Mac Yosemite crashes often

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Level 1

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Mac Yosemite crashes often

Hello,

recently my MacBook Pro Retina has been crashing often. The worst happened about one week ago when it shut down and I couldn't start it anymore. I had to reinstall everything and restore the system from a Time Machine backup. Since then things got a little better, even though it's hard to tell, but I keep experiencing kernel panics. The last one was 10 minutes ago and this is the report I got afterward:

http://pastebin.com/dhaB2Cc1

(I had to put it in a pastebin because the forum wouldn't let me post it)

I always try to look into these reports but I'm not sure where exactly to look. I thought this would be the key:

hfs_swap_HFSPlusBTInternalNode: unrecognized catalog record type

but googling it seems to be a generic error.

Can you help me figuring it out?

thanks

MacBook Pro (Retina, 15-inch, Mid 2014), OS X Yosemite (10.10.5)

Posted on Aug 28, 2015 3:12 AM

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Answer 1

D.Cohen

Level 6

8,588 points

Aug 28, 2015 3:16 AM in response to qarlo

Hi! Below you will find the basic troubleshooting steps:

Try Safe Boot:

- Shut down your Mac

- Wait until your computer turns off and after that press the Power button

- Right after you hear the startup tone, press and hold the Shift key

- Release the Shift key when you see a grey Apple sign and the progress bar below this sign

- After your Mac boots up, restart it as you usually do.

If this doesn't help, follow the instructions below:

- Shut down your Mac

- Wait until your computer turns off and after that press the Power button

- Right after you hear the startup tone, press and hold the Shift key

- Release the Shift key when you see a grey Apple sign and the progress bar below this sign

- Once you see Desktop, start a Disk Utility scan to detect and repair file system errors (don't forget to choose your main hard drive)

- Click on Verify Disk and then, if asked to fix problems, on Repair Disk

- After this, click on Verify Disk Permissions and then on Repair Disk Permissions

- After the process is finished, shut down your Mac and turn it back on after about 30 seconds

Apart from that, take a look at this Apple article and follow the instructions on Resetting NVRAM shown there: How to Reset NVRAM on your Mac - Apple Support

Try resetting the System Management Controller: https://support.apple.com/en-us/HT201295

Hope this helps!

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Answer 2

Lexiepex

Level 6

14,102 points

Aug 28, 2015 3:40 AM in response to qarlo

Do you have an Antivirus app installed?

If so, which one?

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Answer 3

qarlo Author

Level 1

0 points

Aug 28, 2015 4:37 AM in response to Lexiepex

No, I don't have any Antivirus installed

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Answer 4

Linc Davis

Level 10

209,547 points

Aug 28, 2015 8:16 AM in response to qarlo

Please disconnect the external storage device and see whether the panics stop.

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Answer 5

qarlo Author

Level 1

0 points

Aug 28, 2015 8:51 AM in response to Linc Davis

I did and it happened again:

in the last one this appears in the report:

*** Panic Report ***

panic(cpu 6 caller 0xffffff800adfe042): "Possible memory corruption: pmap_pv_remove(0xffffff8030cb3ea0,0x7fff7e02e000,0x2056a5, 0x80000002056a5024, 0xffffff81f7223b34, 0xfffffeacf7fe2170): null pv_list!"@/SourceCache/xnu/xnu-2782.40.9/osfmk/i386/pmap_internal.h:768

Backtrace (CPU 6), Frame : Return Address

0xffffff81f72239f0 : 0xffffff800ad2ad21

0xffffff81f7223a70 : 0xffffff800adfe042

0xffffff81f7223b60 : 0xffffff800adfe775

0xffffff81f7223bc0 : 0xffffff800adac625

0xffffff81f7223cd0 : 0xffffff800ada22ac

0xffffff81f7223d00 : 0xffffff800ad4d5b7

0xffffff81f7223d40 : 0xffffff800b1c12e9

0xffffff81f7223db0 : 0xffffff800b1d8b12

0xffffff81f7223e30 : 0xffffff800b1d8fe7

0xffffff81f7223e70 : 0xffffff800ad27256

0xffffff81f7223ea0 : 0xffffff800ae1756e

0xffffff81f7223ec0 : 0xffffff800ae33c6f

BSD process name corresponding to current thread: system_profiler

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Answer 6

Linc Davis

Level 10

209,547 points

Aug 28, 2015 9:33 AM in response to qarlo

The startup drive is failing, or there is some other internal hardware fault.

Back up all data on the drive immediately if you don't already have a current backup. There are ways to back up a computer that isn't fully functional—ask if you need guidance.

Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.

Keeping your confidential data secure during hardware repair

Apple also recommends that you deauthorize a device in the iTunes Store before having it serviced.

*An SSD doesn't need to be zeroed.

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Answer 7

qarlo Author

Level 1

0 points

Aug 28, 2015 3:43 PM in response to Linc Davis

Are you completely sure is the startup drive or a hardware fault?

By the way, I managed to get a phone appointment with the Apple Store, so I'll see.

I regularly backed up the whole system with Time Machine on an external drive and as I said in the original question I already recovered from it once, very recently. So, I think I'm ok regarding backups.

Right now I booted the system in safe mode as D.Cohen suggested in the first reply and I didn't experience any crash, but till now they've been very unpredictable, so doesn't mean anything.

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