Re: [PATCH 0/2] tracing/tlb/x85: Fix splat of calling RCU trace code on offline CPU

Paul E. McKenney
2015-02-06T21:39:03Z

On Fri, Feb 06, 2015 at 10:07:56PM +0100, Sedat Dilek wrote:
> On Fri, Feb 6, 2015 at 9:06 PM, Steven Rostedt <rostedt@goodmis.org> wrote:
> > Paul,
> >
> > I found a much better fix than adding the rcu_nocheck(). Simply have the
> > rcu check inside the condition check as well. This way the rcu splat
> > will only happen if the condition is set too. The condition doesn't need
> > the tracepoint enabled.
> >
> > Now I'm thinking that I should push the first patch through my tree as it
> > only touches tracing. The second patch you can freely take.
> >
> > Neither patch really depends on the other, but both patches are required
> > to make the splat go away. If Sedat could test these patches together,
> > and give his tested-by tag, that would be great. I'll run my patch through
> > my full series of tests and then push to linux next. You could take the second
> > patch and push that through your tree (linux-next). When both arrive, the
> > bug will be fixed. The two do not need to come in together.
> >
> > Thoughts?
> >
> > -- Steve
> >
> >
> > Steven Rostedt (Red Hat) (2):
> > tracing: Add condition check to RCU lockdep checks
> > x86/tbl/trace: Do not trace on CPU that is offline
> >
> > ----
> > include/linux/tracepoint.h | 2 +-
> > include/trace/events/tlb.h | 4 +++-
> > 2 files changed, 4 insertions(+), 2 deletions(-)
> >
>
> Your patchset fixes the issue for me (look at the attached files for
> more detailed information).
>
> I tested the "To Be Loved" (TBL VS. TLB flushes) edition against
> Linux-next (next-20150204) where I had originally seen and reported
> the call-trace.
>
> Before I forget... The Fixes-tag misses pointing to Dave Hansen's...
>
> commit d17d8f9dedb9dd76fd540a5c497101529d9eb25a
> "x86/mm: Add tracepoints for TLB flushes"
>
> My POV is that both patches somehow belong together.
> If you decide to push them through two different trees, please add a
> note/reference to each other.

I am fine with Steven pushing these, and have dropped his earlier
version from my tree.

Thanx, Paul

> Thanks to all involved people nailing this down.
>
> - Sedat -

> [ 0.000000] Initializing cgroup subsys cpuset
> [ 0.000000] Initializing cgroup subsys cpu
> [ 0.000000] Initializing cgroup subsys cpuacct
> [ 0.000000] Linux version 3.19.0-rc7-next-20150204.12-iniza-small (sedat.dilek@gmail.com@fambox) (gcc version 4.9.2 (Ubuntu 4.9.2-0ubuntu1~12.04) ) #1 SMP Fri Feb 6 21:47:54 CET 2015
> [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.19.0-rc7-next-20150204.12-iniza-small root=UUID=001AADA61AAD9964 loop=/ubuntu/disks/root.disk ro
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> [ 0.000000] AMD AuthenticAMD
> [ 0.000000] Centaur CentaurHauls
> [ 0.000000] Disabled fast string operations
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> [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000001fffffff] usable
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> [ 0.000000] SMBIOS 2.6 present.
> [ 0.000000] DMI: SAMSUNG ELECTRONICS CO., LTD. 530U3BI/530U4BI/530U4BH/530U3BI/530U4BI/530U4BH, BIOS 13XK 03/28/2013
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> [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
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> [ 0.000000] ACPI: FACP 0x00000000DAFEF000 00010C (v05 SECCSD LH43STAR 00000002 PTL 00000002)
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> [ 0.000000] ACPI: ASF! 0x00000000DAFF1000 0000A5 (v32 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: HPET 0x00000000DAFEE000 000038 (v01 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: APIC 0x00000000DAFED000 000098 (v03 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: MCFG 0x00000000DAFEC000 00003C (v01 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: SSDT 0x00000000DAFEB000 000804 (v01 PmRef Cpu0Ist 00003000 INTL 20061109)
> [ 0.000000] ACPI: SSDT 0x00000000DAFEA000 000996 (v01 PmRef CpuPm 00003000 INTL 20061109)
> [ 0.000000] ACPI: UEFI 0x00000000DAFE9000 00003E (v01 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: UEFI 0x00000000DAFE8000 000042 (v01 PTL COMBUF 00000001 PTL 00000001)
> [ 0.000000] ACPI: UEFI 0x00000000DAFE7000 00026A (v01 SECCSD LH43STAR 00000002 PTL 00000002)
> [ 0.000000] ACPI: SSDT 0x00000000DAFE6000 0000D0 (v01 Iffs IffsAsl 00003000 INTL 20061109)
> [ 0.000000] ACPI: Local APIC address 0xfee00000
> [ 0.000000] No NUMA configuration found
> [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000011fdfffff]
> [ 0.000000] NODE_DATA(0) allocated [mem 0x11fdf8000-0x11fdfcfff]
> [ 0.000000] [ffffea0000000000-ffffea00047fffff] PMD -> [ffff88011b400000-ffff88011f3fffff] on node 0
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> [ 0.000000] DMA32 zone: 13859 pages used for memmap
> [ 0.000000] DMA32 zone: 886944 pages, LIFO batch:31
> [ 0.000000] Normal zone: 2040 pages used for memmap
> [ 0.000000] Normal zone: 130560 pages, LIFO batch:31
> [ 0.000000] Reserving Intel graphics stolen memory at 0xdba00000-0xdf9fffff
> [ 0.000000] ACPI: PM-Timer IO Port: 0x408
> [ 0.000000] ACPI: Local APIC address 0xfee00000
> [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x02] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x00] disabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x00] disabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x00] disabled)
> [ 0.000000] ACPI: LAPIC (acpi_id[0x08] lapic_id[0x00] disabled)
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
> [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
> [ 0.000000] ACPI: IOAPIC (id[0x0e] address[0xfec00000] gsi_base[0])
> [ 0.000000] IOAPIC[0]: apic_id 14, version 32, 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 9 global_irq 9 high level)
> [ 0.000000] ACPI: IRQ0 used by override.
> [ 0.000000] ACPI: IRQ9 used by override.
> [ 0.000000] Using ACPI (MADT) for SMP configuration information
> [ 0.000000] ACPI: HPET id: 0x8086a301 base: 0xfed00000
> [ 0.000000] smpboot: Allowing 8 CPUs, 4 hotplug CPUs
> [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x0009d000-0x0009dfff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x0009e000-0x0009ffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000dffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x000e0000-0x000fffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x20000000-0x201fffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0x40000000-0x401fffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xd9c9f000-0xdae7efff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xdae7f000-0xdaf9efff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xdaf9f000-0xdaffefff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xdb000000-0xdf9fffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xdfa00000-0xf7ffffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xf8000000-0xfbffffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfc000000-0xfebfffff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfec00000-0xfec00fff]
> [ 0.000000] PM: Registered nosave memory: [mem 0xfec01000-0xfed07fff]
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> [ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:8 nr_node_ids:1
> [ 0.000000] PERCPU: Embedded 33 pages/cpu @ffff88011fa00000 s94984 r8192 d31992 u262144
> [ 0.000000] pcpu-alloc: s94984 r8192 d31992 u262144 alloc=1*2097152
> [ 0.000000] pcpu-alloc: [0] 0 1 2 3 4 5 6 7
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> [ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.19.0-rc7-next-20150204.12-iniza-small root=UUID=001AADA61AAD9964 loop=/ubuntu/disks/root.disk ro
> [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
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> [ 0.000000] AGP: No AGP bridge found
> [ 0.000000] Calgary: detecting Calgary via BIOS EBDA area
> [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing!
> [ 0.000000] Memory: 3918912K/4086000K available (8143K kernel code, 1272K rwdata, 3464K rodata, 1408K init, 14360K bss, 167088K reserved, 0K cma-reserved)
> [ 0.000000] Running RCU self tests
> [ 0.000000] Hierarchical RCU implementation.
> [ 0.000000] RCU lockdep checking is enabled.
> [ 0.000000] RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=8.
> [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8
> [ 0.000000] NR_IRQS:16640 nr_irqs:488 16
> [ 0.000000] Console: colour dummy device 80x25
> [ 0.000000] console [tty0] enabled
> [ 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
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> [ 0.000089] pid_max: default: 32768 minimum: 301
> [ 0.000113] ACPI: Core revision 20141107
> [ 0.018556] ACPI: All ACPI Tables successfully acquired
> [ 0.020240] Security Framework initialized
> [ 0.020257] AppArmor: AppArmor initialized
> [ 0.020262] Yama: becoming mindful.
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> [ 0.022502] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
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> [ 0.024352] CPU: Processor Core ID: 0
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> [ 0.024367] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)
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> [ 0.024392] CPU0: Thermal monitoring enabled (TM1)
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> [ 0.024420] Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32, 1GB 0
> [ 0.024635] Freeing SMP alternatives memory: 24K (ffffffff81ea0000 - ffffffff81ea6000)
> [ 0.026318] ftrace: allocating 28430 entries in 112 pages
> [ 0.042354] x2apic: IRQ remapping doesn't support X2APIC mode
> [ 0.042959] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
> [ 0.082627] TSC deadline timer enabled
> [ 0.082633] smpboot: CPU0: Intel(R) Core(TM) i5-2467M CPU @ 1.60GHz (fam: 06, model: 2a, stepping: 07)
> [ 0.082686] Performance Events: PEBS fmt1+, 16-deep LBR, SandyBridge events, full-width counters, Intel PMU driver.
> [ 0.082729] ... version: 3
> [ 0.082734] ... bit width: 48
> [ 0.082739] ... generic registers: 4
> [ 0.082745] ... value mask: 0000ffffffffffff
> [ 0.082750] ... max period: 0000ffffffffffff
> [ 0.082755] ... fixed-purpose events: 3
> [ 0.082760] ... event mask: 000000070000000f
> [ 0.084699] x86: Booting SMP configuration:
> [ 0.084707] .... node #0, CPUs: #1
> [ 0.095662] Disabled fast string operations
> [ 0.098202] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.
> [ 0.098730] #2
> [ 0.109678] Disabled fast string operations
> [ 0.112309] #3<6>[ 0.123263] Disabled fast string operations
> [ 0.125437] x86: Booted up 1 node, 4 CPUs
> [ 0.125451] smpboot: Total of 4 processors activated (12771.12 BogoMIPS)
> [ 0.130362] devtmpfs: initialized
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> [ 0.135223] evm: security.SMACK64
> [ 0.135228] evm: security.capability
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> [ 0.137337] NET: Registered protocol family 16
> [ 0.149574] cpuidle: using governor ladder
> [ 0.159863] cpuidle: using governor menu
> [ 0.160023] ACPI: bus type PCI registered
> [ 0.160333] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
> [ 0.160345] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
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> [ 0.177300] ACPI: Added _OSI(Module Device)
> [ 0.177309] ACPI: Added _OSI(Processor Device)
> [ 0.177315] ACPI: Added _OSI(3.0 _SCP Extensions)
> [ 0.177321] ACPI: Added _OSI(Processor Aggregator Device)
> [ 0.189484] ACPI: Executed 1 blocks of module-level executable AML code
> [ 0.198093] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
> [ 0.199908] ACPI: Dynamic OEM Table Load:
> [ 0.199936] ACPI: SSDT 0xFFFF88011AB65000 000688 (v01 PmRef Cpu0Cst 00003001 INTL 20061109)
> [ 0.202102] ACPI: Dynamic OEM Table Load:
> [ 0.202129] ACPI: SSDT 0xFFFF88011A4CA000 000303 (v01 PmRef ApIst 00003000 INTL 20061109)
> [ 0.204098] ACPI: Dynamic OEM Table Load:
> [ 0.204122] ACPI: SSDT 0xFFFF88011A4C5A00 000119 (v01 PmRef ApCst 00003000 INTL 20061109)
> [ 0.209096] ACPI: Interpreter enabled
> [ 0.209121] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20141107/hwxface-580)
> [ 0.209179] ACPI: (supports S0 S1 S3 S4 S5)
> [ 0.209186] ACPI: Using IOAPIC for interrupt routing
> [ 0.209273] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
> [ 0.230313] ACPI: Power Resource [FN00] (off)
> [ 0.230755] ACPI: Power Resource [FN01] (off)
> [ 0.231116] ACPI: Power Resource [FN02] (off)
> [ 0.231441] ACPI: Power Resource [FN03] (off)
> [ 0.231768] ACPI: Power Resource [FN04] (off)
> [ 0.234124] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-3e])
> [ 0.234138] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
> [ 0.234741] \_SB_.PCI0:_OSC invalid UUID
> [ 0.234743] _OSC request data:1 1f 0
> [ 0.234749] acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM
> [ 0.236303] PCI host bridge to bus 0000:00
> [ 0.236312] pci_bus 0000:00: root bus resource [bus 00-3e]
> [ 0.236319] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7]
> [ 0.236326] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff]
> [ 0.236333] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff]
> [ 0.236340] pci_bus 0000:00: root bus resource [mem 0xdfa00000-0xfeafffff]
> [ 0.236347] pci_bus 0000:00: root bus resource [mem 0xfed40000-0xfed44fff]
> [ 0.236406] pci 0000:00:00.0: [8086:0104] type 00 class 0x060000
> [ 0.236794] pci 0000:00:02.0: [8086:0116] type 00 class 0x030000
> [ 0.236815] pci 0000:00:02.0: reg 0x10: [mem 0xf0000000-0xf03fffff 64bit]
> [ 0.236826] pci 0000:00:02.0: reg 0x18: [mem 0xe0000000-0xefffffff 64bit pref]
> [ 0.236834] pci 0000:00:02.0: reg 0x20: [io 0x3000-0x303f]
> [ 0.237289] pci 0000:00:16.0: [8086:1c3a] type 00 class 0x078000
> [ 0.237335] pci 0000:00:16.0: reg 0x10: [mem 0xf0705000-0xf070500f 64bit]
> [ 0.237489] pci 0000:00:16.0: PME# supported from D0 D3hot D3cold
> [ 0.237858] pci 0000:00:1a.0: [8086:1c2d] type 00 class 0x0c0320
> [ 0.237896] pci 0000:00:1a.0: reg 0x10: [mem 0xf070a000-0xf070a3ff]
> [ 0.238077] pci 0000:00:1a.0: PME# supported from D0 D3hot D3cold
> [ 0.238385] pci 0000:00:1b.0: [8086:1c20] type 00 class 0x040300
> [ 0.238422] pci 0000:00:1b.0: reg 0x10: [mem 0xf0700000-0xf0703fff 64bit]
> [ 0.238600] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
> [ 0.238794] pci 0000:00:1b.0: System wakeup disabled by ACPI
> [ 0.238955] pci 0000:00:1c.0: [8086:1c10] type 01 class 0x060400
> [ 0.239134] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
> [ 0.239294] pci 0000:00:1c.0: System wakeup disabled by ACPI
> [ 0.239467] pci 0000:00:1c.3: [8086:1c16] type 01 class 0x060400
> [ 0.239645] pci 0000:00:1c.3: PME# supported from D0 D3hot D3cold
> [ 0.239805] pci 0000:00:1c.3: System wakeup disabled by ACPI
> [ 0.239964] pci 0000:00:1c.4: [8086:1c18] type 01 class 0x060400
> [ 0.240143] pci 0000:00:1c.4: PME# supported from D0 D3hot D3cold
> [ 0.240461] pci 0000:00:1d.0: [8086:1c26] type 00 class 0x0c0320
> [ 0.240500] pci 0000:00:1d.0: reg 0x10: [mem 0xf0709000-0xf07093ff]
> [ 0.240680] pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold
> [ 0.240981] pci 0000:00:1f.0: [8086:1c49] type 00 class 0x060100
> [ 0.241443] pci 0000:00:1f.2: [8086:1c03] type 00 class 0x010601
> [ 0.241486] pci 0000:00:1f.2: reg 0x10: [io 0x3088-0x308f]
> [ 0.241503] pci 0000:00:1f.2: reg 0x14: [io 0x3094-0x3097]
> [ 0.241520] pci 0000:00:1f.2: reg 0x18: [io 0x3080-0x3087]
> [ 0.241536] pci 0000:00:1f.2: reg 0x1c: [io 0x3090-0x3093]
> [ 0.241553] pci 0000:00:1f.2: reg 0x20: [io 0x3060-0x307f]
> [ 0.241569] pci 0000:00:1f.2: reg 0x24: [mem 0xf0708000-0xf07087ff]
> [ 0.241697] pci 0000:00:1f.2: PME# supported from D3hot
> [ 0.241994] pci 0000:00:1f.3: [8086:1c22] type 00 class 0x0c0500
> [ 0.242027] pci 0000:00:1f.3: reg 0x10: [mem 0xf0704000-0xf07040ff 64bit]
> [ 0.242073] pci 0000:00:1f.3: reg 0x20: [io 0xefa0-0xefbf]
> [ 0.242802] pci 0000:01:00.0: [8086:0091] type 00 class 0x028000
> [ 0.243208] pci 0000:01:00.0: reg 0x10: [mem 0xf0600000-0xf0601fff 64bit]
> [ 0.245001] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold
> [ 0.245334] pci 0000:01:00.0: System wakeup disabled by ACPI
> [ 0.253895] pci 0000:00:1c.0: PCI bridge to [bus 01]
> [ 0.253912] pci 0000:00:1c.0: bridge window [mem 0xf0600000-0xf06fffff]
> [ 0.254166] pci 0000:02:00.0: [10ec:8168] type 00 class 0x020000
> [ 0.254258] pci 0000:02:00.0: reg 0x10: [io 0x2000-0x20ff]
> [ 0.254395] pci 0000:02:00.0: reg 0x18: [mem 0xf0404000-0xf0404fff 64bit pref]
> [ 0.254479] pci 0000:02:00.0: reg 0x20: [mem 0xf0400000-0xf0403fff 64bit pref]
> [ 0.254957] pci 0000:02:00.0: supports D1 D2
> [ 0.254959] pci 0000:02:00.0: PME# supported from D0 D1 D2 D3hot D3cold
> [ 0.255131] pci 0000:02:00.0: System wakeup disabled by ACPI
> [ 0.261787] pci 0000:00:1c.3: PCI bridge to [bus 02]
> [ 0.261799] pci 0000:00:1c.3: bridge window [io 0x2000-0x2fff]
> [ 0.261814] pci 0000:00:1c.3: bridge window [mem 0xf0400000-0xf04fffff 64bit pref]
> [ 0.262029] pci 0000:03:00.0: [1b21:1042] type 00 class 0x0c0330
> [ 0.262078] pci 0000:03:00.0: reg 0x10: [mem 0xf0500000-0xf0507fff 64bit]
> [ 0.262353] pci 0000:03:00.0: PME# supported from D3hot D3cold
> [ 0.262631] pci 0000:00:1c.4: PCI bridge to [bus 03]
> [ 0.262646] pci 0000:00:1c.4: bridge window [mem 0xf0500000-0xf05fffff]
> [ 0.264713] ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 10 *11 12 14 15)
> [ 0.264894] ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled.
> [ 0.265074] ACPI: PCI Interrupt Link [LNKC] (IRQs 1 3 4 5 6 *10 11 12 14 15)
> [ 0.265261] ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 5 6 *10 11 12 14 15)
> [ 0.265448] ACPI: PCI Interrupt Link [LNKE] (IRQs 1 3 4 5 6 10 11 12 14 15) *9
> [ 0.265625] ACPI: PCI Interrupt Link [LNKF] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled.
> [ 0.265836] ACPI: PCI Interrupt Link [LNKG] (IRQs 1 3 4 5 6 10 *11 12 14 15)
> [ 0.266011] ACPI: PCI Interrupt Link [LNKH] (IRQs 1 3 4 5 6 10 11 12 14 15) *9
> [ 0.267408] ACPI: Enabled 4 GPEs in block 00 to 3F
> [ 0.267555] ACPI : EC: GPE = 0x17, I/O: command/status = 0x66, data = 0x62
> [ 0.267887] ACPI : EC: 0 stale EC events cleared
> [ 0.268656] vgaarb: setting as boot device: PCI:0000:00:02.0
> [ 0.268664] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
> [ 0.268679] vgaarb: loaded
> [ 0.268684] vgaarb: bridge control possible 0000:00:02.0
> [ 0.269455] SCSI subsystem initialized
> [ 0.269625] libata version 3.00 loaded.
> [ 0.269739] ACPI: bus type USB registered
> [ 0.269814] usbcore: registered new interface driver usbfs
> [ 0.269852] usbcore: registered new interface driver hub
> [ 0.269941] usbcore: registered new device driver usb
> [ 0.270404] PCI: Using ACPI for IRQ routing
> [ 0.274119] PCI: pci_cache_line_size set to 64 bytes
> [ 0.274247] e820: reserve RAM buffer [mem 0x0009d800-0x0009ffff]
> [ 0.274256] e820: reserve RAM buffer [mem 0xd9c9f000-0xdbffffff]
> [ 0.274259] e820: reserve RAM buffer [mem 0xdb000000-0xdbffffff]
> [ 0.274261] e820: reserve RAM buffer [mem 0x11fe00000-0x11fffffff]
> [ 0.275040] NetLabel: Initializing
> [ 0.275046] NetLabel: domain hash size = 128
> [ 0.275051] NetLabel: protocols = UNLABELED CIPSOv4
> [ 0.275112] NetLabel: unlabeled traffic allowed by default
> [ 0.275302] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
> [ 0.275316] hpet0: 8 comparators, 64-bit 14.318180 MHz counter
> [ 0.277408] Switched to clocksource hpet
> [ 0.319452] AppArmor: AppArmor Filesystem Enabled
> [ 0.319718] pnp: PnP ACPI init
> [ 0.320383] system 00:00: [io 0x0680-0x069f] has been reserved
> [ 0.320394] system 00:00: [io 0x1000-0x100f] has been reserved
> [ 0.320402] system 00:00: [io 0x5000-0x5003] has been reserved
> [ 0.320410] system 00:00: [io 0xffff] has been reserved
> [ 0.320418] system 00:00: [io 0x0400-0x0453] could not be reserved
> [ 0.320426] system 00:00: [io 0x0458-0x047f] has been reserved
> [ 0.320435] system 00:00: [io 0x0500-0x057f] has been reserved
> [ 0.320442] system 00:00: [io 0x0a00-0x0a0f] has been reserved
> [ 0.320450] system 00:00: [io 0x164e-0x164f] has been reserved
> [ 0.320461] system 00:00: [io 0x5000-0x500f] could not be reserved
> [ 0.320501] system 00:00: Plug and Play ACPI device, IDs PNP0c02 (active)
> [ 0.320609] pnp 00:01: Plug and Play ACPI device, IDs PNP0b00 (active)
> [ 0.320764] system 00:02: [io 0x0454-0x0457] has been reserved
> [ 0.320775] system 00:02: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active)
> [ 0.320876] pnp 00:03: Plug and Play ACPI device, IDs PNP0303 (active)
> [ 0.321008] pnp 00:04: Plug and Play ACPI device, IDs ETD0b00 SYN0002 PNP0f13 (active)
> [ 0.321471] system 00:05: [mem 0xfed1c000-0xfed1ffff] has been reserved
> [ 0.321480] system 00:05: [mem 0xfed10000-0xfed17fff] has been reserved
> [ 0.321488] system 00:05: [mem 0xfed18000-0xfed18fff] has been reserved
> [ 0.321496] system 00:05: [mem 0xfed19000-0xfed19fff] has been reserved
> [ 0.321504] system 00:05: [mem 0xf8000000-0xfbffffff] has been reserved
> [ 0.321512] system 00:05: [mem 0xfed20000-0xfed3ffff] has been reserved
> [ 0.321520] system 00:05: [mem 0xfed90000-0xfed93fff] has been reserved
> [ 0.321528] system 00:05: [mem 0xfed45000-0xfed8ffff] has been reserved
> [ 0.321536] system 00:05: [mem 0xff000000-0xffffffff] could not be reserved
> [ 0.321545] system 00:05: [mem 0xfee00000-0xfeefffff] could not be reserved
> [ 0.321556] system 00:05: Plug and Play ACPI device, IDs PNP0c02 (active)
> [ 0.322474] system 00:06: Plug and Play ACPI device, IDs PNP0c01 (active)
> [ 0.322539] pnp: PnP ACPI: found 7 devices
> [ 0.333511] pci 0000:00:1c.0: PCI bridge to [bus 01]
> [ 0.333527] pci 0000:00:1c.0: bridge window [mem 0xf0600000-0xf06fffff]
> [ 0.333547] pci 0000:00:1c.3: PCI bridge to [bus 02]
> [ 0.333555] pci 0000:00:1c.3: bridge window [io 0x2000-0x2fff]
> [ 0.333572] pci 0000:00:1c.3: bridge window [mem 0xf0400000-0xf04fffff 64bit pref]
> [ 0.333589] pci 0000:00:1c.4: PCI bridge to [bus 03]
> [ 0.333601] pci 0000:00:1c.4: bridge window [mem 0xf0500000-0xf05fffff]
> [ 0.333621] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7]
> [ 0.333624] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff]
> [ 0.333626] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff]
> [ 0.333628] pci_bus 0000:00: resource 7 [mem 0xdfa00000-0xfeafffff]
> [ 0.333630] pci_bus 0000:00: resource 8 [mem 0xfed40000-0xfed44fff]
> [ 0.333632] pci_bus 0000:01: resource 1 [mem 0xf0600000-0xf06fffff]
> [ 0.333634] pci_bus 0000:02: resource 0 [io 0x2000-0x2fff]
> [ 0.333636] pci_bus 0000:02: resource 2 [mem 0xf0400000-0xf04fffff 64bit pref]
> [ 0.333638] pci_bus 0000:03: resource 1 [mem 0xf0500000-0xf05fffff]
> [ 0.333773] NET: Registered protocol family 2
> [ 0.334368] TCP established hash table entries: 32768 (order: 6, 262144 bytes)
> [ 0.334870] TCP bind hash table entries: 32768 (order: 9, 2097152 bytes)
> [ 0.337241] TCP: Hash tables configured (established 32768 bind 32768)
> [ 0.337334] TCP: reno registered
> [ 0.337439] UDP hash table entries: 2048 (order: 6, 327680 bytes)
> [ 0.337814] UDP-Lite hash table entries: 2048 (order: 6, 327680 bytes)
> [ 0.338387] NET: Registered protocol family 1
> [ 0.338422] pci 0000:00:02.0: Video device with shadowed ROM
> [ 0.340080] PCI: CLS 64 bytes, default 64
> [ 0.340367] Trying to unpack rootfs image as initramfs...
> [ 0.426748] Freeing initrd memory: 3568K (ffff8800378f8000 - ffff880037c74000)
> [ 0.426771] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
> [ 0.426779] software IO TLB [mem 0xd5c9f000-0xd9c9f000] (64MB) mapped at [ffff8800d5c9f000-ffff8800d9c9efff]
> [ 0.427595] RAPL PMU detected, hw unit 2^-16 Joules, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer
> [ 0.427834] microcode: CPU0 sig=0x206a7, pf=0x10, revision=0x28
> [ 0.427858] microcode: CPU1 sig=0x206a7, pf=0x10, revision=0x28
> [ 0.427888] microcode: CPU2 sig=0x206a7, pf=0x10, revision=0x28
> [ 0.427911] microcode: CPU3 sig=0x206a7, pf=0x10, revision=0x28
> [ 0.428095] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
> [ 0.428176] Scanning for low memory corruption every 60 seconds
> [ 0.429567] futex hash table entries: 2048 (order: 6, 262144 bytes)
> [ 0.429751] Initialise system trusted keyring
> [ 0.429886] audit: initializing netlink subsys (disabled)
> [ 0.430000] audit: type=2000 audit(1423259462.424:1): initialized
> [ 0.431016] HugeTLB registered 2 MB page size, pre-allocated 0 pages
> [ 0.431625] VFS: Disk quotas dquot_6.5.2
> [ 0.431673] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> [ 0.432544] fuse init (API version 7.23)
> [ 0.433943] Key type asymmetric registered
> [ 0.433969] Asymmetric key parser 'x509' registered
> [ 0.434031] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
> [ 0.434202] io scheduler noop registered
> [ 0.434212] io scheduler deadline registered (default)
> [ 0.434248] io scheduler cfq registered
> [ 0.434258] start plist test
> [ 0.436667] end plist test
> [ 0.437875] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
> [ 0.438029] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
> [ 0.438266] intel_idle: MWAIT substates: 0x21120
> [ 0.438268] intel_idle: v0.4 model 0x2A
> [ 0.438270] intel_idle: lapic_timer_reliable_states 0xffffffff
> [ 0.439937] ACPI: AC Adapter [ADP1] (on-line)
> [ 0.440774] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
> [ 0.440828] ACPI: Lid Switch [LID0]
> [ 0.440981] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1
> [ 0.441034] ACPI: Power Button [PWRB]
> [ 0.441187] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
> [ 0.441200] ACPI: Power Button [PWRF]
> [ 0.444935] thermal LNXTHERM:00: registered as thermal_zone0
> [ 0.444943] ACPI: Thermal Zone [TZ00] (71 C)
> [ 0.445818] thermal LNXTHERM:01: registered as thermal_zone1
> [ 0.445825] ACPI: Thermal Zone [TZ01] (30 C)
> [ 0.445940] GHES: HEST is not enabled!
> [ 0.446293] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled
> [ 0.453433] ACPI: Battery Slot [BAT1] (battery present)
> [ 0.455885] Linux agpgart interface v0.103
> [ 0.463268] brd: module loaded
> [ 0.467803] loop: module loaded
> [ 0.471847] ahci 0000:00:1f.2: version 3.0
> [ 0.472238] ahci 0000:00:1f.2: SSS flag set, parallel bus scan disabled
> [ 0.485448] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 6 ports 6 Gbps 0x1b impl SATA mode
> [ 0.485463] ahci 0000:00:1f.2: flags: 64bit ncq sntf ilck stag pm led clo pio slum part ems sxs apst
> [ 0.511805] scsi host0: ahci
> [ 0.512414] scsi host1: ahci
> [ 0.512857] scsi host2: ahci
> [ 0.513366] scsi host3: ahci
> [ 0.513772] scsi host4: ahci
> [ 0.514232] scsi host5: ahci
> [ 0.514441] ata1: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708100 irq 25
> [ 0.514453] ata2: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708180 irq 25
> [ 0.514461] ata3: DUMMY
> [ 0.514468] ata4: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708280 irq 25
> [ 0.514478] ata5: SATA max UDMA/133 abar m2048@0xf0708000 port 0xf0708300 irq 25
> [ 0.514486] ata6: DUMMY
> [ 0.515958] libphy: Fixed MDIO Bus: probed
> [ 0.516357] tun: Universal TUN/TAP device driver, 1.6
> [ 0.516363] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
> [ 0.516601] PPP generic driver version 2.4.2
> [ 0.517001] xhci_hcd 0000:03:00.0: xHCI Host Controller
> [ 0.517200] xhci_hcd 0000:03:00.0: new USB bus registered, assigned bus number 1
> [ 0.527077] xhci_hcd 0000:03:00.0: hcc params 0x0200f180 hci version 0x96 quirks 0x00080000
> [ 0.527864] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
> [ 0.527873] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [ 0.527882] usb usb1: Product: xHCI Host Controller
> [ 0.527888] usb usb1: Manufacturer: Linux 3.19.0-rc7-next-20150204.12-iniza-small xhci-hcd
> [ 0.527897] usb usb1: SerialNumber: 0000:03:00.0
> [ 0.528887] hub 1-0:1.0: USB hub found
> [ 0.528977] hub 1-0:1.0: 2 ports detected
> [ 0.530020] xhci_hcd 0000:03:00.0: xHCI Host Controller
> [ 0.530038] xhci_hcd 0000:03:00.0: new USB bus registered, assigned bus number 2
> [ 0.530265] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
> [ 0.530272] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [ 0.530281] usb usb2: Product: xHCI Host Controller
> [ 0.530287] usb usb2: Manufacturer: Linux 3.19.0-rc7-next-20150204.12-iniza-small xhci-hcd
> [ 0.530297] usb usb2: SerialNumber: 0000:03:00.0
> [ 0.530879] hub 2-0:1.0: USB hub found
> [ 0.530944] hub 2-0:1.0: 2 ports detected
> [ 0.531502] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [ 0.531513] ehci-pci: EHCI PCI platform driver
> [ 0.531872] ehci-pci 0000:00:1a.0: EHCI Host Controller
> [ 0.531902] ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 3
> [ 0.531936] ehci-pci 0000:00:1a.0: debug port 2
> [ 0.535873] ehci-pci 0000:00:1a.0: cache line size of 64 is not supported
> [ 0.535910] ehci-pci 0000:00:1a.0: irq 16, io mem 0xf070a000
> [ 0.545455] ehci-pci 0000:00:1a.0: USB 2.0 started, EHCI 1.00
> [ 0.545695] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
> [ 0.545702] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [ 0.545710] usb usb3: Product: EHCI Host Controller
> [ 0.545716] usb usb3: Manufacturer: Linux 3.19.0-rc7-next-20150204.12-iniza-small ehci_hcd
> [ 0.545724] usb usb3: SerialNumber: 0000:00:1a.0
> [ 0.546337] hub 3-0:1.0: USB hub found
> [ 0.546369] hub 3-0:1.0: 2 ports detected
> [ 0.547170] ehci-pci 0000:00:1d.0: EHCI Host Controller
> [ 0.547192] ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 4
> [ 0.547221] ehci-pci 0000:00:1d.0: debug port 2
> [ 0.551151] ehci-pci 0000:00:1d.0: cache line size of 64 is not supported
> [ 0.551188] ehci-pci 0000:00:1d.0: irq 23, io mem 0xf0709000
> [ 0.561378] ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00
> [ 0.561565] usb usb4: New USB device found, idVendor=1d6b, idProduct=0002
> [ 0.561572] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [ 0.561581] usb usb4: Product: EHCI Host Controller
> [ 0.561586] usb usb4: Manufacturer: Linux 3.19.0-rc7-next-20150204.12-iniza-small ehci_hcd
> [ 0.561594] usb usb4: SerialNumber: 0000:00:1d.0
> [ 0.562167] hub 4-0:1.0: USB hub found
> [ 0.562198] hub 4-0:1.0: 2 ports detected
> [ 0.562631] ehci-platform: EHCI generic platform driver
> [ 0.562671] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [ 0.562696] ohci-pci: OHCI PCI platform driver
> [ 0.562735] ohci-platform: OHCI generic platform driver
> [ 0.562763] uhci_hcd: USB Universal Host Controller Interface driver
> [ 0.562892] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:EPAD] at 0x60,0x64 irq 1,12
> [ 0.570192] serio: i8042 KBD port at 0x60,0x64 irq 1
> [ 0.570251] serio: i8042 AUX port at 0x60,0x64 irq 12
> [ 0.571144] mousedev: PS/2 mouse device common for all mice
> [ 0.572747] rtc_cmos 00:01: rtc core: registered rtc_cmos as rtc0
> [ 0.572790] rtc_cmos 00:01: alarms up to one month, y3k, 242 bytes nvram, hpet irqs
> [ 0.572907] device-mapper: uevent: version 1.0.3
> [ 0.573110] device-mapper: ioctl: 4.30.0-ioctl (2014-12-22) initialised: dm-devel@redhat.com
> [ 0.573151] Intel P-state driver initializing.
> [ 0.575047] ledtrig-cpu: registered to indicate activity on CPUs
> [ 0.575585] TCP: cubic registered
> [ 0.575883] NET: Registered protocol family 10
> [ 0.578069] NET: Registered protocol family 17
> [ 0.578148] Key type dns_resolver registered
> [ 0.580378] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input3
> [ 0.582734] Loading compiled-in X.509 certificates
> [ 0.584079] Loaded X.509 cert 'Magrathea: Glacier signing key: f0f992c575902471cf410410bace80fd81340f6e'
> [ 0.584132] registered taskstats version 1
> [ 0.590656] Key type trusted registered
> [ 0.600332] Key type encrypted registered
> [ 0.600351] AppArmor: AppArmor sha1 policy hashing enabled
> [ 0.600361] evm: HMAC attrs: 0x1
> [ 0.601357] rtc_cmos 00:01: setting system clock to 2015-02-06 21:51:02 UTC (1423259462)
> [ 0.601558] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
> [ 0.601567] EDD information not available.
> [ 0.833194] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [ 0.834589] ata1.00: ATA-8: Hitachi HTS545050A7E380, GG2OA6C0, max UDMA/133
> [ 0.834614] ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
> [ 0.836069] ata1.00: configured for UDMA/133
> [ 0.837035] scsi 0:0:0:0: Direct-Access ATA Hitachi HTS54505 A6C0 PQ: 0 ANSI: 5
> [ 0.838312] sd 0:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/465 GiB)
> [ 0.838325] sd 0:0:0:0: [sda] 4096-byte physical blocks
> [ 0.838619] sd 0:0:0:0: [sda] Write Protect is off
> [ 0.838628] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
> [ 0.838733] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [ 0.838787] sd 0:0:0:0: Attached scsi generic sg0 type 0
> [ 0.854199] sda: sda1 sda2 sda3
> [ 0.855616] sd 0:0:0:0: [sda] Attached SCSI disk
> [ 0.857160] usb 3-1: new high-speed USB device number 2 using ehci-pci
> [ 0.873124] usb 4-1: new high-speed USB device number 2 using ehci-pci
> [ 0.989899] usb 3-1: New USB device found, idVendor=8087, idProduct=0024
> [ 0.989909] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> [ 0.990658] hub 3-1:1.0: USB hub found
> [ 0.990844] hub 3-1:1.0: 6 ports detected
> [ 1.005749] usb 4-1: New USB device found, idVendor=8087, idProduct=0024
> [ 1.005777] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> [ 1.006494] hub 4-1:1.0: USB hub found
> [ 1.006736] hub 4-1:1.0: 6 ports detected
> [ 1.156963] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [ 1.157572] ata2.00: ATA-8: SanDisk iSSD P4 16GB, SSD 9.14, max UDMA/133
> [ 1.157582] ata2.00: 31277232 sectors, multi 1: LBA48
> [ 1.158289] ata2.00: configured for UDMA/133
> [ 1.158633] scsi 1:0:0:0: Direct-Access ATA SanDisk iSSD P4 9.14 PQ: 0 ANSI: 5
> [ 1.159443] sd 1:0:0:0: [sdb] 31277232 512-byte logical blocks: (16.0 GB/14.9 GiB)
> [ 1.159572] sd 1:0:0:0: Attached scsi generic sg1 type 0
> [ 1.159623] sd 1:0:0:0: [sdb] Write Protect is off
> [ 1.159630] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
> [ 1.159681] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [ 1.160896] sdb: sdb1 sdb2
> [ 1.161905] sd 1:0:0:0: [sdb] Attached SCSI disk
> [ 1.265064] usb 3-1.2: new high-speed USB device number 3 using ehci-pci
> [ 1.280958] usb 4-1.4: new low-speed USB device number 3 using ehci-pci
> [ 1.360123] usb 3-1.2: New USB device found, idVendor=12d1, idProduct=1436
> [ 1.360135] usb 3-1.2: New USB device strings: Mfr=4, Product=3, SerialNumber=0
> [ 1.360143] usb 3-1.2: Product: HUAWEI Mobile
> [ 1.360148] usb 3-1.2: Manufacturer: HUAWEI Technology
> [ 1.379621] usb 4-1.4: New USB device found, idVendor=046d, idProduct=c00e
> [ 1.379657] usb 4-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> [ 1.379665] usb 4-1.4: Product: USB-PS/2 Optical Mouse
> [ 1.379670] usb 4-1.4: Manufacturer: Logitech
> [ 1.424860] tsc: Refined TSC clocksource calibration: 1596.373 MHz
> [ 1.436931] usb 3-1.4: new high-speed USB device number 4 using ehci-pci
> [ 1.452938] usb 4-1.5: new full-speed USB device number 4 using ehci-pci
> [ 1.476699] ata4: SATA link down (SStatus 0 SControl 300)
> [ 1.550057] usb 4-1.5: New USB device found, idVendor=8086, idProduct=0189
> [ 1.550068] usb 4-1.5: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> [ 1.688759] usb 3-1.4: New USB device found, idVendor=2232, idProduct=1018
> [ 1.688770] usb 3-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> [ 1.688780] usb 3-1.4: Product: WebCam SC-13HDL11431N
> [ 1.688785] usb 3-1.4: Manufacturer: 123
> [ 1.796631] ata5: SATA link down (SStatus 0 SControl 300)
> [ 1.797626] Freeing unused kernel memory: 1408K (ffffffff81d40000 - ffffffff81ea0000)
> [ 1.797636] Write protecting the kernel read-only data: 12288k
> [ 1.798094] Freeing unused kernel memory: 36K (ffff8800017f7000 - ffff880001800000)
> [ 1.798508] Freeing unused kernel memory: 632K (ffff880001b62000 - ffff880001c00000)
> [ 1.837964] udevd[131]: starting version 175
> [ 2.142777] usb-storage 3-1.2:1.0: USB Mass Storage device detected
> [ 2.153137] usb-storage 3-1.2:1.1: USB Mass Storage device detected
> [ 2.162480] usb-storage 3-1.2:1.2: USB Mass Storage device detected
> [ 2.167877] usb-storage 3-1.2:1.3: USB Mass Storage device detected
> [ 2.168715] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
> [ 2.168750] r8169 0000:02:00.0: can't disable ASPM; OS doesn't have ASPM control
> [ 2.171920] usb-storage 3-1.2:1.4: USB Mass Storage device detected
> [ 2.173964] usb-storage 3-1.2:1.5: USB Mass Storage device detected
> [ 2.175046] r8169 0000:02:00.0 eth0: RTL8168evl/8111evl at 0xffffc90000672000, e8:03:9a:36:17:a9, XID 0c900800 IRQ 31
> [ 2.175068] r8169 0000:02:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
> [ 2.176819] scsi host11: usb-storage 3-1.2:1.5
> [ 2.177711] usb-storage 3-1.2:1.6: USB Mass Storage device detected
> [ 2.180263] scsi host12: usb-storage 3-1.2:1.6
> [ 2.183197] usbcore: registered new interface driver usb-storage
> [ 2.211774] usbcore: registered new interface driver usbhid
> [ 2.211788] usbhid: USB HID core driver
> [ 2.276614] input: Logitech USB-PS/2 Optical Mouse as /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.4/4-1.4:1.0/0003:046D:C00E.0001/input/input6
> [ 2.277181] hid-generic 0003:046D:C00E.0001: input: USB HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on usb-0000:00:1d.0-1.4/input0
> [ 2.424268] Switched to clocksource tsc
> [ 3.028926] EXT4-fs (loop0): mounted filesystem with ordered data mode. Opts: (null)
> [ 3.177339] scsi 11:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
> [ 3.181418] scsi 12:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2
> [ 3.182006] sr 11:0:0:0: [sr0] scsi-1 drive
> [ 3.182019] cdrom: Uniform CD-ROM driver Revision: 3.20
> [ 3.182972] sr 11:0:0:0: Attached scsi CD-ROM sr0
> [ 3.183205] sr 11:0:0:0: Attached scsi generic sg2 type 5
> [ 3.184099] sd 12:0:0:0: Attached scsi generic sg3 type 0
> [ 3.187712] sd 12:0:0:0: [sdc] Attached SCSI removable disk
> [ 3.458986] random: nonblocking pool is initialized
> [ 5.024605] init: ureadahead main process (460) terminated with status 5
> [ 9.455370] Adding 262140k swap on /host/ubuntu/disks/swap.disk. Priority:-1 extents:1 across:262140k FS
> [ 9.642469] EXT4-fs (loop0): re-mounted. Opts: errors=remount-ro
> [ 9.820862] udevd[747]: starting version 175
> [ 11.060846] lp: driver loaded but no devices found
> [ 13.160840] wmi: Mapper loaded
> [ 13.326884] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042f conflicts with OpRegion 0x0000000000000400-0x000000000000047f (\PMIO) (20141107/utaddress-258)
> [ 13.326897] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
> [ 13.326906] ACPI Warning: SystemIO range 0x0000000000000540-0x000000000000054f conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20141107/utaddress-258)
> [ 13.326914] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
> [ 13.326918] ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053f conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20141107/utaddress-258)
> [ 13.326925] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
> [ 13.326929] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052f conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20141107/utaddress-258)
> [ 13.326935] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
> [ 13.326938] lpc_ich: Resource conflict(s) found affecting gpio_ich
> [ 13.402542] samsung_laptop: detected SABI interface: SwSmi@
> [ 13.402548] samsung_laptop: Backlight controlled by ACPI video driver
> [ 14.724891] [drm] Initialized drm 1.1.0 20060810
> [ 15.008742] Bluetooth: Core ver 2.20
> [ 15.008797] NET: Registered protocol family 31
> [ 15.008800] Bluetooth: HCI device and connection manager initialized
> [ 15.008887] Bluetooth: HCI socket layer initialized
> [ 15.008896] Bluetooth: L2CAP socket layer initialized
> [ 15.008946] Bluetooth: SCO socket layer initialized
> [ 15.359655] usbcore: registered new interface driver btusb
> [ 15.442198] psmouse serio1: elantech: assuming hardware version 3 (with firmware version 0x450f00)
> [ 15.457199] psmouse serio1: elantech: Synaptics capabilities query result 0x08, 0x17, 0x0c.
> [ 15.537049] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input7
> [ 15.570704] usbcore: registered new interface driver usbserial
> [ 15.628831] audit: type=1400 audit(1423255877.535:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=1038 comm="apparmor_parser"
> [ 15.628842] audit: type=1400 audit(1423255877.535:3): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1038 comm="apparmor_parser"
> [ 15.628849] audit: type=1400 audit(1423255877.535:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=1038 comm="apparmor_parser"
> [ 15.629491] audit: type=1400 audit(1423255877.535:5): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1038 comm="apparmor_parser"
> [ 15.629499] audit: type=1400 audit(1423255877.535:6): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1038 comm="apparmor_parser"
> [ 15.629875] audit: type=1400 audit(1423255877.535:7): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1038 comm="apparmor_parser"
> [ 15.631533] audit: type=1400 audit(1423255877.535:8): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1089 comm="apparmor_parser"
> [ 15.631550] audit: type=1400 audit(1423255877.535:9): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1089 comm="apparmor_parser"
> [ 15.631561] audit: type=1400 audit(1423255877.535:10): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1089 comm="apparmor_parser"
> [ 15.632259] audit: type=1400 audit(1423255877.535:11): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1089 comm="apparmor_parser"
> [ 15.714679] cfg80211: Calling CRDA to update world regulatory domain
> [ 16.655139] usbcore: registered new interface driver option
> [ 16.656989] usbserial: USB Serial support registered for GSM modem (1-port)
> [ 16.657087] option 3-1.2:1.0: GSM modem (1-port) converter detected
> [ 16.657945] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB0
> [ 16.658156] option 3-1.2:1.3: GSM modem (1-port) converter detected
> [ 16.658584] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB1
> [ 16.658646] option 3-1.2:1.4: GSM modem (1-port) converter detected
> [ 16.658948] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB2
> [ 16.908413] cfg80211: World regulatory domain updated:
> [ 16.908418] cfg80211: DFS Master region: unset
> [ 16.908420] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
> [ 16.908423] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
> [ 16.908426] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
> [ 16.908428] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
> [ 16.908430] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
> [ 16.908431] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
> [ 17.014151] Intel(R) Wireless WiFi driver for Linux
> [ 17.014157] Copyright(c) 2003- 2014 Intel Corporation
> [ 17.014473] iwlwifi 0000:01:00.0: can't disable ASPM; OS doesn't have ASPM control
> [ 17.342869] init: failsafe main process (1136) killed by TERM signal
> [ 17.650236] iwlwifi 0000:01:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm
> [ 17.978053] ppdev: user-space parallel port driver
> [ 18.077794] Linux video capture interface: v2.00
> [ 19.482642] cdc_ether 3-1.2:1.1 wwan0: register 'cdc_ether' at usb-0000:00:1a.0-1.2, Mobile Broadband Network Device, 02:50:f3:00:00:00
> [ 19.482740] usbcore: registered new interface driver cdc_ether
> [ 19.606363] uvcvideo: Found UVC 1.00 device WebCam SC-13HDL11431N (2232:1018)
> [ 19.626151] input: WebCam SC-13HDL11431N as /devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1.4/3-1.4:1.0/input/input8
> [ 19.626558] usbcore: registered new interface driver uvcvideo
> [ 19.626563] USB Video Class driver (1.1.1)
> [ 19.761436] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
> [ 19.761440] Bluetooth: BNEP filters: protocol multicast
> [ 19.761449] Bluetooth: BNEP socket layer initialized
> [ 19.951800] Bluetooth: RFCOMM TTY layer initialized
> [ 19.951820] Bluetooth: RFCOMM socket layer initialized
> [ 19.951837] Bluetooth: RFCOMM ver 1.11
> [ 20.819125] audit_printk_skb: 63 callbacks suppressed
> [ 20.819131] audit: type=1400 audit(1423255882.727:33): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince" pid=1323 comm="apparmor_parser"
> [ 20.819145] audit: type=1400 audit(1423255882.727:34): apparmor="STATUS" operation="profile_load" name="launchpad_integration" pid=1323 comm="apparmor_parser"
> [ 20.819157] audit: type=1400 audit(1423255882.727:35): apparmor="STATUS" operation="profile_load" name="sanitized_helper" pid=1323 comm="apparmor_parser"
> [ 20.819167] audit: type=1400 audit(1423255882.727:36): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince-previewer" pid=1323 comm="apparmor_parser"
> [ 20.819177] audit: type=1400 audit(1423255882.727:37): apparmor="STATUS" operation="profile_load" name="launchpad_integration" pid=1323 comm="apparmor_parser"
> [ 20.819187] audit: type=1400 audit(1423255882.727:38): apparmor="STATUS" operation="profile_load" name="sanitized_helper" pid=1323 comm="apparmor_parser"
> [ 20.819197] audit: type=1400 audit(1423255882.727:39): apparmor="STATUS" operation="profile_load" name="/usr/bin/evince-thumbnailer" pid=1323 comm="apparmor_parser"
> [ 20.819207] audit: type=1400 audit(1423255882.727:40): apparmor="STATUS" operation="profile_load" name="sanitized_helper" pid=1323 comm="apparmor_parser"
> [ 20.820465] [drm] Memory usable by graphics device = 2048M
> [ 20.820557] [drm] Replacing VGA console driver
> [ 20.829352] audit: type=1400 audit(1423255882.735:41): apparmor="STATUS" operation="profile_replace" name="launchpad_integration" pid=1323 comm="apparmor_parser"
> [ 20.829364] audit: type=1400 audit(1423255882.735:42): apparmor="STATUS" operation="profile_replace" name="sanitized_helper" pid=1323 comm="apparmor_parser"
> [ 20.847137] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [ 20.847141] [drm] Driver supports precise vblank timestamp query.
> [ 20.847949] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
> [ 20.862155] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
> [ 20.862997] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input9
> [ 20.864212] [drm] Initialized i915 1.6.0 20150130 for 0000:00:02.0 on minor 0
> [ 20.879430] fbcon: inteldrmfb (fb0) is primary device
> [ 20.880127] sound hdaudioC0D0: autoconfig for ALC269VC: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
> [ 20.880130] sound hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
> [ 20.880132] sound hdaudioC0D0: hp_outs=1 (0x15/0x0/0x0/0x0/0x0)
> [ 20.880134] sound hdaudioC0D0: mono: mono_out=0x0
> [ 20.880135] sound hdaudioC0D0: inputs:
> [ 20.880140] sound hdaudioC0D0: Internal Mic=0x19
> [ 20.880143] sound hdaudioC0D0: Mic=0x18
> [ 20.914432] iwlwifi 0000:01:00.0: CONFIG_IWLWIFI_DEBUG disabled
> [ 20.914434] iwlwifi 0000:01:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
> [ 20.914435] iwlwifi 0000:01:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
> [ 20.914438] iwlwifi 0000:01:00.0: Detected Intel(R) Centrino(R) Advanced-N 6230 AGN, REV=0xB0
> [ 20.914934] iwlwifi 0000:01:00.0: L1 Enabled - LTR Disabled
> [ 21.040534] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
> [ 21.072053] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
> [ 21.074129] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
> [ 21.075125] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
> [ 21.828181] Console: switching to colour frame buffer device 170x48
> [ 21.831638] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
> [ 21.831642] i915 0000:00:02.0: registered panic notifier
> [ 25.793536] r8169 0000:02:00.0 eth0: link down
> [ 25.793728] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
> [ 60.926428] usb 4-1.5: USB disconnect, device number 4
> [ 81.525579] PPP BSD Compression module registered
> [ 81.531611] PPP Deflate Compression module registered
> [ 147.667264] intel_pstate CPU 1 exiting
> [ 147.680991] smpboot: CPU 1 is now offline
> [ 161.870036] x86: Booting SMP configuration:
> [ 161.870040] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 161.880993] Disabled fast string operations
> [ 167.787918] PM: Syncing filesystems ... done.
> [ 167.943309] Freezing user space processes ... (elapsed 0.004 seconds) done.
> [ 167.948016] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
> [ 167.949796] Suspending console(s) (use no_console_suspend to debug)
> [ 167.952865] sd 1:0:0:0: [sdb] Synchronizing SCSI cache
> [ 167.953066] sd 0:0:0:0: [sda] Synchronizing SCSI cache
> [ 167.953309] sd 0:0:0:0: [sda] Stopping disk
> [ 167.955383] sd 1:0:0:0: [sdb] Stopping disk
> [ 168.576044] PM: suspend of devices complete after 625.207 msecs
> [ 168.592018] PM: late suspend of devices complete after 15.976 msecs
> [ 168.595254] r8169 0000:02:00.0: System wakeup enabled by ACPI
> [ 168.608157] PM: noirq suspend of devices complete after 16.145 msecs
> [ 168.608437] ACPI: Preparing to enter system sleep state S3
> [ 168.632143] PM: Saving platform NVS memory
> [ 168.632206] Disabling non-boot CPUs ...
> [ 168.632404] intel_pstate CPU 1 exiting
> [ 168.634869] smpboot: CPU 1 is now offline
> [ 168.647123] intel_pstate CPU 2 exiting
> [ 168.648655] smpboot: CPU 2 is now offline
> [ 168.665672] intel_pstate CPU 3 exiting
> [ 168.666055] Broke affinity for irq 1
> [ 168.666082] Broke affinity for irq 12
> [ 168.667155] smpboot: CPU 3 didn't die...
> [ 168.678463] ACPI: Low-level resume complete
> [ 168.678525] PM: Restoring platform NVS memory
> [ 168.679509] Enabling non-boot CPUs ...
> [ 168.679943] x86: Booting SMP configuration:
> [ 168.679945] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [ 168.690910] Disabled fast string operations
> [ 168.715831] CPU1 is up
> [ 168.716314] smpboot: Booting Node 0 Processor 2 APIC 0x2
> [ 168.727271] Disabled fast string operations
> [ 168.747958] CPU2 is up
> [ 168.748307] smpboot: Booting Node 0 Processor 3 APIC 0x3
> [ 168.759268] Disabled fast string operations
> [ 168.780328] CPU3 is up
> [ 168.785510] ACPI : EC: 0 stale EC events cleared
> [ 168.785517] ACPI: Waking up from system sleep state S3
> [ 168.851153] pcieport 0000:00:1c.4: System wakeup disabled by ACPI
> [ 168.852214] PM: noirq resume of devices complete after 17.604 msecs
> [ 168.854123] PM: early resume of devices complete after 1.840 msecs
> [ 168.855178] usb usb1: root hub lost power or was reset
> [ 168.855181] usb usb2: root hub lost power or was reset
> [ 168.855296] r8169 0000:02:00.0: System wakeup disabled by ACPI
> [ 168.857573] rtc_cmos 00:01: System wakeup disabled by ACPI
> [ 168.859751] iwlwifi 0000:01:00.0: RF_KILL bit toggled to enable radio.
> [ 168.869871] sd 0:0:0:0: [sda] Starting disk
> [ 168.869918] sd 1:0:0:0: [sdb] Starting disk
> [ 169.073567] usb 3-1.4: reset high-speed USB device number 4 using ehci-pci
> [ 169.205201] ata5: SATA link down (SStatus 0 SControl 300)
> [ 169.205250] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [ 169.205463] ata4: SATA link down (SStatus 0 SControl 300)
> [ 169.209525] ata2.00: configured for UDMA/133
> [ 169.261569] usb 4-1.4: reset low-speed USB device number 3 using ehci-pci
> [ 169.548464] PM: resume of devices complete after 694.827 msecs
> [ 169.550654] Restarting tasks ...
> [ 169.551364] usb 3-1.2: USB disconnect, device number 3
> [ 169.560023] done.
> [ 169.564450] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
> [ 169.564547] option 3-1.2:1.0: device disconnected
> [ 169.565384] cdc_ether 3-1.2:1.1 wwan0: unregister 'cdc_ether' usb-0000:00:1a.0-1.2, Mobile Broadband Network Device
> [ 169.591382] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
> [ 169.591447] option 3-1.2:1.3: device disconnected
> [ 169.593250] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
> [ 169.593313] option 3-1.2:1.4: device disconnected
> [ 171.283809] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [ 171.286318] ata1.00: configured for UDMA/133
> [ 172.003365] usb 3-1.2: new high-speed USB device number 5 using ehci-pci
> [ 172.177260] r8169 0000:02:00.0 eth0: link down
> [ 172.177333] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
> [ 172.193326] usb 3-1.2: New USB device found, idVendor=12d1, idProduct=1446
> [ 172.193332] usb 3-1.2: New USB device strings: Mfr=3, Product=2, SerialNumber=0
> [ 172.193334] usb 3-1.2: Product: HUAWEI Mobile
> [ 172.193336] usb 3-1.2: Manufacturer: HUAWEI Technology
> [ 172.197128] usb-storage 3-1.2:1.0: USB Mass Storage device detected
> [ 172.197769] scsi host13: usb-storage 3-1.2:1.0
> [ 172.198439] usb-storage 3-1.2:1.1: USB Mass Storage device detected
> [ 172.198703] scsi host14: usb-storage 3-1.2:1.1
> [ 173.196795] scsi 13:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
> [ 173.197004] scsi 14:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2
> [ 173.201759] sr 13:0:0:0: [sr0] scsi-1 drive
> [ 173.203885] sr 13:0:0:0: Attached scsi CD-ROM sr0
> [ 173.204681] sr 13:0:0:0: Attached scsi generic sg2 type 5
> [ 173.207294] sd 14:0:0:0: Attached scsi generic sg3 type 0
> [ 173.211005] sd 14:0:0:0: [sdc] Attached SCSI removable disk
> [ 173.519199] usb 3-1.2: USB disconnect, device number 5
> [ 177.555645] usb 3-1.2: new high-speed USB device number 6 using ehci-pci
> [ 177.650499] usb 3-1.2: New USB device found, idVendor=12d1, idProduct=1436
> [ 177.650504] usb 3-1.2: New USB device strings: Mfr=4, Product=3, SerialNumber=0
> [ 177.650507] usb 3-1.2: Product: HUAWEI Mobile
> [ 177.650509] usb 3-1.2: Manufacturer: HUAWEI Technology
> [ 177.654209] usb-storage 3-1.2:1.0: USB Mass Storage device detected
> [ 177.654652] option 3-1.2:1.0: GSM modem (1-port) converter detected
> [ 177.655212] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB0
> [ 177.655735] usb-storage 3-1.2:1.1: USB Mass Storage device detected
> [ 177.659395] cdc_ether 3-1.2:1.1 wwan0: register 'cdc_ether' at usb-0000:00:1a.0-1.2, Mobile Broadband Network Device, 02:50:f3:00:00:00
> [ 177.659931] usb-storage 3-1.2:1.3: USB Mass Storage device detected
> [ 177.660372] option 3-1.2:1.3: GSM modem (1-port) converter detected
> [ 177.660685] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB1
> [ 177.660975] usb-storage 3-1.2:1.4: USB Mass Storage device detected
> [ 177.661307] option 3-1.2:1.4: GSM modem (1-port) converter detected
> [ 177.661603] usb 3-1.2: GSM modem (1-port) converter now attached to ttyUSB2
> [ 177.661889] usb-storage 3-1.2:1.5: USB Mass Storage device detected
> [ 177.662510] scsi host19: usb-storage 3-1.2:1.5
> [ 177.663042] usb-storage 3-1.2:1.6: USB Mass Storage device detected
> [ 177.663659] scsi host20: usb-storage 3-1.2:1.6
> [ 178.660445] scsi 19:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
> [ 178.664493] scsi 20:0:0:0: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2
> [ 178.665097] sr 19:0:0:0: [sr0] scsi-1 drive
> [ 178.666133] sr 19:0:0:0: Attached scsi CD-ROM sr0
> [ 178.667232] sr 19:0:0:0: Attached scsi generic sg2 type 5
> [ 178.668809] sd 20:0:0:0: Attached scsi generic sg3 type 0
> [ 178.672325] sd 20:0:0:0: [sdc] Attached SCSI removable disk

> Martin K. Petersen (1):
> block: Quiesce zeroout wrapper
>
> Sedat Dilek (1):
> Merge branch 'for-next20150204/tracing-tlb-x86-fixes' into 3.19.0-rc7-next-20150204.12-iniza-small
>
> Steven Rostedt (Red Hat) (2):
> tracing: Add condition check to RCU lockdep checks
> x86/tbl/trace: Do not trace on CPU that is offline
>
> block/blk-lib.c | 26 +++++++-------------------
> include/linux/tracepoint.h | 2 +-
> include/trace/events/tlb.h | 4 +++-
> 3 files changed, 11 insertions(+), 21 deletions(-)
>
> diff --git a/block/blk-lib.c b/block/blk-lib.c
> index 715e948f58a4..7688ee3f5d72 100644
> --- a/block/blk-lib.c
> +++ b/block/blk-lib.c
> @@ -286,7 +286,6 @@ static int __blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
> * @discard: whether to discard the block range
> *
> * Description:
> -
> * Zero-fill a block range. If the discard flag is set and the block
> * device guarantees that subsequent READ operations to the block range
> * in question will return zeroes, the blocks will be discarded. Should
> @@ -303,26 +302,15 @@ int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
> sector_t nr_sects, gfp_t gfp_mask, bool discard)
> {
> struct request_queue *q = bdev_get_queue(bdev);
> - unsigned char bdn[BDEVNAME_SIZE];
> -
> - if (discard && blk_queue_discard(q) && q->limits.discard_zeroes_data) {
>
> - if (!blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, 0))
> - return 0;
> -
> - bdevname(bdev, bdn);
> - pr_warn("%s: DISCARD failed. Manually zeroing.\n", bdn);
> - }
> + if (discard && blk_queue_discard(q) && q->limits.discard_zeroes_data &&
> + blkdev_issue_discard(bdev, sector, nr_sects, gfp_mask, 0) == 0)
> + return 0;
>
> - if (bdev_write_same(bdev)) {
> -
> - if (!blkdev_issue_write_same(bdev, sector, nr_sects, gfp_mask,
> - ZERO_PAGE(0)))
> - return 0;
> -
> - bdevname(bdev, bdn);
> - pr_warn("%s: WRITE SAME failed. Manually zeroing.\n", bdn);
> - }
> + if (bdev_write_same(bdev) &&
> + blkdev_issue_write_same(bdev, sector, nr_sects, gfp_mask,
> + ZERO_PAGE(0)) == 0)
> + return 0;
>
> return __blkdev_issue_zeroout(bdev, sector, nr_sects, gfp_mask);
> }
> diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
> index e08e21e5f601..c72851328ca9 100644
> --- a/include/linux/tracepoint.h
> +++ b/include/linux/tracepoint.h
> @@ -173,7 +173,7 @@ extern void syscall_unregfunc(void);
> TP_PROTO(data_proto), \
> TP_ARGS(data_args), \
> TP_CONDITION(cond),,); \
> - if (IS_ENABLED(CONFIG_LOCKDEP)) { \
> + if (IS_ENABLED(CONFIG_LOCKDEP) && (cond)) { \
> rcu_read_lock_sched_notrace(); \
> rcu_dereference_sched(__tracepoint_##name.funcs);\
> rcu_read_unlock_sched_notrace(); \
> diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h
> index 13391d288107..0e7635765153 100644
> --- a/include/trace/events/tlb.h
> +++ b/include/trace/events/tlb.h
> @@ -13,11 +13,13 @@
> { TLB_LOCAL_SHOOTDOWN, "local shootdown" }, \
> { TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" }
>
> -TRACE_EVENT(tlb_flush,
> +TRACE_EVENT_CONDITION(tlb_flush,
>
> TP_PROTO(int reason, unsigned long pages),
> TP_ARGS(reason, pages),
>
> + TP_CONDITION(cpu_online(smp_processor_id())),
> +
> TP_STRUCT__entry(
> __field( int, reason)
> __field(unsigned long, pages)