[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.352562] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 24.091532] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available) [ 24.370709] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available) [ 25.692681] random: sshd: uninitialized urandom read (32 bytes read, 119 bits of entropy available) [ 45.360454] random: nonblocking pool is initialized Warning: Permanently added '10.128.0.6' (ECDSA) to the list of known hosts. 2018/07/30 13:15:32 parsed 1 programs 2018/07/30 13:15:35 executed programs: 0 [ 70.185728] IPVS: Creating netns size=2552 id=1 [ 70.255961] IPVS: Creating netns size=2552 id=2 [ 70.312609] IPVS: Creating netns size=2552 id=3 [ 70.377585] IPVS: Creating netns size=2552 id=4 [ 70.449915] IPVS: Creating netns size=2552 id=5 [ 70.552353] IPVS: Creating netns size=2552 id=6 [ 70.640731] IPVS: Creating netns size=2552 id=7 [ 70.841155] IPVS: Creating netns size=2552 id=8 [ 70.957336] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 71.012704] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 71.028443] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 71.094964] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 71.198191] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 71.283320] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 71.363458] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 71.371533] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 71.440493] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 71.449338] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 71.458138] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 71.544257] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 71.777187] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 71.817250] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 71.841903] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 71.857958] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 71.893965] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 71.910033] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 71.975851] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 71.986054] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 71.998241] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 72.043343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.057029] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.120729] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 72.128702] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 72.231733] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 72.342613] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.352495] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 72.435403] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 72.455741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.521007] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 72.534035] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 72.549214] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 72.557169] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 72.572611] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 72.621513] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 72.629914] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 72.637859] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 72.650258] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 72.736114] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.748933] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.781170] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 72.867127] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.883121] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 72.902096] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.976220] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 72.997301] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 73.019853] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 73.078049] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.135899] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.155837] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 73.216812] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 73.235080] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 73.303730] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 73.359441] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.394898] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.463794] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 73.529832] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 73.645205] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.663068] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.682389] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 73.745023] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 73.816074] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.882456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 76.907844] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 77.090329] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 77.122441] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.358256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.457029] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 77.477414] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 77.586118] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 77.707362] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.733545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.787010] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.944816] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 78.156231] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 78.230573] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.293866] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 78.376021] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.514953] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 2018/07/30 13:15:43 executed programs: 8 [ 82.411855] ================================================================== [ 82.419253] BUG: KASAN: use-after-free in l2tp_session_queue_purge+0xf4/0x100 [ 82.426515] Read of size 4 at addr ffff8801d1f60c80 by task syz-executor3/7092 [ 82.433887] [ 82.435506] CPU: 1 PID: 7092 Comm: syz-executor3 Not tainted 4.4.141-g9664bde #11 [ 82.443156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.452493] 0000000000000000 dcaa42bdbc117951 ffff8800b1877c78 ffffffff81e0e18d [ 82.460528] ffffea000747d800 ffff8801d1f60c80 0000000000000000 ffff8801d1f60c80 [ 82.468558] ffffffff82f1a380 ffff8800b1877cb0 ffffffff81515a86 ffff8801d1f60c80 [ 82.476570] Call Trace: [ 82.479146] [] dump_stack+0xc1/0x124 [ 82.484495] [] ? sock_release+0x1c0/0x1c0 [ 82.490286] [] print_address_description+0x6c/0x216 [ 82.496939] [] ? sock_release+0x1c0/0x1c0 [ 82.502726] [] kasan_report.cold.7+0x175/0x2f7 [ 82.508955] [] ? l2tp_session_queue_purge+0xf4/0x100 [ 82.515700] [] __asan_report_load4_noabort+0x14/0x20 [ 82.522450] [] l2tp_session_queue_purge+0xf4/0x100 [ 82.529020] [] ? sock_release+0x1c0/0x1c0 [ 82.534892] [] pppol2tp_release+0x1ff/0x310 [ 82.540851] [] sock_release+0x96/0x1c0 [ 82.546385] [] sock_close+0x16/0x20 [ 82.551659] [] __fput+0x235/0x6f0 [ 82.556754] [] ____fput+0x15/0x20 [ 82.561849] [] task_work_run+0x10f/0x190 [ 82.567545] [] exit_to_usermode_loop+0x13d/0x160 [ 82.573931] [] do_fast_syscall_32+0x620/0x8b0 [ 82.580072] [] sysenter_flags_fixed+0xd/0x17 [ 82.586101] [ 82.587706] Allocated by task 7099: [ 82.591300] [] save_stack_trace+0x26/0x50 [ 82.597197] [] save_stack+0x43/0xd0 [ 82.602582] [] kasan_kmalloc+0xc7/0xe0 [ 82.608229] [] __kmalloc+0x124/0x310 [ 82.613711] [] l2tp_session_create+0x39/0x1030 [ 82.620072] [] pppol2tp_connect+0x10f0/0x1910 [ 82.626335] [] SYSC_connect+0x1b8/0x300 [ 82.632053] [] SyS_connect+0x24/0x30 [ 82.637521] [] do_fast_syscall_32+0x326/0x8b0 [ 82.643775] [] sysenter_flags_fixed+0xd/0x17 [ 82.649947] [ 82.651553] Freed by task 7107: [ 82.654811] [] save_stack_trace+0x26/0x50 [ 82.660733] [] save_stack+0x43/0xd0 [ 82.666125] [] kasan_slab_free+0x72/0xc0 [ 82.671940] [] kfree+0xf4/0x310 [ 82.676976] [] l2tp_session_free+0x170/0x200 [ 82.683143] [] l2tp_tunnel_closeall+0x2b9/0x350 [ 82.689586] [] l2tp_udp_encap_destroy+0x8b/0xf0 [ 82.696006] [] udpv6_destroy_sock+0xb1/0xd0 [ 82.702081] [] sk_common_release+0x6d/0x300 [ 82.708153] [] udp_lib_close+0x15/0x20 [ 82.713785] [] inet_release+0xff/0x1d0 [ 82.719427] [] inet6_release+0x50/0x70 [ 82.725087] [] sock_release+0x96/0x1c0 [ 82.730730] [] sock_close+0x16/0x20 [ 82.736106] [] __fput+0x235/0x6f0 [ 82.741302] [] ____fput+0x15/0x20 [ 82.746522] [] task_work_run+0x10f/0x190 [ 82.752333] [] exit_to_usermode_loop+0x13d/0x160 [ 82.758841] [] do_fast_syscall_32+0x620/0x8b0 [ 82.765092] [] sysenter_flags_fixed+0xd/0x17 [ 82.771256] [ 82.772863] The buggy address belongs to the object at ffff8801d1f60c80 [ 82.772863] which belongs to the cache kmalloc-512 of size 512 [ 82.785499] The buggy address is located 0 bytes inside of [ 82.785499] 512-byte region [ffff8801d1f60c80, ffff8801d1f60e80) [ 82.797173] The buggy address belongs to the page: [ 82.802437] mm/pgtable-generic.c:33: bad pmd ffff8800b1840dd8(ffff8800b1840e18) [ 82.819075] BUG: unable to handle kernel paging request at fffffffe1451c540 [ 82.826456] IP: [] cpuacct_charge+0x155/0x380 [ 82.832731] PGD 440f067 PUD 0 [ 82.836183] Oops: 0000 [#1] PREEMPT SMP KASAN [ 82.841183] Dumping ftrace buffer: [ 82.844707] (ftrace buffer empty) [ 82.848407] Modules linked in: [ 82.851727] CPU: 0 PID: 3571 Comm: rsyslogd Not tainted 4.4.141-g9664bde #11 [ 82.858897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.868416] task: ffff8800b3649800 task.stack: ffff8800b3118000 [ 82.874465] RIP: 0010:[] [] cpuacct_charge+0x155/0x380 [ 82.883095] RSP: 0000:ffff8800b311f750 EFLAGS: 00010046 [ 82.888593] RAX: 1ffffffff089500f RBX: 0000000000018528 RCX: ffffffff84a15140 [ 82.895862] RDX: fffffbffc28a38a8 RSI: fffffffe1451c540 RDI: ffffffff844a8078 [ 82.903129] RBP: ffff8800b311f790 R08: ffff8800b364a1a0 R09: 0000000000000001 [ 82.910397] R10: 0000000000000001 R11: ffff8800b3649800 R12: ffffffff844a7fa0 [ 82.917666] R13: dffffc0000000000 R14: 000000000f20b0cb R15: ffffffffd1f60e80 [ 82.924934] FS: 00007fe6a6400700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 82.933179] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.939079] CR2: fffffffe1451c540 CR3: 00000001d0399000 CR4: 00000000001606f0 [ 82.946351] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.953669] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.960930] Stack: [ 82.963098] ffffffff81224c00 0000000000000046 0000000000000003 ffff8801cec7c860 [ 82.971149] ffff8801cec7c800 000000000f20b0cb ffff8801cec7c8b0 0000000000000000 [ 82.979235] ffff8800b311f7d8 ffffffff811d9279 0000000000000005 ffff8801db31f4d8 [ 82.987302] Call Trace: [ 82.989884] [] ? cpuacct_charge+0x60/0x380 [ 82.995771] [] update_curr+0x2c9/0x6d0 [ 83.001314] [] enqueue_task_fair+0x2fa/0x2790 [ 83.007464] [] activate_task+0x14d/0x280 [ 83.013185] [] ttwu_do_activate.constprop.109+0xbf/0x1e0 [ 83.020300] [] try_to_wake_up+0x660/0xf00 [ 83.026104] [] wake_up_state+0x10/0x20 [ 83.031646] [] signal_wake_up_state+0x44/0x70 [ 83.037797] [] zap_process+0x1c9/0x290 [ 83.043339] [] do_coredump+0x68f/0x2950 [ 83.048968] [] ? debug_check_no_obj_freed+0x164/0x940 [ 83.055817] [] ? dump_align+0x80/0x80 [ 83.061273] [] ? debug_check_no_obj_freed+0x2ec/0x940 [ 83.068118] [] ? check_preemption_disabled+0x3b/0x170 [ 83.074962] [] ? __lock_is_held+0xa2/0xf0 [ 83.080768] [] ? __sigqueue_free.part.28+0x51/0x60 [ 83.088302] [] ? __sigqueue_free.part.28+0x51/0x60 [ 83.094892] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 83.101739] [] ? kmem_cache_free+0x2b4/0x340 [ 83.107805] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 83.114744] [] get_signal+0x5be/0x14b0 [ 83.120288] [] ? force_sig_info+0x23e/0x310 [ 83.126266] [] do_signal+0x8b/0x1d30 [ 83.131637] [] ? is_prefetch.isra.20+0x390/0x390 [ 83.138069] [] ? setup_sigcontext+0x780/0x780 [ 83.144224] [] ? __lock_is_held+0xa2/0xf0 [ 83.150029] [] ? __bad_area_nosemaphore+0x21e/0x310 [ 83.156702] [] ? exit_to_usermode_loop+0xe4/0x160 [ 83.163206] [] exit_to_usermode_loop+0x11a/0x160 [ 83.169619] [] prepare_exit_to_usermode+0xe3/0x100 [ 83.176204] [] retint_user+0x8/0x3c [ 83.181470] Code: 49 8d bc 24 d8 00 00 00 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 c4 01 00 00 49 8b 9c 24 d8 00 00 00 80 3a 00 0f 85 8f 01 00 00 <4a> 03 1c f9 48 89 d8 48 c1 e8 03 42 80 3c 28 00 0f 85 be 01 00 [ 83.209202] RIP [] cpuacct_charge+0x155/0x380 [ 83.215482] RSP [ 83.219098] CR2: fffffffe1451c540 [ 83.222547] ---[ end trace 19702cc203640a5e ]--- [ 83.227315] Kernel panic - not syncing: Fatal exception SeaBIOS (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: 0x0000000003b5126e input_len: 0x00000000014cc863 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-g9664bde (syzkaller@ci) (gcc version 8.0.1 20180413 (experimental) (GCC) ) #11 SMP PREEMPT Sat Jul 28 10:32:26 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 2339967391 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 (41762K kernel code, 6303K rwdata, 9052K 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 [ 1.175056] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.176399] pid_max: default: 32768 minimum: 301 [ 1.177217] ACPI: Core revision 20150930 [ 1.597132] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.598450] Security Framework initialized [ 1.599084] SELinux: Initializing. [ 1.599765] AppArmor: AppArmor disabled by boot time parameter [ 1.600699] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.601701] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.605408] Initializing cgroup subsys io [ 1.606111] Initializing cgroup subsys freezer [ 1.606783] Initializing cgroup subsys hugetlb [ 1.607459] Initializing cgroup subsys debug [ 1.608235] CPU: Physical Processor ID: 0 [ 1.609990] mce: CPU supports 32 MCE banks [ 1.610799] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.611729] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.612637] Spectre V2 : Mitigation: Full generic retpoline [ 1.615768] Freeing SMP alternatives memory: 48K [ 1.629401] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.744387] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.746015] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.834739] x86: Booting SMP configuration: [ 1.835501] .... node #0, CPUs: #1 [ 1.836357] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.841083] x86: Booted up 1 node, 2 CPUs [ 1.841763] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.846645] devtmpfs: initialized [ 1.857102] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.858891] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.860735] xor: automatically using best checksumming function: [ 1.872330] kworker/u4:0 (21) used greatest stack depth: 27920 bytes left [ 1.954427] avx : 23524.800 MB/sec [ 1.955744] RTC time: 13:15:54, date: 07/30/18 [ 1.958892] NET: Registered protocol family 16 [ 1.960081] schedtune: init normalization constants... [ 1.960864] schedtune: no energy model data [ 1.961696] schedtune: disabled! [ 1.994641] cpuidle: using governor ladder [ 2.024707] cpuidle: using governor menu [ 2.026130] ACPI: bus type PCI registered [ 2.026885] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 2.029971] PCI: Using configuration type 1 for base access [ 2.040361] kworker/u4:1 (59) used greatest stack depth: 27424 bytes left [ 2.159518] kworker/u4:2 (260) used greatest stack depth: 27024 bytes left [ 2.484421] raid6: sse2x1 gen() 4619 MB/s [ 2.654420] raid6: sse2x1 xor() 2600 MB/s [ 2.824428] raid6: sse2x2 gen() 7032 MB/s [ 2.994420] raid6: sse2x2 xor() 4031 MB/s [ 3.164423] raid6: sse2x4 gen() 8684 MB/s [ 3.334432] raid6: sse2x4 xor() 5334 MB/s [ 3.504424] raid6: avx2x1 gen() 9444 MB/s [ 3.674431] raid6: avx2x2 gen() 14663 MB/s [ 3.844431] raid6: avx2x4 gen() 19235 MB/s [ 3.845155] raid6: using algorithm avx2x4 gen() 19235 MB/s [ 3.845950] raid6: using avx2x2 recovery algorithm [ 3.847379] ACPI: Added _OSI(Module Device) [ 3.848029] ACPI: Added _OSI(Processor Device) [ 3.848671] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.849349] ACPI: Added _OSI(Processor Aggregator Device) [ 3.876474] ACPI: Executed 2 blocks of module-level executable AML code [ 4.809889] ACPI: Interpreter enabled [ 4.810892] ACPI: (supports S0 S3 S4 S5) [ 4.811531] ACPI: Using IOAPIC for interrupt routing [ 4.812786] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug