Previous 1 2 Next 18 Replies Latest reply: Dec 19, 2012 1:20 PM by ObliTech
jimmyluck Level 1 (0 points)

Started a week ago, about a handfull of times so far.

Late 2011 17" MBP, 2.5GHz Intel Core i7, 4GB Ram, Mountain Lion 10.8.2



Crash Report:


Interval Since Last Panic Report:  70935 sec

Panics Since Last Report:          1

Anonymous UUID:                    81E02AA6-19CE-479B-2D68-B5835AE12103


Tue Nov 27 21:38:02 2012

panic(cpu 0 caller 0xffffff8024eb7bd5): Kernel trap at 0x0000000000000000, type 14=page fault, registers:

CR0: 0x0000000080010033, CR2: 0x0000000000000000, CR3: 0x000000003c369029, CR4: 0x00000000000606e0

RAX: 0xffffff80312bb100, RBX: 0xffffff8033d77f80, RCX: 0xffffff7fa561f830, RDX: 0x0000000000002801

RSP: 0xffffff80a468bd78, RBP: 0xffffff80a468bda0, RSI: 0xffffff80902de000, RDI: 0xffffff8033d77f80

R8:  0x0000000000000284, R9:  0x0000000000000000, R10: 0xffffff80311af540, R11: 0x000000000000023e

R12: 0xffffff80334c59c0, R13: 0x0000000000000000, R14: 0xffffff80a468bdb0, R15: 0xffffff80252322a0

RFL: 0x0000000000010282, RIP: 0x0000000000000000, CS:  0x0000000000000008, SS:  0x0000000000000010

Fault CR2: 0x0000000000000000, Error code: 0x0000000000000010, Fault CPU: 0x0


Backtrace (CPU 0), Frame : Return Address

0xffffff80a468ba10 : 0xffffff8024e1d626

0xffffff80a468ba80 : 0xffffff8024eb7bd5

0xffffff80a468bc50 : 0xffffff8024ece4ed

0xffffff80a468bc70 : 0x0

0xffffff80a468bda0 : 0xffffff802522d6af

0xffffff80a468be00 : 0xffffff80252329e4

0xffffff80a468be20 : 0xffffff8025262a91

0xffffff80a468be50 : 0xffffff8024e9382c

0xffffff80a468be80 : 0xffffff8024e20aed

0xffffff80a468beb0 : 0xffffff8024e10448

0xffffff80a468bf00 : 0xffffff8024e1961b

0xffffff80a468bf70 : 0xffffff8024ea5b16

0xffffff80a468bfb0 : 0xffffff8024eced53


BSD process name corresponding to current thread: blued


Mac OS version:



Kernel version:

Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64

Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333

Kernel slide:     0x0000000024c00000

Kernel text base: 0xffffff8024e00000

System model name: MacBookPro8,3 (Mac-942459F5819B171B)


System uptime in nanoseconds: 35943063334806

last loaded kext at 31253886844906:          2.9.0f6 (addr 0xffffff7fa7216000, size 262144)

last unloaded kext at 33792681393264:          2.9.0f6 (addr 0xffffff7fa7216000, size 262144)

loaded kexts:

com.AmbrosiaSW.AudioSupport          4.1.2

com.Logitech.Control Center.HID Driver          3.6.0          1.9.5d0          3.0          4.0.9f33          1.60          100.12.69          122          353          2.3.1f2          4.0.9f33          1.0.0d1          8.0.0          3.0.2d6          3.5.10          2.3.1f2          2.0.2d0          1.0.33          8.0.0          7.0.0          1.6.0          3.2.11          1.0.0          3.2.11          1.0.0          8.0.0          1.0.0          235.4          235.4          320.15          3.1.0          1.0.0d1          1.0.0d1          34          3.5.1          404          2.2.2          5.2.5          3.2.5b3          602.15.22          4.9.6          2.4.1          5.4.0          1.6.1          161.0.0          1.6          1.5          1.7          1.9          1.6          1.6          196.0.0          4.0.39          2          196.0.0          1.0          10.0.6          2.3.1f2          4.0.9f33          86.0.3          1.8.9fc10          1.6          1.0.4          1.0.10d0          1.0.10d0          1.0.0          3.2.11          5.2.0d16          3.1.4d2          2.3.1f2          2.3.1f2          19.0.26          2.3.5          8.0.0          8.0.0          2.3.5          2.2.5          165.5          165.5          235.7          1.8.5          1.8.5          1.2.5          4.0.9f33          4.0.9f33          5.2.5          3.5.1          2.1.1          4.2.0          5.2.5          5.2.5          3.5.1          1.7          1.7.1          1.7.1          2.5.0          3.5.1          1.6.0          2.1.1          5.2.5          1.0.2b1          500.15          3.0          4.5.5          2.2.1          5.4.0          1.6.1          1.8.0          1.1          220          1.0.0d1          7          344          1.8          28.21          1.6          2.7.2          1.4          1.0

Model: MacBookPro8,3, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2.5 GHz, 4 GB, SMC 1.70f5

Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 384 MB

Graphics: AMD Radeon HD 6770M, AMD Radeon HD 6770M, PCIe, 1024 MB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (

Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 1 incoming serial ports

Network Service: Ethernet, Ethernet, en0

Serial ATA Device: Hitachi HTS727575A9E362, 750.16 GB

Serial ATA Device: MATSHITADVD-R   UJ-8A8

USB Device: hub_device, 0x0424  (SMSC), 0x2514, 0xfa100000 / 3

USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0252, 0xfa120000 / 5

USB Device: BRCM2070 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0xfa110000 / 4

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 7

USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 2

USB Device: hub_device, 0x0424  (SMSC), 0x2514, 0xfd100000 / 2

USB Device: hub_device, apple_vendor_id, 0x911c, 0xfd130000 / 4

USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfd133000 / 6

USB Device: Apple Keyboard, apple_vendor_id, 0x024f, 0xfd133200 / 7

USB Device: Apple Cinema HD Display, apple_vendor_id, 0x921c, 0xfd132000 / 5

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd110000 / 3

FireWire Device: OEM ATA Device 00, Other World Computing, 800mbit_speed

MacBook Pro, OS X Mountain Lion (10.8.2), Late 2011, 2.5GHz Intel Core i7
  • clintonfrombirmingham Level 7 (29,995 points)

    Did you install any new RAM in your computer lately?



  • jimmyluck Level 1 (0 points)

    No, still the same stock 4GB



  • clintonfrombirmingham Level 7 (29,995 points)

    First, run the Apple Hardware Test - if you have any errors, be sure to note them.


    If the hardware test passes with no errors, hold down the Shift key and boot into Safe Mode - this will disable the non-Apple kexts.


    Call back...



  • jimmyluck Level 1 (0 points)

    I successfully ran Apple Hardware Test and performed the Regular Test & the Extended Test, both reported No Trouble Found.


    I then Shut Down and successfully restarted into Safe Boot mode. After a little while I shut down and restarted normally.


    I should add, before I performed Apple Hardware Test and Safe Boot, I updated Ambrosia's Snapz Pro X from v2.5.0 to 2.5.1.



  • clintonfrombirmingham Level 7 (29,995 points)

    I was going to ask about the Snapz Pro kext - I've been running the beta for months now until they finally released 2.5.1 - and I've not had any trouble with it. See if that makes a difference.



  • ObliTech Level 1 (0 points)

    The kernel panics are caused by the switching between / to the AMD Radeon HD 6770M and the Intel HD Graphics 3000...


    The first clue was that when logged out (timed) the graphics shown was the screensaver display dump and I had to move the cursor around to repaint the real screen info to see the user / password info to be able to log in again...

    Then as the kernel panics occured I observed that most of them was in situations where there could be switching between the AMD Radeon HD 6770M and the Intel HD Graphics 3000...

    The crash logs (many as there was many kernel panics) did not point to the graphics so that was of little help.


    Re-installing to a new SSD, new RAM, disabling BluTooth etc., resetting NVRAM, running HWTESTS, verifying that the EFI and all other was up to date - the kernel panics was even worse... When booting after running HWTESTS I even got a kernel panic when booting..


    I then disabled the Intel HD Graphics 3000 and have not had a single kernel panic / restart after that.

  • etresoft Level 7 (27,410 points)

    jimmyluck wrote:


    last loaded kext at 31253886844906:          2.9.0f6 (addr 0xffffff7fa7216000, size 262144)

    last unloaded kext at 33792681393264:          2.9.0f6 (addr 0xffffff7fa7216000, size 262144)

    loaded kexts:

    com.AmbrosiaSW.AudioSupport          4.1.2

    com.Logitech.Control Center.HID Driver          3.6.0

    Seems pretty obvious. Remove these 3rd party kernel extensions. Make sure to use the offical uninstallers.

  • clintonfrombirmingham Level 7 (29,995 points)

    Actually, the Ambrosia kext (for Snapz Pro X) is the newest version and I'm not having any problems with it...



  • etresoft Level 7 (27,410 points)

    The original poster is having problems with it. And are you using it with the Logitech driver? Kernel extensions don't follow the expected rules for software. One running application should affect any other. Kernel extensions can and do interfere with each other. They are all part of the same processs.

  • ObliTech Level 1 (0 points)

    I have investigated why my late 2011 17" MBP, 2.4GHz Intel Core i7, 4 or 16GB RAM, Mountain Lion 10.8.2, 750GB original HDD or 240GB SSD have been having the kernel panics.


    I now know a lot more to the why, but not much more how to cure it properly...

    I expect this problem are related to several MacBook Pro models as my findings indicate it to be a combination problem of SMC function and not optimal drivers and apps..


    The short version are that the SMC are way to slow to increace the fan speed when the CPU get loaded, and the CPU temperature reaches over 90 degree Celsius (in seconds) before the fans have been able to become effective - they are just slowly starting to increase the speed when the MacBook Pro restarts due to overtemperature.

    And that the SMC reduces fan speed or turns off the fans in several circumstances.

    This last issue I have not investigated properly - I just disabled the Intel graphics (to lower CPU temperature and prevent temperature rise when switching to the Intel graphics), disabled the screensaver and automatic logout as these circumstances was causing problems.

    I could not find any references to high temperature in the logs..


    When the MacBook Pro reboots after a kernel panic the temperature are close to the dangerous area and the SMC have turned the fans off and it takes to long time to increase the speed again.


    If the CPU usage during the boot are not to heavy the MacBook Pro may survive and run til the next time an application start using high CPU and the temperature again causes a kernel panic.


    If the reboot process causes heavy CPU usage the temperature will reach the limit in seconds and a new kernel panic and reboot follows as the SMC starts the fans at the lowest speed and are not able to control the temperature in time.


    Due to QTKitserver (QuickTime player) caused 117% CPU usage (observed even two processes giving a total of 234%) during boot after a kernel panic when playing the MacBook Pro went into a continious kernel panic / reboot loop. After that I removed the QuickTime player completely from the system...


    I now also uses the scmFanControl app and have set the lowest fan speed to 2700 rpm - the smcFanControl app do allow SMC to control the fans normally, but I can change the fan speed to 4000 and 6200 rpm very fast.



    Without QuickTime player and with the scmFanControl my MacBook Pro CPU now idles at 40 degree Celsius and the CPU load are below 1% (Total) when writing here, reading/writing emails, browsing websites without Flash etc.

    Websites with Flash causes at least one CPU core to run at 50%..

    When running applications that uses high CPU I must still increase the CPU fans manually to avoid kernel panics as SMC are ramping up the fan speed to slow.


    The good news (for me) are that I now can use the MacBook Pro nearly normally again.


    I hope a revised SMC algorithm will be presented soon, and that the kernel panic logs will updated with temperature information so all kernel panics caused by this can be easilly identified...

  • etresoft Level 7 (27,410 points)

    A better idea would be to take it in to Apple and have it fixed.

  • ObliTech Level 1 (0 points)

    etresoft wrote:


    A better idea would be to take it in to Apple and have it fixed.


    Maybe at a later point of time if not any fixes becomes available for download..


    I have now stess tested the setup (with QuickTime player removed and the scmFanControl running).


    Strangely enough the CPU usage are now overall reduced by a huge factor.


    I started one Virtual Lion session, one Virtual Mountain Lion session, one Virtual Linux ubuntu session and one Virtual Windows XP session..

    With all of them idling (including the Mountain Lion base system) the total CPU load are 5% and CPU temperature 50 degree Celsius. Running an autoruter (a huge PCB layout) in the Windows XP session increases the total CPU load to 15% and CPU temperature to 65 degrees Celsius..


    Previously this would have caused problems after a short time due to high CPU usage and high temperature.

    And everything now loads faster including Windows apps.. It feels like the MacBook Pro have become 3 - 4 times faster and uses 1/4 of the CPU resources to do it...


    So I am in no hurry for any hardware service.

  • etresoft Level 7 (27,410 points)

    ObliTech wrote:


    etresoft wrote:


    A better idea would be to take it in to Apple and have it fixed.


    Maybe at a later point of time if not any fixes becomes available for download..




    So I am in no hurry for any hardware service.

    Good point. It is better to let your warranty expire before getting it serviced. The $600 you spend for a new logic board will contribute to a robust economic recovery in the new year.

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