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My ubuntu13.04 starts up very slow. This is the file for dmesg. The part of output is as follows. Please give me some help ! Thanks !

[   10.008425] Console: switching to colour frame buffer device 160x50
[   10.011101] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[   10.011103] i915 0000:00:02.0: registered panic notifier
[   10.014902] acpi device:01: registered as cooling_device4
[   10.016505] ACPI: Video Device [VID] (multi-head: yes  rom: no  post: no)
[   10.016554] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input5
[   10.016881] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[   10.156244] Non-volatile memory driver v1.3
[   10.323683] uvcvideo: Found UVC 1.00 device Integrated Camera (17ef:480f)
[   10.324875] input: Integrated Camera as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/input/input6
[   10.324955] usbcore: registered new interface driver uvcvideo
[   10.324957] USB Video Class driver (1.1.1)
[   10.336474] thinkpad_acpi: ThinkPad ACPI Extras v0.24
[   10.336477] thinkpad_acpi: http://ibm-acpi.sf.net/
[   10.336479] thinkpad_acpi: ThinkPad BIOS 6IET68WW (1.28 ), EC 6IHT36WW-1.11
[   10.336480] thinkpad_acpi: Lenovo ThinkPad T410, model 2516ADU
[   10.337853] thinkpad_acpi: detected a 8-level brightness capable ThinkPad
[   10.338022] thinkpad_acpi: radio switch found; radios are enabled
[   10.338040] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
[   10.338042] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
[   10.342485] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one
[   10.342588] thinkpad_acpi: Console audio control enabled, mode: monitor (read only)
[   10.343906] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input7
[   10.702531] type=1400 audit(1381773369.435:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=761 comm="apparmor_parser"
[   10.702618] type=1400 audit(1381773369.435:3): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=760 comm="apparmor_parser"
[   10.702625] type=1400 audit(1381773369.435:4): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=777 comm="apparmor_parser"
[   10.702865] type=1400 audit(1381773369.435:5): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=761 comm="apparmor_parser"
[   10.703050] type=1400 audit(1381773369.435:6): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=761 comm="apparmor_parser"
[   10.703087] type=1400 audit(1381773369.439:7): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=760 comm="apparmor_parser"
[   10.703094] type=1400 audit(1381773369.439:8): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=777 comm="apparmor_parser"
[   10.703354] type=1400 audit(1381773369.439:9): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=760 comm="apparmor_parser"
[   10.703360] type=1400 audit(1381773369.439:10): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=777 comm="apparmor_parser"
[   12.029891] kvm: disabled by bios
[   12.033653] kvm: disabled by bios
[   12.037477] kvm: disabled by bios
[   12.041556] kvm: disabled by bios
[   12.086359] snd_hda_intel 0000:00:1b.0: irq 44 for MSI/MSI-X
[   12.223049] hda_codec: CX20585: BIOS auto-probing.
[   12.254334] init: failsafe main process (846) killed by TERM signal
[   12.327705] input: HDA Intel MID HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
[   12.327794] input: HDA Intel MID HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
[   12.327866] input: HDA Intel MID HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[   12.327934] input: HDA Intel MID Dock Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[   12.327999] input: HDA Intel MID Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[   12.328064] input: HDA Intel MID Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input13
[   12.328131] input: HDA Intel MID Dock Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input14
[   13.327555] Bluetooth: Core ver 2.16
[   13.327577] NET: Registered protocol family 31
[   13.327578] Bluetooth: HCI device and connection manager initialized
[   13.327587] Bluetooth: HCI socket layer initialized
[   13.327589] Bluetooth: L2CAP socket layer initialized
[   13.327598] Bluetooth: SCO socket layer initialized
[   13.332376] Bluetooth: RFCOMM TTY layer initialized
[   13.332387] Bluetooth: RFCOMM socket layer initialized
[   13.332388] Bluetooth: RFCOMM ver 1.11
[   13.423450] init: avahi-cups-reload main process (930) terminated with status 1
[   13.475367] psmouse serio2: alps: Unknown ALPS touchpad: E7=10 00 64, EC=10 00 64
[   13.560875] ppdev: user-space parallel port driver
[   13.640278] type=1400 audit(1381773372.379:11): apparmor="STATUS" operation="profile_load" name="/usr/lib/cups/backend/cups-pdf" pid=957 comm="apparmor_parser"
[   13.947793] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   13.947797] Bluetooth: BNEP filters: protocol multicast
[   13.947809] Bluetooth: BNEP socket layer initialized
[   13.949613] intel ips 0000:00:1f.6: i915 driver attached, reenabling gpu turbo
[   14.384944] cfg80211: World regulatory domain updated:
[   14.384948] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[   14.384949] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   14.384951] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[   14.384952] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[   14.384954] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   14.384955] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   14.384968] cfg80211: Calling CRDA for country: EC
[   14.389175] cfg80211: Regulatory domain changed to country: EC
[   14.389178] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[   14.389180] cfg80211:   (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[   14.389182] cfg80211:   (5170000 KHz - 5250000 KHz @ 20000 KHz), (300 mBi, 1700 mBm)
[   14.389183] cfg80211:   (5250000 KHz - 5330000 KHz @ 20000 KHz), (300 mBi, 2300 mBm)
[   14.389184] cfg80211:   (5735000 KHz - 5835000 KHz @ 20000 KHz), (300 mBi, 3000 mBm)
[   16.704564] audit_printk_skb: 3 callbacks suppressed
[   16.704568] type=1400 audit(1381773375.447:13): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1052 comm="apparmor_parser"
[   16.704929] type=1400 audit(1381773375.451:14): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1052 comm="apparmor_parser"
[   16.705116] type=1400 audit(1381773375.451:15): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1052 comm="apparmor_parser"
[   16.823036] type=1400 audit(1381773375.567:16): apparmor="STATUS" operation="profile_load" name="/usr/lib/lightdm/lightdm/lightdm-guest-session-wrapper" pid=1049 comm="apparmor_parser"
[   16.823373] type=1400 audit(1381773375.567:17): apparmor="STATUS" operation="profile_load" name="/usr/lib/lightdm/lightdm/lightdm-guest-session-wrapper//chromium_browser" pid=1049 comm="apparmor_parser"
[   16.823544] type=1400 audit(1381773375.567:18): apparmor="STATUS" operation="profile_load" name="/usr/lib/x86_64-linux-gnu/lightdm-remote-session-freerdp/freerdp-session-wrapper" pid=1050 comm="apparmor_parser"
[   16.823817] type=1400 audit(1381773375.567:19): apparmor="STATUS" operation="profile_load" name="/usr/lib/x86_64-linux-gnu/lightdm-remote-session-freerdp/freerdp-session-wrapper//chromium_browser" pid=1050 comm="apparmor_parser"
[   16.824702] type=1400 audit(1381773375.571:20): apparmor="STATUS" operation="profile_load" name="/usr/lib/x86_64-linux-gnu/lightdm-remote-session-uccsconfigure/uccsconfigure-session-wrapper" pid=1051 comm="apparmor_parser"
[   16.825120] type=1400 audit(1381773375.571:21): apparmor="STATUS" operation="profile_load" name="/usr/lib/x86_64-linux-gnu/lightdm-remote-session-uccsconfigure/uccsconfigure-session-wrapper//chromium_browser" pid=1051 comm="apparmor_parser"
[   16.828216] type=1400 audit(1381773375.571:22): apparmor="STATUS" operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" pid=1056 comm="apparmor_parser"
[   17.425603] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3
[   17.486602] e1000e 0000:00:19.0: irq 40 for MSI/MSI-X
[   17.587282] e1000e 0000:00:19.0: irq 40 for MSI/MSI-X
[   17.587397] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   17.587729] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   17.686831] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/serio2/input/input15
[   17.874991] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   17.875319] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   23.116015] wlan0: authenticate with 3c:ce:73:f9:dc:93
[   23.133706] wlan0: direct probe to 3c:ce:73:f9:dc:93 (try 1/3)
[   23.337307] wlan0: direct probe to 3c:ce:73:f9:dc:93 (try 2/3)
[   23.540934] wlan0: direct probe to 3c:ce:73:f9:dc:93 (try 3/3)
[   23.744754] wlan0: authentication with 3c:ce:73:f9:dc:93 timed out
[   24.192352] wlan0: authenticate with c8:f9:f9:be:b2:e2
[   24.207852] wlan0: direct probe to c8:f9:f9:be:b2:e2 (try 1/3)
[   24.411434] wlan0: direct probe to c8:f9:f9:be:b2:e2 (try 2/3)
[   24.615096] wlan0: direct probe to c8:f9:f9:be:b2:e2 (try 3/3)
[   24.818746] wlan0: authentication with c8:f9:f9:be:b2:e2 timed out
[   25.272295] wlan0: authenticate with 3c:ce:73:f9:be:53
[   25.290007] wlan0: direct probe to 3c:ce:73:f9:be:53 (try 1/3)
[   25.493570] wlan0: direct probe to 3c:ce:73:f9:be:53 (try 2/3)
[   25.697236] wlan0: direct probe to 3c:ce:73:f9:be:53 (try 3/3)
[   25.834042] init: plymouth-stop pre-start process (1458) terminated with status 1
[   25.900866] wlan0: authentication with 3c:ce:73:f9:be:53 timed out
[   26.346460] wlan0: authenticate with 3c:ce:73:f9:e2:e2
[   26.356473] wlan0: direct probe to 3c:ce:73:f9:e2:e2 (try 1/3)
[   26.559740] wlan0: direct probe to 3c:ce:73:f9:e2:e2 (try 2/3)
[   26.763379] wlan0: direct probe to 3c:ce:73:f9:e2:e2 (try 3/3)
[   26.967050] wlan0: authentication with 3c:ce:73:f9:e2:e2 timed out
[   27.551705] wlan0: authenticate with 3c:ce:73:f9:be:d3
[   27.570046] wlan0: direct probe to 3c:ce:73:f9:be:d3 (try 1/3)
[   27.773666] wlan0: direct probe to 3c:ce:73:f9:be:d3 (try 2/3)
[   27.977286] wlan0: direct probe to 3c:ce:73:f9:be:d3 (try 3/3)
[   28.180931] wlan0: authentication with 3c:ce:73:f9:be:d3 timed out
[   28.626109] wlan0: authenticate with 3c:ce:73:f7:23:a3
[   28.644219] wlan0: send auth to 3c:ce:73:f7:23:a3 (try 1/3)
[   28.646999] wlan0: authenticated
[   28.648138] wlan0: associate with 3c:ce:73:f7:23:a3 (try 1/3)
[   28.650981] wlan0: RX AssocResp from 3c:ce:73:f7:23:a3 (capab=0x421 status=0 aid=1)
[   28.651995] wlan0: associated
[   28.652005] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   28.652492] cfg80211: Calling CRDA for country: US
[   28.655752] cfg80211: Regulatory domain changed to country: US
[   28.655755] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[   28.655757] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[   28.655758] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[   28.655760] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   28.655761] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   28.655762] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   28.655763] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
[   35.588366] init: winbind main process (1966) terminated with status 127
[   35.588397] init: winbind main process ended, respawning
[   35.592019] init: winbind main process (1970) terminated with status 127
[   35.592042] init: winbind main process ended, respawning
[   35.595160] init: winbind main process (1972) terminated with status 127
[   35.595183] init: winbind main process ended, respawning
[   35.598604] init: winbind main process (1974) terminated with status 127
[   35.598627] init: winbind main process ended, respawning
[   35.601817] init: winbind main process (1976) terminated with status 127
[   35.601840] init: winbind main process ended, respawning
[   35.605210] init: winbind main process (1978) terminated with status 127
[   35.605232] init: winbind main process ended, respawning
[   35.608343] init: winbind main process (1980) terminated with status 127
[   35.608366] init: winbind main process ended, respawning
[   35.611555] init: winbind main process (1982) terminated with status 127
[   35.611576] init: winbind main process ended, respawning
[   35.614806] init: winbind main process (1984) terminated with status 127
[   35.614830] init: winbind main process ended, respawning
[   35.618046] init: winbind main process (1986) terminated with status 127
[   35.618070] init: winbind main process ended, respawning
[   35.621170] init: winbind main process (1988) terminated with status 127
[   35.621193] init: winbind respawning too fast, stopped
[  117.106097] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None
[  117.106153] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[  152.711465] wlan0: authenticate with 68:bc:0c:0b:6d:91
[  152.721606] wlan0: direct probe to 68:bc:0c:0b:6d:91 (try 1/3)
[  152.721659] cfg80211: Calling CRDA to update world regulatory domain
[  152.726561] cfg80211: World regulatory domain updated:
[  152.726566] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[  152.726568] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  152.726571] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[  152.726573] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[  152.726575] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  152.726577] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  152.952495] wlan0: send auth to 68:bc:0c:0b:6d:91 (try 2/3)
[  152.954596] wlan0: authenticated
[  153.195876] wlan0: authenticate with 3c:ce:73:f7:23:a3
[  153.218107] wlan0: send auth to 3c:ce:73:f7:23:a3 (try 1/3)
[  153.219112] wlan0: authenticated
[  153.223764] wlan0: associate with 3c:ce:73:f7:23:a3 (try 1/3)
[  153.226217] wlan0: RX AssocResp from 3c:ce:73:f7:23:a3 (capab=0x421 status=0 aid=1)
[  153.227240] wlan0: associated
[  153.227308] cfg80211: Calling CRDA for country: US
[  153.232234] cfg80211: Regulatory domain changed to country: US
[  153.232239] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[  153.232242] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
[  153.232244] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
[  153.232247] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  153.232249] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  153.232251] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[  153.232253] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
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