Macbook having kernel panics and dropping wireless connection, etc.

Discussion in 'Mac Basics and Help' started by lingfeng, Sep 4, 2009.

  1. lingfeng macrumors newbie

    Joined:
    Sep 4, 2009
    #1
    Hi all. I'm running OS X version 10.4.11 (Tiger). It's a 13" Macbook, two years old, from August 2007. I've recently been having a bunch of problems with it.

    First, it drops its wireless connection a lot. Most of the time this happens while I'm playing World of Warcraft, but I've seen it happen even when I'm not. Everyone else connected to the wireless will have absolutely no problem with it, but my Airport icon in the upper righthand corner of my screen will go grey and then connect again, then go grey, connect, etc. I also experience a lot of latency in my connection when others don't (example with WoW... someone else will have 98ms latency, and mine will shoot up to 2500ms or so). Most of the time when this happens my entire computer seizes up. My game skips, my iTunes skips, my mouse skips or won't even move, I can't type or click, etc. Additionally, I've had it happen even when I'm connected to the internet with an ethernet cable with Airport turned off, and my internet connection will die completely until I restart my computer.

    I've had problems with this computer in the past as well. About two months after I bought it, it wouldn't boot up and I had to reinstall the operating system. Then a year after I bought it, my motherboard crashed, and they couldn't really tell me why it might've happened.

    Second, I've had two kernel panics in the past two months. The first one was July 18th, 2009, and the second one happened just about half an hour ago today (Sept 4th). The panic.log is as follows (both dates are included):

    Sat Jul 18 12:31:02 2009
    panic(cpu 0 caller 0x00191997): pmap_flush_tlbs() timeout pmap=0x4b3700 cpus_to_signal=0x2
    Backtrace, Format - Frame : Return Address (4 potential args on stack)
    0x261b3698 : 0x128d0d (0x3cc65c 0x261b36bc 0x131f95 0x0)
    0x261b36d8 : 0x191997 (0x3cf870 0x4b3700 0x2 0x6)
    0x261b3748 : 0x192c79 (0x4b3700 0x34541000 0x0 0x0)
    0x261b37e8 : 0x173802 (0x5542 0x0 0x2c2bf 0x0)
    0x261b3878 : 0x1654d7 (0x5595cc0 0x0 0x0 0x1000)
    0x261b3968 : 0x165cc0 (0x34542000 0x0 0x0 0x0)
    0x261b39a8 : 0x18330d (0x2589b54 0x34541000 0x0 0x34542000)
    0x261b39d8 : 0x3a5bed (0x2589b54 0x34541000 0x1000 0x1000)
    0x261b3a18 : 0x3a68cb (0x4e41f00 0x2589f3c 0x34541000 0x1000)
    0x261b3a48 : 0x3a69a9 (0x4e1c240 0x1 0x4e1c240 0x0)
    0x261b3a68 : 0x3a6980 (0x4e1c240 0x0 0x2 0x1)
    0x261b3a88 : 0x3bf4e3 (0x4e1c240 0x0 0x261b3be8 0x553b680)
    0x261b3aa8 : 0x5f5c48 (0x4e1c240 0x553b680 0xe30000 0x261b3b68)
    0x261b3af8 : 0x5f7ad2 (0x5110000 0x553b680 0x2ced020 0x9c)
    0x261b3c68 : 0x5e326b (0x5110000 0x261b3cd0 0x0 0x0)
    0x261b3cf8 : 0x3b19b9 (0x5110000 0x1 0x261b3d2c 0x261b3d28) Backtrace continues...
    Kernel loadable modules in backtrace (with dependencies):
    com.apple.driver.AppleIntelGMA950(4.5.6)@0x5db000
    dependency: com.apple.iokit.IOPCIFamily(2.2)@0x5a1000
    dependency: com.apple.iokit.IOGraphicsFamily(1.4.8)@0x5b1000
    dependency: com.apple.iokit.IONDRVSupport(1.4.8)@0x5cc000

    Kernel version:
    Darwin Kernel Version 8.11.1: Wed Oct 10 18:23:28 PDT 2007; root:xnu-792.25.20~1/RELEASE_I386


    *********

    Fri Sep 4 16:35:32 2009
    panic(cpu 1 caller 0x00191997): pmap_flush_tlbs() timeout pmap=0x4b3700 cpus_to_signal=0x1
    Backtrace, Format - Frame : Return Address (4 potential args on stack)
    0x262f38e8 : 0x128d0d (0x3cc65c 0x262f390c 0x131f95 0x0)
    0x262f3928 : 0x191997 (0x3cf870 0x4b3700 0x1 0x2)
    0x262f3998 : 0x192c79 (0x4b3700 0x2580f000 0x0 0x160e20)
    0x262f3a38 : 0x173802 (0x58b73 0x0 0x262f3a68 0x1418df)
    0x262f3ac8 : 0x1654d7 (0x5bfd4c8 0x0 0x0 0x1000)
    0x262f3bb8 : 0x165cc0 (0x25810000 0x0 0x1 0x0)
    0x262f3bf8 : 0x169d29 (0x258ee10 0x2580f000 0x0 0x25810000)
    0x262f3ce8 : 0x126032 (0x258ee10 0x2580f000 0x0 0xa4)
    0x262f3d78 : 0x149676 (0x490fd10 0x51876a4 0x51876c4 0x51876b0)
    0x262f3db8 : 0x12b4ee (0x4ffd3b4 0x5187688 0x0 0x0)
    0x262f3df8 : 0x124b17 (0x4ffd300 0x0 0x18 0x262f3edc)
    0x262f3f08 : 0x195f2e (0x262f3f44 0x0 0x0 0x0)
    0x262f3fc8 : 0x19b81e (0x4ad3220 0x0 0x10 0x4ad3220) No mapping exists for frame pointer
    Backtrace terminated-invalid frame pointer 0xbffff0d8

    Kernel version:
    Darwin Kernel Version 8.11.1: Wed Oct 10 18:23:28 PDT 2007; root:xnu-792.25.20~1/RELEASE_I386




    I have absolutely no idea what any of that means. If anyone can help me, that would be great.

    I've already run memtest, and I've already run the hardware diagnostic test that comes on the CD that came with my computer (both the short version that takes about 30 min, and the extended one that took about 3 hours). The memtest said everything was fine, and Apple's hardware test came back saying "No problems detected." ...Which I don't believe for a second; clearly there is a problem.

    This combined with the problems I've had with this laptop in the past have caused me so much frustration with this computer that I finally just bought an Acer laptop a few weeks ago. I'd still like to figure out what's wrong with this one, though.

    Any and all help/insight anyone could give me on these problems would be greatly appreciated.

    - Courtney
     
  2. lingfeng thread starter macrumors newbie

    Joined:
    Sep 4, 2009
    #2
    Bump... I'd really like to be able to figure this out.
     

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