OS X :: MacBook Stalls At Startup - Kernel Panic
Aug 6, 2009
My husband's mac book started acting weird while I was out own town. He was unable to get it to start up, but eventually did, backed up his important data, and then I had him attempt to verify and repair permissions. I guess it indicated there were errors but could not fix them. Once again, his macbook stalls at start up and will not get past the gray screen with the apple and the wheel. Last night at this point it kernel panicked.
Today (since I'm back now) I tried to boot it in safe mode, and it still hangs. I zapped the PRAM, and that didn't help. My next step is to try and boot from his install discs, when he finds them. My question is, should I bother trying to verify and repair, or should I just do an archive & install (if possible) or an erase and install (if necessary)? This is a mac book from 06-ish running 10.4.? My hubby claims to not have installed or updated anything recently.
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Nov 7, 2010
I'm getting a kernel panic at start up and the optical drive wont read the start up DVD. I can boot up windows via bootcamp and the machine runs fine. I'm not getting any red LED's on my risers, so i'm assuming its not a RAM issue. I have a Mac Pro 8-core (2008) stock, just added 10 gigs of RAM.
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Aug 10, 2010
My Mac Pro (late 2006) now has kernel panics at startup. Problem first happened while computer was in sleep mode, a second kernel panic happened about 10-15 minutes after reboot the first time. Now it happens at startup every time. Zapped PRAM multiple times to no effect. Tested original 10.4 install disk, as well as 10.5 and 10.6 upgrade disks with all external connections removed and from a cold boot. The 10.4 disk causes the kernel panic every time. The 10.5 and 10.6 disks do too, if the C or D key is depressed. The upgrade disks will hang in a gray screen (10.6) or pale blue screen (10.5) with no keys depressed--computer keeps running but fails to boot. Also tested the RAM (4 X 512 MB) in different combinations of one pair in the top riser board (and switched risers, and removed lower board completely). All resulted in kernel panics. Next option?
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Nov 11, 2008
I'm trying to fix my iMac. I am getting a kernel panic from start up! I've tried troubleshooting from the apple website. I've tried holding C. I only have two disk. Mac OS S install disc 1 & 2. I've tried holding Control, Option, R, and P.
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Mar 4, 2009
I have a 2 year old imac that was working fine until last night. I had just installed the "raw photo compatibility" update (although i think this is just coincidence) and shut my computer down.
When i booted it up again 3 hours later, i got to my desktop but instead of seeing my usual 3 partitions (macintosh, home, windows xp) I only saw 2 - windows xp was missing. Not only this but my system was continuously beachballing.
I was unable to force quit so after a few minutes i held in the power button for 4 seconds until it shut down. Upon reboot, i was (and still am) only able to get to the white screen with apple logo that you get on boot up. On this screen you have a little gear spinning round. This spins for some time then just as my computer would usually boot into the O/S, the gear stops and it hangs.
I am running the latest version of Leopard and so far i have:
Tried diagnostics mode - all diagnostics come back ok, even in extended test
Single user mode - tried FSCK to repair, first time it made changes to drive, after that nothing.
Tried safe mode - wont boot
Tried booting from leopard cd - still hangs in same place
Tried booting from tiger on an external hdd - at same place it usually hangs, it kernel panics instead
Swapped ram out - exactly the same problem when using someone elses ram
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Nov 30, 2007
I am running a quad core G5 PPC. I updated to 10.5.1 last week when it was made available and had no problems until yesterday. I tried to empty the trash and immediately had a kernel panic. I restarted and that is when the problem became more apparent then a simple restart! The Kernel Panic continued to repeat itself on the startup screen. I called apple support and went thru all the steps with them including trying to boot from the OS X 10.5 disk, in safe mode, as a target, trying to reset the (I guess I forgot what we were resetting but I was told to hold down Apple-R and Option-P) as well as opening the case and holding down the small button underneath the RAM. Anyway, nothing worked. Even in target disk mode, it made my G4 Powerbook running as the main pop up with a kernel panic! I cant get to the finder to see what the kernel panic parameters are.
Information:
G5 Power Mac
Mac OS X (10.5.1)
PPC
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Feb 15, 2009
I have an iMac that I bought in October 2007. All of a sudden, when I try to boot up my computer, I get a kernel panic. Can't get any further than the kernel panic even though I keep on re-booting.
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Nov 16, 2009
I moved over to an IMac from windows about 2 years ago and have never had any issues, until now. Whenever I boot my IMac I get a 'kernel panic' message (grey screen with 'you need to restart your computer in 4 languages). I cannot boot from my Mac HD, nor from a bootable superduper backup external HD, nor from my orginal SL or Leopard disk. All go into the kernel panic. I can however boot from my bootcamp Windows Vista partition. Tried booting into safe mode also does not work and gives the kernel panic screen. I have run both the standard and extended hardware tests and both have no errors. I booted in single user mode (that still works)and done a fcsk and unmount and both are without errors. Also done RAM flash. In single user modei can not find a PanicReporter directory or panic log. Cannot even install a fresh SL copy as my DVD wont boot either.
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Apr 21, 2010
Yesterday I was helping someone getting to know their MacBook Pro (early 2008, Intel core 2 duo 2.4GHz, Mac OS X 10.5.2). I installed Perian and Flip4Mac and Firefox 3.6. I also checked for updates because she's on a very old version. I tried downloading the updates, but because we had a very bad internet connection I stopped the download quite early on and told her to do it at home. However after I left she tried to shut down the computer but it hanged. She manually shut it down using the power button. When she tried to turn it on again she got a kernel panic message saying she should reboot. This however didn't work.
Now I've tried all sorts of things. I've removed Perian and Flip4Mac manually. I did a disk verification (all was well) and a permissions verification and repair. I tried booting in safe mode (still won't boot) clearing the SMC and resetting PRAM, none of it worked. I just wanted to check here first before either taking it to an Apple store or reinstalling Mac OS X. I've read on forums about hardware failing (RAM mostly). No idea if that's the case. I tried a hardware test, but I don't have her DVDs and used my own with version 10.5.5. The Standard test said it was all ok, but the extended test seemed to hang. I could ask for her own DVDs which I will need anyway if I'm going to reinstall Mac OS X.
Some details of the kernel panic:
The error code is: 0x000000010
Apart from that it says the following:
Backtrace terminated-invalid frame pointer 0
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.AppleIntelCPUPowerManagement(76.2.0)@0x2e63c000->0x2e65afff
And later on it says: Mac OS version: Not yet set.
And of course it shows some more info with lots of hex codes, I can type them out for you if you like, but I read elsewhere that the error message is usually not very useful. Would you recommend going to an Apple store to see if the RAM is faulty? Or do a reinstall of Mac OS X?
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May 10, 2010
Yesterday my wife's IMac (Bought in 2007, running SL)started to "Crash" Safari, and firefox were freezing and then the problem expanded to other programs like itunes. So this is what I did.
1. Copied all music and pictures to an external drive
2. Used the installation disk to restore a backup from time machine
3. Left it overnight
4. This morning the Imac said restore successful please restart
5. I did and then I got this grey screen with a picture of the power button on it telling me in lots of different languages to press the power button and restart.
6. I have done this about ten times now and it just keeps coming back
I am running the Imac with a bluetooth keyboard but do have access to a wired one. No idea if that makes a difference just thought I would mention it.
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Nov 20, 2010
I'm getting a kernel panic at start up and my mac wont boot up. I don't think its the RAM because the LED's are not red on the risers. When I start up holding "option" and select to boot up from the DVD it goes to the apple logo and on to the kernel panic. When I start up windows via bootcamp everything works fine. I've fsck. resetting PRAM, NVRam, nothing seems to work.
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Apr 27, 2012
Last night I was defraging my G4 OS Tiger 10.4.11 and at about 53% the power went out. Now all I get at start up is the Kernel Panic screen. What should be my first step?
Info:
PowerMac, Mac OS X (10.4.11)
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Sep 8, 2007
I'm relatively new to Macs and I wanted to try a clean install (or erase and install) on my ibook. I recently purchased a MBP and since Leopard is on the horizon, I wanted to do a "trial run" of installing an updated operating system. I know that you can just hit update instead of doing a clean install, but I've been reading that things run better when you do a fresh install. My old ibook still has Panther on it and I figured I could try to install Tiger on it from my MBP disks.
I know that this represents a violation of the license, but I thought it would be worth it to ensure that I don't make any major mistakes when I'm doing the same procedure with my brand new MBP when Leopard gets released. When I tried booting from the disk from my ibook I got a kernel panic which I interpreted as a sign that it was not a good idea so I abandoned the project. Now every time I try to start my ibook I get another kernel panic and I'm afraid I just broke my old computer.
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Sep 8, 2014
Model Name: MacBook Pro
Model Identifier: MacBookPro8,2
Processor Name: Intel Core i7
Processor Speed: 2.2 GHz
Number Of Processors: 1
Total Number Of Cores: 4
L2 Cache (per core): 256 KB
L3 Cache: 6 MB
Memory: 4 GB
Boot ROM Version: MBP81.0047.B27
SMC Version (system): 1.69f4
OS X 10.6.8
So a week ago I opened Photoshop and my macbook froze and gave me this screen:
I had to force it to shut down, and when I turned it back on, I'd get the chime, I'd see the logo and the spinning cog, then it would go to a white screen and either stall or shut itself off... I tried resetting the PRAM and SMC. I went into Disk Utility and verified the disk and the permissions. I also reset Photoshop's preferences, and completely reinstalled it. Booting in safe mode worked, but of course it's a little slow and I can't use some programs. I was able to start up normally by booting in single user mode and running the /sbin/fsck -fy command a couple times.
I ended up taking it to a Genius Bar, they ran a couple diagnostic tests and confirmed it wasn't a hardware issue and it was probably the OS. They reinstalled Snow Leopard, I restored my stuff with my Time Machine backup, and everything worked fine for a couple days.
But today when I turned it on, it shut itself down again! And running single user mode doesn't work anymore. It'll say "The volume Macintosh HD appears to be OK." and when I reboot, it shuts down at the white screen. Now the only way it will boot up is in safe mode, and if I close the lid to put it in sleep mode, it'll turn itself off after a few minutes.
I'm not incredibly tech savvy, but I'm wondering if it could be a third party program. I'm not sure how to find out which one is causing the issue, though... I've uninstalled SMCfanControl and StartupSound.prefpane. Those are the only two I can think of that could potentially mess with the startup...
Info:
MacBook Pro (15-inch Early 2011), Mac OS X (10.6.8)
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Jul 13, 2010
I've been trying to install Windows 7 64 bit on my girlfriend's computer, it's a 13" MBP, 4 GB, 2.4 GHz (mid-2010, 4 weeks old). I got through the installation without a hitch, got to the desktop, installed the Snow Leopard drivers, restarted... and then it froze after I typed in the password (the cursor circle froze, keyboard-trackpad unresponsive). I cleared the Bootcamp partition in OSX, repartitioned, and reinstalled again - this time without a password. It got to the desktop, and then after a few seconds the keyboard and trackpad became unresponsive again. This happens only when I install the SL drivers, upon restart. Now, I've tried reinstalling W7 a few times. I reformatted the whole disc, reinstalled SL... and still the same problem. I'm using a Windows 7 ISO from my university, the same ISO/Disc that I used to successfully install Windows 7 on my MBP.
I have since downloaded it twice, and burned the ISO three separate times, at 2.4x using Disc Utility. I've seen two similar instances discussed on other threads, but they were either adjacent to the main thread discussion (and unresolved), or just unresolved. In the installations that I've run since the initial few, I have run into issues that seem common (stalling when copying system files, etc.) I have since reformatted the whole disc, and those problems haven't arisen since. Also, I have successfully installed Windows XP from a university ISO on her computer. But she really needs Windows 7 64 bit... sorry for the long post, trying to be detailed. I updated SL before partitioning, and it's Bootcamp 3.1 (build 2328)
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Nov 26, 2010
For the past few days (never happened before) my apps started crashing continuously and kernel panic screen started appearing very frequently. I am still wondering what may be the cause of it, then I tested my RAM with Rember, and this log showed up:
Memtest version 4.22 (64-bit)
Copyright (C) 2004 Charles Cazabon
Copyright (C) 2004-2008 Tony Scaminaci (Macintosh port)
Licensed under the GNU General Public License version 2 only
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Nov 29, 2009
I did a quick search through the forum and didn't see anything specific about this problem. It just started to occur yesterday and nothing has changed on the computer. (Nothing new installed and no external hardware plugged in.)
Basically, it just pops up with the grey screen advising to restart. Sometimes it occurs after waking from sleep, sometimes it occurs after starting up, and sometimes it occurs in the middle of a task. I haven't noticed a specific pattern.
I ran the AHT and everything passed. I also ran Rember and the memory seemed fine in the test. I reset the PRAM and VRAM and the SMC after speaking with Apple. Finally, I reinstalled the OSX clean on the machine and the panics are still occurring.
This is the last panic report from the Macbook 1,1 2.0 with 1.25 GB RAM. I'm hoping it is the RAM and not something with the logic board, but am not sure if that can be ascertained without finding replacement RAM first.
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May 22, 2012
My computer had problems with display, track pad, not powering up, and lots of parts were replaced in January (MacBook Pro purchased 12.31.09). Got it home, after a while constant kernal panics. tried everything, brought it into Apple store yesterday, ran diagnostics, hard disk repaired, seemed OK.
Shortly after I came home it happened again. I repaired permissions, did verify disk, no problems with disk. Updated software, including went to Java and Adobe and updated them. Nothing works. Now the permissions note lots of problems with Remote Management (one of the updates from yesterday, 5.21) and Java (yesterday too). MacBook Pro OS X 10.6.8, would like to go to Lion but don't want to until my machine is stable?
Info:
MacBook Pro (13-inch Mid 2009), Mac OS X (10.6.8)
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Jan 4, 2009
I'm running a PowerBook G4 and I have recently run into some problems with kernel panic. I have bought and installed new ram, zapped the pram, and re-written the hard drive and I still have problems. The weird thing is, the computer only crashes when I move it. If I just sit still then it works fine, but if I move it from my lap to a table or something like that then I get the restart message. I have an appointment with the Geek bar tomorrow
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Aug 21, 2009
I'm having a weird problem with a 15" I bought in February (2009). I can boot up fine into the OS without any problems. But when I try to boot from the reinstallation CD to do a clean install, I keep getting a kernel panic. (And yes, I do need to do a clean install.)
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May 8, 2012
I've been experiencing recurring kernel panics for at least a month now and I seem to have narrowed down the issue to the RAM. Now I'm just not sure whether it's corrupt kernel files associated with the RAM or the actual hardware itself. I've run the extended apple hardware test and the error message I recieve (within 5 seconds) is that the error is with the file 4MEM/1/40000000:0x84938218 I've downloaded memtest and run that within terminal. Funny thing about that is as soon as I type "memtest all" my macbook kernel panics almost immediately. Something about the "memory lock-up" phase".
Other than that my computer works fine as long as I don't run too many applications at once. Often times video streaming or opening too many tabs in a web browser will do it. And you can forget about running games that will kernel panic almost immediately. here's an example of the logs I've been getting. It's not the most recent but they all say the same thing-I've checked. Interval Since Last Panic Report:
81752 secPanics Since Last Report: 16Anonymous UUID: 4C3B52DD-8029-42B8-8DFC-8E8A297DBE3A Fri Apr 27 21:26:55 2012panic(cpu 0 caller 0xffffff80002d1208): Kernel trap at 0xffffff8000202e44, type 14=page fault, registers:CR0: 0x0000000080010033, CR2: 0x0000008000000008, CR3: 0x000000004de24000, CR4: 0x0000000000040660RAX: 0x0000000000000000, RBX: 0x0000000000000000, RCX: 0x0000000000000000, RDX: 0x0000008000000000RSP: 0xffffff805ebfbd50, RBP: 0xffffff805ebfbd90, RSI:
[code]....
Info:
MacBook Pro, Mac OS X (10.6.8)
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May 15, 2012
Unfortunately, I've installed the latest update 10.7.4 from apple. Since I've upgraded I had 8 Kernel panics happening sometimes without even touching the macbook pro.this is the latest kernel panic report :
Interval Since Last Panic Report: 33787 sec
Panics Since Last Report: 2
Anonymous UUID: D509E77E-1936-47EB-9C95-EAA0CEC13E11
[code]....
Info:
MacBook Pro, Mac OS X (10.7.4)
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May 23, 2012
My mac air usually appear kernel panic. what the happen with my mac?
Info:
MacBook Air, Mac OS X (10.7.4)
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Jun 5, 2012
My MacPro keeps having kernel panic (4x in a week, then none in almost 2 weeks, then comes back again today) even when everything is updated. And I recognize that I always get the kernel panic only when I visit this one website where I usually go to stream an online movie. What could be wrong with my Mac? Is there a way to stop and/or prevent future kernel panic attack?
Info:
MacBook Pro, Mac OS X (10.6.8), around 2y.o
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Jun 14, 2012
I recently purchased a mid-2012 MacBook Pro (15-inch, 2.3 GHz, non-retina) and I have been receiving Kernel Panic error messages. The screen goes black with white text in multiple languages warning me to shut down my computer and the computer freezes. I have called Apple customer service multiple times. We tried multiple things, including wipe the hard drive and reinstall OS X Lion, but I still get Kernel Panics. One thing I did notice in the "send to Apple" report is that it mentions Google Chrome. It seems whenever I do get a Kernel Panic I am using Chrome. Here are the applications I have installed (besides the default Apple ones):Coda 2Final Cut Pro XTwitterGoogle Chrome Right now, as suggested by the second Apple associate, I uninstalled Google Chrome, to see if that was the cause. She says that it could be related to that or from a software update (which I doubt considering I have yet to install any updates since I reinstalled Lion).
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Jun 15, 2012
I've purchased my first MacBook air. This is the second crash it had in two days. The first one occured when I was watching a youtube video and the second one happened while closing Chrome (while watching a youtube video). Should I go back to the store or can I fix this myself? [code]
Info:
MacBook Air, Mac OS X (10.7.4), mid-2012
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Oct 15, 2010
I have read a million different posts, forums and most places people wouldn't want to go. This Mac is being very stubborn.
I have tried booting to safe mode, running the install disk, tried to load the utility on the install disk even tried a copy of diskwarrior (but I am not sure if it was a bootable copy).
In almost every instance the machine tries to load the cd and then spits it out and I get the restart screen. A few times I get the install to load but then it takes me to a screen that says something like �startup� run or install from these device after reboot, or something to that effect.
I even tried the command, option p r. If I just hit option with no disk it will list the mac hd. The machine is about 5 years old and is running osx 10.4.1?
This isn�t my machine so I can�t answer many questions about the OS. I was given a Snow Leopard 10.5 disk that appears to have been open.
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May 28, 2009
I've noticed this happening for the past few weeks. Basically if I'm watching video on any flash website like YouTube, and I plug in headphones, I get a kernel panic. So as normal I hold the power button to shut it off. However, when I turn it back on, it will beep 2 times, then 3 times, and continue to beep until I turn it off. When I power it on again, it won't beep but it sits on the blank screen before the Apple logo shows up and basically nothing happens and my fans start to go loud. I did this about 3 times before it loaded to the Apple logo loading screen and finally booted properly. After it crashed I removed the headphones, and nothing except the magsafe charger is plugged in.
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Jun 29, 2009
I have a uMB 2.4 GHZ. Bluetooth has always been fickle on this computer (jumpy mouse), but tonight when I turned bluetooth on from the menu bar as I was about to use the computer from clamshell mode hooked up to my TV, I got my first kernel panic on this MacBook.
I am curious if it is a software issue with bluetooth or hardware. Can anyone make anything from the log?
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Mar 15, 2010
I have a MBP, it had a flickering screen (graphics card), so I got it fixed under warranty, then about a month after the fix, the MBP refused to wake - I took it back again and it was fixed.
Now the MBP is experiencing repeated kernel panics - especially after the any system update - there were a few recently.
The only solution seems to be switching the machine off and letting it cool.
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