From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ducie-dc1.codethink.co.uk ([185.25.241.215]:44186 "EHLO ducie-dc1.codethink.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752656AbaIOPN5 (ORCPT ); Mon, 15 Sep 2014 11:13:57 -0400 Message-ID: <5417022A.5000101@codethink.co.uk> Date: Mon, 15 Sep 2014 16:13:46 +0100 From: Sam Thursfield MIME-Version: 1.0 To: linux-btrfs@vger.kernel.org CC: baserock-dev@baserock.org Subject: Unable to mount multiple subvolumes of a single disk Content-Type: multipart/mixed; boundary="------------090402070901030605080509" Sender: linux-btrfs-owner@vger.kernel.org List-ID: This is a multi-part message in MIME format. --------------090402070901030605080509 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi! I'm having an issue with the 3.17rc5 kernel which prevents having multiple subvolumes of the same disk mounted. I'm not sure exactly the cause. I thought it might be because in my system the root file system is itself a subvolume of the disk I'm trying to mount. But if I create a second disk image with two subvolumes, the same thing occurs -- I can only mount one of them at a time. I've attached the output of a few commands, please let me know if you want more info (I'm not subscribed to the list, please keep me in To:). We've bisected and found that the exact commit that changed the behaviour is this one: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b96de000bc8bc9688b3a2abea4332bd57648a49f I'm afraid I'm not familiar with the Btrfs code base and so I don't understand the exact meaning of the comments in that commit. Thanks Sam -- Sam Thursfield, Codethink Ltd. Office telephone: +44 161 236 5575 --------------090402070901030605080509 Content-Type: text/plain; charset=UTF-8; name="btrfs-debug-log.txt" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="btrfs-debug-log.txt" $ btrfs subvolume list / ID 257 gen 15 top level 5 path systems/factory/orig ID 261 gen 15 top level 5 path state/var ID 263 gen 11 top level 5 path state/opt ID 264 gen 12 top level 5 path state/srv ID 265 gen 13 top level 5 path state/root ID 266 gen 14 top level 5 path state/home ID 267 gen 23 top level 5 path systems/factory/run $ cat /etc/fstab # Morph default system layout UUID=9a1b9724-d64c-4709-9ce0-b7ad98054385 / btrfs defaults,rw,noatime 0 1 UUID=9a1b9724-d64c-4709-9ce0-b7ad98054385 /var btrfs subvol=/state/var,defaults,rw,noatime 0 2 UUID=9a1b9724-d64c-4709-9ce0-b7ad98054385 /opt btrfs subvol=/state/opt,defaults,rw,noatime 0 2 UUID=9a1b9724-d64c-4709-9ce0-b7ad98054385 /srv btrfs subvol=/state/srv,defaults,rw,noatime 0 2 UUID=9a1b9724-d64c-4709-9ce0-b7ad98054385 /root btrfs subvol=/state/root,defaults,rw,noatime 0 2 UUID=9a1b9724-d64c-4709-9ce0-b7ad98054385 /home btrfs subvol=/state/home,defaults,rw,noatime 0 2 $ mount /dev/sda /home -t btrfs -o subvol=/state/home,defaults,rw,noatime mount: /dev/vda is already mounted or /home busy /dev/vda is already mounted on / $ uname -a Linux baserock 3.17.0-rc3+ #1 SMP Fri Sep 12 10:59:05 UTC 2014 x86_64 GNU/Linux $ btrfs --version Btrfs v0.20-rc1-334-g304f215 $ btrfs fi show Label: 'baserock' uuid: 9a1b9724-d64c-4709-9ce0-b7ad98054385 Total devices 1 FS bytes used 1.45GB devid 1 size 4.00GB used 2.06GB path /dev/vda Btrfs v0.20-rc1-334-g304f215 $ btrfs fi df / Data: total=1.63GB, used=1.38GB System, DUP: total=8.00MB, used=4.00KB System: total=4.00MB, used=0.00 Metadata, DUP: total=204.75MB, used=68.46MB Metadata: total=8.00MB, used=0.00 : total=24.00MB, used=0.00 $ mount /dev/vda on / type btrfs (rw,noatime,space_cache) devtmpfs on /dev type devtmpfs (rw,relatime,size=1023164k,nr_inodes=255791,mode=755) proc on /proc type proc (rw,nosuid,nodev,noexec,relatime) sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime) tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev) devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000) tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755) tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,mode=755) cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd) cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset) cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct) cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices) cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer) systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=24,pgrp=1,timeout=300,minproto=5,maxproto=5,direct) mqueue on /dev/mqueue type mqueue (rw,relatime) debugfs on /sys/kernel/debug type debugfs (rw,relatime) hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime) tmpfs on /tmp type tmpfs (rw,relatime) $ dmesg [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 3.17.0-rc3+ (root@sam-baserock-dev) (gcc version 4.7.3 (GCC) ) #1 SMP Fri Sep 12 10:59:05 UTC 2014 [ 0.000000] Command line: rw init=/sbin/init rootfstype=btrfs rootflags=subvol=systems/default/run root=/dev/vda console=ttyS0 console=tty0 BOOT_IMAGE=/systems/default/kernel [ 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 0x0000000000100000-0x000000007fffdfff] usable [ 0.000000] BIOS-e820: [mem 0x000000007fffe000-0x000000007fffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] DMI: OpenStack Foundation OpenStack Nova, BIOS Bochs 01/01/2011 [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable [ 0.000000] e820: last_pfn = 0x7fffe max_arch_pfn = 0x400000000 [ 0.000000] MTRR default type: write-back [ 0.000000] MTRR fixed ranges enabled: [ 0.000000] 00000-9FFFF write-back [ 0.000000] A0000-BFFFF uncachable [ 0.000000] C0000-FFFFF write-protect [ 0.000000] MTRR variable ranges enabled: [ 0.000000] 0 base 0080000000 mask FF80000000 uncachable [ 0.000000] 1 disabled [ 0.000000] 2 disabled [ 0.000000] 3 disabled [ 0.000000] 4 disabled [ 0.000000] 5 disabled [ 0.000000] 6 disabled [ 0.000000] 7 disabled [ 0.000000] x86 PAT enabled: cpu 0, old 0x70406, new 0x7010600070106 [ 0.000000] found SMP MP-table at [mem 0x000f0b50-0x000f0b5f] mapped at [ffff8800000f0b50] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Base memory trampoline at [ffff880000099000] 99000 size 24576 [ 0.000000] Using GB pages for direct mapping [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] [ 0.000000] [mem 0x00000000-0x000fffff] page 4k [ 0.000000] BRK [0x020f2000, 0x020f2fff] PGTABLE [ 0.000000] BRK [0x020f3000, 0x020f3fff] PGTABLE [ 0.000000] BRK [0x020f4000, 0x020f4fff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x7fc00000-0x7fdfffff] [ 0.000000] [mem 0x7fc00000-0x7fdfffff] page 2M [ 0.000000] BRK [0x020f5000, 0x020f5fff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x7c000000-0x7fbfffff] [ 0.000000] [mem 0x7c000000-0x7fbfffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x00100000-0x7bffffff] [ 0.000000] [mem 0x00100000-0x001fffff] page 4k [ 0.000000] [mem 0x00200000-0x7bffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x7fe00000-0x7fffdfff] [ 0.000000] [mem 0x7fe00000-0x7fffdfff] page 4k [ 0.000000] BRK [0x020f6000, 0x020f6fff] PGTABLE [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F09B0 000014 (v00 BOCHS ) [ 0.000000] ACPI: RSDT 0x000000007FFFFB89 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACP 0x000000007FFFF1C0 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.000000] ACPI: DSDT 0x000000007FFFE040 001180 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACS 0x000000007FFFE000 000040 [ 0.000000] ACPI: SSDT 0x000000007FFFF234 0008DD (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: APIC 0x000000007FFFFB11 000078 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.000000] ACPI: RSDT 0x000000007FFFFB89 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] No NUMA configuration found [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000007fffdfff] [ 0.000000] Initmem setup node 0 [mem 0x00000000-0x7fffdfff] [ 0.000000] NODE_DATA [mem 0x7fffa000-0x7fffdfff] [ 0.000000] [ffffea0000000000-ffffea0001ffffff] PMD -> [ffff88007d600000-ffff88007f5fffff] on node 0 [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x00001000-0x00ffffff] [ 0.000000] DMA32 [mem 0x01000000-0xffffffff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x00001000-0x0009efff] [ 0.000000] node 0: [mem 0x00100000-0x7fffdfff] [ 0.000000] On node 0 totalpages: 524188 [ 0.000000] DMA zone: 64 pages used for memmap [ 0.000000] DMA zone: 21 pages reserved [ 0.000000] DMA zone: 3998 pages, LIFO batch:0 [ 0.000000] DMA32 zone: 8128 pages used for memmap [ 0.000000] DMA32 zone: 520190 pages, LIFO batch:31 [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 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] ACPI: IRQ0 used by override. [ 0.000000] ACPI: IRQ5 used by override. [ 0.000000] ACPI: IRQ9 used by override. [ 0.000000] ACPI: IRQ10 used by override. [ 0.000000] ACPI: IRQ11 used by override. [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs [ 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] e820: [mem 0x80000000-0xfeffbfff] available for PCI devices [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:1 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 27 pages/cpu @ffff88007fc00000 s79488 r8192 d22912 u2097152 [ 0.000000] pcpu-alloc: s79488 r8192 d22912 u2097152 alloc=1*2097152 [ 0.000000] pcpu-alloc: [0] 0 [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 515975 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: rw init=/sbin/init rootfstype=btrfs rootflags=subvol=systems/default/run root=/dev/vda console=ttyS0 console=tty0 BOOT_IMAGE=/systems/default/kernel [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] xsave: enabled xstate_bv 0x7, cntxt size 0x340 using standard form [ 0.000000] Calgary: detecting Calgary via BIOS EBDA area [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing! [ 0.000000] Memory: 2046292K/2096752K available (10060K kernel code, 950K rwdata, 3184K rodata, 1092K init, 924K bss, 50460K reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=1. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1 [ 0.000000] NR_IRQS:4352 nr_irqs:256 0 [ 0.000000] Console: colour VGA+ 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] console [ttyS0] enabled [ 0.000000] tsc: Fast TSC calibration using PIT [ 0.000000] tsc: Detected 2399.991 MHz processor [ 0.003003] Calibrating delay loop (skipped), value calculated using timer frequency.. 4799.98 BogoMIPS (lpj=2399991) [ 0.005004] pid_max: default: 32768 minimum: 301 [ 0.006010] ACPI: Core revision 20140724 [ 0.008521] ACPI: All ACPI Tables successfully acquired [ 0.010021] Security Framework initialized [ 0.011006] SELinux: Initializing. [ 0.011945] SELinux: Starting in permissive mode [ 0.012746] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.013444] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.014199] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.015008] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.016164] Initializing cgroup subsys devices [ 0.017006] Initializing cgroup subsys freezer [ 0.019382] mce: CPU supports 10 MCE banks [ 0.020051] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 0.036809] Freeing SMP alternatives memory: 36K (ffffffff82000000 - ffffffff82009000) [ 0.038157] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.049647] smpboot: CPU0: Intel Xeon E312xx (Sandy Bridge) (fam: 06, model: 2a, stepping: 01) [ 0.052020] TSC deadline timer enabled [ 0.052042] Performance Events: unsupported p6 CPU model 42 no PMU driver, software events only. [ 0.054811] x86: Booted up 1 node, 1 CPUs [ 0.055005] smpboot: Total of 1 processors activated (4799.98 BogoMIPS) [ 0.056298] devtmpfs: initialized [ 0.057369] xor: automatically using best checksumming function: [ 0.068004] avx : 20940.000 MB/sec [ 0.069104] RTC time: 14:42:06, date: 09/15/14 [ 0.070101] NET: Registered protocol family 16 [ 0.071128] cpuidle: using governor ladder [ 0.072006] cpuidle: using governor menu [ 0.073065] ACPI: bus type PCI registered [ 0.074097] PCI: Using configuration type 1 for base access [ 0.093004] raid6: sse2x1 6320 MB/s [ 0.111004] raid6: sse2x2 8097 MB/s [ 0.129008] raid6: sse2x4 10660 MB/s [ 0.130005] raid6: using algorithm sse2x4 (10660 MB/s) [ 0.131005] raid6: using ssse3x2 recovery algorithm [ 0.132042] ACPI: Added _OSI(Module Device) [ 0.133005] ACPI: Added _OSI(Processor Device) [ 0.134004] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.135005] ACPI: Added _OSI(Processor Aggregator Device) [ 0.137355] ACPI: Interpreter enabled [ 0.138010] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] (20140724/hwxface-580) [ 0.139933] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20140724/hwxface-580) [ 0.141901] ACPI: (supports S0 S3 S4 S5) [ 0.142005] ACPI: Using IOAPIC for interrupt routing [ 0.143017] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.145652] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 0.146009] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 0.147009] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 0.148072] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 0.149024] PCI host bridge to bus 0000:00 [ 0.150006] pci_bus 0000:00: root bus resource [bus 00-ff] [ 0.151005] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7] [ 0.152005] pci_bus 0000:00: root bus resource [io 0x0d00-0xadff] [ 0.153005] pci_bus 0000:00: root bus resource [io 0xae0f-0xaeff] [ 0.154006] pci_bus 0000:00: root bus resource [io 0xaf20-0xafdf] [ 0.155005] pci_bus 0000:00: root bus resource [io 0xafe4-0xffff] [ 0.156005] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff] [ 0.157005] pci_bus 0000:00: root bus resource [mem 0x80000000-0xfebfffff] [ 0.158044] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 0.158416] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100 [ 0.158942] pci 0000:00:01.1: [8086:7010] type 00 class 0x010180 [ 0.161639] pci 0000:00:01.1: reg 0x20: [io 0xc0a0-0xc0af] [ 0.162672] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7] [ 0.163006] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6] [ 0.164005] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177] [ 0.165005] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376] [ 0.166143] pci 0000:00:01.2: [8086:7020] type 00 class 0x0c0300 [ 0.169006] pci 0000:00:01.2: reg 0x20: [io 0xc040-0xc05f] [ 0.170154] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 0.170560] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 0.171016] pci 0000:00:01.3: quirk: [io 0xb100-0xb10f] claimed by PIIX4 SMB [ 0.172206] pci 0000:00:02.0: [1013:00b8] type 00 class 0x030000 [ 0.173665] pci 0000:00:02.0: reg 0x10: [mem 0xfc000000-0xfdffffff pref] [ 0.174706] pci 0000:00:02.0: reg 0x14: [mem 0xfebd0000-0xfebd0fff] [ 0.179677] pci 0000:00:02.0: reg 0x30: [mem 0xfebc0000-0xfebcffff pref] [ 0.179862] pci 0000:00:03.0: [1af4:1000] type 00 class 0x020000 [ 0.180609] pci 0000:00:03.0: reg 0x10: [io 0xc060-0xc07f] [ 0.181595] pci 0000:00:03.0: reg 0x14: [mem 0xfebd1000-0xfebd1fff] [ 0.186608] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 0.186941] pci 0000:00:04.0: [1af4:1001] type 00 class 0x010000 [ 0.187629] pci 0000:00:04.0: reg 0x10: [io 0xc000-0xc03f] [ 0.188617] pci 0000:00:04.0: reg 0x14: [mem 0xfebd2000-0xfebd2fff] [ 0.193912] pci 0000:00:05.0: [1af4:1002] type 00 class 0x00ff00 [ 0.194335] pci 0000:00:05.0: reg 0x10: [io 0xc080-0xc09f] [ 0.198228] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 0.200102] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 0.202099] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 0.204095] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 0.206057] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 0.208000] ACPI: Enabled 16 GPEs in block 00 to 0F [ 0.208085] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none [ 0.209005] vgaarb: loaded [ 0.209967] vgaarb: bridge control possible 0000:00:02.0 [ 0.210059] SCSI subsystem initialized [ 0.211036] libata version 3.00 loaded. [ 0.211067] ACPI: bus type USB registered [ 0.212023] usbcore: registered new interface driver usbfs [ 0.213017] usbcore: registered new interface driver hub [ 0.214026] usbcore: registered new device driver usb [ 0.215039] pps_core: LinuxPPS API ver. 1 registered [ 0.216005] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 0.217012] PTP clock support registered [ 0.218072] Advanced Linux Sound Architecture Driver Initialized. [ 0.219007] PCI: Using ACPI for IRQ routing [ 0.220004] PCI: pci_cache_line_size set to 64 bytes [ 0.220153] e820: reserve RAM buffer [mem 0x0009fc00-0x0009ffff] [ 0.220155] e820: reserve RAM buffer [mem 0x7fffe000-0x7fffffff] [ 0.220334] cfg80211: Calling CRDA to update world regulatory domain [ 0.221025] NetLabel: Initializing [ 0.222005] NetLabel: domain hash size = 128 [ 0.223004] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.224019] NetLabel: unlabeled traffic allowed by default [ 0.225087] Switched to clocksource refined-jiffies [ 0.230315] pnp: PnP ACPI init [ 0.231060] pnp 00:00: Plug and Play ACPI device, IDs PNP0b00 (active) [ 0.231099] pnp 00:01: Plug and Play ACPI device, IDs PNP0303 (active) [ 0.231131] pnp 00:02: Plug and Play ACPI device, IDs PNP0f13 (active) [ 0.231166] pnp 00:03: [dma 2] [ 0.231174] pnp 00:03: Plug and Play ACPI device, IDs PNP0700 (active) [ 0.231247] pnp 00:04: Plug and Play ACPI device, IDs PNP0501 (active) [ 0.231299] pnp 00:05: Plug and Play ACPI device, IDs PNP0501 (active) [ 0.231448] pnp: PnP ACPI: found 6 devices [ 0.237425] Switched to clocksource acpi_pm [ 0.238256] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7] [ 0.238258] pci_bus 0000:00: resource 5 [io 0x0d00-0xadff] [ 0.238259] pci_bus 0000:00: resource 6 [io 0xae0f-0xaeff] [ 0.238260] pci_bus 0000:00: resource 7 [io 0xaf20-0xafdf] [ 0.238262] pci_bus 0000:00: resource 8 [io 0xafe4-0xffff] [ 0.238263] pci_bus 0000:00: resource 9 [mem 0x000a0000-0x000bffff] [ 0.238264] pci_bus 0000:00: resource 10 [mem 0x80000000-0xfebfffff] [ 0.238283] NET: Registered protocol family 2 [ 0.239668] TCP established hash table entries: 16384 (order: 5, 131072 bytes) [ 0.242563] TCP bind hash table entries: 16384 (order: 6, 262144 bytes) [ 0.244172] TCP: Hash tables configured (established 16384 bind 16384) [ 0.245765] TCP: reno registered [ 0.246841] UDP hash table entries: 1024 (order: 3, 32768 bytes) [ 0.248421] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes) [ 0.250056] NET: Registered protocol family 1 [ 0.251371] RPC: Registered named UNIX socket transport module. [ 0.252875] RPC: Registered udp transport module. [ 0.254163] RPC: Registered tcp transport module. [ 0.255446] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.257084] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 0.258587] pci 0000:00:01.0: PIIX3: Enabling Passive Release [ 0.260068] pci 0000:00:01.0: Activating ISA DMA hang workarounds [ 0.261823] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11 [ 0.263713] pci 0000:00:02.0: Boot video device [ 0.263750] PCI: CLS 0 bytes, default 64 [ 0.272131] microcode: CPU0 sig=0x206a1, pf=0x1, revision=0x1 [ 0.273633] microcode: Microcode Update Driver: v2.00 , Peter Oruba [ 0.276097] Scanning for low memory corruption every 60 seconds [ 0.277823] futex hash table entries: 256 (order: 2, 16384 bytes) [ 0.279358] audit: initializing netlink subsys (disabled) [ 0.280788] audit: type=2000 audit(1410792126.280:1): initialized [ 0.282537] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 0.285212] VFS: Disk quotas dquot_6.5.2 [ 0.286429] Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.288469] NFS: Registering the id_resolver key type [ 0.289834] Key type id_resolver registered [ 0.291047] Key type id_legacy registered [ 0.292260] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 0.293884] 9p: Installing v9fs 9p2000 file system support [ 0.295352] ceph: loaded (mds proto 32) [ 0.296550] msgmni has been set to 3996 [ 0.297797] SELinux: Registering netfilter hooks [ 0.297936] cryptomgr_test (26) used greatest stack depth: 15080 bytes left [ 0.299830] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251) [ 0.301988] io scheduler noop registered [ 0.303179] io scheduler deadline registered [ 0.304466] io scheduler cfq registered (default) [ 0.305822] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.307326] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 0.309547] ACPI: Power Button [PWRF] [ 0.311146] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 10 [ 0.314435] ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 10 [ 0.316768] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.347911] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 0.379689] 00:05: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 0.382129] Non-volatile memory driver v1.3 [ 0.383383] Linux agpgart interface v0.103 [ 0.384676] [drm] Initialized drm 1.1.0 20060810 [ 0.386381] loop: module loaded [ 0.387605] virtio-pci 0000:00:04.0: irq 24 for MSI/MSI-X [ 0.387623] virtio-pci 0000:00:04.0: irq 25 for MSI/MSI-X [ 0.391516] vda: unknown partition table [ 0.393672] ata_piix 0000:00:01.1: version 2.13 [ 0.394696] scsi host0: ata_piix [ 0.395897] scsi host1: ata_piix [ 0.397052] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc0a0 irq 14 [ 0.398686] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc0a8 irq 15 [ 0.400665] tun: Universal TUN/TAP device driver, 1.6 [ 0.402033] tun: (C) 1999-2004 Max Krasnyansky [ 0.404095] virtio-pci 0000:00:03.0: irq 26 for MSI/MSI-X [ 0.404114] virtio-pci 0000:00:03.0: irq 27 for MSI/MSI-X [ 0.404131] virtio-pci 0000:00:03.0: irq 28 for MSI/MSI-X [ 0.464262] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI [ 0.465796] e100: Copyright(c) 1999-2006 Intel Corporation [ 0.467218] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI [ 0.468897] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 0.470403] sky2: driver version 1.30 [ 0.471669] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.473263] ehci-pci: EHCI PCI platform driver [ 0.474530] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.476074] ohci-pci: OHCI PCI platform driver [ 0.477346] uhci_hcd: USB Universal Host Controller Interface driver [ 0.479958] uhci_hcd 0000:00:01.2: UHCI Host Controller [ 0.481387] uhci_hcd 0000:00:01.2: new USB bus registered, assigned bus number 1 [ 0.483630] uhci_hcd 0000:00:01.2: irq 11, io base 0x0000c040 [ 0.485169] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001 [ 0.486849] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 0.489068] usb usb1: Product: UHCI Host Controller [ 0.490471] usb usb1: Manufacturer: Linux 3.17.0-rc3+ uhci_hcd [ 0.491968] usb usb1: SerialNumber: 0000:00:01.2 [ 0.493422] hub 1-0:1.0: USB hub found [ 0.494645] hub 1-0:1.0: 2 ports detected [ 0.495977] usbcore: registered new interface driver usblp [ 0.497524] usbcore: registered new interface driver usb-storage [ 0.499084] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12 [ 0.502218] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 0.503628] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 0.505082] mousedev: PS/2 mouse device common for all mice [ 0.506764] rtc_cmos 00:00: RTC can wake from S4 [ 0.508394] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0 [ 0.510172] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram [ 0.511858] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30) initialised: dm-devel@redhat.com [ 0.514341] hidraw: raw HID events driver (C) Jiri Kosina [ 0.515953] usbcore: registered new interface driver usbhid [ 0.517428] usbhid: USB HID core driver [ 0.518862] Netfilter messages via NETLINK v0.30. [ 0.520276] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [ 0.521968] ctnetlink v0.93: registering with nfnetlink. [ 0.523557] ip_tables: (C) 2000-2006 Netfilter Core Team [ 0.525061] TCP: cubic registered [ 0.526187] Initializing XFRM netlink socket [ 0.527667] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1 [ 0.531970] NET: Registered protocol family 10 [ 0.533535] ip6_tables: (C) 2000-2006 Netfilter Core Team [ 0.535094] sit: IPv6 over IPv4 tunneling driver [ 0.536545] NET: Registered protocol family 17 [ 0.537969] Bridge firewalling registered [ 0.539237] 9pnet: Installing 9P2000 support [ 0.540570] Key type dns_resolver registered [ 0.541867] kworker/u2:2 (50) used greatest stack depth: 14792 bytes left [ 0.543592] Key type ceph registered [ 0.544811] libceph: loaded (mon/osd proto 15/24) [ 0.546342] registered taskstats version 1 [ 0.547893] Btrfs loaded [ 0.549241] Magic number: 14:314:738 [ 0.550528] console [netcon0] enabled [ 0.551672] netconsole: network logging started [ 0.553288] PM: Hibernation image not present or could not be loaded. [ 0.553291] ALSA device list: [ 0.554370] No soundcards found. [ 0.797103] usb 1-1: new full-speed USB device number 2 using uhci_hcd [ 0.948422] usb 1-1: New USB device found, idVendor=0627, idProduct=0001 [ 0.950151] usb 1-1: New USB device strings: Mfr=1, Product=3, SerialNumber=5 [ 0.951899] usb 1-1: Product: QEMU USB Tablet [ 0.953153] usb 1-1: Manufacturer: QEMU [ 0.954473] usb 1-1: SerialNumber: 42 [ 0.964704] input: QEMU QEMU USB Tablet as /devices/pci0000:00/0000:00:01.2/usb1/1-1/1-1:1.0/0003:0627:0001.0001/input/input4 [ 0.967624] hid-generic 0003:0627:0001.0001: input,hidraw0: USB HID v0.01 Pointer [QEMU QEMU USB Tablet] on usb-0000:00:01.2-1/input0 [ 1.132193] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3 [ 1.134822] md: Waiting for all devices to be available before autodetect [ 1.136633] md: If you don't use raid, use raid=noautodetect [ 1.138709] md: Autodetecting RAID arrays. [ 1.140003] md: Scanned 0 and added 0 devices. [ 1.141361] md: autorun ... [ 1.142422] md: ... autorun DONE. [ 1.143753] BTRFS: device label baserock devid 1 transid 18 /dev/root [ 1.145894] BTRFS info (device vda): disk space caching is enabled [ 1.151703] VFS: Mounted root (btrfs filesystem) on device 0:15. [ 1.153433] devtmpfs: mounted [ 1.155303] Freeing unused kernel memory: 1092K (ffffffff81eef000 - ffffffff82000000) [ 1.157683] Write protecting the kernel read-only data: 14336k [ 1.159653] Freeing unused kernel memory: 168K (ffff8800019d6000 - ffff880001a00000) [ 1.163975] Freeing unused kernel memory: 912K (ffff880001d1c000 - ffff880001e00000) [ 1.193889] systemd[1]: systemd 204 running in system mode. (-PAM -LIBWRAP -AUDIT -SELINUX +IMA +SYSVINIT -LIBCRYPTSETUP -GCRYPT -ACL +XZ) [ 1.197176] systemd[1]: Detected virtualization 'kvm'. [ 1.201515] systemd[1]: Set hostname to . [ 1.203098] systemd[1]: Initializing machine ID from KVM UUID. [ 1.205665] random: systemd urandom read with 6 bits of entropy available [ 1.212588] systemd-efi-boo (76) used greatest stack depth: 12136 bytes left [ 1.215185] systemd-rc-loca (77) used greatest stack depth: 11880 bytes left [ 1.218571] systemd-fstab-g (78) used greatest stack depth: 11528 bytes left [ 1.254748] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory. See system logs and 'systemctl status display-manager.service' for details. [ 1.268583] tsc: Refined TSC clocksource calibration: 2399.998 MHz [ 1.273508] systemd[1]: Starting Forward Password Requests to Wall Directory Watch. [ 1.276712] systemd[1]: Started Forward Password Requests to Wall Directory Watch. [ 1.279190] systemd[1]: Starting Remote File Systems. [ 1.282906] systemd[1]: Reached target Remote File Systems. [ 1.284474] systemd[1]: Starting Delayed Shutdown Socket. [ 1.287455] systemd[1]: Listening on Delayed Shutdown Socket. [ 1.289077] systemd[1]: Starting /dev/initctl Compatibility Named Pipe. [ 1.292311] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe. [ 1.294142] systemd[1]: Starting udev Kernel Socket. [ 1.297051] systemd[1]: Listening on udev Kernel Socket. [ 1.298678] systemd[1]: Starting udev Control Socket. [ 1.301605] systemd[1]: Listening on udev Control Socket. [ 1.303123] systemd[1]: Starting Dispatch Password Requests to Console Directory Watch. [ 1.305618] systemd[1]: Started Dispatch Password Requests to Console Directory Watch. [ 1.307978] systemd[1]: Starting Paths. [ 1.310585] systemd[1]: Reached target Paths. [ 1.311995] systemd[1]: Starting Arbitrary Executable File Formats File System Automount Point. [ 1.316074] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point. [ 1.318739] systemd[1]: Starting Journal Socket. [ 1.321586] systemd[1]: Listening on Journal Socket. [ 1.323154] systemd[1]: Starting Create static device nodes in /dev... [ 1.326416] systemd[1]: Mounting POSIX Message Queue File System... [ 1.332631] systemd[1]: Starting Setup Virtual Console... [ 1.341610] systemd[1]: Mounting Debug File System... [ 1.348310] systemd[1]: Started Load Kernel Modules. [ 1.350231] systemd[1]: Mounted Configuration File System. [ 1.352476] systemd[1]: Starting Apply Kernel Variables... [ 1.356229] systemd[1]: Started Set Up Additional Binary Formats. [ 1.359053] systemd[1]: Mounted FUSE Control File System. [ 1.360639] systemd[1]: Starting udev Coldplug all Devices... [ 1.364334] systemd[1]: Mounting Huge Pages File System... [ 1.372513] systemd[1]: Starting Journal Service... [ 1.384757] systemd[1]: Started Journal Service. [ 1.386293] systemd[1]: Starting Swap. [ 1.387659] systemd-journald[95]: Failed to resolve 'systemd-journal' group: No such process [ 1.393138] systemd[1]: Reached target Swap. [ 1.396090] systemd[1]: Started File System Check on Root Device. [ 1.397701] systemd[1]: Starting Remount Root and Kernel File Systems... [ 1.405478] systemd[1]: Mounting Temporary Directory... [ 1.411351] systemd[1]: Expecting device dev-disk-by\x2duuid-9a1b9724\x2dd64c\x2d4709\x2d9ce0\x2db7ad98054385.device... [ 1.423639] systemd[1]: Started Create static device nodes in /dev. [ 1.430053] systemd[1]: Mounted POSIX Message Queue File System. [ 1.436159] systemd[1]: Started Setup Virtual Console. [ 1.444160] systemd[1]: Mounted Debug File System. [ 1.449693] systemd[1]: Started Apply Kernel Variables. [ 1.457095] systemd[1]: Mounted Huge Pages File System. [ 1.461343] systemd[1]: Mounted Temporary Directory. [ 1.464946] systemd[1]: Started udev Coldplug all Devices. [ 1.466623] systemd[1]: Starting udev Kernel Device Manager... [ 2.270180] Switched to clocksource tsc [ 9.744200] systemd-udevd[102]: starting version 204 [ 9.748662] systemd[1]: Started udev Kernel Device Manager. [ 16.004394] BTRFS info (device vda): disk space caching is enabled [ 16.007678] mount (97) used greatest stack depth: 11304 bytes left [ 16.082584] systemd[1]: Unit opt.mount entered failed state. [ 16.113177] systemd[1]: Triggering OnFailure= dependencies of local-fs.target. [ 16.115485] systemd[1]: Unit home.mount entered failed state. [ 16.120092] systemd[1]: root.mount mount process exited, code=exited status=32 [ 16.128351] systemd[1]: Unit opt.mount entered failed state. [ 16.128393] systemd[1]: var.mount mount process exited, code=exited status=32 [ 16.128485] systemd[1]: Unit var.mount entered failed state. [ 21.159134] systemd[1]: Triggering OnFailure= dependencies of local-fs.target. [ 21.161644] systemd[1]: Unit root.mount entered failed state. [ 21.165424] systemd[1]: opt.mount mount process exited, code=exited status=32 [ 21.170345] systemd[1]: Unit srv.mount entered failed state. [ 32.912297] random: nonblocking pool is initialized [ 42.752208] systemd[1]: Triggering OnFailure= dependencies of local-fs.target. [ 42.754685] systemd[1]: Unit root.mount entered failed state. [ 42.759086] systemd[1]: opt.mount mount process exited, code=exited status=32 [ 42.763185] systemd[1]: home.mount mount process exited, code=exited status=32 [ 47.779066] systemd[1]: root.mount mount process exited, code=exited status=32 [ 47.782139] systemd[1]: Triggering OnFailure= dependencies of local-fs.target. [ 47.788300] systemd[1]: Unit root.mount entered failed state. --------------090402070901030605080509--