Software :: Kernel Hogging CPU On Tiger?
Dec 7, 2008
I'm sure that you have come across this problem before. It seems that a lot of users suffer the same problem, but I cannot see any answers that solve it.
I am running Mac OS 10.4.11 and the kernel suddenly hogs between 40 to over 100% of the CPU. I reboot many times to try to clear it, I have run applejack 2 and 3 times in succession, but nothing clears it. I did an 'archive and install' last week which cleared it for a few days, but now it's happening again. Do you have any ideas?
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Feb 1, 2010
Lately my iBook G4 with Tiger has been getting Kernel panics off and on. I have been trying to solve this problem and have been posting on the apple forms, usenet Newsgroups, and Yahoo Groups. I last had a Kernel Panic on July 11, but ever since last week have been getting them left and right. Here is my latest one.
Mon Feb 1 17:20:14 2010
Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x00000000B901F81E PC=0x000000000003FFD4
Latest crash info for cpu 0: Exception state (sv=0x36FED500)
PC=0x0003FFD4; MSR=0x00009030; DAR=0xB901F81E; DSISR=0x40000000; LR=0x0003FFBC; R1=0x1CAB3A70; XCP=0x0000000C (0x300 - Data access)
Backtrace: 0x00296204 0x0002BDCC 0x002FE21C 0x002FE2E4 0x002BAE8C 0x002BAF2C
0x002C25BC 0x002C268C 0x002EA2C0 0x0008ADB8 0x00029234 0x000233F8 0x000ABEAC 0x53435349
Proceeding back via exception chain: Exception state (sv=0x36FED500)
previously dumped as "Latest" state. skipping. Exception state (sv=0x36FE4500)
PC=0x9000AF48; MSR=0x0200F030; DAR=0xE00EF000; DSISR=0x42000000; LR=0x9000AE9C; R1=0xF007FC50; XCP=0x00000030 (0xC00 - System call)
Kernel version: Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace: 0x000954F8 0x00095A10 0x00026898 0x000A8204 0x000ABB80
Proceeding back via exception chain: Exception state (sv=0x36FED500)
PC=0x0003FFD4; MSR=0x00009030; DAR=0xB901F81E; DSISR=0x40000000;
LR=0x0003FFBC; R1=0x1CAB3A70; XCP=0x0000000C (0x300 - Data access)
Backtrace: 0x00296204 0x0002BDCC 0x002FE21C 0x002FE2E4 0x002BAE8C 0x002BAF2C
0x002C25BC 0x002C268C 0x002EA2C0 0x0008ADB8 0x00029234 0x000233F8 0x000ABEAC 0x53435349
Exception state (sv=0x36FE4500)
PC=0x9000AF48; MSR=0x0200F030; DAR=0xE00EF000; DSISR=0x42000000; LR=0x9000AE9C; R1=0xF007FC50; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC
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May 23, 2009
My girlfriend has an imac g5 running panther, she was able to get a copy of tiger also for the g5 from her job. Is it possible to run this operating system on her imac.
When i tried installing i got a kernel panic.
Her imac has a 1.6ghz power pc processor.
756mb ram
60 gigs of space left
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Apr 13, 2012
I have an EMac 800mhz and I tried to install tiger on it but it said something like "kernel panic, we are hanging here."
Info:
eMac, Mac OS X (10.3.x), 800 Mhz Powerpc 640 MB ram 60 gb HD
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Sep 7, 2009
I did a standard install of Snow Leopard (SL) and everything seemed fine for a while... but I noticed a lot of beachball time, and the computer became more and more unresponsive. I found then that Mail was hanging on me... immediately after start-up it seemed to work fine, but after about three minutes of working I could no longer compose emails, and the panels displaying inbox, or whatever, contents would not display their contents... even though I knew they were not empty! I also tried to quit Mail to refresh it, but found that it was not possible... I had to resort to force-quit Mail. Moreover, if I wanted to shut down Mail would not quit and i had to force quit before I tried to shutdowN... every time! After a few abortive sessions I stopped Mail being a log-in item and found that everything ran fast and smooth UNTIL I loaded Mail... after which the whole of the above scenario would repeat... I then decided to look in Activity Monitor and found that Mail was listing between 90% and 120%+CPU usage!!... even when it was in the background and not being overtly used. When I did manage to quit it, after it had left the desktop and switcher, it was still listing 20% or so CPU usage.
I decided to try a different client, and loaded Thunderbird. Runs great... and so does Snow Leopard all the way round now!! But I don't really want to go over to Thunderbird... I would rather stick to the integration level possible with Mail. I hope that some form of patch will be found to correct this behaviour. (By the way, I have always had some problems with Mail cancelling shutdown even before SL came onto the scene!)
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Sep 20, 2010
I just installed Snow Leopard and it is running terrribly slow. In the Activity Monitor, UserEventAgent is using 95%-100% off the CPU. What can I do?
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Jan 25, 2009
I've been having a few issues with "Adobe AIR Application installer" hogging my CPU all the time.
I was wondering if anyone could give an insight in to what it's doing, why it's doing it and how to stop it regularly occurring. I keep noticing it using iStat Menus, and quitting the process but it keeps coming around!
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Jan 6, 2011
Everything is running very, very slowly. In the Terminal, top shows me that process 15, DirectoryService, is using between 45 and 248%(!) of my cpu, and hdiutil is also using much more than I expect. What is causing this, and, more importantly, how can I make it stop. It is making my computer unusable.
It doesn't seem to matter what applications are running or if I have Web Sharing on or off. I suspected it was the flood of attempted logins from having Web Sharing on, but turning it off doesn't make any difference.
System Profile
Mac OS X 10.6.5
Model Name:MacBook
Model Identifier:MacBook3,1
Processor Name:Intel Core 2 Duo
Processor Speed:2.2 GHz
Number Of Processors:1
Total Number Of Cores:2
L2 Cache:4 MB
Memory:4 GB 667 MHz DDR2 SDRAM
Bus Speed:800 MHz
Boot ROM Version:MB31.008E.B02
SMC Version (system):1.24f3
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Nov 18, 2010
I bought a brand new 15" i7 MBP two weeks ago. Today I noticed Finder taking up 375 MB of RAM, somewhat significantly more than anything else running. As of now I still just have the stock 4 GB ram in the machine, and less than 100 MB are free.
I'm not noticing any huge slowdowns so I'm not totally worried about it, I was just surprised to see Finder using so much memory. Is this normal? Is there an easy way to restart Finder?
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Nov 10, 2009
For the last week, my Mac has been running very slow. Even when I don't have any apps open, it still lags. I opened up Activity Monitor to see what is going on. I see that a root process "AgentDaemon" is taking up almost all my CPU and RAM.
When I try to quit (or force quit) this process in the Activity Monitor, it will go away for a second and then come right back.
Does anyone know what purpose the "AgentDaemon" serves? And why is it hogging all my CPU and RAM?
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Mar 25, 2010
I installed a new hard drive on my MBP the other day and used migration assistant to transfer from my old drive. Spotlight started indexing and eventually finished, at least I thought it had since I could access the spotlight menu.
For the past two days, however, mds and mdsworker have been hogging my CPU, often taking as much as 90% as shown in the activity monitor. Does this mean that spotlight is still indexing or are these processes somehow stuck? and if they're stuck, how can I fix that? I've rebooted, reset the pram, reset permissions, reset spotlight and even re-imported my files and it just continues and the fan is on a lot despite no activity.
I just opened the console but couldn't find anything related to mds.
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Jun 3, 2008
Every now and then my 2008 Santa Rosa MacBook w/ 10.5.2 will have it's fan run very fast while nothing is being done. No apps open. No internet traffic. Sometimes it even happens at the login window.
I've run Activity Monitor when this is occurring and found a process called "applet" that runs the CPU at 94%. Quitting this applet results in the CPU activity to drop to a mere 3% - 4% and after about 30 seconds, the fan starts to slow and gradually turns off. Nothing bad happens to the computer after quitting the "applet" process. I have no Microsoft applications on my computer.
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Mar 10, 2009
My G4 Powerbook (powerpc) has been hiccuping lately.
Basically, i'll be surfing or typing an email and every gesture takes 2-3 secs to complete. Even simple things like switching tabs or highlighting a few words are delayed.
I'm no expert but i opened Activity Monitor to take a look and noticed Firefox running between 60 - 85%... and this is with it just sitting there. I attached a screen shot of this so you can see it.
It seems to me that Firefox is causing this. But what can i do so it doesnt hog the system?
BTW - I have OS X 10.4.11 Firefox just upgraded itself to 3.0.7 and only had that plus Safari and Activity Monitor running.
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Oct 19, 2009
I have a new mac mini, 1gig ram, 2ghz processor, and finder is consistently using 65+ percent of cpu percentage, i checked my buddies computer and his finder uses 1%. Also my computer crawls and i assume this is the reason.
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Sep 19, 2008
As you can see in the attachment, the apps I'm running aren't that big of a deal for the most part. This is a 2007 version 8-core Mac Pro, 8 GB RAM. I'm curious what happens to make the apps open bog down the computer like this? Just leaving everything running for days at a time?
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Nov 25, 2009
Lately Safari has been hogging HUGE amounts of RAM after a while. After logging in on just this site to post this it has risen to 150MB! if I have several tabs open (2-4) it rises to about 600MB. This slows my system considerably as I only have 2GB total. Anyone have any ideas on how to fix this?
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Jun 27, 2012
When I launch Mail app, my mac starts running ridiculously slow. I get the spinning ball after almost every click.Just switching between safari tabs can take 1/2 minutes. In activity monitor it is showing 118% is being used by mail when it is running which hogs the entire CPU effectively.When I quit the application through activity monitor it quits, however if I try to quit (CMD Q) or force quit the application nothing happens. Also when I try and shut mail stops the shut down.
Info:
iMac, Mac OS X (10.7.4)
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Jun 23, 2014
I have had my Macbook Air since late 2010 (it's a mid 2010 model). Since a few months ago, I have been having an issue where Kernel_task will randomly kick in and use almost all of the CPU power, making the system pretty much unusable. This is especially bad right on startup and sometimes stops after a while, but can randomly kick in again. When the issue started, the system was running Mountain Lion. This issue has persisted even after I wiped my hard drive and put a fresh install of Mountain Lion on my MBA (and then upgraded immediately to Mavericks).
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Jul 15, 2008
Can certain Firefox themes use more battery power than others, thus causing battery life to short out sooner than it should? I'm using Metal Ice right now and I notice that my battery life isn't quite as long as it is with other themes.
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Mar 11, 2012
recently safari started taking up more & more ram. i have a standard setup 4gb ram on 2011 macbook pro / lion os x and i am left with 5-10mb ram when opening safari = crippled system entirely. no extensions, using top sites tho. no idead how it came about, hate using ff on mac?
Info:
MacBook Pro, Mac OS X (10.7.3), Safari
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Aug 13, 2009
Yes you read that right. Your brand spanking new MBP will use a 32-bit kernel as default.
You can force 64-bit kernel but some of your hardware will not be working.
So all that marketing crap about the benefits of 64-bit etc are all B.S.
I don't want a million threads about how this will not effect the running of 64 bit apps, etc. because it will. Your 64-bit app will run but it will not be able to address more than 4Gb of RAM.
There are also many more advantages to having a 64-bit kernel.
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Jun 16, 2009
Snow Leopard 10A380 will not load the 64-bit kernel on my late 2007 aluminum iMac with 4gb of RAM. I held down the "6" and 4" during boot and it still boots the 32-bit kernel.
My Mac Pro at work does boot the 64-bit kernel but not by default.
I am concerned that Apple isn't going to allow iMac's and MacBooks the ability to load the 64-bit kernel and drivers to differentiate the consumer and pro models.
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Aug 30, 2009
Sounds like a desperate need for some Kentucky Fried Chicken while waiting for your 10.6 install.
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Aug 30, 2009
So, do you notice difference? Many people are confused should they use 64-bit kernel (including me)
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Sep 7, 2009
MacBooks(and macminis/air/imacs) with 64-bit efi now can try 64-bit kernel too
Instructions - [URL]
Original - [URL]
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Sep 8, 2009
So after reading a hundred million (maybe two or three less) messages on this topic, only confusion remains in my head. So here is a simple question for Mac experts:
I have an Early 2008 MBP (penryn, model MBP 4.1) which I think is capable of rebooting in 64 bit kernel mode. I have 4 Gb RAM memory and a 2.4 GHz C2D processor.
WOULD I SEE ANY DIFFERENCE AT ALL IN MY COMPUTER BETWEEN 32-BIT AND 64-BIT KERNEL?
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Dec 27, 2009
How do you know find out while in operation which kernel you are running in ?
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Jun 4, 2010
I am using a MacBook Pro 2010 (i7, OS 10.6.3). I sometime use Fusion 3.1 to access to Windows Vista 64-bit partition under BootCamp. I read that Snow Leopard is defaulted to 32-bit. 64-bit can be enabled by pressing 6 and 4 during startup. Is it safe to try out the 64-bit kernel? I worry that if there is a compatibility issue such as problems with drivers or softwares, my system may get messed up even when the system returns to 32-bit kernel next time it boots. Also, is it safe to use Time Machine to back up the system during the trial period? So far, TM has been backing up my laptop running 32-bit. I wonder if switching the 32-64 bit kernel back and forth will mess up the TM backups.
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Jun 29, 2010
I am running a 64-bit program which takes 8GB installed on my 2010 MBP i7. In this case, is there a performance gain if I switch to the 64-bit kernel?
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Jun 29, 2012
I am just starting a new job and have been getting extreme speed issues on my computer followed by this recent kernel panic. I am running 4 2 TB G Speeds through eSATA. My computer went down, when I brought it back up Final Cut Pro took 5-10 minutes just to simply open. I wasn't even attempting to open a certain project. Any ideas based on the attached Kernel report? [code]
Info:
Mac Pro
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