60 R08: ffffffff857d1748 R09: 0000000000000001 [ 29.047139] R10: 0000000000000000 R11: 1ffff1003b660f62 R12: ffff8800b17cf638 [ 29.054406] R13: 5028454741505f4e R14: ffff8801db319c40 R15: dffffc0000000000 [ 29.061690] FS: 00007f9f7bde8700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 29.069912] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.075793] CR2: 00000000202c4ff8 CR3: 00000001d1df6000 CR4: 0000000000160670 [ 29.083066] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.090331] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.097595] Stack: [ 29.099743] ffffffff842bcb20 ffff8801d1ed8870 0000000000000001 ffff8801db307d70 [ 29.107789] ffff8801db319c40 dffffc0000000000 0000000000000000 ffff8801db319710 [ 29.115826] ffff8800b17cf640 ffff8801db307db0 ffffffff81d22db7 ffff8801db319c58 [ 29.123895] Call Trace: [ 29.126462] [ 29.128516] [] timerqueue_add+0x157/0x2a0 [ 29.134615] [] enqueue_hrtimer+0x168/0x450 [ 29.140516] [] __hrtimer_run_queues+0x732/0xfe0 [ 29.146836] [] ? hrtimer_fixup_init+0x70/0x70 [ 29.152989] [] ? hrtimer_interrupt+0x131/0x440 [ 29.159225] [] hrtimer_interrupt+0x1a6/0x440 [ 29.165285] [] local_apic_timer_interrupt+0x6a/0xb0 [ 29.171964] [] smp_apic_timer_interrupt+0x76/0xa0 [ 29.178459] [] apic_timer_interrupt+0xa0/0xb0 [ 29.184601] [ 29.186666] [] ? smp_call_function_single+0x13e/0x3b0 [ 29.193814] [] ? smp_call_function_single+0x140/0x3b0 [ 29.200659] [] ? SyS_mmap+0x16/0x20 [ 29.205937] [] ? do_flush_tlb_all+0x30/0x30 [ 29.211939] [] ? generic_exec_single+0x330/0x330 [ 29.218367] [] ? do_flush_tlb_all+0x30/0x30 [ 29.224348] [] ? find_next_bit+0x3e/0x50 [ 29.230067] [] ? cpumask_next_and+0x92/0xc0 [ 29.236043] [] smp_call_function_many+0x481/0x710 [ 29.242545] [] ? __lock_is_held+0xa1/0xf0 [ 29.248343] [] ? do_flush_tlb_all+0x30/0x30 [ 29.254314] [] native_flush_tlb_others+0xfe/0x710 [ 29.260804] [] ? _find_next_bit.part.0+0xe0/0x120 [ 29.267298] [] ? switch_mm+0x70/0x70 [ 29.272663] [] ? cpumask_any_but+0x88/0xc0 [ 29.278559] [] flush_tlb_mm_range+0x103/0x560 [ 29.284705] [] tlb_flush_mmu_tlbonly+0x185/0x2f0 [ 29.291112] [] tlb_finish_mmu+0x1b/0xa0 [ 29.296737] [] unmap_region+0x250/0x330 [ 29.302364] [] ? __vma_link_file+0x160/0x160 [ 29.308420] [] ? memset+0x31/0x40 [ 29.313522] [] ? vma_compute_subtree_gap+0x190/0x200 [ 29.320276] [] ? vma_rb_erase+0x60a/0x9f0 [ 29.326080] [] do_munmap+0x70f/0xec0 [ 29.331447] [] mmap_region+0x423/0x1250 [ 29.337069] [] ? selinux_mmap_addr+0x1f/0xf0 [ 29.343125] [] do_mmap+0x4fd/0x9d0 [ 29.348321] [] vm_mmap_pgoff+0x16e/0x1c0 [ 29.354037] [] ? vma_is_stack_for_task+0xa0/0xa0 [ 29.360445] [] ? SyS_futex+0x210/0x2c0 [ 29.365982] [] SyS_mmap_pgoff+0xd0/0x560 [ 29.371691] [] ? vm_stat_account+0x130/0x130 [ 29.377749] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.384590] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 29.391083] [] SyS_mmap+0x16/0x20 [ 29.396183] [] entry_SYSCALL_64_fastpath+0x16/0x92 [ 29.402748] Code: 48 89 c2 48 c1 ea 03 42 80 3c 3a 00 0f 85 94 09 00 00 4c 8b 6b 08 4d 39 e5 0f 84 b0 01 00 00 4d 85 ed 74 1d 4c 89 e8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 95 09 00 00 41 f6 45 00 01 0f 84 20 03 00 [ 29.430259] RIP [] rb_insert_color+0x9f/0xcb0 [ 29.436532] RSP [ 29.440153] ---[ end trace 358dc2caa5b92478 ]--- [ 29.444899] 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: 0x00000000039c626e input_len: 0x0000000001426b71 output: 0x0000000001000000 output_len: 0x0000000003dd8a40 run_size: 0x000000000550e000 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 4.4.112-g3fc4284 (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #32 SMP PREEMPT Sat Jan 20 10:36:04 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 1769573162 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: 1935237 [ 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: 6581452K/7863916K available (40431K kernel code, 6131K rwdata, 8808K rodata, 1848K init, 23616K bss, 1282464K 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 [ 1.276581] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.277801] pid_max: default: 32768 minimum: 301 [ 1.278508] ACPI: Core revision 20150930 [ 1.348841] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.350046] Security Framework initialized [ 1.350615] SELinux: Initializing. [ 1.351298] AppArmor: AppArmor disabled by boot time parameter [ 1.352199] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.353135] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.356819] Initializing cgroup subsys io [ 1.357417] Initializing cgroup subsys freezer [ 1.358070] Initializing cgroup subsys hugetlb [ 1.358698] Initializing cgroup subsys debug [ 1.359476] CPU: Physical Processor ID: 0 [ 1.361378] mce: CPU supports 32 MCE banks [ 1.362118] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.362994] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.366269] Freeing SMP alternatives memory: 44K [ 1.375518] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.495919] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.497454] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.586172] x86: Booting SMP configuration: [ 1.586816] .... node #0, CPUs: #1 [ 1.587574] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.592416] x86: Booted up 1 node, 2 CPUs [ 1.593017] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.597563] devtmpfs: initialized [ 1.607093] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.608462] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.610087] xor: automatically using best checksumming function: [ 1.623607] kworker/u4:0 (21) used greatest stack depth: 27224 bytes left [ 1.705922] avx : 21598.800 MB/sec [ 1.707128] RTC time: 10:29:20, date: 01/20/18 [ 1.709402] NET: Registered protocol family 16 [ 1.710531] schedtune: init normalization constants... [ 1.711276] schedtune: no energy model data [ 1.711872] schedtune: disabled! [ 1.746251] cpuidle: using governor ladder [ 1.775969] cpuidle: using governor menu [ 1.777260] ACPI: bus type PCI registered [ 1.777832] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 1.780617] PCI: Using configuration type 1 for base access [ 1.977955] kworker/u4:0 (435) used greatest stack depth: 26984 bytes left [ 2.215874] raid6: sse2x1 gen() 4653 MB/s [ 2.385859] raid6: sse2x1 xor() 2594 MB/s [ 2.555841] raid6: sse2x2 gen() 6967 MB/s [ 2.725824] raid6: sse2x2 xor() 4037 MB/s [ 2.895809] raid6: sse2x4 gen() 8575 MB/s [ 3.065797] raid6: sse2x4 xor() 5229 MB/s [ 3.235778] raid6: avx2x1 gen() 9277 MB/s [ 3.405760] raid6: avx2x2 gen() 14417 MB/s [ 3.575744] raid6: avx2x4 gen() 18921 MB/s [ 3.576406] raid6: using algorithm avx2x4 gen() 18921 MB/s [ 3.577202] raid6: using avx2x2 recovery algorithm [ 3.578489] ACPI: Added _OSI(Module Device) [ 3.579110] ACPI: Added _OSI(Processor Device) [ 3.579740] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.580386] ACPI: Added _OSI(Processor Aggregator Device) [ 3.590882] ACPI: Executed 2 blocks of module-level executable AML code [ 3.665926] ACPI: Interpreter enabled [ 3.666822] ACPI: (supports S0 S3 S4 S5) [ 3.667384] ACPI: Using IOAPIC for interrupt routing [ 3.668505] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.874142] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.875205] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 3.876581] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 3.877616] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.903603] PCI host bridge to bus 0000:00 [ 3.904243] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.905188] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.906151] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.907174] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 3.908228] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.945764] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.037157] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 4.043043] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 4.048748] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 4.054462] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 4.057884] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 4.070865] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.074363] vgaarb: loaded [ 4.077764] SCSI subsystem initialized [ 4.081304] ACPI: bus type USB registered [ 4.082926] usbcore: registered new interface driver usbfs [ 4.084244] usbcore: registered new interface driver hub [ 4.085580] usbcore: registered new device driver usb [ 4.087823] pps_core: LinuxPPS API ver. 1 registered [ 4.088938] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.090291] PTP clock support registered [ 4.093245] Advanced Linux Sound Architecture Driver Initialized. [ 4.094828] PCI: Using ACPI for IRQ routing [ 4.112442] NetLabel: Initializing [ 4.112976] NetLabel: domain hash size = 128 [ 4.113590] NetLabel: protocols = UNLABELED CIPSOv4 [ 4.114596] NetLabel: unlabeled traffic allowed by default [ 4.116991] amd_nb: Cannot enumerate AMD northbridges [ 4.117805] clocksource: Switched to clocksource kvm-clock [ 4.276172] pnp: PnP ACPI init [ 4.298591] pnp: PnP ACPI: found 7 devices [ 4.312650] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.314283] NET: Registered protocol family 2 [ 4.316755] TCP established hash table entries: 65536 (order: 7, 524288 bytes) [ 4.318259] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes) [ 4.325512] TCP: Hash tables configured (established 65536 bind 65536) [ 4.326694] UDP hash table entries: 4096 (order: 7, 655360 bytes) [ 4.329534] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) [ 4.332161] NET: Registered protocol family 1 [ 4.332905] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.334710] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.335653] software IO TLB [mem 0xbbffd000-0xbfffd000] (64MB) mapped at [ffff8800bbffd000-ffff8800bfffcfff] [ 4.337534] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 10737418240 ms ovfl timer [ 4.338794] hw unit of domain pp0-core 2^-0 Joules [ 4.339456] hw unit of domain package 2^-0 Joules [ 4.340131] hw unit of domain dram 2^-16 Joules [ 4.345607] Scanning for low memory corruption every 60 seconds [ 4.354645] audit: initializing netlink subsys (disabled) [ 4.355766] audit: type=2000 audit(1516444162.718:1): initialized [ 4.362885] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 4.491746] VFS: Disk quotas dquot_6.6.0 [ 4.493434] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.515732] fuse init (API version 7.23) [ 4.519049] 9p: Installing v9fs 9p2000 file system support [ 4.534075] async_tx: api initialized (async) [ 4.536020] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 4.537191] io scheduler noop registered [ 4.537759] io scheduler deadline registered [ 4.542016] io scheduler cfq registered (default) [ 4.549585] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 4.553433] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.554611] ACPI: Power Button [PWRF] [ 4.556322] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.557545] ACPI: Sleep Button [SLPF] [ 4.580330] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 4.581298] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.602208] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 4.603127] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.609380] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.632448] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.658375] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.683729] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.709027] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.716571] Non-volatile memory driver v1.3 [ 4.718820] Linux agpgart interface v0.103 [ 4.722749] [drm] Initialized drm 1.1.0 20060810 [ 4.819351] brd: module loaded [ 4.876972] loop: module loaded [ 4.910843] nbd: registered device at major 43 [ 5.055766] drbd: initialized. Version: 8.4.5 (api:1/proto:86-101) [ 5.057395] drbd: built-in [ 5.057780] drbd: registered as block device major 147 [ 5.083033] scsi host0: Virtio SCSI HBA [ 5.119984] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.328823] tsc: Refined TSC clocksource calibration: 2299.916 MHz [ 5.330321] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x2126e5f9bab, max_idle_ns: 440795309779 ns [ 5.780350] st: Version 20101219, fixed bufsize 32768, s/g segs 256 [ 5.782451] osst :I: Tape driver with OnStream support version 0.99.4 [ 5.782451] osst :I: $Id: osst.c,v 1.73 2005/01/01 21:13:34 wriede Exp $ [ 5.789193] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 5.791039] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 5.791337] SCSI Media Changer driver v0.25 [ 5.794659] tun: Universal TUN/TAP device driver, 1.6 [ 5.795693] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 5.797223] tun: (C) 1999-2004 Max Krasnyansky [ 5.799031] sd 0:0:1:0: [sda] Write Protect is off [ 5.801883] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 5.838666] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI [ 5.839724] e100: Copyright(c) 1999-2006 Intel Corporation [ 5.841294] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI [ 5.842201] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 5.843964] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 5.845117] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 5.846901] sky2: driver version 1.30 [ 5.849609] PPP generic driver version 2.4.2 [ 5.851695] PPP BSD Compression module registered [ 5.852711] PPP Deflate Compression module registered [ 5.854057] PPP MPPE Compression module registered [ 5.854854] NET: Registered protocol family 24 [ 5.856332] usbcore: registered new interface driver asix [ 5.857279] usbcore: registered new interface driver ax88179_178a [ 5.858847] usbcore: registered new interface driver cdc_ether [ 5.860154] usbcore: registered new interface driver net1080 [ 5.861264] usbcore: registered new interface driver cdc_subset [ 5.862657] usbcore: registered new interface driver zaurus [ 5.864127] usbcore: registered new interface driver cdc_ncm [ 5.866628] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 5.868585] ehci-pci: EHCI PCI platform driver [ 5.868648] sda: sda1 [ 5.870634] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 5.872191] ohci-pci: OHCI PCI platform driver [ 5.873672] uhci_hcd: USB Universal Host Controller Interface driver [ 5.877516] sd 0:0:1:0: [sda] Attached SCSI disk [ 5.878486] usbcore: registered new interface driver usblp [ 5.878948] usbcore: registered new interface driver usb-storage [ 5.880593] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12 [ 5.881969] i8042: Warning: Keylock active [ 5.883432] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 5.885490] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 5.889545] mousedev: PS/2 mouse device common for all mice [ 5.895192] usbcore: registered new interface driver xpad [ 5.896779] usbcore: registered new interface driver usb_acecad [ 5.897999] usbcore: registered new interface driver aiptek [ 5.899617] usbcore: registered new interface driver gtco [ 5.901092] usbcore: registered new interface driver hanwang [ 5.902944] usbcore: registered new interface driver kbtab [ 5.906307] rtc_cmos 00:00: RTC can wake from S4 [ 5.909325] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0 [ 5.910423] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram [ 5.913028] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11 [ 5.916743] softdog: Software Watchdog Timer: 0.08 initialized. soft_noboot=0 soft_margin=60 sec soft_panic=0 (nowayout=0) [ 5.919103] md: linear personality registered for level -1 [ 5.920526] md: raid0 personality registered for level 0 [ 5.921726] md: raid1 personality registered for level 1 [ 5.922810] md: raid10 personality registered for level 10 [ 5.925067] md: raid6 personality registered for level 6 [ 5.925951] md: raid5 personality registered for level 5 [ 5.926949] md: raid4 personality registered for level 4 [ 5.928194] md: multipath personality registered for level -4 [ 5.929558] md: faulty personality registered for level -5 [ 5.934346] device-mapper: uevent: version 1.0.3