Lenovo X240 keeps rebooting with Kernel-Power (Event ID:41); Windows 7 Professional

Hi All
I have my newly Lenovo x240 installed with Windows 7. Sometime, it can boot up, but sometimes it keep rebooting during the windows logo appear. 
When it goes wrong, it will have the following screen.
But, if I am lucky, after several "auto-reboot", I can get into the Windows 7. But sometimes, it shows the similar screen above (without windows logo but with what my current desktop), and it then auto reboots.
This scenario is so random, I don't know how to fix it. At this stage, I don't want to use system restore, as some software is installed by my client which is not located near my office, while the reboot issue happens before those installation
Here are some event 41 details that I captured.
7/31/2014, 0808 am
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
  <Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
  <EventID>41</EventID>
  <Version>2</Version>
  <Level>1</Level>
  <Task>63</Task>
  <Opcode>0</Opcode>
  <Keywords>0x8000000000000002</Keywords>
  <TimeCreated SystemTime="2014-07-31T06:08:22.584010700Z" />
  <EventRecordID>14128</EventRecordID>
  <Correlation />
  <Execution ProcessID="4" ThreadID="8" />
  <Channel>System</Channel>
  <Computer>LAPTOP-JACH.Greenpeak.com</Computer>
  <Security UserID="S-1-5-18" />
  </System>
- <EventData>
  <Data Name="BugcheckCode">0</Data>
  <Data Name="BugcheckParameter1">0x0</Data>
  <Data Name="BugcheckParameter2">0x0</Data>
  <Data Name="BugcheckParameter3">0x0</Data>
  <Data Name="BugcheckParameter4">0x0</Data>
  <Data Name="SleepInProgress">false</Data>
  <Data Name="PowerButtonTimestamp">0</Data>
  </EventData>
  </Event>
7/30/2014, 1058 pm
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
  <Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
  <EventID>41</EventID>
  <Version>2</Version>
  <Level>1</Level>
  <Task>63</Task>
  <Opcode>0</Opcode>
  <Keywords>0x8000000000000002</Keywords>
  <TimeCreated SystemTime="2014-07-30T20:58:49.334410300Z" />
  <EventRecordID>13947</EventRecordID>
  <Correlation />
  <Execution ProcessID="4" ThreadID="8" />
  <Channel>System</Channel>
  <Computer>LAPTOP-JACH.Greenpeak.com</Computer>
  <Security UserID="S-1-5-18" />
  </System>
- <EventData>
  <Data Name="BugcheckCode">0</Data>
  <Data Name="BugcheckParameter1">0x0</Data>
  <Data Name="BugcheckParameter2">0x0</Data>
  <Data Name="BugcheckParameter3">0x0</Data>
  <Data Name="BugcheckParameter4">0x0</Data>
  <Data Name="SleepInProgress">true</Data>
  <Data Name="PowerButtonTimestamp">130512274872126554</Data>
  </EventData>
 </Event>
7/29/2014, 1125 pm
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
  <Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
  <EventID>41</EventID>
  <Version>2</Version>
  <Level>1</Level>
  <Task>63</Task>
  <Opcode>0</Opcode>
  <Keywords>0x8000000000000002</Keywords>
  <TimeCreated SystemTime="2014-07-29T21:25:43.490410600Z" />
  <EventRecordID>10450</EventRecordID>
  <Correlation />
  <Execution ProcessID="4" ThreadID="8" />
  <Channel>System</Channel>
  <Computer>LAPTOP-JACH.Greenpeak.com</Computer>
  <Security UserID="S-1-5-18" />
  </System>
- <EventData>
  <Data Name="BugcheckCode">0</Data>
  <Data Name="BugcheckParameter1">0x0</Data>
  <Data Name="BugcheckParameter2">0x0</Data>
  <Data Name="BugcheckParameter3">0x0</Data>
  <Data Name="BugcheckParameter4">0x0</Data>
  <Data Name="SleepInProgress">false</Data>
  <Data Name="PowerButtonTimestamp">130511426772773667</Data>
  </EventData>
 </Event>
7/29/2014, 1034 pm
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
  <Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
  <EventID>41</EventID>
  <Version>2</Version>
  <Level>1</Level>
  <Task>63</Task>
  <Opcode>0</Opcode>
  <Keywords>0x8000000000000002</Keywords>
  <TimeCreated SystemTime="2014-07-29T20:34:46.540407100Z" />
  <EventRecordID>9957</EventRecordID>
  <Correlation />
  <Execution ProcessID="4" ThreadID="8" />
  <Channel>System</Channel>
  <Computer>LAPTOP-JACH.Greenpeak.com</Computer>
  <Security UserID="S-1-5-18" />
  </System>
- <EventData>
  <Data Name="BugcheckCode">0</Data>
  <Data Name="BugcheckParameter1">0x0</Data>
  <Data Name="BugcheckParameter2">0x0</Data>
  <Data Name="BugcheckParameter3">0x0</Data>
  <Data Name="BugcheckParameter4">0x0</Data>
  <Data Name="SleepInProgress">true</Data>
  <Data Name="PowerButtonTimestamp">130511396438935880</Data>
 </EventData>
  </Event>
Could you please help?
BR
Jacky

Hi JackyCheung,
I would strongly you to ensure you have the latest drivers and also Windows Updates installed before proceeding with anything else. Have you ran the diagnostics to see if anything hardware related maybe causing the issue?
In this scenario I highly doubt System Restore would help, was it working OK when you got it? what has changed since it was working without the issue?
Regards
Roshan

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    0x0081B744 0x0081B9D0 0x007FDCDC 0x002E9A80 0x002EB94C 0x0008C248 0x00029234 0x000233F8
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    Kernel loadable modules in backtrace (with dependencies):
    com.apple.GeForce(4.1.8)@0x7f2000
    dependency: com.apple.iokit.IOPCIFamily(1.7)@0x491000
    dependency: com.apple.iokit.IOGraphicsFamily(1.4.2)@0x5ef000
    dependency: com.apple.iokit.IONDRVSupport(1.4.2)@0x613000
    dependency: com.apple.NVDAResman(4.1.8)@0x629000
    com.apple.iokit.IOATAFamily(1.6.0f2)@0x516000
    Proceeding back via exception chain:
    Exception state (sv=0x426E9C80)
    previously dumped as "Latest" state. skipping...
    Exception state (sv=0x42A57780)
    PC=0x9000B348; MSR=0x0000F030; DAR=0xEBF98000; DSISR=0x42000000; LR=0x9000B29C; R1=0xBFFEDF80; XCP=0x00000030 (0xC00 - System call)
    Kernel version:
    Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC
    panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
    Latest stack backtrace for cpu 0:
    Backtrace:
    0x000954F8 0x00095A10 0x00026898 0x000A8204 0x000ABB80
    Proceeding back via exception chain:
    Exception state (sv=0x426E9C80)
    PC=0x0003FFD4; MSR=0x0000B030; DAR=0x04FFAB84; DSISR=0x40000000; LR=0x0003FFBC; R1=0x2C4CB1A0; XCP=0x0000000C (0x300 - Data access)
    Backtrace:
    0x00517B10 0x00066440 0x00072C8C 0x00067430 0x00086DBC 0x00086F28
    0x002D8EE4 0x002B219C 0x002D9150 0x002D85B4 0x002D8D30 0x002DA328 0x0082013C 0x0081FDC0
    0x0081B744 0x0081B9D0 0x007FDCDC 0x002E9A80 0x002EB94C 0x0008C248 0x00029234 0x000233F8
    0x000ABEAC 0x5245463D
    Kernel loadable modules in backtrace (with dependencies):
    com.apple.GeForce(4.1.8)@0x7f2000
    dependency: com.apple.iokit.IOPCIFamily(1.7)@0x491000
    dep
    Tue Oct 14 10:19:36 2008
    Unresolved kernel trap(cpu 1): 0x300 - Data access DAR=0x0000000004FFAB2C PC=0x000000000003FFD4
    Latest crash info for cpu 1:
    Exception state (sv=0x4874DC80)
    PC=0x0003FFD4; MSR=0x00009030; DAR=0x04FFAB2C; DSISR=0x40000000; LR=0x0003FFBC; R1=0x2C56BB20; XCP=0x0000000C (0x300 - Data access)
    Backtrace:
    0x00000000 0x00066440 0x00072C8C 0x00067430 0x00085E58 0x000578CC
    0x00029234 0x000233F8 0x000ABEAC 0x00000000
    Proceeding back via exception chain:
    Exception state (sv=0x4874DC80)
    previously dumped as "Latest" state. skipping...
    Exception state (sv=0x42FBD280)
    PC=0x9000B348; MSR=0x0200F030; DAR=0x3C8F5000; DSISR=0x42000000; LR=0x9000B29C; R1=0xBFFFCAD0; XCP=0x00000030 (0xC00 - System call)
    Kernel version:
    Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC
    panic(cpu 1 caller 0xFFFF0003): 0x300 - Data access
    Latest stack backtrace for cpu 1:
    Backtrace:
    0x000954F8 0x00095A10 0x00026898 0x000A8204 0x000ABB80
    Proceeding back via exception chain:
    Exception state (sv=0x4874DC80)
    PC=0x0003FFD4; MSR=0x00009030; DAR=0x04FFAB2C; DSISR=0x40000000; LR=0x0003FFBC; R1=0x2C56BB20; XCP=0x0000000C (0x300 - Data access)
    Backtrace:
    0x00000000 0x00066440 0x00072C8C 0x00067430 0x00085E58 0x000578CC
    0x00029234 0x000233F8 0x000ABEAC 0x00000000
    Exception state (sv=0x42FBD280)
    PC=0x9000B348; MSR=0x0200F030; DAR=0x3C8F5000; DSISR=0x42000000; LR=0x9000B29C; R1=0xBFFFCAD0; XCP=0x00000030 (0xC00 - System call)
    Kernel version:
    Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC
    Tue Oct 14 10:31:37 2008
    panic(cpu 1 caller 0x00064068): vmfaultunwire: failure
    Latest stack backtrace for cpu 1:
    Backtrace:
    0x000954F8 0x00095A10 0x00026898 0x00064068 0x0006B1F0 0x0006B8C8 0x000657F4 0x0002C0C0
    0x0005FBC8 0x000381A4 0x0003992C 0x00039A80 0x000A9714
    Proceeding back via exception chain:
    Exception state (sv=0x00C39C80)
    PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
    Kernel version:
    Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC

    just like you guys I was getting frequent kernal panics and have to restart mac each time.
    i tried Diskwarrior too, but that doesnt resolve it. the techie at alsoft.com (diskwarrior) says its was a hardware problem. run a ram test like apple hardware test to chk ram. I do not have apple hardware test. instead there is a program called 'Memtest' which is obtained thru [email protected] for only a small charge. you then are able to download it.
    I ran the memtest and found that One of my mem strips is defective. Memtest doesn't tell which one is bad, so you still have to trial and error by swapping strips in and out 7 rerun the test. I did find the defective strip finally. i then replaced it with a new 1 GB ddr pc2700strip. I ran the test again and no failure or flaws. Running the memtest a few times is time consuming but it works!!! I've had no more Kernal Panics!!! everything else runs better too. Version 4.22 is current but they may come out with updates that may actually identify the bad strip in memory.
    Good luck on this matter.

  • Lenovo A6000 keeps rebooting after upgrading to Kraft-A6000_S029_150212

    I just updated my new Lenovo A6000 smartphone to Kraft-A6000_S029_150212 version. Since then, it is continuously rebooting. It comes up, stays for 5 seconds, UI hangs and then reboots.Need urgent help on how to recover.With great difficulty, was able to switch off the phone as it wasn't giving me enough time to power off. The continuous booting up sound was irritating people sitting nearby and I wasn't even able to turn off that sound.

    Will check with service centre and update here. FYI - I had received the phone on 13-Feb-2015 and as soon as i switched it on, it prompted for a software upgrade. So I upgraded (over WiFi) with whatever was the latest software version available at that time. After that upgrade also, the phone used to automatically reboot atleast 3-4 times a day randomly. I thought that could be a bug in that version and to take care of that, I upgraded to the latest version this morning only to end up in constant reboot mode. So not sure if this could be a manufacturing defect too. Thanks.

  • CISCO AIR-AP1252AG-E-K9 is keep rebooting with no reason

    Hello
    I have an cisco AIR-AP1252AG-E-K9  and it reeboots randomly with no aparent reason
    this is the configuration
    aaa group server radius rad_eap
    server 10.10.1.2 auth-port 1645 acct-port 1646
    aaa group server radius rad_mac
    aaa group server radius rad_acct
    server 10.10.1.2 auth-port 1645 acct-port 1646
    aaa group server radius rad_admin
    aaa group server tacacs+ tac_admin
    aaa group server radius rad_pmip
    aaa group server radius dummy
    aaa authentication login eap_methods group rad_eap
    aaa authentication login mac_methods local
    aaa authorization exec default local
    aaa accounting network acct_methods start-stop group rad_acct
    aaa session-id common
    clock timezone +0200 2
    ip domain name diamant.local
    dot11 activity-timeout unknown default 32400
    dot11 activity-timeout client default 32400 maximum 32400
    dot11 activity-timeout repeater default 32400 maximum 32400
    dot11 activity-timeout workgroup-bridge default 32400 maximum 32400
    dot11 activity-timeout bridge default 32400 maximum 32400
    dot11 ssid cisco
       authentication open eap eap_methods
       authentication network-eap eap_methods
       authentication key-management wpa
       guest-mode
    dot11 ssid diamant4
       authentication open eap eap_methods
       authentication network-eap eap_methods
       authentication key-management wpa
       guest-mode
    dot11 arp-cache
    power inline negotiation prestandard source
    username root privilege 15 password 7 060506324F41
    username Cisco privilege 15 password 7 1047051613121F120D0A2D2E2862626C7A46
    bridge irb
    interface Dot11Radio0
    no ip address
    no ip route-cache
    encryption mode ciphers aes-ccm
    ssid diamant4
    speed  basic-1.0 basic-2.0 basic-5.5 basic-11.0 basic-6.0 basic-9.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.
    channel width 40-above
    channel 2412
    station-role root
    payload-encapsulation dot1h
    bridge-group 1
    bridge-group 1 subscriber-loop-control
    bridge-group 1 block-unknown-source
    no bridge-group 1 source-learning
    no bridge-group 1 unicast-flooding
    bridge-group 1 spanning-disabled
    interface Dot11Radio1
    no ip address
    no ip route-cache
    encryption mode ciphers aes-ccm
    ssid cisco
    dfs band 1 3 block
    speed  basic-6.0 basic-9.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.
    channel width 40-above
    channel dfs
    station-role root
    payload-encapsulation dot1h
    world-mode legacy
    bridge-group 1
    bridge-group 1 subscriber-loop-control
    bridge-group 1 block-unknown-source
    no bridge-group 1 source-learning
    no bridge-group 1 unicast-flooding
    bridge-group 1 spanning-disabled
    interface GigabitEthernet0
    no ip address
    no ip route-cache
    duplex auto
    speed auto
    bridge-group 1
    no bridge-group 1 source-learning
    bridge-group 1 spanning-disabled
    interface BVI1
    ip address dhcp client-id GigabitEthernet0
    no ip route-cache
    ip http server
    no ip http secure-server
    ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
    ip radius source-interface BVI1
    logging history size 200
    no cdp run
    radius-server attribute 32 include-in-access-req format %h
    radius-server host 10.10.1.2 auth-port 1645 acct-port 1646 key 7 13011E13060D0A3E
    radius-server vsa send accounting
    bridge 1 route ip
    and the logs
    *Mar  1 00:00:06.207: %SOAP_FIPS-2-SELF_TEST_IOS_SUCCESS: IOS crypto FIPS self test passed
    *Mar  1 00:00:07.035: %SOAP_FIPS-2-SELF_TEST_RAD_SUCCESS: RADIO crypto FIPS self test passed on interface Dot11Radio 0
    *Mar  1 00:00:07.543: %SOAP_FIPS-2-SELF_TEST_RAD_SUCCESS: RADIO crypto FIPS self test passed on interface Dot11Radio 1
    *Mar  1 02:00:09.599 +0200: %SYS-6-CLOCKUPDATE: System clock has been updated from 00:00:09 UTC Fri Mar 1 2002 to 02:00:09 +0200 Fri Mar 1 2002, configured from console by console.
    *Mar  1 02:00:09.755 +0200: %LINK-3-UPDOWN: Interface GigabitEthernet0, changed state to up
    *Mar  1 02:00:09.763 +0200: %SYS-5-CONFIG_I: Configured from memory by console
    *Mar  1 02:00:09.767 +0200: %SYS-5-RESTART: System restarted --
    Cisco IOS Software, C1250 Software (C1250-K9W7-M), Version 12.4(10b)JDA3, RELEASE SOFTWARE (fc1)
    Technical Support: http://www.cisco.com/techsupport
    Copyright (c) 1986-2009 by Cisco Systems, Inc.
    Compiled Sun 07-Jun-09 03:50 by prod_rel_team
    *Mar  1 02:00:09.767 +0200: %SNMP-5-COLDSTART: SNMP agent on host ap is undergoing a cold start
    *Mar  1 20:39:11.027 +0200: %SSH-5-ENABLED: SSH 1.99 has been enabled
    *Mar  1 20:39:11.027 +0200: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, changed state to up
    *Mar  1 20:39:11.027 +0200: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0, changed state to up
    *Mar  1 20:39:11.531 +0200: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to reset
    *Mar  1 20:39:11.531 +0200: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
    *Mar  1 20:39:13.055 +0200: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio1, changed state to down
    *Mar  1 20:39:13.055 +0200: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
    *Mar  1 20:39:14.311 +0200: %CDP_PD-4-POWER_OK: Full power - AC_ADAPTOR inline power source
    *Mar  1 20:39:17.919 +0200: %DOT11-6-DFS_SCAN_START: DFS: Scanning frequency 5280 MHz for 60 seconds.
    *Mar  1 20:39:17.919 +0200: %DOT11-6-FREQ_USED: Interface Dot11Radio1, frequency 5280 selected
    *Mar  1 20:39:17.919 +0200: %DOT11-4-FREQ_CHANGED: Interface Dot11Radio1, channel or channel width changed: 40Mhz above not allowed on channel
    *Mar  1 20:39:17.923 +0200: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up
    *Mar  1 20:39:17.931 +0200: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up
    Apr  6 12:05:00.537 +0200: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio1, changed state to up
    Apr  6 12:05:00.537 +0200: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
    Apr  6 12:05:00.709 +0200: %DHCP-6-ADDRESS_ASSIGN: Interface BVI1 assigned DHCP address 10.10.1.243, mask 255.255.255.0, hostname ap
    Apr  6 12:05:32.729 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station PC186 5894.6b5d.6c00 Associated KEY_MGMT[WPAv2]
    Apr  6 12:05:34.325 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.3b1f Associated KEY_MGMT[WPAv2]
    Apr  6 12:05:34.481 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.305d Associated KEY_MGMT[WPAv2]
    Apr  6 12:05:35.117 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   0025.9cde.155a Associated KEY_MGMT[WPAv2]
    Apr  6 12:05:45.493 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station  687f.74fb.2fe0 Associated KEY_MGMT[WPAv2]
    Apr  6 12:05:59.545 +0200: %DOT11-6-DFS_SCAN_COMPLETE: DFS scan complete on frequency 5280 MHz
    Apr  6 12:06:06.561 +0200: %DOT11-6-ASSOC: Interface Dot11Radio1, Station  0025.9cf8.9149 Associated KEY_MGMT[WPAv2]
    Apr  6 12:06:56.471 +0200: %DOT11-6-ASSOC: Interface Dot11Radio1, Station   0025.9cde.0fc5 Associated KEY_MGMT[WPAv2]
    Apr  6 12:08:11.008 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 0025.9cde.155a Reason: Previous authentication no longer valid
    Apr  6 12:08:11.016 +0200: %DOT11-4-MAXRETRIES: Packet to client 0025.9cde.155a reached max retries, removing the client
    Apr  6 12:08:14.124 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   0025.9cde.155a Associated KEY_MGMT[WPAv2]
    Apr  6 12:08:17.608 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 0025.9cde.155a Reason: Previous authentication no longer valid
    Apr  6 12:08:48.950 +0200: %DOT11-7-AUTH_FAILED: Station 0025.9cde.155a Authentication failed
    Apr  6 12:08:48.950 +0200: %DOT11-4-MAXRETRIES: Packet to client 0025.9cde.155a reached max retries, removing the client
    Apr  6 12:09:12.978 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   0025.9cde.155a Associated KEY_MGMT[WPAv2]
    Apr  6 12:25:35.510 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.305d Reason: Sending station has left the BSS
    Apr  6 12:25:35.530 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.305d Associated KEY_MGMT[WPAv2-CP]
    Apr  6 12:35:32.229 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.3b1f Reason: Sending station has left the BSS
    Apr  6 12:35:32.245 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.3b1f Associated KEY_MGMT[WPAv2-CP]
    Apr  6 12:37:27.996 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.3b1f Reason: Sending station has left the BSS
    Apr  6 12:37:28.016 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.3b1f Associated KEY_MGMT[WPAv2-CP]
    Apr  6 12:54:07.729 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.2fe0 Reason: Previous authentication no longer valid
    Apr  6 12:54:09.457 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station  687f.74fb.2fe0 Associated KEY_MGMT[WPAv2]
    Apr  6 12:54:36.236 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.2fe0 Reason: Previous authentication no longer valid
    Apr  6 10:54:56.515: Client 687f.74fb.2fe0 failed: reached maximum retries
    Apr  6 12:55:37.141 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station  687f.74fb.2fe0 Associated KEY_MGMT[WPAv2]
    Apr  6 13:30:07.002 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 5894.6b5d.6c00 Reason: Sending station has left the BSS
    Apr  6 13:30:17.442 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.3b1f Reason: Sending station has left the BSS
    Apr  6 13:30:17.802 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.3b1f Associated KEY_MGMT[WPAv2-CP]
    Apr  6 13:34:59.087 +0200: %DOT11-4-MAXRETRIES: Packet to client 687f.74fb.3b1f reached max retries, removing the client
    Apr  6 13:34:59.087 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.3b1f Reason: Previous authentication no longer valid
    Apr  6 13:35:02.743 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.3b1f Associated KEY_MGMT[WPAv2]
    Apr  6 13:35:23.451 +0200: %DOT11-4-MAXRETRIES: Packet to client 687f.74fb.3b1f reached max retries, removing the client
    Apr  6 13:35:23.455 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.3b1f Reason: Previous authentication no longer valid
    Apr  6 13:35:26.743 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.3b1f Associated KEY_MGMT[WPAv2]
    Apr  6 13:36:40.768 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.3b1f Reason: Sending station has left the BSS
    Apr  6 13:38:59.004 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.3b1f Associated KEY_MGMT[WPAv2]
    Apr  6 13:40:56.655 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.3b1f Reason: Sending station has left the BSS
    Apr  6 13:40:56.703 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.3b1f Associated KEY_MGMT[WPAv2-CP]
    Apr  6 13:56:42.322 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating Station 0025.9cf8.9149 Reason: Previous authentication no longer valid
    Apr  6 13:56:45.490 +0200: %DOT11-6-ASSOC: Interface Dot11Radio1, Station  0025.9cf8.9149 Associated KEY_MGMT[WPAv2]
    Apr  6 13:56:49.302 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating Station 0025.9cf8.9149 Reason: Previous authentication no longer valid
    Apr  6 11:57:11.623: Client 0025.9cf8.9149 failed: reached maximum retries
    Apr  6 14:12:43.510 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.305d Reason: Sending station has left the BSS
    Apr  6 14:12:43.526 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.305d Associated KEY_MGMT[WPAv2-CP]
    Apr  6 14:49:12.472 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.305d Reason: Previous authentication no longer valid
    Apr  6 14:49:15.628 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.305d Associated KEY_MGMT[WPAv2]
    Apr  6 14:49:21.672 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.305d Reason: Previous authentication no longer valid
    Apr  6 14:49:53.282 +0200: %DOT11-7-AUTH_FAILED: Station 687f.74fb.305d Authentication failed
    Apr  6 14:49:53.282 +0200: %DOT11-4-MAXRETRIES: Packet to client 687f.74fb.305d reached max retries, removing the client
    Apr  6 14:52:04.097 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station PC186 5894.6b5d.6c00 Associated KEY_MGMT[WPAv2]
    Apr  6 15:14:29.682 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 0025.9cde.155a Reason: Previous authentication no longer valid
    Apr  6 15:15:03.124 +0200: %DOT11-7-AUTH_FAILED: Station 0025.9cde.155a Authentication failed
    Apr  6 15:15:03.124 +0200: %DOT11-4-MAXRETRIES: Packet to client 0025.9cde.155a reached max retries, removing the client
    Apr  6 15:21:02.660 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.3b1f Reason: Previous authentication no longer valid
    Apr  6 15:21:02.664 +0200: %DOT11-4-MAXRETRIES: Packet to client 687f.74fb.3b1f reached max retries, removing the client
    Apr  6 15:21:05.780 +0200: %DOT11-6-ASSOC: Interface Dot11Radio0, Station   687f.74fb.3b1f Associated KEY_MGMT[WPAv2]
    Apr  6 15:21:09.808 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 687f.74fb.3b1f Reason: Previous authentication no longer valid
    Apr  6 15:21:41.058 +0200: %DOT11-7-AUTH_FAILED: Station 687f.74fb.3b1f Authentication failed
    Apr  6 15:21:41.058 +0200: %DOT11-4-MAXRETRIES: Packet to client 687f.74fb.3b1f reached max retries, removing the client
    Apr  6 15:24:36.911 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating Station 0025.9cde.0fc5 Reason: Previous authentication no longer valid
    Apr  6 15:24:41.435 +0200: %DOT11-7-AUTH_FAILED: Station 0025.9cde.0fc5 Authentication failed
    Apr  6 15:24:45.131 +0200: %DOT11-6-ASSOC: Interface Dot11Radio1, Station   0025.9cde.0fc5 Associated KEY_MGMT[WPAv2]
    Apr  6 15:24:54.127 +0200: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating Station 0025.9cde.0fc5 Reason: Previous authentication no longer valid
    Apr  6 15:25:27.623 +0200: %DOT11-7-AUTH_FAILED: Station 0025.9cde.0fc5 Authentication failed
    Apr  6 15:25:27.623 +0200: %DOT11-4-MAXRETRIES: Packet to client 0025.9cde.0fc5 reached max retries, removing the client

    i found something about how to reach the maximum N speed
    Factors that Affect 802.11n Throughput
    There are circumstances where 802.11n devices cannot operate at their  maximum capable data rates. There are various reasons why this occurs.  This is the list of factors that affect 802.11n throughput:
    When 802.11n clients operate in a mixed environment with 802.11a or  802.11 b/g clients, 802.11n provides a protection mechanism to  interoperate with 802.11a or 802.11 b/g clients. This introduces an  overhead and reduces the throughput of 802.11n devices. Maximum  throughput is achieved in Greenfield mode where only 802.11n clients exist.
    Factors such as Channel width, Guard Interval and Reduced IFS (RIFS) play a major role in the bandwidth. Table 1 and Table 2 show how these factors affect the bandwidth.
    Clients ability to send a Block Ack instead of individual frame acknowledgements.
    MCS Index configured on the WLC.
    Proximity to AP—Clients closer to the AP experience higher data  rates. As clients move farther away from the AP, signal strength  reduces. As a result, data rate decreases steadily.
    RF environment—Amount of noise and interference in the environment.  The less the noise and interference, the greater the bandwidth.
    Encryption/ Decryption—Encryption in general reduces the throughput  due to the overhead involved in the data encryption/decryption process.  However, advanced encryption standards, such as AES, can provide better  throughput when compared to other encryption standards, such as TKIP and  WEP.
    Wired Network Infrastructure—Bandwidth of the wired infrastructure  determines the speed of the traffic to and from the wired network to the  wireless clients.
    If using an AP1250, change the AP to H-REAP mode for a 5-10% boost.
    If using an AP1140, keep the AP in local mode and enable TCP MSS on the controller. Use the config ap tcp-adjust-mss enable all 1363 command in order to enable it.
    Disable RRM scanning to prevent any throughput drops when going off channel. This can yield a 1-3% improvement.
    Disable RLDP to ensure the AP does not attempt to connect to rogue devices during testing.
    Use a Wireless Controller 5508 as the data plane is superior to the 4404-series.
    My questions are:
    1. How i can i put the access point to operate only in N mode (because all my clients are N)
    2.The guard interval can be modify ?
    3. How to put my AP in H-REAP (can i do this without WLC?)
    4. How to disable RRM
    5.How to disable RLDP.
    Thank you.

  • Mid 2010 MacBook Pro keeps rebooting (with crash logs)

    15 inch, Mid 2010
    2.66ghz i7
    8GB 1067 DDR3
    Intel HD Graphics 288MB
    OSX 10.9.2
    This has been happening for a few months now.  Sometimes it happens multiple times a day, sometimes a week or so can go by without a crash.  I've experienced 3 carashes in the past 3 days now. My guess, I don't really know how to read the logs below, is that there's a GPU issue. 
    panic(cpu 1 caller 0xffffff7f937f1fb0): "GPU Panic: [<None>] 5 3 7f 0 0 0 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff812608d000 0x0a5480a2, D0, P2/4\n"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-3.4.35/src/Apple MuxControl/kext/GPUPanic.cpp:127
    Backtrace (CPU 1), Frame : Return Address
    CRASH LOG ONE
    Anonymous UUID:       AC63B78D-8D7A-F89D-5B42-7C8A6D575F1D
    Fri Apr 18 14:23:23 2014
    panic(cpu 1 caller 0xffffff7f937f1fb0): "GPU Panic: [<None>] 5 3 7f 0 0 0 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff812608d000 0x0a5480a2, D0, P2/4\n"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-3.4.35/src/Apple MuxControl/kext/GPUPanic.cpp:127
    Backtrace (CPU 1), Frame : Return Address
    0xffffff810189b6b0 : 0xffffff8011422fa9
    0xffffff810189b730 : 0xffffff7f937f1fb0
    0xffffff810189b800 : 0xffffff7f91f13eab
    0xffffff810189b8c0 : 0xffffff7f91fdd49a
    0xffffff810189b900 : 0xffffff7f91fdd50a
    0xffffff810189b970 : 0xffffff7f9225c056
    0xffffff810189baa0 : 0xffffff7f92000b39
    0xffffff810189bac0 : 0xffffff7f91f1a8fd
    0xffffff810189bb70 : 0xffffff7f91f18408
    0xffffff810189bd70 : 0xffffff7f91f194a8
    0xffffff810189be50 : 0xffffff7f91ec626e
    0xffffff810189beb0 : 0xffffff7f937c466c
    0xffffff810189bf00 : 0xffffff7f937c355e
    0xffffff810189bf20 : 0xffffff801144a23a
    0xffffff810189bfb0 : 0xffffff80114d6ff7
          Kernel Extensions in backtrace:
             com.apple.driver.AppleMuxControl(3.4.35)[1BFF66C1-65E4-3BB3-9DEE-B61C3137019B]@ 0xffffff7f937e4000->0xffffff7f937f6fff
                dependency: com.apple.driver.AppleGraphicsControl(3.4.35)[09897896-ACBD-36B5-B1D4-0CCC4000E 3B3]@0xffffff7f937dc000
                dependency: com.apple.iokit.IOACPIFamily(1.4)[045D5D6F-AD1E-36DB-A249-A346E2B48E54]@0xfffff f7f91d7b000
                dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f91b0e000
                dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f91e71000
                dependency: com.apple.driver.AppleBacklightExpert(1.0.4)[E04639C5-D734-3AB3-A682-FE66694C66 53]@0xffffff7f937df000
             com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[80472F2E-D31D-32C4-88BA-2EB3D63 C159F]@0xffffff7f91ec4000->0xffffff7f9212cfff
                dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f91b0e000
                dependency: com.apple.iokit.IONDRVSupport(2.4.1)[999E29DA-D513-3544-89D1-9885B728A098]@0xff ffff7f91eb4000
                dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f91e71000
             com.apple.nvidia.classic.NVDANV50HalTesla(8.2.4)[B0E6AAA7-E970-3D81-8B43-145D56 A3A4AC]@0xffffff7f92137000->0xffffff7f923e0fff
                dependency: com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[80472F2E-D31D-32C4-88BA-2EB3D63 C159F]@0xffffff7f91ec4000
                dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f91b0e000
             com.apple.driver.AGPM(100.14.15)[BD884E30-94CF-3D5B-9A31-6C2F694CD5C4]@0xffffff 7f937c2000->0xffffff7f937d3fff
                dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f91b0e000
                dependency: com.apple.driver.IOPlatformPluginFamily(5.7.0d10)[E9B6DC11-10DB-31D7-885C-886E1 62FA857]@0xffffff7f928bc000
                dependency: com.apple.iokit.IONDRVSupport(2.4.1)[999E29DA-D513-3544-89D1-9885B728A098]@0xff ffff7f91eb4000
                dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f91e71000
                dependency: com.apple.AppleGraphicsDeviceControl(3.4.35)[E4C033B8-08F5-34D3-8720-C105D48F0B C4]@0xffffff7f937bc000
    BSD process name corresponding to current thread: kernel_task
    Mac OS version:
    13C64
    Kernel version:
    Darwin Kernel Version 13.1.0: Thu Jan 16 19:40:37 PST 2014; root:xnu-2422.90.20~2/RELEASE_X86_64
    Kernel UUID: 9FEA8EDC-B629-3ED2-A1A3-6521A1885953
    Kernel slide:     0x0000000011200000
    Kernel text base: 0xffffff8011400000
    System model name: MacBookPro6,2 (Mac-F22586C8)
    System uptime in nanoseconds: 12854775930195
    last loaded kext at 11594580702329: com.apple.driver.AppleIntelMCEReporter          104 (addr 0xffffff7f9396c000, size 49152)
    last unloaded kext at 11807382047912: com.apple.driver.AppleIntelMCEReporter          104 (addr 0xffffff7f9396c000, size 32768)
    loaded kexts:
    com.parallels.filesystems.prlufs          2010.12.28
    com.parallels.kext.vnic          9.0 24229.991745
    com.parallels.kext.netbridge          9.0 24229.991745
    com.parallels.kext.hidhook          9.0 24229.991745
    com.parallels.kext.hypervisor          9.0 24229.991745
    com.parallels.kext.usbconnect          9.0 24229.991745
    com.Cycling74.driver.Soundflower          101.6.7
    com.apple.filesystems.smbfs          2.0.1
    com.apple.driver.AppleHWSensor          1.9.5d0
    com.apple.driver.AGPM          100.14.15
    com.apple.filesystems.autofs          3.0
    com.apple.iokit.IOBluetoothSerialManager          4.2.3f10
    com.apple.driver.AppleMikeyHIDDriver          124
    com.apple.driver.AppleUpstreamUserClient          3.5.13
    com.apple.driver.AudioAUUC          1.60
    com.apple.GeForceTesla          8.2.4
    com.apple.driver.AppleHDA          2.6.0f1
    com.apple.driver.AppleMikeyDriver          2.6.0f1
    com.apple.iokit.IOUserEthernet          1.0.0d1
    com.apple.driver.AppleIntelHDGraphics          8.2.4
    com.apple.driver.AppleIntelHDGraphicsFB          8.2.4
    com.apple.Dont_Steal_Mac_OS_X          7.0.0
    com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
    com.apple.driver.AppleLPC          1.7.0
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.3f10
    com.apple.driver.AppleSMCLMU          2.0.4d1
    com.apple.driver.AppleHWAccess          1
    com.apple.driver.SMCMotionSensor          3.0.4d1
    com.apple.driver.AppleSMCPDRC          1.0.0
    com.apple.driver.AppleMuxControl          3.4.35
    com.apple.driver.AppleMCCSControl          1.1.12
    com.apple.driver.AppleUSBTCButtons          240.2
    com.apple.driver.AppleUSBTCKeyboard          240.2
    com.apple.driver.AppleUSBCardReader          3.4.1
    com.apple.driver.AppleIRController          325.7
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
    com.apple.BootCache          35
    com.apple.iokit.SCSITaskUserClient          3.6.6
    com.apple.driver.XsanFilter          404
    com.apple.iokit.IOAHCIBlockStorage          2.5.1
    com.apple.driver.AppleUSBHub          666.4.0
    com.apple.iokit.AppleBCM5701Ethernet          3.8.1b2
    com.apple.driver.AppleFWOHCI          4.9.9
    com.apple.driver.AirPort.Brcm4331          700.20.22
    com.apple.driver.AppleAHCIPort          3.0.0
    com.apple.driver.AppleUSBEHCI          660.4.0
    com.apple.driver.AppleSmartBatteryManager          161.0.0
    com.apple.driver.AppleACPIButtons          2.0
    com.apple.driver.AppleRTC          2.0
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleSMBIOS          2.1
    com.apple.driver.AppleACPIEC          2.0
    com.apple.driver.AppleAPIC          1.7
    com.apple.driver.AppleIntelCPUPowerManagementClient          216.0.0
    com.apple.nke.applicationfirewall          153
    com.apple.security.quarantine          3
    com.apple.driver.AppleIntelCPUPowerManagement          216.0.0
    com.apple.AppleGraphicsDeviceControl          3.4.35
    com.apple.kext.triggers          1.0
    com.apple.iokit.IOSerialFamily          10.0.7
    com.apple.nvidia.classic.NVDANV50HalTesla          8.2.4
    com.apple.nvidia.classic.NVDAResmanTesla          8.2.4
    com.apple.driver.DspFuncLib          2.6.0f1
    com.apple.vecLib.kext          1.0.0
    com.apple.iokit.IOAudioFamily          1.9.5fc2
    com.apple.kext.OSvKernDSPLib          1.14
    com.apple.iokit.IOSurface          91
    com.apple.iokit.IOBluetoothFamily          4.2.3f10
    com.apple.driver.AppleSMBusPCI          1.0.12d1
    com.apple.driver.IOPlatformPluginLegacy          1.0.0
    com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.3f10
    com.apple.iokit.IOFireWireIP          2.2.6
    com.apple.driver.AppleHDAController          2.6.0f1
    com.apple.iokit.IOHDAFamily          2.6.0f1
    com.apple.driver.AppleSMC          3.1.8
    com.apple.driver.IOPlatformPluginFamily          5.7.0d10
    com.apple.driver.AppleGraphicsControl          3.4.35
    com.apple.driver.AppleBacklightExpert          1.0.4
    com.apple.iokit.IONDRVSupport          2.4.1
    com.apple.driver.AppleSMBusController          1.0.11d1
    com.apple.iokit.IOGraphicsFamily          2.4.1
    com.apple.driver.AppleUSBMultitouch          240.9
    com.apple.iokit.IOSCSIBlockCommandsDevice          3.6.6
    com.apple.iokit.IOUSBMassStorageClass          3.6.0
    com.apple.iokit.IOUSBHIDDriver          660.4.0
    com.apple.driver.AppleUSBMergeNub          650.4.0
    com.apple.driver.AppleUSBComposite          656.4.1
    com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.6.6
    com.apple.iokit.IOBDStorageFamily          1.7
    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily          1.7.1
    com.apple.iokit.IOAHCISerialATAPI          2.6.1
    com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.6
    com.apple.iokit.IOUSBUserClient          660.4.2
    com.apple.iokit.IOEthernetAVBController          1.0.3b4
    com.apple.driver.mDNSOffloadUserClient          1.0.1b5
    com.apple.iokit.IOFireWireFamily          4.5.5
    com.apple.iokit.IO80211Family          630.35
    com.apple.iokit.IONetworkingFamily          3.2
    com.apple.iokit.IOAHCIFamily          2.6.5
    com.apple.iokit.IOUSBFamily          675.4.0
    com.apple.driver.AppleEFINVRAM          2.0
    com.apple.driver.AppleEFIRuntime          2.0
    com.apple.iokit.IOHIDFamily          2.0.0
    com.apple.iokit.IOSMBusFamily          1.1
    com.apple.security.sandbox          278.11
    com.apple.kext.AppleMatch          1.0.0d1
    com.apple.security.TMSafetyNet          7
    com.apple.driver.AppleKeyStore          2
    com.apple.driver.DiskImages          371.1
    com.apple.iokit.IOStorageFamily          1.9
    com.apple.iokit.IOReportFamily          23
    com.apple.driver.AppleFDEKeyStore          28.30
    com.apple.driver.AppleACPIPlatform          2.0
    com.apple.iokit.IOPCIFamily          2.9
    com.apple.iokit.IOACPIFamily          1.4
    com.apple.kec.pthread          1
    com.apple.kec.corecrypto          1.0
    CRASH LOG TWO
    Anonymous UUID:       AC63B78D-8D7A-F89D-5B42-7C8A6D575F1D
    Sat Apr 19 11:36:58 2014
    panic(cpu 3 caller 0xffffff7f839f1fb0): "GPU Panic: [<None>] 3 3 7f 0 0 0 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff8116315000 0x0a5480a2, D0, P3/4\n"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-3.4.35/src/Apple MuxControl/kext/GPUPanic.cpp:127
    Backtrace (CPU 3), Frame : Return Address
    0xffffff80f1c7b190 : 0xffffff8001622fa9
    0xffffff80f1c7b210 : 0xffffff7f839f1fb0
    0xffffff80f1c7b2e0 : 0xffffff7f82113eab
    0xffffff80f1c7b3a0 : 0xffffff7f821dd49a
    0xffffff80f1c7b3e0 : 0xffffff7f821dd50a
    0xffffff80f1c7b450 : 0xffffff7f8245c056
    0xffffff80f1c7b580 : 0xffffff7f82200b39
    0xffffff80f1c7b5a0 : 0xffffff7f8211a8fd
    0xffffff80f1c7b650 : 0xffffff7f82118408
    0xffffff80f1c7b850 : 0xffffff7f82119d57
    0xffffff80f1c7b920 : 0xffffff7f83078e54
    0xffffff80f1c7ba40 : 0xffffff7f830780cd
    0xffffff80f1c7ba70 : 0xffffff7f8306fe19
    0xffffff80f1c7bac0 : 0xffffff7f8306b581
    0xffffff80f1c7baf0 : 0xffffff7f83066378
    0xffffff80f1c7bb20 : 0xffffff7f8304ec84
    0xffffff80f1c7bb70 : 0xffffff8001acd26a
    0xffffff80f1c7bb90 : 0xffffff8001acddce
    0xffffff80f1c7bbf0 : 0xffffff8001acb81f
    0xffffff80f1c7bd40 : 0xffffff80016b6558
    0xffffff80f1c7be50 : 0xffffff8001626bf1
    0xffffff80f1c7be80 : 0xffffff80016139f5
    0xffffff80f1c7bef0 : 0xffffff800161e043
    0xffffff80f1c7bf70 : 0xffffff80016c976d
    0xffffff80f1c7bfb0 : 0xffffff80016f3b46
          Kernel Extensions in backtrace:
             com.apple.driver.AppleMuxControl(3.4.35)[1BFF66C1-65E4-3BB3-9DEE-B61C3137019B]@ 0xffffff7f839e4000->0xffffff7f839f6fff
                dependency: com.apple.driver.AppleGraphicsControl(3.4.35)[09897896-ACBD-36B5-B1D4-0CCC4000E 3B3]@0xffffff7f839dc000
                dependency: com.apple.iokit.IOACPIFamily(1.4)[045D5D6F-AD1E-36DB-A249-A346E2B48E54]@0xfffff f7f81f7b000
                dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f81d0e000
                dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f82071000
                dependency: com.apple.driver.AppleBacklightExpert(1.0.4)[E04639C5-D734-3AB3-A682-FE66694C66 53]@0xffffff7f839df000
             com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[80472F2E-D31D-32C4-88BA-2EB3D63 C159F]@0xffffff7f820c4000->0xffffff7f8232cfff
                dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f81d0e000
                dependency: com.apple.iokit.IONDRVSupport(2.4.1)[999E29DA-D513-3544-89D1-9885B728A098]@0xff ffff7f820b4000
                dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f82071000
             com.apple.nvidia.classic.NVDANV50HalTesla(8.2.4)[B0E6AAA7-E970-3D81-8B43-145D56 A3A4AC]@0xffffff7f82337000->0xffffff7f825e0fff
                dependency: com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[80472F2E-D31D-32C4-88BA-2EB3D63 C159F]@0xffffff7f820c4000
                dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f81d0e000
             com.apple.GeForceTesla(8.2.4)[B6C71E9A-E304-354B-80AD-C69C9032D367]@0xffffff7f8 3014000->0xffffff7f830defff
                dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f81d0e000
                dependency: com.apple.iokit.IONDRVSupport(2.4.1)[999E29DA-D513-3544-89D1-9885B728A098]@0xff ffff7f820b4000
                dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f82071000
                dependency: com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[80472F2E-D31D-32C4-88BA-2EB3D63 C159F]@0xffffff7f820c4000
    BSD process name corresponding to current thread: WindowServer
    Mac OS version:
    13C64
    Kernel version:
    Darwin Kernel Version 13.1.0: Thu Jan 16 19:40:37 PST 2014; root:xnu-2422.90.20~2/RELEASE_X86_64
    Kernel UUID: 9FEA8EDC-B629-3ED2-A1A3-6521A1885953
    Kernel slide:     0x0000000001400000
    Kernel text base: 0xffffff8001600000
    System model name: MacBookPro6,2 (Mac-F22586C8)
    System uptime in nanoseconds: 7770230906017
    last loaded kext at 6662628611280: com.apple.driver.AppleIntelMCEReporter          104 (addr 0xffffff7f83af4000, size 49152)
    last unloaded kext at 6774613998621: com.apple.driver.AppleIntelMCEReporter          104 (addr 0xffffff7f83af4000, size 32768)
    loaded kexts:
    com.Cycling74.driver.Soundflower          101.6.7
    com.apple.driver.AppleHWSensor          1.9.5d0
    com.apple.driver.AGPM          100.14.15
    com.apple.filesystems.autofs          3.0
    com.apple.iokit.IOBluetoothSerialManager          4.2.3f10
    com.apple.driver.AppleMikeyHIDDriver          124
    com.apple.driver.AppleMikeyDriver          2.6.0f1
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    com.apple.driver.AppleHDA          2.6.0f1
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    com.apple.driver.AppleSMCLMU          2.0.4d1
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    com.apple.driver.AppleLPC          1.7.0
    com.apple.driver.AppleIntelHDGraphicsFB          8.2.4
    com.apple.driver.AppleMCCSControl          1.1.12
    com.apple.driver.AppleSMCPDRC          1.0.0
    com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
    com.apple.driver.SMCMotionSensor          3.0.4d1
    com.apple.driver.AppleUSBTCButtons          240.2
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
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    com.apple.driver.AppleUSBCardReader          3.4.1
    com.apple.driver.AppleIRController          325.7
    com.apple.driver.AppleUSBTCKeyboard          240.2
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    com.apple.driver.AppleFWOHCI          4.9.9
    com.apple.driver.AppleAHCIPort          3.0.0
    com.apple.driver.AppleUSBEHCI          660.4.0
    com.apple.driver.AppleSmartBatteryManager          161.0.0
    com.apple.driver.AppleACPIButtons          2.0
    com.apple.driver.AppleRTC          2.0
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleSMBIOS          2.1
    com.apple.driver.AppleACPIEC          2.0
    com.apple.driver.AppleAPIC          1.7
    com.apple.driver.AppleIntelCPUPowerManagementClient          216.0.0
    com.apple.nke.applicationfirewall          153
    com.apple.security.quarantine          3
    com.apple.driver.AppleIntelCPUPowerManagement          216.0.0
    com.apple.AppleGraphicsDeviceControl          3.4.35
    com.apple.kext.triggers          1.0
    com.apple.iokit.IOSerialFamily          10.0.7
    com.apple.driver.DspFuncLib          2.6.0f1
    com.apple.vecLib.kext          1.0.0
    com.apple.iokit.IOAudioFamily          1.9.5fc2
    com.apple.kext.OSvKernDSPLib          1.14
    com.apple.iokit.IOSurface          91
    com.apple.nvidia.classic.NVDANV50HalTesla          8.2.4
    com.apple.nvidia.classic.NVDAResmanTesla          8.2.4
    com.apple.iokit.IOBluetoothFamily          4.2.3f10
    com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.3f10
    com.apple.driver.AppleHDAController          2.6.0f1
    com.apple.iokit.IOHDAFamily          2.6.0f1
    com.apple.driver.AppleGraphicsControl          3.4.35
    com.apple.driver.AppleSMBusPCI          1.0.12d1
    com.apple.driver.AppleBacklightExpert          1.0.4
    com.apple.iokit.IONDRVSupport          2.4.1
    com.apple.driver.AppleSMBusController          1.0.11d1
    com.apple.iokit.IOGraphicsFamily          2.4.1
    com.apple.iokit.IOFireWireIP          2.2.6
    com.apple.driver.IOPlatformPluginLegacy          1.0.0
    com.apple.driver.IOPlatformPluginFamily          5.7.0d10
    com.apple.driver.AppleSMC          3.1.8
    com.apple.iokit.IOSCSIBlockCommandsDevice          3.6.6
    com.apple.iokit.IOUSBMassStorageClass          3.6.0
    com.apple.driver.AppleUSBMultitouch          240.9
    com.apple.iokit.IOUSBHIDDriver          660.4.0
    com.apple.driver.AppleUSBMergeNub          650.4.0
    com.apple.driver.AppleUSBComposite          656.4.1
    com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.6.6
    com.apple.iokit.IOBDStorageFamily          1.7
    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily          1.7.1
    com.apple.iokit.IOAHCISerialATAPI          2.6.1
    com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.6
    com.apple.iokit.IOEthernetAVBController          1.0.3b4
    com.apple.driver.mDNSOffloadUserClient          1.0.1b5
    com.apple.iokit.IO80211Family          630.35
    com.apple.iokit.IONetworkingFamily          3.2
    com.apple.iokit.IOUSBUserClient          660.4.2
    com.apple.iokit.IOFireWireFamily          4.5.5
    com.apple.iokit.IOAHCIFamily          2.6.5
    com.apple.iokit.IOUSBFamily          675.4.0
    com.apple.driver.AppleEFINVRAM          2.0
    com.apple.driver.AppleEFIRuntime          2.0
    com.apple.iokit.IOHIDFamily          2.0.0
    com.apple.iokit.IOSMBusFamily          1.1
    com.apple.security.sandbox          278.11
    com.apple.kext.AppleMatch          1.0.0d1
    com.apple.security.TMSafetyNet          7
    com.apple.driver.AppleKeyStore          2
    com.apple.driver.DiskImages          371.1
    com.apple.iokit.IOStorageFamily          1.9
    com.apple.iokit.IOReportFamily          23
    com.apple.driver.AppleFDEKeyStore          28.30
    com.apple.driver.AppleACPIPlatform          2.0
    com.apple.iokit.IOPCIFamily          2.9
    com.apple.iokit.IOACPIFamily          1.4
    com.apple.kec.pthread          1
    com.apple.kec.corecrypto          1.0

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    This was just posted this week. You might want to check it out. I can't vouch for it, but it may be a way to solve the problem. Please post back if you try this and it works.
    https://discussions.apple.com/message/25500202?ac_cid=tw123456#25500202

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