x86/PAT: Configuration [0-7]: WB WT UC- UC WC WP UC UC Initializing cgroup subsys cpuset Initializing cgroup subsys cpu Initializing cgroup subsys cpuacct Linux version 4.4.0-x86_64-linode63 (maker@build) (gcc version 4.7.2 (Debian 4.7.2-5) ) #2 SMP Tue Jan 19 12:43:53 EST 2016 Command line: root=/dev/xvda xencons=tty console=tty1 console=hvc0 nosep nodevfs ramdisk_size=32768 ip_conntrack.hashsize=8192 nf_conntrack.hashsize=8192 ro devtmpfs.mount=1 x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. x86/fpu: Using 'eager' FPU context switches. ACPI in unprivileged domain disabled Released 0 page(s) e820: BIOS-provided physical RAM map: Xen: [mem 0x0000000000000000-0x000000000009ffff] usable Xen: [mem 0x00000000000a0000-0x00000000000fffff] reserved Xen: [mem 0x0000000000100000-0x000000003fffffff] usable NX (Execute Disable) protection: active DMI not present or invalid. Hypervisor detected: Xen e820: update [mem 0x00000000-0x00000fff] usable ==> reserved e820: remove [mem 0x000a0000-0x000fffff] usable e820: last_pfn = 0x40000 max_arch_pfn = 0x400000000 MTRR: Disabled Scanning 1 areas for low memory corruption Base memory trampoline at [ffff88000009a000] 9a000 size 24576 BRK [0x02363000, 0x02363fff] PGTABLE BRK [0x02364000, 0x02364fff] PGTABLE BRK [0x02365000, 0x02365fff] PGTABLE BRK [0x02366000, 0x02366fff] PGTABLE BRK [0x02367000, 0x02367fff] PGTABLE BRK [0x02368000, 0x02368fff] PGTABLE NUMA turned off Faking a node at [mem 0x0000000000000000-0x000000003fffffff] NODE_DATA(0) allocated [mem 0x3fe16000-0x3fe19fff] Zone ranges: DMA [mem 0x0000000000001000-0x0000000000ffffff] DMA32 [mem 0x0000000001000000-0x000000003fffffff] Normal empty Movable zone start for each node Early memory node ranges node 0: [mem 0x0000000000001000-0x000000000009ffff] node 0: [mem 0x0000000000100000-0x000000003fffffff] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] On node 0 totalpages: 262047 DMA zone: 64 pages used for memmap DMA zone: 21 pages reserved DMA zone: 3999 pages, LIFO batch:0 DMA32 zone: 4032 pages used for memmap DMA32 zone: 258048 pages, LIFO batch:31 p2m virtual area at ffffc90000000000, size is 200000 Remapped 0 page(s) smpboot: Allowing 1 CPUs, 0 hotplug CPUs e820: [mem 0x40000000-0xffffffff] available for PCI devices Booting paravirtualized kernel on Xen Xen version: 4.4.4-pre (preserve-AD) clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6370452778343963 ns setup_percpu: NR_CPUS:48 nr_cpumask_bits:48 nr_cpu_ids:1 nr_node_ids:1 PERCPU: Embedded 33 pages/cpu @ffff88003f800000 s94424 r8192 d32552 u2097152 pcpu-alloc: s94424 r8192 d32552 u2097152 alloc=1*2097152 pcpu-alloc: [0] 0 xen: PV spinlocks enabled PV qspinlock hash table entries: 256 (order: 0, 4096 bytes) Built 1 zonelists in Node order, mobility grouping on. Total pages: 257930 Policy zone: DMA32 Kernel command line: root=/dev/xvda xencons=tty console=tty1 console=hvc0 nosep nodevfs ramdisk_size=32768 ip_conntrack.hashsize=8192 nf_conntrack.hashsize=8192 ro devtmpfs.mount=1 PID hash table entries: 4096 (order: 3, 32768 bytes) Memory: 1007444K/1048188K available (9845K kernel code, 1239K rwdata, 4104K rodata, 1520K init, 660K bss, 40744K reserved, 0K cma-reserved) SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 Hierarchical RCU implementation. Build-time adjustment of leaf fanout to 64. RCU restricting CPUs from NR_CPUS=48 to nr_cpu_ids=1. RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=1 Using NULL legacy PIC NR_IRQS:4352 nr_irqs:32 0 xen:events: Using FIFO-based ABI Console: colour dummy device 80x25 console [tty0] enabled console [hvc0] enabled clocksource: xen: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns Xen: using vcpuop timer interface installing Xen timer for CPU 0 tsc: Detected 2800.064 MHz processor Calibrating delay loop (skipped), value calculated using timer frequency.. 5602.46 BogoMIPS (lpj=9333546) pid_max: default: 32768 minimum: 301 Security Framework initialized Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) Mount-cache hash table entries: 2048 (order: 2, 16384 bytes) Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes) Initializing cgroup subsys io Initializing cgroup subsys memory Initializing cgroup subsys devices Initializing cgroup subsys freezer Initializing cgroup subsys net_cls Initializing cgroup subsys perf_event Initializing cgroup subsys net_prio Initializing cgroup subsys pids Initializing cgroup subsys debug CPU: Physical Processor ID: 0 CPU: Processor Core ID: 9 Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 Last level dTLB entries: 4KB 512, 2MB 0, 4MB 0, 1GB 4 Freeing SMP alternatives memory: 44K (ffffffff822b3000 - ffffffff822be000) ftrace: allocating 40334 entries in 158 pages cpu 0 spinlock event irq 1 Could not initialize VPMU for cpu 0, error -38 Performance Events: unsupported p6 CPU model 62 no PMU driver, software events only. x86: Booted up 1 node, 1 CPUs devtmpfs: initialized clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6370867519511994 ns xor: automatically using best checksumming function: avx : 26894.400 MB/sec NET: Registered protocol family 16 xen:grant_table: Grant tables using version 1 layout Grant table initialized PCI: setting up Xen PCI frontend stub PCI: pci_cache_line_size set to 64 bytes raid6: sse2x1 gen() 7188 MB/s raid6: sse2x1 xor() 5418 MB/s raid6: sse2x2 gen() 9228 MB/s raid6: sse2x2 xor() 6775 MB/s raid6: sse2x4 gen() 10365 MB/s raid6: sse2x4 xor() 7591 MB/s raid6: using algorithm sse2x4 gen() 10365 MB/s raid6: .... xor() 7591 MB/s, rmw enabled raid6: using ssse3x2 recovery algorithm ACPI: Interpreter disabled. xen:balloon: Initialising balloon driver xen_balloon: Initialising balloon driver vgaarb: loaded SCSI subsystem initialized libata version 3.00 loaded. pps_core: LinuxPPS API ver. 1 registered pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti PTP clock support registered dmi: Firmware registration failed. PCI: System does not support PCI PCI: System does not support PCI clocksource: Switched to clocksource xen FS-Cache: Loaded CacheFiles: Loaded pnp: PnP ACPI: disabled NET: Registered protocol family 2 TCP established hash table entries: 8192 (order: 4, 65536 bytes) TCP bind hash table entries: 8192 (order: 5, 131072 bytes) TCP: Hash tables configured (established 8192 bind 8192) UDP hash table entries: 512 (order: 2, 16384 bytes) UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) NET: Registered protocol family 1 RPC: Registered named UNIX socket transport module. RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. PCI: CLS 0 bytes, default 64 RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer hw unit of domain pp0-core 2^-16 Joules hw unit of domain package 2^-16 Joules hw unit of domain dram 2^-16 Joules Scanning for low memory corruption every 60 seconds AVX2 or AES-NI instructions are not detected. AVX2 instructions are not detected. futex hash table entries: 256 (order: 2, 16384 bytes) audit: initializing netlink subsys (disabled) audit: type=2000 audit(1455659923.895:1): initialized Initialise system trusted keyring VFS: Disk quotas dquot_6.6.0 VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) DLM installed squashfs: version 4.0 (2009/01/31) Phillip Lougher FS-Cache: Netfs 'nfs' registered for caching NFS: Registering the id_resolver key type Key type id_resolver registered Key type id_legacy registered nfs4filelayout_init: NFSv4 File Layout Driver Registering... Installing knfsd (copyright (C) 1996 okir@monad.swb.de). FS-Cache: Netfs 'cifs' registered for caching Key type cifs.spnego registered Key type cifs.idmap registered romfs: ROMFS MTD (C) 2007 Red Hat, Inc. fuse init (API version 7.23) JFS: nTxBlock = 7871, nTxLock = 62968 SGI XFS with ACLs, security attributes, realtime, no debug enabled gfs2: GFS2 installed FS-Cache: Netfs 'ceph' registered for caching ceph: loaded (mds proto 32) NET: Registered protocol family 38 Key type asymmetric registered Asymmetric key parser 'x509' registered Key type pkcs7_test registered Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251) io scheduler noop registered io scheduler deadline registered io scheduler cfq registered (default) xen:xen_evtchn: Event-channel device installed Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled brd: module loaded loop: module loaded nbd: registered device at major 43 drbd: initialized. Version: 8.4.5 (api:1/proto:86-101) drbd: built-in drbd: registered as block device major 147 rbd: loaded tun: Universal TUN/TAP device driver, 1.6 tun: (C) 1999-2004 Max Krasnyansky e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI e1000: Copyright (c) 1999-2006 Intel Corporation. e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k e1000e: Copyright(c) 1999 - 2015 Intel Corporation. PPP generic driver version 2.4.2 PPP BSD Compression module registered PPP Deflate Compression module registered PPP MPPE Compression module registered NET: Registered protocol family 24 PPTP driver version 0.8.5 xen_netfront: Initialising Xen virtual ethernet driver i8042: PNP: No PS/2 controller found. Probing ports directly. i8042: No controller found clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x285c7d559b8, max_idle_ns: 440795330212 ns md: linear personality registered for level -1 md: raid0 personality registered for level 0 md: raid1 personality registered for level 1 md: raid10 personality registered for level 10 md: raid6 personality registered for level 6 md: raid5 personality registered for level 5 md: raid4 personality registered for level 4 md: multipath personality registered for level -4 device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com device-mapper: raid: Loading target version 1.7.0 dmi-sysfs: dmi entry is absent. GACT probability NOT on Mirror/redirect action on netem: version 1.3 u32 classifier Performance counters on Actions configured Netfilter messages via NETLINK v0.30. nfnl_acct: registering with nfnetlink. nf_conntrack version 0.5.0 (8192 buckets, 65536 max) ctnetlink v0.93: registering with nfnetlink. nf_tables: (c) 2007-2009 Patrick McHardy nf_tables_compat: (c) 2012 Pablo Neira Ayuso xt_time: kernel timezone is -0000 ip_set: protocol 6 ipip: IPv4 over IPv4 tunneling driver gre: GRE over IPv4 demultiplexor driver ip_gre: GRE over IPv4 tunneling driver IPv4 over IPsec tunneling driver ip_tables: (C) 2000-2006 Netfilter Core Team ipt_CLUSTERIP: ClusterIP Version 0.8 loaded successfully Initializing XFRM netlink socket NET: Registered protocol family 10 ip6_tables: (C) 2000-2006 Netfilter Core Team sit: IPv6 over IPv4 tunneling driver ip6_gre: GRE over IPv6 tunneling driver NET: Registered protocol family 17 NET: Registered protocol family 15 bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this. Bridge firewalling registered Ebtables v2.0 registered 8021q: 802.1Q VLAN Support v1.8 sctp: Hash tables configured (established 65536 bind 65536) Key type dns_resolver registered Key type ceph registered libceph: loaded (mon/osd proto 15/24) mce: Unable to init device /dev/mcelog (rc: -5) AVX version of gcm_enc/dec engaged. AES CTR mode by8 optimization enabled registered taskstats version 1 Loading compiled-in X.509 certificates Btrfs loaded Key type encrypted registered blkfront: xvda: barrier or flush: disabled; persistent grants: enabled; indirect descriptors: enabled; blkfront: xvdb: barrier or flush: disabled; persistent grants: enabled; indirect descriptors: enabled; console [netcon0] enabled netconsole: network logging started hctosys: unable to open rtc device (rtc0) md: Waiting for all devices to be available before autodetect md: If you don't use raid, use raid=noautodetect md: Autodetecting RAID arrays. md: Scanned 0 and added 0 devices. md: autorun ... md: ... autorun DONE. EXT4-fs (xvda): couldn't mount as ext3 due to feature incompatibilities EXT4-fs (xvda): barriers disabled EXT4-fs (xvda): mounted filesystem with ordered data mode. Opts: (null) VFS: Mounted root (ext4 filesystem) readonly on device 202:0. devtmpfs: mounted Freeing unused kernel memory: 1520K (ffffffff82137000 - ffffffff822b3000) Write protecting the kernel read-only data: 16384k Freeing unused kernel memory: 384K (ffff8800019a0000 - ffff880001a00000) Freeing unused kernel memory: 2040K (ffff880001e02000 - ffff880002000000) ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at arch/x86/mm/dump_pagetables.c:225 note_page+0xf2/0x5cd() x86/mm: Found insecure W+X mapping at address ffff880000000000/0xffff880000000000 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0-x86_64-linode63 #2 0000000000000000 0000000000000009 ffffffff8158cbcc ffff88003e303dd8 ffffffff810decaf 0000000000000201 ffffffff8104d38a ffffffff81998a0c 0000000000000000 ffff88003e303ec8 ffff88000200b000 ffff88000200c000 Call Trace: [] ? dump_stack+0x40/0x50 [] ? warn_slowpath_common+0x9d/0xb5 [] ? note_page+0xf2/0x5cd [] ? _raw_spin_unlock_irqrestore+0x16/0x17 [] ? warn_slowpath_fmt+0x4a/0x4f [] ? note_page+0xf2/0x5cd [] ? __raw_callee_save_xen_pmd_val+0x11/0x1e [] ? ptdump_walk_pgd_level_core+0x2ad/0x3a4 [] ? rest_init+0x7a/0x7a [] ? kernel_init+0x1a/0xdc [] ? ret_from_fork+0x3f/0x70 [] ? rest_init+0x7a/0x7a ---[ end trace 5394196e76982267 ]--- x86/mm: Checked W+X mappings: FAILED, 5094 W+X pages found. udevd[1644]: starting version 175 Adding 262140k swap on /dev/xvdb. Priority:-1 extents:1 across:262140k SSFS EXT4-fs (xvda): re-mounted. Opts: (null) EXT4-fs (xvda): re-mounted. Opts: errors=remount-ro random: dd urandom read with 36 bits of entropy available random: nonblocking pool is initialized nf_conntrack: automatic helper assignment is deprecated and it will be removed soon. Use the iptables CT target to attach helpers instead.