problem with mac book air :'(

Discussion in 'Mac Notebooks' started by Steven-F, Dec 8, 2016.

  1. Steven-F

    Steven-F New Member

    Dec 8, 2016
    Likes Received:
    My computer is constantly, daily, restarting because of a problem...

    The report:

    Anonymous UUID: 7BF2DBF4-8D92-1F52-1493-666C7A3E0C63

    Thu Dec 8 02:24:02 2016
    panic(cpu 3 caller 0xffffff800105265d): "zalloc: zone map exhausted while allocating from zone buf.8192, likely due to memory leak in zone vm objects (707916160 total bytes, 3160313 elements allocated)"@/SourceCache/xnu/xnu-2422.115.15/osfmk/kern/zalloc.c:2494
    Backtrace (CPU 3), Frame : Return Address
    0xffffff809a463460 : 0xffffff8001023139
    0xffffff809a4634e0 : 0xffffff800105265d
    0xffffff809a4635e0 : 0xffffff80011c98ba
    0xffffff809a463640 : 0xffffff80011c92ab
    0xffffff809a463710 : 0xffffff80011c8571
    0xffffff809a463750 : 0xffffff80011c8747
    0xffffff809a463770 : 0xffffff8001359182
    0xffffff809a4637d0 : 0xffffff8001394fac
    0xffffff809a4637f0 : 0xffffff8001395fd3
    0xffffff809a463890 : 0xffffff8001392125
    0xffffff809a4639a0 : 0xffffff800135c352
    0xffffff809a463a30 : 0xffffff8001369dfc
    0xffffff809a463b60 : 0xffffff80011ff6e7
    0xffffff809a463bd0 : 0xffffff80011e8c5e
    0xffffff809a463f50 : 0xffffff8001441983
    0xffffff809a463fb0 : 0xffffff80010f4c86

    BSD process name corresponding to current thread: backupd

    Mac OS version:

    Kernel version:
    Darwin Kernel Version 13.4.0: Mon Jan 11 18:17:34 PST 2016; root:xnu-2422.115.15~1/RELEASE_X86_64
    Kernel UUID: 8926E512-6714-34FC-B27C-6AE90EB51D5E
    Kernel slide: 0x0000000000e00000
    Kernel text base: 0xffffff8001000000
    System model name: MacBookAir6,2 (Mac-7DF21CB3ED6977E5)

    System uptime in nanoseconds: 34245462041814
    vm objects:707916160
    vm object hash entri:124476440
    VM map entries:249498800
    vm pages:72871632
    ipc ports:3160480
    HFS node:21448576
    HFS fork:6529024
    ubc_info zone:4283576
    vnode pager structur:1943240
    Kernel Stacks:2326528

    Backtrace suspected of leaking: (outstanding bytes: 167328)

    last loaded kext at 29815584556546: 4.2.1b5 (addr 0xffffff7f8312a000, size 20480)
    last unloaded kext at 29886525596098: 4.2.1b5 (addr 0xffffff7f8312a000, size 16384)
    loaded kexts:
    com.avast.AvastFileShield 3.0.0
    com.avast.PacketForwarder 2.1 124 11.1 8.0.1 3.0 4.2.7f5 1.60 1.0.0 100.14.34 2.0.9d7 2.6.3f7 3.5.13 1.0.0d1 1.1.2 1.7.0 4.26.0 7.0.0 1 4.2.7f5 2.0.4d1 170.4.11 1.2.5 8.2.8 8.2.8 3.4.1 10.21 404 1.0.0d1 1.0.0d1 1.0.0d1 35 2.6.0 3.0.5 683.4.0 842.21.65 683.4.0 161.0.0 2.0 2.0 1.8 2.1 2.0 1.7 153 3 1.0 1.0 10.0.7 2.6.3f7 1.0.0 1.9.7fc2 1.14 4.2.7f5 1.0.0 5.7.1d6 2.6.3f7 2.6.3f7 4.2.7f5 3.1.8 1.0.4 1.0.12d1 91.3 2.4.1 3.6.22 98.26 2.4.1 3.1.7 3.1.7 1.4.5 3.6.7 3.6.0 3.6.7 650.4.0 656.4.1 170.15 24.1 245.13.1 2.6.5 660.4.2 2.0.1 3.3.1 640.36 1.0.1b5 3.2 24.1 2.0.34 2.0.34 686.4.1 2.0.34 2.0 2.0 2.0.0 1.1 278.11.2 1.0.0d1 7 2 373 1.9 23 28.30 2.0 2.9 1.4 1 1.0
    Model: MacBookAir6,2, BootROM MBA61.0099.B20, 2 processors, Intel Core i5, 1.3 GHz, 4 GB, SMC 2.13f9
    Graphics: Intel HD Graphics 5000, Intel HD Graphics 5000, Built-In
    Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1600 MHz, 0x80AD, 0x483943434E4E4E384A544D4C41522D4E544D
    Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1600 MHz, 0x80AD, 0x483943434E4E4E384A544D4C41522D4E544D
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x117), Broadcom BCM43xx 1.0 (
    Bluetooth: Version 5.2.7f4 15858, 3 services, 15 devices, 1 incoming serial ports
    Network Service: Wi-Fi, AirPort, en0
    Serial ATA Device: APPLE SSD SD0256F, 251 GB
    USB Device: Internal Memory Card Reader
    USB Device: BRCM20702 Hub
    USB Device: Bluetooth USB Host Controller
    Thunderbolt Bus: MacBook Air, Apple Inc., 23.6

    Can somebody PLEASE help me :s I know nothing of technology and I, as a student, don't have the money to buy a new laptop or to go the official apple repair service...
    Steven-F, Dec 8, 2016
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  2. Steven-F

    honestone New Member

    Sep 17, 2014
    Likes Received:
    Kent, WA (just south of Seattle, WA)
    It seems the OS is Mavericks, OS 10.9.5. Also, it looks like you have the same MacBook Air model I have.

    Have you ever done any disk cleanup/maintenance/repairs?

    Are you making any backups to an external device?
    honestone, Dec 8, 2016
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  3. Steven-F

    Steven-F New Member

    Dec 8, 2016
    Likes Received:
    We have a Time capsule that takes backups...

    Never done a disk cleanup or something like that :s
    Steven-F, Dec 8, 2016
  4. Steven-F

    honestone New Member

    Sep 17, 2014
    Likes Received:
    Kent, WA (just south of Seattle, WA)
    OK, at least you have a backup. That is to an external device, right? And, by Time Capsule, you mean Time Machine? (I use something else for my backups, so that is why I ask). How often does Time Machine run?

    Now, you should first try and do some disk cleanup/maintenance/repairs. First, on your own, get rid of ANY stuff you do not need. That would include any prior versions of software.

    Secondly, download, install, and run the excellent freeware program Onyx. You can get it from here:

    Note that there are specific versions for each Mac OS. Since (apparently, and you need to confirm that) you are using Mavericks (OS 10.9.5), you would download Version 2.6.8. After you install it, start it up. You will first need to enter your admin password. The, let it check the structure of your disk. When that completes, start with the Maintenance tab. Within that one, there are 3 tasks you need to run:


    For Permissions, run it multiple times. You should see the list of permissions repaired getting smaller and smaller. For Scripts, check off Daily, Weekly, and Monthly.

    Next, after completing Rebuilding, click on the Cleaning Tab, and run each of those sub-tasks (I believe that version does not have Erasing as one of those tasks. If it does, DO NOT run it).

    When you run some of those tasks, the software will tell you that you need to Restart your Mac. That's normal, so just click on Restart when you see that screen.

    The main things Onyx is going to do are Repair Permissions, and clean out some unneeded stuff. You should get into the habit of running Onyx periodically. Myself, I do it once a week, as part of my weekly disk cleanup/maintenance/repair, and backup, processing for each of my Macs. I also am doing cleanup every day on each of my machines, by permanently removing stuff, including EMails I no longer need.

    Next, launch Disk Utility. It is contained within the Utilities folder, which is within the Applications folder. I can't remember if you can Repair the disk at that time, but instead need to launch it "externally" (I have a couple of more robust third party apps that can do repairs (along with other tasks), so I don't use it for that purpose).

    Report back after you have done all this. One other thing you need to check, just in case you need it: Click on the black Apple icon in the upper left hand corner, then select About This Mac. On the screen that appears, click on System Report. Then, click on SATA/SATA Express. It will then show your internal SSD drive, along with the partitions on it. Hopefully, one of them is "Recovery HD". Let us know if you see it.
    Last edited: Dec 8, 2016
    honestone, Dec 8, 2016
  5. Steven-F

    Steven-F New Member

    Dec 8, 2016
    Likes Received:
    Thank you for trying to help me...

    I did every thing you asked (multiple times).... But still... the problem keeps happening.
    I have a Revovery HD:

    Recovery HD:

    Capacity: 650 MB (650.002.432 bytes)

    BSD Name: disk0s3

    Content: Apple_Boot

    Volume UUID: 016CFB00-41A9-336E-B68D-C059D6C1A61E
    Steven-F, Dec 12, 2016
  6. Steven-F

    honestone New Member

    Sep 17, 2014
    Likes Received:
    Kent, WA (just south of Seattle, WA)
    Sorry for all your troubles. I am not very good at reading (and understanding) the info you posted above, in your first post. Maybe someone else with more intimate knowledge can provide guidance. Short of that, you might need to do a complete re-installation of OS 10.9.5, along with recovering all the other needed "stuff" from your backup. But, that is a somewhat detailed process, and if you pursue it, we can give you instructions here. It is, though. somewhat "risky".
    honestone, Dec 12, 2016
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