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Kernel Panics occurring with no apparent pattern in Mountain Lion X

721 Views 15 Replies Latest reply: Nov 26, 2012 12:12 AM by Dutch Herbie RSS
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Dutch Herbie Calculating status...
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Nov 22, 2012 9:01 AM



Last week, I have upgraded my OS from Snow Leopard to Mountain Lion. Since then I have repeatedly suffered kernel panic crashes, once, twice or three times a day, whilst working in any of the following applications: Final Cut Pro 7 (in a separate folder in Application), Final Cut Pro X, Compressor 3 (again in a separate folder in Applications) and 4. I usually have more than one application open at the time, such as Photoshop and After Effects CS5.5 in the background, though idle at the time of these crashes, and Safari and Mail. I note that I also have Automap installed which application insists on launching (and remaining "alive") even though I have not launched either Garageband or Logic. (See thread


Anyway, my diagnostics and counter measures have included, more or less in the order listed:

- verifying and repairing disk permissions;

- veryfing the disk (from the recovery disk after a restart cmd+R);

- performing a MemTest;

- clean re-install of OSX Mountain Lion (again from the recovery disk);

- zapping PRam (restart cmd+alt+p+r, about six chimes);

- removing varoious login items (including Transmit, LaCie, Livescribe and Bamboo items);


Still the kernel panics persisted. They often seem to occur at drag (and drop) actions between application or finder windows. However, they have also occurred just like that, during an export of video from FCP7 or a finder copy action without any mouse or keyboard input.


In the end, I have completely restored a system from the Time Machine from a week earlier. This probably means that the login items are back as is the original Mountain Lion installation.


So, today the iMac crashed again. I will paste the panic report below.


I hope all this makes sense. Please forgive me, I am an experienced Mac user but I do not have a technical background in IT, nor an aptitude for it.


Does anybody have an idea to what the problem might be and what I should possibly do to correct it? I appreciate any reader for spending their time.


So thank you.


Best Regards, Huib J. Lirb

(Amsterdam, The Netherlands)


Interval Since Last Panic Report:  147319 sec

Panics Since Last Report:          1

Anonymous UUID:                    9A519CE5-AF28-B5B3-C8DE-557091EE8191



Thu Nov 22 17:18:20 2012

panic(cpu 0 caller 0xffffff8007cb7bd5): Kernel trap at 0xffffff8007c876fc, type 13=general protection, registers:

CR0: 0x0000000080010033, CR2: 0x00000000000ee000, CR3: 0x0000000027d43066, CR4: 0x00000000000606e0

RAX: 0x0000000000000001, RBX: 0x0020000000000000, RCX: 0xffffff8029990aa0, RDX: 0x0000000000000821

RSP: 0xffffff81da1e34e0, RBP: 0xffffff81da1e3500, RSI: 0x00000000283baec0, RDI: 0xffffff800d52d670

R8:  0x0000000000000001, R9:  0x0000000000000000, R10: 0x0000000000100211, R11: 0x00000000000d9530

R12: 0xffffff800d52d670, R13: 0xffffff803daea690, R14: 0xffffff803daea680, R15: 0x000000029de43000

RFL: 0x0000000000010206, RIP: 0xffffff8007c876fc, CS:  0x0000000000000008, SS:  0x0000000000000010

Fault CR2: 0x00000000000ee000, Error code: 0x0000000000000000, Fault CPU: 0x0



Backtrace (CPU 0), Frame : Return Address

0xffffff81da1e3180 : 0xffffff8007c1d626

0xffffff81da1e31f0 : 0xffffff8007cb7bd5

0xffffff81da1e33c0 : 0xffffff8007cce4ed

0xffffff81da1e33e0 : 0xffffff8007c876fc

0xffffff81da1e3500 : 0xffffff8007c7fe7a

0xffffff81da1e3820 : 0xffffff8007f86582

0xffffff81da1e3850 : 0xffffff8007ce51ac

0xffffff81da1e39e0 : 0xffffff8007ce337e

0xffffff81da1e3c40 : 0xffffff8007ce2ff5

0xffffff81da1e3c70 : 0xffffff8007efb26d

0xffffff81da1e3d80 : 0xffffff8007d11da2

0xffffff81da1e3de0 : 0xffffff8007d08179

0xffffff81da1e3e50 : 0xffffff8007f770e9

0xffffff81da1e3f00 : 0xffffff8007f772e4

0xffffff81da1e3f60 : 0xffffff8007fe1533

0xffffff81da1e3fb0 : 0xffffff8007ccea1d



BSD process name corresponding to current thread: Final Cut Pro



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:     0x0000000007a00000

Kernel text base: 0xffffff8007c00000

System model name: iMac12,2 (Mac-942B59F58194171B)



System uptime in nanoseconds: 28899935466729

last loaded kext at 18382454574038: com.sophos.kext.sav          8.0.4 (addr 0xffffff7f89f2a000, size 24576)

last unloaded kext at 18378289955248: com.sophos.kext.sav          8.0.4 (addr 0xffffff7f89f09000, size 20480)

loaded kexts:

com.sophos.kext.sav          8.0.4          3.1.0          1.60          1.9.5d0          4.0.9f33          122          100.12.69          2.3.1f2          3.0          2.0.2d0          1.0.0d1          7.0.0          3.2.11          1.0.0          1.0.0          4.0.9f33          3.5.10          8.0.0          2.3.1f2          1.6.0          170.2.3          1.0.33          1.0.0          8.0.0          8.0.0          320.15          3.5.1          3.1.0          404          2.2.2          1.0.0d1          1.0.0d1          34          5.2.5          600.70.23          4.9.6          3.2.5b3          2.4.1          5.4.0          1.6.1          1.6          1.5          1.7          1.9          1.6          1.6          196.0.0          4.0.39          2          196.0.0          2.1.1          4.2.0          10.0.6          2.3.1f2          1.8.9fc10          1.6          1.0          86.0.3          4.0.9f33          3.2.11          2.2.5          3.1.4d2          1.0.0          4.0.9f33          1.0.10d0          2.3.1f2          2.3.1f2          5.2.0d16          1.0.4          1.0.10d0          19.0.26          8.0.0          8.0.0          2.3.5          1.1.8          1.1.8          2.3.5          165.5          165.5          1.8.5          1.8.5          1.8.5          1.2.5          3.5.1          1.7          1.7.1          1.7.1          5.2.5          2.5.0          3.5.1          3.5.0          3.5.1          5.2.5          5.2.5          1.6.0          2.1.1          5.2.5          500.15          4.5.5          1.0.2b1          3.0          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: iMac12,2, BootROM IM121.0047.B1F, 4 processors, Intel Core i5, 2.7 GHz, 16 GB, SMC 1.72f1

Graphics: AMD Radeon HD 6770M, AMD Radeon HD 6770M, PCIe, 512 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x830B, 0x4D3253344736344342384842354E2D434720

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x830B, 0x4D3253344736344342384842354E2D434720

Memory Module: BANK 0/DIMM1, 4 GB, DDR3, 1333 MHz, 0x0000, 0x563031443353463447423236383236383133

Memory Module: BANK 1/DIMM1, 4 GB, DDR3, 1333 MHz, 0x0000, 0x563031443353463447423236383236383133

AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380:

Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 0 incoming serial ports

Network Service: AirPort, AirPort, en1

Serial ATA Device: ST31000528AS, 1 TB

Serial ATA Device: OPTIARC DVD RW AD-5690H

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

USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfd130000 / 5

USB Device: USB Optical Mouse, 0x046d  (Logitech Inc.), 0xc06c, 0xfd133000 / 7

USB Device: Apple Keyboard, apple_vendor_id, 0x0221, 0xfd132000 / 6

USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfd110000 / 4

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 3

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

USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0xfa110000 / 4

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 5

USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x850b, 0xfa200000 / 2

FireWire Device: OEM ATA Device 00, G-TECH, 800mbit_speed

iMac (27-inch Mid 2011), OS X Mountain Lion (10.8.2)
  • mende1 Level 10 Level 10 (89,470 points)

    It crashes loading Sophos Antivirus. Update it to the latest version or uninstall it because you don't need an antivirus, or download ClamXav >

  • thomas_r. Level 7 Level 7 (26,930 points)

    I am actually running the same version of Sophos that you had installed with no problems. I think the fact that it crashed while loading the Sophos kernel extension was probably not the fault of that kernel extension. However, you've got no other third-party kernel extensions installed, so at this point, the problem is probably caused either by a badly corrupt system or a hardware issue. You should probably run Apple Hardware Test, though be aware that it cannot catch all possible hardware issues, so a "pass" doesn't necessarily mean you don't have a hardware issue.

  • thomas_r. Level 7 Level 7 (26,930 points)

    Some machines were issues firmware updates that retroactively enabled internet recovery. However, that's not relevant to Apple Hardware Test. A machine that shipped with 10.6 or earlier, and had physical discs in the box, MUST use the appropriate disc for AHT, since the AHT system must be specific to the hardware.

  • etresoft Level 7 Level 7 (23,880 points)

    It is panicking in the MS-DOS filesystem driver. Perhaps your SanDisk USB flash drive is bad.

  • thomas_r. Level 7 Level 7 (26,930 points)

    Thank you, but does this mean that there may be some other action that I should perform instead of (or in addition to) having the memory slots checked?


    Since AHT gave you positive results indicating that you have a hardware problem, that definitely needs to be addressed.

  • MadMacs0 Level 4 Level 4 (3,320 points)

    Dutch Herbie wrote:


    I have removed two modules of memory and ran te AHT again. This time, the machine passed. I will order replacement modules from Apple soon.

    It would be unusual for two modules to go out at the same time, but if you're Mac needs matched pairs then it would probably be best to replace both at the same time, although it isn't required.


    Apple probably doesn't have a lifetime guarantee on it's memory, but most third parties do and it will be much cheaper than what Apple will sell you.

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