[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.611781] random: sshd: uninitialized urandom read (32 bytes read, 31 bits of entropy available) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 27.155646] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 27.636825] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 28.845762] random: sshd: uninitialized urandom read (32 bytes read, 125 bits of entropy available) [ 28.971881] random: nonblocking pool is initialized Warning: Permanently added '10.128.0.32' (ECDSA) to the list of known hosts. 2018/07/31 17:26:52 parsed 1 programs 2018/07/31 17:26:54 executed programs: 0 [ 63.245403] IPVS: Creating netns size=2552 id=1 [ 63.303418] IPVS: Creating netns size=2552 id=2 [ 63.360855] IPVS: Creating netns size=2552 id=3 [ 63.428375] IPVS: Creating netns size=2552 id=4 [ 63.501477] IPVS: Creating netns size=2552 id=5 [ 63.592658] IPVS: Creating netns size=2552 id=6 [ 63.697754] IPVS: Creating netns size=2552 id=7 [ 63.772998] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 63.807657] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 63.852714] IPVS: Creating netns size=2552 id=8 [ 63.953442] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 63.991095] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 64.008793] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 64.018515] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 64.030855] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 64.088384] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 64.223444] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 64.233530] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 64.262792] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 64.274663] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 64.330569] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 64.394421] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 64.404404] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 64.443929] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 64.457318] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.506496] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 64.514231] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 64.528558] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.559246] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 64.567792] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 64.591930] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 64.606489] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.618798] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.630106] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 64.669996] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 64.695715] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.704308] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.777670] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 64.868030] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 64.875781] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 64.907929] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 64.915463] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 64.925804] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 64.972039] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 64.988645] ip (4336) used greatest stack depth: 24304 bytes left [ 65.025148] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 65.085757] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 65.099987] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 65.126643] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.152246] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 65.165373] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 65.174449] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.193580] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 65.225851] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 65.257618] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 65.268379] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.279071] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 65.304968] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.340080] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 65.358276] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 65.402149] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 65.489697] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 65.537789] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 65.608789] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 65.620617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.650574] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.668470] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 65.701130] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 65.717150] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 65.780095] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.790970] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.835023] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.859526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.086697] ip (4657) used greatest stack depth: 24208 bytes left [ 67.749607] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 67.835642] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 67.964751] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 68.018816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.117998] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.210964] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.226092] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 68.422664] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 68.492053] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.625534] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.749845] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 68.778303] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 68.947184] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.977262] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.167255] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 69.400023] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 2018/07/31 17:27:01 executed programs: 8 2018/07/31 17:27:06 executed programs: 188 2018/07/31 17:27:11 executed programs: 403 [ 82.539290] ================================================================== [ 82.546720] BUG: KASAN: use-after-free in __lock_acquire+0x3c66/0x5270 [ 82.553375] Read of size 8 at addr ffff8800b69e4d20 by task syz-executor3/7927 [ 82.560721] [ 82.562341] CPU: 0 PID: 7927 Comm: syz-executor3 Not tainted 4.4.141-g8ddb600 #12 [ 82.569950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.579295] 0000000000000000 80696662c0d4152d ffff8800b7af7a30 ffffffff81e1002d [ 82.587336] ffffea0002da7800 ffff8800b69e4d20 0000000000000000 ffff8800b69e4d20 [ 82.595385] 0000000000000000 ffff8800b7af7a68 ffffffff81515ae6 ffff8800b69e4d20 [ 82.603461] Call Trace: [ 82.606042] [] dump_stack+0xc1/0x124 [ 82.611403] [] print_address_description+0x6c/0x216 [ 82.618107] [] kasan_report.cold.7+0x175/0x2f7 [ 82.624330] [] ? __lock_acquire+0x3c66/0x5270 [ 82.630459] [] __asan_report_load8_noabort+0x14/0x20 [ 82.637209] [] __lock_acquire+0x3c66/0x5270 [ 82.643170] [] ? dput+0x1f/0x30 [ 82.648084] [] ? __fput+0x401/0x6f0 [ 82.653350] [] ? ____fput+0x15/0x20 [ 82.658622] [] ? task_work_run+0x10f/0x190 [ 82.664496] [] ? exit_to_usermode_loop+0x13d/0x160 [ 82.671069] [] ? __lock_acquire+0xa86/0x5270 [ 82.677103] [] ? debug_check_no_locks_freed+0x210/0x210 [ 82.684091] [] ? debug_check_no_locks_freed+0x210/0x210 [ 82.691086] [] ? debug_check_no_obj_freed+0x2ec/0x940 [ 82.697912] [] lock_acquire+0x15e/0x450 [ 82.703527] [] ? lock_sock_nested+0x43/0x120 [ 82.709569] [] ? get_parent_ip+0xd/0x50 [ 82.715187] [] ? sock_release+0x1c0/0x1c0 [ 82.720962] [] _raw_spin_lock_bh+0x3a/0x50 [ 82.726821] [] ? lock_sock_nested+0x43/0x120 [ 82.732854] [] lock_sock_nested+0x43/0x120 [ 82.738720] [] pppol2tp_release+0x50/0x310 [ 82.744588] [] sock_release+0x96/0x1c0 [ 82.750098] [] sock_close+0x16/0x20 [ 82.755360] [] __fput+0x235/0x6f0 [ 82.760455] [] ____fput+0x15/0x20 [ 82.765535] [] task_work_run+0x10f/0x190 [ 82.771221] [] exit_to_usermode_loop+0x13d/0x160 [ 82.777600] [] do_fast_syscall_32+0x620/0x8b0 [ 82.783722] [] sysenter_flags_fixed+0xd/0x17 [ 82.789762] [ 82.791376] Allocated by task 7934: [ 82.794976] [] save_stack_trace+0x26/0x50 [ 82.800872] [] save_stack+0x43/0xd0 [ 82.806250] [] kasan_kmalloc+0xc7/0xe0 [ 82.811898] [] __kmalloc+0x124/0x310 [ 82.817359] [] sk_prot_alloc+0x204/0x300 [ 82.823170] [] sk_alloc+0x3a/0x3a0 [ 82.828459] [] pppol2tp_create+0x33/0x1f0 [ 82.834371] [] pppox_create+0xf6/0x200 [ 82.840006] [] __sock_create+0x2f0/0x5f0 [ 82.845823] [] SyS_socket+0xf0/0x1b0 [ 82.851302] [] do_fast_syscall_32+0x326/0x8b0 [ 82.857553] [] sysenter_flags_fixed+0xd/0x17 [ 82.863717] [ 82.865329] Freed by task 7927: [ 82.868580] [] save_stack_trace+0x26/0x50 [ 82.874474] [] save_stack+0x43/0xd0 [ 82.879866] [] kasan_slab_free+0x72/0xc0 [ 82.885674] [] kfree+0xf4/0x310 [ 82.890697] [] sk_destruct+0x407/0x4c0 [ 82.896326] [] __sk_free+0x4f/0x220 [ 82.901700] [] sk_free+0x30/0x40 [ 82.906816] [] pppol2tp_session_sock_put+0x5f/0x70 [ 82.913498] [] l2tp_tunnel_closeall+0x23c/0x350 [ 82.919936] [] l2tp_udp_encap_destroy+0x8b/0xf0 [ 82.926365] [] udpv6_destroy_sock+0xb1/0xd0 [ 82.932429] [] sk_common_release+0x6d/0x300 [ 82.938519] [] udp_lib_close+0x15/0x20 [ 82.944165] [] inet_release+0xff/0x1d0 [ 82.949801] [] inet6_release+0x50/0x70 [ 82.955437] [] sock_release+0x96/0x1c0 [ 82.961088] [] sock_close+0x16/0x20 [ 82.966581] [] __fput+0x235/0x6f0 [ 82.971799] [] ____fput+0x15/0x20 [ 82.977002] [] task_work_run+0x10f/0x190 [ 82.982834] [] exit_to_usermode_loop+0x13d/0x160 [ 82.989368] [] do_fast_syscall_32+0x620/0x8b0 [ 82.995607] [] sysenter_flags_fixed+0xd/0x17 [ 83.001781] [ 83.003394] The buggy address belongs to the object at ffff8800b69e4c80 [ 83.003394] which belongs to the cache kmalloc-2048 of size 2048 [ 83.016203] The buggy address is located 160 bytes inside of [ 83.016203] 2048-byte region [ffff8800b69e4c80, ffff8800b69e5480) [ 83.028147] The buggy address belongs to the page: [ 83.034010] kasan: CONFIG_KASAN_INLINE enabled [ 83.038482] kasan: GPF could be caused bySeaBIOS (version 1.8.2-20171012_061934-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 0x000f2290: 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: 0x00000000014cdd58 output: 0x0000000001000000 output_len: 0x0000000004008a90 run_size: 0x0000000005752000 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 4.4.141-g8ddb600 (syzkaller@ci) (gcc version 8.0.1 20180413 (experimental) (GCC) ) #12 SMP PREEMPT Tue Jul 31 00:57:48 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 0x000f2310-0x000f231f] mapped at [ffff8800000f2310] [ 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 0x00000000000F22D0 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 2004624994 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 s134024 r8192 d29816 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: 6579092K/7863876K available (41770K kernel code, 6303K rwdata, 9060K rodata, 1864K init, 23696K bss, 1284784K 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 [ 1.212825] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.213985] pid_max: default: 32768 minimum: 301 [ 1.214696] ACPI: Core revision 20150930 [ 1.630239] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.631501] Security Framework initialized [ 1.632072] SELinux: Initializing. [ 1.632799] AppArmor: AppArmor disabled by boot time parameter [ 1.633725] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.634654] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.638258] Initializing cgroup subsys io [ 1.638875] Initializing cgroup subsys freezer [ 1.639524] Initializing cgroup subsys hugetlb [ 1.640163] Initializing cgroup subsys debug [ 1.640897] CPU: Physical Processor ID: 0 [ 1.642837] mce: CPU supports 32 MCE banks [ 1.643615] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.644446] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.645352] Spectre V2 : Mitigation: Full generic retpoline [ 1.648682] Freeing SMP alternatives memory: 48K [ 1.658873] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.772197] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.773697] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.862495] x86: Booting SMP configuration: [ 1.863394] .... node #0, CPUs: #1 [ 1.864344] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.870308] x86: Booted up 1 node, 2 CPUs [ 1.870932] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.875041] devtmpfs: initialized [ 1.885291] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.886735] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.888455] xor: automatically using best checksumming function: [ 1.901516] kworker/u4:0 (21) used greatest stack depth: 27920 bytes left [ 1.982237] avx : 23599.600 MB/sec [ 1.983441] RTC time: 17:27:18, date: 07/31/18 [ 1.986637] NET: Registered protocol family 16 [ 1.987767] schedtune: init normalization constants... [ 1.988473] schedtune: no energy model data [ 1.989051] schedtune: disabled! [ 1.993159] kworker/u4:0 (29) used greatest stack depth: 27616 bytes left [ 2.022443] cpuidle: using governor ladder [ 2.050230] cpuidle: using governor menu [ 2.051678] ACPI: bus type PCI registered [ 2.052324] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 2.055510] PCI: Using configuration type 1 for base access [ 2.060770] kworker/u4:1 (42) used greatest stack depth: 27424 bytes left [ 2.278803] kworker/u4:1 (442) used greatest stack depth: 27024 bytes left [ 2.512273] raid6: sse2x1 gen() 4800 MB/s [ 2.682287] raid6: sse2x1 xor() 2385 MB/s [ 2.852290] raid6: sse2x2 gen() 7609 MB/s [ 3.022304] raid6: sse2x2 xor() 4194 MB/s [ 3.192302] raid6: sse2x4 gen() 9874 MB/s [ 3.362318] raid6: sse2x4 xor() 5757 MB/s [ 3.532329] raid6: avx2x1 gen() 9472 MB/s [ 3.702335] raid6: avx2x2 gen() 14703 MB/s [ 3.872351] raid6: avx2x4 gen() 19283 MB/s [ 3.873040] raid6: using algorithm avx2x4 gen() 19283 MB/s [ 3.873818] raid6: using avx2x2 recovery algorithm [ 3.875165] ACPI: Added _OSI(Module Device) [ 3.875853] ACPI: Added _OSI(Processor Device) [ 3.876489] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.877135] ACPI: Added _OSI(Processor Aggregator Device) [ 3.904111] ACPI: Executed 2 blocks of module-level executable AML code [ 4.833359] ACPI: Interpreter enabled [ 4.834352] ACPI: (supports S0 S3 S4 S5) [ 4.834905] ACPI: Using IOAPIC for interrupt routing [ 4.836177] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 6.071433] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 6.072473] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 6.073940] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 6.074945] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 6.104266] PCI host bridge to bus 0000:00 [ 6.104939] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 6.105877] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 6.106873] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 6.107899] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 6.108998] pci_bus 0000:00: root bus resource [bus 00-ff] [ 6.148165] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 6.236721] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 6.243350] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 6.249583] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 6.255873] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 6.259596] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 6.845001] ACPI: Enabled 16 GPEs in block 00 to 0F [ 6.848700] vgaarb: loaded [ 6.852047] SCSI subsystem initialized [ 6.864430] ACPI: bus type USB registered [ 6.866356] usbcore: registered new interface driver usbfs [ 6.867820] usbcore: registered new interface driver hub [ 6.868863] usbcore: registered new device driver usb [ 6.871602] pps_core: LinuxPPS API ver. 1 registered [ 6.872489] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 6.874200] PTP clock support registered [ 6.876126] ioremap error for 0xbfffd000-0xc0000000, requested 0x2, got 0x0 [ 6.877297] dmi: Firmware registration failed. [ 6.878818] Advanced Linux Sound Architecture Driver Initialized. [ 6.880459] PCI: Using ACPI for IRQ routing [ 6.889110] NetLabel: Initializing [ 6.889615] NetLabel: domain hash size = 128 [ 6.890234] NetLabel: protocols = UNLABELED CIPSOv4 [ 6.891199] NetLabel: unlabeled traffic allowed by default [ 6.893831] amd_nb: Cannot enumerate AMD northbridges [ 6.894692] clocksource: Switched to clocksource kvm-clock [ 7.088971] pnp: PnP ACPI init [ 7.113414] pnp: PnP ACPI: found 7 devices [ 7.126891] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 7.128517] NET: Registered protocol family 2 [ 7.131921] TCP established hash table entries: 65536 (order: 7, 524288 bytes) [ 7.133268] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes) [ 7.140733] TCP: Hash tables configured (established 65536 bind 65536) [ 7.141901] UDP hash table entries: 4096 (order: 7, 655360 bytes) [ 7.143518] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) [ 7.147099] NET: Registered protocol family 1 [ 7.147837] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 7.149654] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 7.150533] software IO TLB [mem 0xbbff3000-0xbfff3000] (64MB) mapped at [ffff8800bbff3000-ffff8800bfff2fff] [ 7.152498] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 10737418240 ms ovfl timer [ 7.153738] hw unit of domain pp0-core 2^-0 Joules [ 7.154399] hw unit of domain package 2^-0 Joules [ 7.155083] hw unit of domain dram 2^-16 Joules [ 7.160981] Scanning for low memory corruption every 60 seconds [ 7.170097] audit: initializing netlink subsys (disabled) [ 7.171124] audit: type=2000 audit(1533058043.963:1): initialized [ 7.178687] Initialise system trusted keyring [ 7.180669] HugeTLB registered 2 MB page size, pre-allocated 0 pages