MacBook Air kernel panic!

Discussion in 'MacBook Air' started by halloween38, Oct 30, 2012.

  1. halloween38 macrumors newbie

    Oct 30, 2012
    What should I do? I just got my new MBA, and it's the fourth time, when I got a kernel panic. It happends when I don't use my computer for a while, suddenly, when I try to put it back on it shows me "Your computer had to reboot" or something like that. Here's the log, HELP ME! :confused::confused:

    panic(cpu 2 caller 0xffffff80002c4794): Kernel trap at 0xffffff7f816661f1, type 13=general protection, registers:
    CR0: 0x000000008001003b, CR2: 0x000000010055700c, CR3: 0x0000000000100000, CR4: 0x00000000001606e0
    RAX: 0xff000000ff000000, RBX: 0xffffff806a5ee000, RCX: 0x0000000000000000, RDX: 0x0000000000000000
    RSP: 0xffffff807f2cbc20, RBP: 0xffffff807f2cbc30, RSI: 0x00000000ff000000, RDI: 0xffffff806a5ee000
    R8: 0x0000000000000000, R9: 0xffffff800b4e5e00, R10: 0xffffff800086edd0, R11: 0xffffff80002dad00
    R12: 0xffffff806a4791c8, R13: 0xffffff806a5ee000, R14: 0xffffff806a5ee000, R15: 0xffffff806a479000
    RFL: 0x0000000000010282, RIP: 0xffffff7f816661f1, CS: 0x0000000000000008, SS: 0x0000000000000010
    CR2: 0x000000010055700c, Error code: 0x0000000000000000, Faulting CPU: 0x2

    Backtrace (CPU 2), Frame : Return Address
    0xffffff807f2cb8d0 : 0xffffff8000220792
    0xffffff807f2cb950 : 0xffffff80002c4794
    0xffffff807f2cbb00 : 0xffffff80002da55d
    0xffffff807f2cbb20 : 0xffffff7f816661f1
    0xffffff807f2cbc30 : 0xffffff7f81667413
    0xffffff807f2cbc70 : 0xffffff7f8165560c
    0xffffff807f2cbcb0 : 0xffffff7f81654de7
    0xffffff807f2cbce0 : 0xffffff7f816551bd
    0xffffff807f2cbd10 : 0xffffff7f80c52832
    0xffffff807f2cbd50 : 0xffffff7f816dd383
    0xffffff807f2cbda0 : 0xffffff7f816df692
    0xffffff807f2cbde0 : 0xffffff7f816df7c4
    0xffffff807f2cbe20 : 0xffffff7f80c564c5
    0xffffff807f2cbe60 : 0xffffff7f80c56628
    0xffffff807f2cbe90 : 0xffffff7f80c59fd7
    0xffffff807f2cbef0 : 0xffffff800063d4d6
    0xffffff807f2cbf30 : 0xffffff800063c250
    0xffffff807f2cbf70 : 0xffffff800063c0f4
    0xffffff807f2cbfb0 : 0xffffff8000820057
    Kernel Extensions in backtrace:[D0A1F6BD-E66E-3DD8-9913-A3AB8746F422]@0xffffff7f80c47000->0xffffff7f80c7ffff

    BSD process name corresponding to current thread: kernel_task

    Mac OS version:

    Kernel version:
    Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64
    Kernel UUID: ***************************************
    System model name: MacBookAir5,1

    System uptime in nanoseconds: 1044382242324
    last loaded kext at 5847435022: com.avast.PacketForwarder 1.3 (addr 0xffffff7f80abb000, size 20480)
    last unloaded kext at 75783118152: 227.6 (addr 0xffffff7f8148c000, size 8192)
    loaded kexts:
    com.avast.PacketForwarder 1.3
    com.avast.AvastFileShield 1.0.1 3.0 100.12.75 2.0.5d3 5.0.0d8 122 2.2.5a5 2.2.5a5 3.5.9 1.59 5.0.0d8 1.0.0d1 4.0.8f17 7.0.0 2.0.1d2 1.2.3 3.1.33 1.6.0 170.2.2 1.0.33 7.3.2 7.3.2 4.0.8f17 227.6 227.6 1.0.0d1 1.0.0d1 33 404 2.1.0 2.3.1 5.1.0 561.7.22 1.6.1 161.0.0 5.1.0 1.1.0 1.5 1.5 1.7 1.9 1.5 1.6 195.0.0 3.2.30 1.4 8 195.0.0 1.0 3.2.1 2.2.5a5 80.0.2 10.0.5 2.2.5a5 2.2.5a5 1.8.6fc18 1.3 1.0.10d0 5.1.1d6 3.1.3d10 5.1.1d6 3.1.33 1.0.4 1.0.10d0 2.3.4 2.3.4 4.0.8f17 4.0.8f17 1.8.5 1.8.5 1.2.5 230.5 5.0.0 5.1.0 5.0.0 1.6.0 2.0.3 2.0.8 420.3 2.1 5.0.0 5.1.0 1.6.1 1.7.1 1.1 177.8 1.0.0d1 331.7 1.7.2 28.18 1.5 2.7 1.4

    Thanks a lot for any help :)
  2. orangezorki macrumors 6502a

    Aug 30, 2006
    I'm not sure what is causing it, but it definitely shouldn't be happening.

    Did you clone or transfer everything including files and settings from an older Mac? If so, and you have backups of everything, you could try using the system restore function to get a clean install of Mac OS, and then reinstall the apps and transfer your data separately.

    Otherwise, a trip to your local Apple store is necessary...

  3. KPOM macrumors G5

    Oct 23, 2010
    If it's brand new, it could be a bad logic board. That happened to me once. I'd suggest a trip to the Genius Bar. They can run some diagnostics that could rule in or rule out a hardware issue.

    Also check the crash log. Go into Finder, hold down the Option key, and select Library from the Go menu. Within the Logs folder, look in the CrashReporter folder to see if there is a log file. If so, open it up and see if it provides any clues as to whether an application caused the error.
  4. halledise macrumors 65816

    May 7, 2009
    Hamilton Island, Whitsundays, QLD Australia
    don't think I'm being smart but it is either a hardware or software issue.

    possible faulty logic board as already suggested but more likely software.
    you could try an erase and fresh install of the OS to determine this - or run diagnostics test to see if it's hardware related - logic board or memory.

    this is what Apple Store will do for you anyway so your best bet would be to make an appointment and take it in if you're not confident of doing it yourself.
  5. TomCat macrumors member

    Jul 12, 2000
    You are 3/4 correct; a kernel panic is either a hardware issue or a driver issue. A clean reinstall should eliminate it as being a driver issue. It is most likely not a app-related software issue at all. Once you are at that point (after a reinstall), only hdwe is left.
  6. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    It shows the last loaded kext as Avast AV. I would uninstall Avast AV and see if that helps.
  7. applerepairs macrumors member

    Nov 21, 2011
    Fulham, London
  8. halloween38 thread starter macrumors newbie

    Oct 30, 2012
    Kernel Panics

    so far on, thanks for the help...

    I went into Console and Systems Diagnostic reports and looked through all of them and all of them have one of these two last loaded kexts:

    last loaded kext at 5446925754: com.avast.PacketForwarder 1.3 (addr 0xffffff7f80abb000, size 20480)


    last loaded kext at 335801153215: 1.7.2 (addr 0xffffff7f80795000, size 241664)

    I think that means that these are two different kernel panics happening.
    I have also noticed, that the two happen when I do different things, the avast one when the computer is in standby for a long time and I wake it up (it doesn't happen every time I do it, only sometimes) and the second one, when my MBA goes into screensaver and later, after the number of minutes I have set in preferences it goes into standby - when I wake it up just after that happens.

    Thanks for all the help so far, however I hope to get some help on the second panic (I have found on another forum, that Avast has not been updated to Lion, so I hope that if I uninstall it when I find some time that panic will go away) - I'm waiting for your help to find the faulty application that's causing those kernel panics grrrr....
  9. throAU, Nov 4, 2012
    Last edited: Nov 4, 2012

    throAU macrumors 603


    Feb 13, 2012
    Perth, Western Australia
    You return it to apple.

    Kernel panics are generally hardware (more often) or driver related (if it is driver related, everyone with the same combination of hardware and driver as you will be able to replicate the problem as it will affect them as well).

    If its brand new, it certainly shouldn't be doing that and my bet is DOA hardware - looking at the backtrace - it looks like it is crashing in the GPU driver, which means either a bug in the driver or broken hardware.

    If it was a bug in the driver, everyone with a new MBA would be seeing similar issues with the software you were running at the time.

    The fact you are getting different panic messages also tends to indicate hardware flakiness rather than a particular software bug causing the problem.

    It happens... sometimes you luck out and get a broken machine out of the box.

    Take it back.

    That said, uninstalling avast can't hurt as it is easily done, but i wouldn't waste any more time on it than that. This is the sort of thing your 90 day free support/applecare is for.

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