EXC300
Level 1 (0 points)

Q: MBAir started running slow and fan constanly on.

My Macbook Air has woken this morning running very slowly with the fan constantly on. Ive tried some research but Im not that technical. Im posting some info from the activity monitor as suggested before to see if you can help, thanks in advance.

kernel_task244.41:02:39.471004590root17.3 MB3.7 MB64 bit379.3 MB0 bytes0-NoNo0 bytes0 bytes000 bytes0 bytes0 bytesNoNo0 bytes

CPU System is 64% User 3% Idle 33%

 

Data read sec / 0kb

Date written sec / 20kb

 

Here is the last 50 odd messages, hope its not too much.

May  6 11:51:15 Pauls-Air garcon[505]: Failed to connect (colorGridView) outlet from (NSApplication) to (NSColorPickerGridView): missing setter or instance variable

May  6 11:51:15 Pauls-Air garcon[505]: Failed to connect (view) outlet from (NSApplication) to (NSColorPickerGridView): missing setter or instance variable

May  6 11:51:16 Pauls-Air kernel[0]: Sandbox: appleeventsd(47) deny file-read-metadata /Library

May  6 11:51:16 --- last message repeated 14 times ---

May  6 11:51:16 Pauls-Air kernel[0]: Sandbox: appleeventsd(47) deny mach-lookup com.apple.ocspd

May  6 11:51:16 --- last message repeated 6 times ---

May  6 11:51:16 Pauls-Air com.apple.xpc.launchd[1] (com.apple.quicklook[507]): Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.apple.quicklook

May  6 11:51:18 Pauls-Air garcon[505]: Initialized badges.

May  6 11:51:18 Pauls-Air garcon[505]: Connecting to Dropbox on 'com.getdropbox.dropbox.garcon.cafe_501'

May  6 11:51:18 Pauls-Air garcon[505]: Connected to Dropbox on 'com.getdropbox.dropbox.garcon.cafe_501'.

May  6 11:51:18 Pauls-Air garcon[505]: Invalidating watch set.

May  6 11:51:18 Pauls-Air garcon[505]: Watch set is now: {(

     file:///Users/PaulC/Dropbox/

  )}.

May  6 11:51:20 Pauls-Air sandboxd[272] ([47]): appleeventsd(47) deny file-read-metadata /Library/Preferences/com.apple.security-common.plist

May  6 11:51:20 Pauls-Air sandboxd[272] ([47]): appleeventsd(47) deny file-read-data /Library/Preferences/com.apple.security-common.plist

May  6 11:51:20 Pauls-Air sandboxd[272] ([47]): appleeventsd(47) deny file-read-metadata /Library

May  6 11:51:50 --- last message repeated 5 times ---

May  6 11:52:15 Pauls-Air com.apple.xpc.launchd[1] (com.apple.PubSub.Agent[519]): Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.apple.pubsub.ipc

May  6 11:52:15 Pauls-Air com.apple.xpc.launchd[1] (com.apple.PubSub.Agent[519]): Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.apple.pubsub.notification

May  6 11:52:24 Pauls-Air ntpd[168]: FREQ state ignoring -0.022104 s

May  6 11:52:52 Pauls-Air pkd[233]: enabling pid=498 for plug-in com.getdropbox.dropbox.garcon(1.10) DDD3B7AD-787B-4010-83FF-9B5409CCB7CA /Applications/Dropbox.app/Contents/PlugIns/garcon.appex

May  6 11:52:52 Pauls-Air taskgated[94]: no application identifier provided, can't use provisioning profiles [pid=521]

May  6 11:52:53 Pauls-Air WindowServer[136]: disable_update_timeout: UI updates were forcibly disabled by application "Grab" for over 1.00 seconds. Server has re-enabled them.

May  6 11:52:53 Pauls-Air garcon[521]: Failed to connect (colorGridView) outlet from (NSApplication) to (NSColorPickerGridView): missing setter or instance variable

May  6 11:52:53 Pauls-Air garcon[521]: Failed to connect (view) outlet from (NSApplication) to (NSColorPickerGridView): missing setter or instance variable

May  6 11:52:53 Pauls-Air kernel[0]: AppleHSSPIHIDDriver::InterruptHandlerEntry Transfer number error. Expected: 26 Received: 27AppleHSSPIHIDDriver::InterruptHandlerEntry Transfer number error. Expected: 28 Received: 29AppleHSSPIHIDDriver::InterruptHandlerEntry Transfer number error. Expected: 30 Received: 31AppleHSSPIHIDDriver::InterruptHandlerEntry Transfer number error. Expected: 32 Received: 33Sandbox: appleeventsd(47) deny file-read-metadata /Library

May  6 11:52:53 Pauls-Air kernel[0]: Sandbox: appleeventsd(47) deny file-read-metadata /Library

May  6 11:52:53 --- last message repeated 13 times ---

May  6 11:52:53 Pauls-Air kernel[0]: Sandbox: appleeventsd(47) deny mach-lookup com.apple.ocspd

May  6 11:52:53 --- last message repeated 6 times ---

May  6 11:52:53 Pauls-Air WindowServer[136]: common_reenable_update: UI updates were finally reenabled by application "Grab" after 1.59 seconds (server forcibly re-enabled them after 1.00 seconds)

May  6 11:52:56 Pauls-Air garcon[521]: Initialized badges.

May  6 11:52:56 Pauls-Air garcon[521]: Connecting to Dropbox on 'com.getdropbox.dropbox.garcon.cafe_501'

May  6 11:52:56 Pauls-Air garcon[521]: Connected to Dropbox on 'com.getdropbox.dropbox.garcon.cafe_501'.

May  6 11:52:56 Pauls-Air garcon[521]: Invalidating watch set.

May  6 11:52:56 Pauls-Air garcon[521]: Watch set is now: {(

     file:///Users/PaulC/Dropbox/

  )}.

May  6 11:52:57 Pauls-Air sandboxd[272] ([47]): appleeventsd(47) deny file-read-metadata /Library/Preferences/com.apple.security-common.plist

May  6 11:52:57 Pauls-Air sandboxd[272] ([47]): appleeventsd(47) deny file-read-data /Library/Preferences/com.apple.security-common.plist

May  6 11:52:57 Pauls-Air sandboxd[272] ([47]): appleeventsd(47) deny file-read-metadata /Library

May  6 11:53:30 --- last message repeated 5 times ---

May  6 11:54:33 Pauls-Air ntpd[168]: FREQ state ignoring -0.021244 s

May  6 11:56:45 Pauls-Air ntpd[168]: FREQ state ignoring -0.024850 s

May  6 11:57:39 Pauls-Air garcon[521]: host connection <NSXPCConnection: 0x60800010fa50> connection from pid 498 invalidated

May  6 11:58:58 Pauls-Air ntpd[168]: drift PPM:73.785 -> 44.722

May  6 11:59:16 Pauls-Air Console[535]: Failed to connect (_consoleX) outlet from (NSApplication) to (ConsoleX): missing setter or instance variable

May  6 11:59:27 Pauls-Air com.apple.xpc.launchd[1] (com.apple.imfoundation.IMRemoteURLConnectionAgent): The _DirtyJetsamMemoryLimit key is not available on this platform.

MacBook Air, OS X Yosemite (10.10)

Posted on May 6, 2015 4:03 AM

Close
EXC300

Q: MBAir started running slow and fan constanly on.

  • All replies
  • Helpful answers

  • by Linc Davis,

    Linc Davis Linc Davis May 6, 2015 12:34 PM in response to EXC300
    Level 10 (208,037 points)
    Applications
    May 6, 2015 12:34 PM in response to EXC300

    Apps can affect Mac performance, battery runtime, temperature, and fan activity - Apple Support

  • by EXC300,

    EXC300 EXC300 May 6, 2015 1:00 PM in response to Linc Davis
    Level 1 (0 points)
    May 6, 2015 1:00 PM in response to Linc Davis

    Thanks Linc

     

    I'm copying this as I'm not sure what to do about it, but i guess its the kernel activity thats making the fan run 24/7

     

    Activity Monitor may show that a process named kernel_task is using a large percentage of your CPU, and during this time you may notice a lot of fan activity. This process helps manage temperature by making the CPU less available to processes that are using the CPU intensely. In other words, kernel_task responds to conditions that cause your CPU to become too hot. When the temperature decreases, kernel_task automatically reduces its activity.

  • by Linc Davis,

    Linc Davis Linc Davis May 6, 2015 1:14 PM in response to EXC300
    Level 10 (208,037 points)
    Applications
    May 6, 2015 1:14 PM in response to EXC300

    How much CPU is kernel_task using, roughly?

  • by EXC300,

    EXC300 EXC300 May 6, 2015 1:19 PM in response to Linc Davis
    Level 1 (0 points)
    May 6, 2015 1:19 PM in response to Linc Davis

    Activity is showing  ( kernal_task 240 )

     

    I dont quite understand why this is in the % column. Below is a paste of the reading.

     

    kernel_task244.02:28:51.931002510root0 bytes0 bytes0 bytes0 bytes000 bytes0 bytes64 bit-NoNo0 bytes0 bytes0 bytesNoNo0 bytes

  • by Linc Davis,

    Linc Davis Linc Davis May 6, 2015 1:22 PM in response to EXC300
    Level 10 (208,037 points)
    Applications
    May 6, 2015 1:22 PM in response to EXC300

    The kernel is using excessive processor cycles. Below are some possible causes for the condition.

    Throttling

    When it gets high temperature readings from the hardware, or low voltage readings from the battery of a MacBook, the kernel may try to compensate by interrupting the processor(s) to slow them down and reduce power consumption. This condition can be due to:

    ☞ a buildup of dust on the logic board

    ☞ high ambient temperature

    ☞ a worn-out or faulty battery in a portable

    ☞ the malfunction of a cooling fan, a temperature sensor, a voltage sensor, or some other internal component

    Note that if the problem is caused by a sensor, there may be no actual overheating or undervoltage.

    If the computer is portable, test with and without the AC adapter connected. If kernel_task hogs the processor only on AC power, charging is causing the machine to heat up. That behavior may be normal for some models. CPU usage should drop when charging is complete.

    Apple Diagnostics or the Apple Hardware Test, though not very reliable, is sometimes able to detect a fault. For more thorough hardware testing, make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

    If nothing is wrong with the hardware, then whatever you can do to improve cooling may help.

    Installed software

    User-installed software that includes a device driver or other kernel code may thrash the kernel. That category includes virtualization software, such as Parallels and VMware, as well as most commercial "anti-virus" products. Some system-monitoring applications, such as "iStat," can also contribute to the problem. You can test for this possibility by completely disabling or removing the software according to the developer's instructions, or starting in safe mode. Note, however, that disabling a system modification without removing it or testing in safe mode may not be as easy as you think.

    Corrupt NVRAM or SMC data

    Sometimes the problem is cleared up by resetting the NVRAM or the SMC.

    External display

    Connecting an external LCD display to some MacBook Pro models while the lid is open may cause this issue. If applicable, test by closing the lid or disconnecting the display. You might get better results with a newer LED display.

  • by EXC300,

    EXC300 EXC300 May 7, 2015 12:32 AM in response to Linc Davis
    Level 1 (0 points)
    May 7, 2015 12:32 AM in response to Linc Davis

    Hi Linc

    Thank you for your interest, very helpful. Ambient temp is not the problem, dust could well be an issue. Ive tried resetting the SMC but will try both NVRAM and SMC again. It may well be down to the repairers but the evening before this happened my partner was talking EDF (a power supplier) and engaged in a real time chat (dialogue boxes) on 2 occaisions. Do you know if these processes leave anything behind that may cause this type of change to the software.

     

    Thanks again.

  • by Linc Davis,

    Linc Davis Linc Davis May 7, 2015 5:04 AM in response to EXC300
    Level 10 (208,037 points)
    Applications
    May 7, 2015 5:04 AM in response to EXC300

    Do you know if these processes leave anything behind that may cause this type of change to the software.

    Not likely.

  • by EXC300,

    EXC300 EXC300 May 8, 2015 10:53 PM in response to Linc Davis
    Level 1 (0 points)
    May 8, 2015 10:53 PM in response to Linc Davis

    Ok not likely then, I started it in safe mode and it continued to run the fan, so I guess that points to a dust or hard ware issue. I did the SMC and NVRAM but nothing seemed to change but today it seems to have sorted it self out.

    Im much better informed so thanks again, very helpful.