[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 20.107020] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 23.028815] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 23.224937] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 23.863659] random: sshd: uninitialized urandom read (32 bytes read, 59 bits of entropy available) [ 39.361168] random: sshd: uninitialized urandom read (32 bytes read, 69 bits of entropy available) Warning: Permanently added '10.128.10.35' (ECDSA) to the list of known hosts. [ 45.014320] random: sshd: uninitialized urandom read (32 bytes read, 71 bits of entropy available) 2018/08/24 19:11:13 parsed 1 programs [ 46.221916] random: cc1: uninitialized urandom read (8 bytes read, 73 bits of entropy available) 2018/08/24 19:11:15 executed programs: 0 [ 48.101002] IPVS: Creating netns size=2552 id=1 [ 48.158536] IPVS: Creating netns size=2552 id=2 [ 48.231875] IPVS: Creating netns size=2552 id=3 [ 48.322573] IPVS: Creating netns size=2552 id=4 [ 48.428370] IPVS: Creating netns size=2552 id=5 [ 48.573407] IPVS: Creating netns size=2552 id=6 [ 48.695830] IPVS: Creating netns size=2552 id=7 [ 48.819891] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 48.888353] IPVS: Creating netns size=2552 id=8 [ 48.898209] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 49.230911] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.244191] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 49.329423] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 49.352440] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 49.564512] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.651662] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 49.662643] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 49.684634] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.762081] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 49.773190] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 49.781931] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 49.893136] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 49.900700] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.004018] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.112354] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.121521] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.199791] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.208508] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.254434] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.263720] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.322933] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 50.333179] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.459874] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.541249] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.582321] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.596266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.666761] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.675799] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.684948] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.744009] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.753384] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.822023] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 50.862588] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.879497] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.954047] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.973328] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.989133] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.997684] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.037037] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 51.054342] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.110335] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 51.121216] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 51.139143] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 51.166258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.273643] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.323396] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.367075] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 51.384805] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.433489] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.453791] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 51.480129] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 51.501368] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 51.602170] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.633446] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.701741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.724511] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.779084] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.787166] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.883886] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 51.952407] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 52.037982] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.104579] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 54.084930] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 54.296803] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 54.314874] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 54.398695] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.502292] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.561779] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.801009] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 54.942214] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 55.046354] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.192002] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 55.206600] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.334959] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 55.416724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.512189] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 55.540617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.733857] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 2018/08/24 19:11:24 executed programs: 8 2018/08/24 19:11:29 executed programs: 226 2018/08/24 19:11:34 executed programs: 474 2018/08/24 19:11:39 executed programs: 703 2018/08/24 19:11:44 executed programs: 948 2018/08/24 19:11:49 executed programs: 1186 2018/08/24 19:11:54 executed programs: 1409 [ 91.429460] ================================================================== [ 91.436870] BUG: KASAN: use-after-free in __lock_acquire+0x3c66/0x5270 [ 91.443525] Read of size 8 at addr ffff8801cfe2ef20 by task syz-executor2/12550 [ 91.450954] [ 91.452577] CPU: 1 PID: 12550 Comm: syz-executor2 Not tainted 4.4.152-ge15716b #88 [ 91.460266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.469609] 0000000000000000 d864d20f4a962a7e ffff8801d7207a70 ffffffff81e15fed [ 91.477655] ffffea00073f8a00 ffff8801cfe2ef20 0000000000000000 ffff8801cfe2ef20 [ 91.485658] 0000000000000000 ffff8801d7207aa8 ffffffff8151b489 ffff8801cfe2ef20 [ 91.493690] Call Trace: [ 91.496252] [] dump_stack+0xc1/0x124 [ 91.501598] [] print_address_description+0x6c/0x216 [ 91.508245] [] kasan_report.cold.7+0x175/0x2f7 [ 91.514456] [] ? __lock_acquire+0x3c66/0x5270 [ 91.520581] [] __asan_report_load8_noabort+0x14/0x20 [ 91.527327] [] __lock_acquire+0x3c66/0x5270 [ 91.533289] [] ? trace_hardirqs_on+0x10/0x10 [ 91.539322] [] ? __lock_acquire+0xa86/0x5270 [ 91.545355] [] ? trace_hardirqs_on+0x10/0x10 [ 91.551389] [] ? __lock_is_held+0xa2/0xf0 [ 91.557191] [] lock_acquire+0x15e/0x450 [ 91.562806] [] ? lock_sock_nested+0x43/0x120 [ 91.568854] [] ? get_parent_ip+0xd/0x50 [ 91.574454] [] _raw_spin_lock_bh+0x3a/0x50 [ 91.580312] [] ? lock_sock_nested+0x43/0x120 [ 91.586345] [] lock_sock_nested+0x43/0x120 [ 91.592213] [] ? locks_remove_file+0x211/0x2d0 [ 91.598431] [] pppol2tp_release+0x50/0x310 [ 91.604301] [] __sock_release+0xd9/0x260 [ 91.609988] [] ? __sock_release+0x260/0x260 [ 91.616195] [] sock_close+0x19/0x20 [ 91.621464] [] __fput+0x235/0x6f0 [ 91.626543] [] ____fput+0x15/0x20 [ 91.631623] [] task_work_run+0x10f/0x190 [ 91.637327] [] exit_to_usermode_loop+0x13d/0x160 [ 91.643709] [] syscall_return_slowpath+0x1b5/0x1f0 [ 91.650264] [] int_ret_from_sys_call+0x25/0xa3 [ 91.656466] [ 91.658068] Allocated by task 12553: [ 91.661753] [] save_stack_trace+0x26/0x50 [ 91.667652] [] save_stack+0x43/0xd0 [ 91.673024] [] kasan_kmalloc+0xc7/0xe0 [ 91.678675] [] __kmalloc+0x124/0x310 [ 91.684143] [] sk_prot_alloc+0x204/0x300 [ 91.689963] [] sk_alloc+0x3a/0x3a0 [ 91.695250] [] pppol2tp_create+0x33/0x1f0 [ 91.701149] [] pppox_create+0xf6/0x200 [ 91.706793] [] __sock_create+0x2f2/0x5f0 [ 91.712611] [] SyS_socket+0xf0/0x1b0 [ 91.718083] [] entry_SYSCALL_64_fastpath+0x22/0x9e [ 91.724776] [ 91.726398] Freed by task 12550: [ 91.729747] [] save_stack_trace+0x26/0x50 [ 91.735653] [] save_stack+0x43/0xd0 [ 91.741027] [] kasan_slab_free+0x72/0xc0 [ 91.746884] [] kfree+0xf4/0x310 [ 91.751907] [] sk_destruct+0x407/0x4c0 [ 91.757585] [] __sk_free+0x4f/0x220 [ 91.763006] [] sk_free+0x30/0x40 [ 91.768121] [] pppol2tp_session_sock_put+0x5f/0x70 [ 91.774819] [] l2tp_tunnel_closeall+0x23c/0x350 [ 91.781242] [] l2tp_udp_encap_destroy+0x8b/0xf0 [ 91.787675] [] udpv6_destroy_sock+0xb1/0xd0 [ 91.793743] [] sk_common_release+0x6d/0x300 [ 91.799811] [] udp_lib_close+0x15/0x20 [ 91.805446] [] inet_release+0xff/0x1d0 [ 91.811099] [] inet6_release+0x50/0x70 [ 91.816739] [] __sock_release+0xd9/0x260 [ 91.822558] [] sock_close+0x19/0x20 [ 91.828078] [] __fput+0x235/0x6f0 [ 91.833293] [] ____fput+0x15/0x20 [ 91.838491] [] task_work_run+0x10f/0x190 [ 91.844316] [] exit_to_usermode_loop+0x13d/0x160 [ 91.850843] [] syscall_return_slowpath+0x1b5/0x1f0 [ 91.857534] [] int_ret_from_sys_call+0x25/0xa3 [ 91.863862] [ 91.865467] The buggy address belongs to the object at ffff8801cfe2ee80 [ 91.865467] which belongs to the cache kmalloc-2048 of size 2048 [ 91.878271] The buggy address is located 160 bytes inside of [ 91.878271] 2048-byte region [ffff8801cfe2ee80, ffff8801cfe2f680) [ 91.890205] The buggy address belongs to the page: SeaBIOS (version 1.8.2-20180718_090847-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 256 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f2280: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x0000000003b4f26e input_len: 0x00000000014d0c0b output: 0x0000000001000000 output_len: 0x000000000400ba90 run_size: 0x0000000005755000 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 4.4.152-ge15716b (syzkaller@ci) (gcc version 8.0.1 20180413 (experimental) (GCC) ) #88 SMP PREEMPT Fri Aug 24 18:21:12 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=140 nopti [ 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] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfff2fff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfff3000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] Kernel/User page tables isolation: disabled [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfff3 max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f2300-0x000f230f] mapped at [ffff8800000f2300] [ 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 0x00000000000F22C0 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFF3430 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFCF60 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFF3470 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFCF00 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFCF00 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFF65F0 00690D (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFF5D10 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFF5CE0 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] ACPI: SRAT 0x00000000BFFF4C30 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 2532626262 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfff2fff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfff3000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s134152 r8192 d29688 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935227 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=140 nopti [ 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: 6579080K/7863876K available (41801K kernel code, 6308K rwdata, 9068K rodata, 1868K init, 23696K bss, 1284796K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 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 [ 1.166222] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.167508] pid_max: default: 32768 minimum: 301 [ 1.168269] ACPI: Core revision 20150930 [ 1.599104] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.600424] Security Framework initialized [ 1.601012] SELinux: Initializing. [ 1.601659] AppArmor: AppArmor disabled by boot time parameter [ 1.602594] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.603547] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.607282] Initializing cgroup subsys io [ 1.607934] Initializing cgroup subsys freezer [ 1.608611] Initializing cgroup subsys hugetlb [ 1.609309] Initializing cgroup subsys debug [ 1.610074] CPU: Physical Processor ID: 0 [ 1.611490] mce: CPU supports 32 MCE banks [ 1.612292] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.613138] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.614065] Spectre V2 : Mitigation: Full generic retpoline [ 1.614819] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 1.616035] Speculative Store Bypass: Vulnerable [ 1.619619] Freeing SMP alternatives memory: 48K [ 1.630400] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.745589] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.747211] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.835921] x86: Booting SMP configuration: [ 1.836592] .... node #0, CPUs: #1 [ 1.837453] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.842686] x86: Booted up 1 node, 2 CPUs [ 1.843335] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.847647] devtmpfs: initialized [ 1.858102] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.859557] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.861301] xor: automatically using best checksumming function: [ 1.874074] kworker/u4:0 (21) used greatest stack depth: 27920 bytes left [ 1.955644] avx : 24822.800 MB/sec [ 1.956984] RTC time: 19:12:04, date: 08/24/18 [ 1.960157] NET: Registered protocol family 16 [ 1.961391] schedtune: init normalization constants... [ 1.962139] schedtune: no energy model data [ 1.962720] schedtune: disabled! [ 1.967219] kworker/u4:0 (31) used greatest stack depth: 27616 bytes left [ 1.995950] cpuidle: using governor ladder [ 2.025696] cpuidle: using governor menu [ 2.027119] ACPI: bus type PCI registered [ 2.027727] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 2.030907] PCI: Using configuration type 1 for base access [ 2.039070] kworker/u4:1 (47) used greatest stack depth: 27424 bytes left [ 2.299094] kworker/u4:2 (485) used greatest stack depth: 27024 bytes left [ 2.525656] raid6: sse2x1 gen() 4446 MB/s [ 2.695653] raid6: sse2x1 xor() 2326 MB/s [ 2.865646] raid6: sse2x2 gen() 6967 MB/s [ 3.035671] raid6: sse2x2 xor() 3917 MB/s [ 3.205658] raid6: sse2x4 gen() 9358 MB/s [ 3.375663] raid6: sse2x4 xor() 5260 MB/s [ 3.545668] raid6: avx2x1 gen() 9292 MB/s [ 3.715706] raid6: avx2x2 gen() 13241 MB/s [ 3.885700] raid6: avx2x4 gen() 17936 MB/s [ 3.886394] raid6: using algorithm avx2x4 gen() 17936 MB/s [ 3.887158] raid6: using avx2x2 recovery algorithm [ 3.888595] ACPI: Added _OSI(Module Device) [ 3.889277] ACPI: Added _OSI(Processor Device) [ 3.889912] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.890577] ACPI: Added _OSI(Processor Aggregator Device) [ 3.918712] ACPI: Executed 2 blocks of module-level executable AML code [ 4.882858] ACPI: Interpreter enabled [ 4.883913] ACPI: (supports S0 S3 S4 S5) [ 4.884505] ACPI: Using IOAPIC for interrupt routing [ 4.885747] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 6.194067] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 6.195104] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 6.196679] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 6.197727] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 6.227300] PCI host bridge to bus 0000:00 [ 6.227975] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 6.228927] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 6.229866] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 6.230912] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 6.232041] pci_bus 0000:00: root bus resource [bus 00-ff] [ 6.269670] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 6.352411] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 6.358750] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 6.364753] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 6.371407] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 6.375012] ACPI: PCI Interrupt Link [LNKS] (IRQs *9)