Kernel panic while playing CoD4 on new MP

Discussion in 'Mac Pro' started by Mr_Ed, Sep 3, 2010.

  1. Mr_Ed macrumors 6502

    Mar 10, 2004
    North and east of Mickeyland
    I decided to kill a little time and cranked up CoD4. I've played this game for years on my MP1,1 (x1900 and later 4870 GPU) without problems. After a couple of minutes in a match, I thought I saw a horizontal line on the screen for a split second. About a minute later, the game and machine froze up. After a hard shutdown and reboot, I found a kernel panic log. What worries me is that I think I saw a similar line "flash" previously but I was not sure at the time I actually saw it (it's very quick).

    2010 Hexacore with 5870, 8GB RAM.

    Anyone else experiencing anything like this under intense graphics activity?

    Top of panic log:

    Interval Since Last Panic Report: 135473 sec
    Panics Since Last Report: 1
    Anonymous UUID: 23CCB264-B5E0-4091-8907-576AAF73FD7D

    Fri Sep 3 17:20:33 2010
    panic(cpu 10 caller 0xffffff800020931a): "thread_invoke: preemption_level -1, possible cause: unlocking an unlocked mutex or spinlock"@/SourceCache/xnu/xnu-1504.7.60/osfmk/kern/sched_prim.c:1476
    Backtrace (CPU 10), Frame : Return Address
    0xffffff80b2443d70 : 0xffffff8000204b99
    0xffffff80b2443e70 : 0xffffff800020931a
    0xffffff80b2443ef0 : 0xffffff80002098fe
    0xffffff80b2443f60 : 0xffffff8000284d13
    0xffffff80b2443fa0 : 0xffffff80002c63c7

    BSD process name corresponding to current thread: kernel_task

    Mac OS version:

    Kernel version:
    Darwin Kernel Version 10.4.2: Tue Jul 27 21:17:17 PDT 2010; root:xnu-1504.7.60~1/RELEASE_X86_64
    System model name: MacPro5,1 (Mac-F221BEC8)
  2. vonMarion macrumors newbie

    May 27, 2010
    "There's something happening here
    What it is ain't exactly clear
    There's a man with a mac over there
    Telling me I got to beware
    I think it's time we stop, children, what's that sound
    Everybody look what's going down"

    but seriously. I'm really glad you posted this concern, because I've been having a similar problem, and have been stressing over it for a while. I have a 2010 Mac Pro, 4-core, 3.2 GHz, 5770, and nearly EVERY TIME I play Team Fortress 2 I have a kernel panic. Apple says its the software, and Valve says its the hardware, so I've been going in loops.

    I thought it might be a problem with overheating in the graphics card, but I didn't record anything (besides the power supply location) going over 60 degrees Celsius, and the Apple rep. says that's perfectly fine because Macs tend to run hot.

    I think the game might not be optimized for the new 2010 Mac Pros, including their graphics cards, and either isn't sending the correct information to the card, or is causing a memory leak, but there's no way to tell for sure right now .... :(

    Problem is, I can't find much else on this at the moment.
  3. hugodrax macrumors 6502a

    Jul 15, 2007

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