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krenders Author

Level 1

27 points

iMac crashes when powering off external Thunderbolt drive

Hi,

I have an external LaCie d2 USB 3.0 drive that is connect to my iMac (27-inch, Mid 2011, 3,1 GHz Intel Core i5, 12 GB RAM) through Thunderbolt. Whenever I power off the drive by pushing the power button (yes I did verify: all partitions have been ejected correctly before in the Finder and verified in Disk Utility), the iMac crashes. It starts up again, displays a screen stating the computer was not shut down properly and then immediately restarts. After that it boots up fine.

This started occurring after having installed 10.10.2 Beta. I did file a report with Apple. As this was beta software I decided to completely reinstall the iMac from scratch (a complete fresh install, just imported my documents manually after) and everything was working fine again (10.10.1). Boom, after having updated 10.10.2 yesterday the problem is back.

I did manage to find a workaround: when I connect the drive through a UBS cable it works fine. Conclusion: this seems to be caused by a Thunderbolt related update in 10.10.2.

Question: is any one else with an external Thunderbolt drive experiencing this and has perhaps found a fix?

Thanks,

Kurt

Wed Jan 28 16:30:36 2015

*** Panic Report ***

panic(cpu 0 caller 0xffffff800341a46e): Kernel trap at 0xffffff80038e9774, type 14=page fault, registers:

CR0: 0x000000008001003b, CR2: 0x0000000000000000, CR3: 0x00000000066ee000, CR4: 0x00000000000626e0

RAX: 0x0000000000070001, RBX: 0xffffff8036919c00, RCX: 0x8883c87675b70011, RDX: 0xffffff81541e9088

RSP: 0xffffff817bb0be90, RBP: 0xffffff817bb0be90, RSI: 0xffffff81541e9068, RDI: 0x0000000000000000

R8: 0x0000000000987482, R9: 0xffffff8003a95740, R10: 0x000017d7912af429, R11: 0x000017d790927fa7

R12: 0xffffff817bb0bf50, R13: 0xffffff7f85328044, R14: 0xffffff7f8533e978, R15: 0xffffff8003ad66c0

RFL: 0x0000000000010202, RIP: 0xffffff80038e9774, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0x0000000000000000, Error code: 0x0000000000000000, Fault CPU: 0x0

Backtrace (CPU 0), Frame : Return Address

0xffffff817bb0bb40 : 0xffffff800332fe41

0xffffff817bb0bbc0 : 0xffffff800341a46e

0xffffff817bb0bd80 : 0xffffff8003436683

0xffffff817bb0bda0 : 0xffffff80038e9774

0xffffff817bb0be90 : 0xffffff7f85328267

0xffffff817bb0beb0 : 0xffffff7f8532bad7

0xffffff817bb0bee0 : 0xffffff7f853281ed

0xffffff817bb0bf00 : 0xffffff80033624f9

0xffffff817bb0bfb0 : 0xffffff8003414dd7

Kernel Extensions in backtrace:

com.apple.driver.AppleAHCIPort(3.1)[93E1D2EC-50EE-3340-9676-0EA1E0B1AD45]@0xfff fff7f85324000->0xffffff7f8533efff

dependency: com.apple.iokit.IOAHCIFamily(2.7.5)[DAF0353B-16D5-385A-A0F3-FD5CF3BA07F2]@0xfff fff7f84706000

dependency: com.apple.iokit.IOPCIFamily(2.9)[56AD16B5-4F29-3F74-93E7-D492B3966DE2]@0xffffff 7f83b24000

BSD process name corresponding to current thread: kernel_task

Mac OS version:

14C109

Kernel version:

Darwin Kernel Version 14.1.0: Mon Dec 22 23:10:38 PST 2014; root:xnu-2782.10.72~2/RELEASE_X86_64

Kernel UUID: DCF5C2D5-16AE-37F5-B2BE-ED127048DFF5

Kernel slide: 0x0000000003000000

Kernel text base: 0xffffff8003200000

__HIB text base: 0xffffff8003100000

System model name: iMac12,2

iMac, Mac OS X (10.2.x) , null

Posted on Jan 28, 2015 7:50 AM

Top-ranking reply

odie1234

Level 1

0 points

Posted on Jan 28, 2015 11:59 AM

I have the same issue. Disk is ejected properly and I go to power it off and I get a re-boot and then the white screen.

View in context

54 replies

Mar 24, 2015 7:11 PM in response to sunithaya

I finally was able to talk to an Apple representative on the OS X Applications side. He would not acknowledge there is any problem and said that there is no record of any such problem even though I directed him to this thread. When I asked if I could take the computer to an Apple Store to try to solve the problem he actually said not to bother because they would not be able to do anything except a cursory trouble shooting which they could not do anyway since my iMac does not boot. Also he mentioned that my iMac is out of warranty (3 yrs old!) so no-go. ??? So my computer dies due to a blatant software screw-up and this is the response? I have no more words.

Before this person I "chatted" online with another service person who kept saying, "I understand where you are coming from" and finally tried to send me to a sales person to get me into buying a new unit! Thanks Apple, I'll have a grapefruit instead 😠, at least its honestly bittersweet.

Mar 24, 2015 11:56 PM in response to sunithaya

Apple has changed a lot. It's no longer user friendly if they don't remedy this problem. Send your issue to it media and consumer organisations.

The least Apple should do is tell people how to handle the new thunderbolt devices, what to do and what not to do. If they don't they are liable.

Apr 9, 2015 11:35 PM in response to Appeltjehehe

10.10.3 apparently solves the problem.

At least, I was able to shut down my disk and nothing wrong happened.

Only tried once, though. But looks promising.

:-)

philoo84

Level 1

20 points

Apr 9, 2015 11:40 PM in response to NewBartleby

Hi,

10.10.3 works 🙂

They fix it Thank's.

Apr 10, 2015 12:51 AM in response to NewBartleby

That is promising. And how does the sleep function perform? No 'disc not properly ejected' errors?

I've checked myself, and indeed shutting down the external drives will not cause a kernel panic.

I'm still a bit worried about the sleep function. Whenever I put my Mac Pro (black) to sleep the fan stops working and that means that the mac heats up, not really alarmingly but still too hot for a mac that is in sleep and nothing is set up to work in power nap mode.

Apr 12, 2015 7:45 AM in response to NewBartleby

Confirmed as solved for me too with OS X 10.10.3 update.

Vapresto

Level 1

22 points

Apr 21, 2015 9:10 AM in response to krenders

Oh great...

So I now have to choose between this problem and screwing up accessing and editing close to 2 million photos in various Aperture libraries, as a result of the embedded crappy Photos App, in 10.10.3?

Arghhh....

Anyone got any recommendations for a good PC / OS Platform, that isn't made by Apple and is good for professional photographers (now Apple don't want anything to do with us any more)?

Apr 21, 2015 11:26 AM in response to Vapresto

Don't use Photos. Continue using Aperture.

krenders Author

Level 1

27 points

Apr 22, 2015 5:21 AM in response to krenders

Having gotten my iMac back (unrelated to this discussion, the graphics card was defective and has been replaced under the AMD Radeon 6970M Video Card Replacement Program - thanks Apple!) I can add that the original problem of this discussion has been resolved with 10.10.3.

iMac crashes when powering off external Thunderbolt drive