Kernel panics after upgrading to OS 10.8.5

Question

Kernel panics after upgrading to OS 10.8.5

I installed the 10.8.5 update on my early 20098 model Mac Pro. I thought it strange that I had to restart the computer twice after the update. But everything initially seemed to work fine after the update. But while I was updating the OS on my Macbook Pro, leaving my Mac Pro unattended for about 45 minutes, I came back to the Mac Pro and discovered that there was a kernal panic warning on the screen to the effect that the computer shut down because of a problem. I was given the option to restart the computer and it seemed to work normally for the next few hours. But when I checked on it the next morning, the same kernel panic message was displayed. I tried starting up in Safe Mode. As far as I can tell everything works well in safe mode, at least for the 3 or 4 hours I left it in that mode. Back in standard boot the kernel alerts started back again. This happens so far only when I am not actively using the computer but when it is left unattended. The computer is set to sleep after 1 hour.

An internet search suggested that there might be a conflict with a .kext file. There are only 5 .kext files loaded at startup that are non-Apple ones. I removed three of them since they were not critical for the use of my computer. But two of the .kext files are necessary for the proper function of the Mac Pro as it is configured. There is an "Accelsior.kext" file that is required for my OWC Mercury Accelsior PCI Express SSD card and two .kext files necessary for my CalDigit USB 3.0 Host Adapter (CalDigitFastIO.kext and CalDigitUSBxHCI.kext). Removing all but the CalDigit .kext files and the Accelsior file did not correct the problem. Next I simply re-installed the 10.8.5 updater. This did not correct the problem. I think I will go ahead and remove the CalDigit .kext files as a trial since I can operate the computer without USB 3.0 for a while. But beyond this I don't know what I should do next.

Here is a copy of the kernel report in Console that was generated with the last kernel panic:

Interval Since Last Panic Report: 48228 sec

Panics Since Last Report: 2

Anonymous UUID: AA7296BA-D418-A663-F1C9-85C15E3AF31F

Sat Sep 14 07:21:30 2013

Panic(CPU 2): Unresponsive processor (this CPU did not acknowledge interrupts) TLB state:0x0

RAX: 0x0000000000000000, RBX: 0xfffffeb920300044, RCX: 0xfffffed140000000, RDX: 0xfffffeb840000000

RSP: 0xffffff8260893ce0, RBP: 0xffffff8260893cf0, RSI: 0x0000000000000000, RDI: 0x00000000e0300044

R8: 0x0000000000000001, R9: 0x0000000000000003, R10: 0x00000000ffffffff, R11: 0xffffff8250c25047

R12: 0x0000000000030000, R13: 0x0000000000030044, R14: 0x0000000000000000, R15: 0x00000000e0300044

RFL: 0x0000000000000287, RIP: 0xffffff801f4afbf0, CS: 0x0000000000000008, SS: 0x0000000000000010

Backtrace (CPU 2), Frame : Return Address

0xffffff8256d56f50 : 0xffffff801f4bea71

0xffffff8256d56f80 : 0xffffff801f4b7f70

0xffffff8256d56fd0 : 0xffffff801f4cedbb

0xffffff8260893cf0 : 0xffffff7fa11b5ca3

0xffffff8260893d40 : 0xffffff7fa11d7ca8

0xffffff8260893d60 : 0xffffff7fa11b4a4f

0xffffff8260893d80 : 0xffffff7fa11c7e57

0xffffff8260893da0 : 0xffffff7f9fa590de

0xffffff8260893db0 : 0xffffff7f9fa565b8

0xffffff8260893dc0 : 0xffffff7f9fa590de

0xffffff8260893dd0 : 0xffffff7f9fa565b8

0xffffff8260893de0 : 0xffffff7f9fa590de

0xffffff8260893df0 : 0xffffff7f9fa565b8

0xffffff8260893e00 : 0xffffff7f9fa590de

0xffffff8260893e10 : 0xffffff7f9fa586fb

0xffffff8260893e30 : 0xffffff7f9fa58c6c

0xffffff8260893e80 : 0xffffff7f9fa51ccd

0xffffff8260893ec0 : 0xffffff801f844ea6

0xffffff8260893f40 : 0xffffff801f83f7a5

0xffffff8260893f60 : 0xffffff801f43e26e

0xffffff8260893fb0 : 0xffffff801f4b3257

Kernel Extensions in backtrace:

com.apple.iokit.IOPCIFamily(2.8)[2FAEA49C-EA4C-39C6-9203-FC022277A43C]@0xffffff 7f9fa4d000->0xffffff7f9fa75fff

com.apple.driver.AppleACPIPlatform(1.8)[209B2382-A61F-344C-8BBC-26331B9BA398]@0 xffffff7fa11ae000->0xffffff7fa1207fff

dependency: com.apple.iokit.IOACPIFamily(1.4)[A35915E8-C1B0-3C0F-81DF-5515BC9002FC]@0xfffff f7f9ff16000

dependency: com.apple.iokit.IOPCIFamily(2.8)[2FAEA49C-EA4C-39C6-9203-FC022277A43C]@0xffffff 7f9fa4d000

BSD process name corresponding to current thread: kernel_task

Mac OS version:

12F37

Kernel version:

Darwin Kernel Version 12.5.0: Mon Jul 29 16:33:49 PDT 2013; root:xnu-2050.48.11~1/RELEASE_X86_64

Kernel UUID: B1B58405-A2B2-3C44-B25D-495053D52AB5

Kernel slide: 0x000000001f200000

Kernel text base: 0xffffff801f400000

System model name: MacPro4,1 (Mac-F221BEC8)

System uptime in nanoseconds: 3715027731641

last loaded kext at 3672845027518: com.apple.driver.AppleUSBCDCECMData 4.1.23 (addr 0xffffff7fa174c000, size 28672)

last unloaded kext at 72992330627: com.apple.driver.AppleIntel8254XEthernet 3.1.1b1 (addr 0xffffff7f9ff7c000, size 69632)

loaded kexts:

com.owc.driver.Accelsior 1.0 b2

com.CalDigit.driver.CalDigitUSBxHCI 1.3.8a2

com.apple.driver.AppleUSBCDCECMData 4.1.23

com.apple.driver.MaxTranserSizeOverrideDriver 3.3.1

com.apple.driver.AppleBluetoothMultitouch 75.19

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.filesystems.autofs 3.0

com.apple.driver.AudioAUUC 1.60

com.apple.driver.IOBluetoothSCOAudioDriver 4.1.7f2

com.apple.driver.IOBluetoothA2DPAudioDriver 4.1.7f2

com.apple.iokit.IOBluetoothSerialManager 4.1.7f2

com.apple.driver.AGPM 100.13.12

com.apple.driver.AppleTyMCEDriver 1.0.2d2

com.apple.driver.AppleUSBCDCACMData 4.1.23

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AppleUSBDisplays 357

com.apple.driver.AppleUpstreamUserClient 3.5.12

com.apple.driver.AppleHDA 2.4.7fc2

com.apple.driver.AppleMCCSControl 1.1.11

com.apple.kext.AMDFramebuffer 8.1.6

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.driver.AppleMikeyDriver 2.4.7fc2

com.apple.AMDRadeonAccelerator 1.0.8

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.1.7f2

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleSMBusPCI 1.0.11d1

com.apple.driver.AppleUSBCDC 4.1.23

com.apple.driver.AppleLPC 1.6.3

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.Apple_iSight 4.0.1

com.apple.driver.ApplePolicyControl 3.4.5

com.apple.iokit.SCSITaskUserClient 3.5.6

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 34

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.3.5

com.apple.driver.AppleUSBHub 623.4.4

com.apple.driver.Intel82574L 2.3.0b5

com.apple.driver.AirPort.Brcm4331 615.20.17

com.apple.driver.AppleAHCIPort 2.6.6

com.apple.driver.AppleUSBOHCI 621.4.0

com.apple.driver.AppleFWOHCI 4.9.9

com.apple.driver.AppleUSBEHCI 621.4.6

com.apple.driver.AppleUSBUHCI 621.4.0

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleACPIButtons 1.8

com.apple.driver.AppleSMBIOS 1.9

com.apple.driver.AppleACPIEC 1.8

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 214.0.0

com.apple.nke.applicationfirewall 4.0.39

com.apple.security.quarantine 2.1

com.apple.driver.AppleIntelCPUPowerManagement 214.0.0

com.apple.iokit.IOSCSIBlockCommandsDevice 3.5.6

com.apple.iokit.IOUSBMassStorageClass 3.5.2

com.apple.driver.IOBluetoothHIDDriver 4.1.7f2

com.apple.driver.AppleMultitouchDriver 237.4

com.apple.kext.triggers 1.0

com.apple.iokit.IOSerialFamily 10.0.6

com.apple.driver.AppleUSBCDCACMControl 4.1.23

com.apple.driver.DspFuncLib 2.4.7fc2

com.apple.iokit.IOAudioFamily 1.9.2fc7

com.apple.kext.OSvKernDSPLib 1.12

com.apple.iokit.IOSurface 86.0.4

com.apple.iokit.IOAcceleratorFamily 74.15

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.1.7f2

com.apple.driver.AppleSMBusController 1.0.11d1

com.apple.iokit.IOBluetoothFamily 4.1.7f2

com.apple.driver.AppleHDAController 2.4.7fc2

com.apple.iokit.IOHDAFamily 2.4.7fc2

com.apple.kext.AMD5000Controller 8.1.6

com.apple.kext.AMDSupport 8.1.6

com.apple.driver.AppleSMC 3.1.5d4

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 5.4.1d11

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.driver.AppleGraphicsControl 3.4.5

com.apple.iokit.IONDRVSupport 2.3.7

com.apple.iokit.IOGraphicsFamily 2.3.7

com.apple.driver.AppleUSBHIDMouse 175.8

com.apple.driver.AppleHIDMouse 175.8

com.apple.driver.AppleUSBHIDKeyboard 170.2.4

com.apple.driver.AppleHIDKeyboard 170.2.4

com.apple.iokit.IOUSBHIDDriver 623.4.0

com.apple.driver.AppleUSBMergeNub 621.4.6

com.apple.driver.AppleUSBComposite 621.4.0

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.6

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOAHCISerialATAPI 2.5.5

com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.6

com.apple.iokit.IOUSBUserClient 630.4.4

com.apple.iokit.IO80211Family 530.5

com.apple.iokit.IONetworkingFamily 3.0

com.apple.iokit.IOAHCIFamily 2.5.1

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IOUSBFamily 630.4.5

com.apple.driver.AppleEFINVRAM 2.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOHIDFamily 1.8.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 220.3

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.DiskImages 345

com.apple.iokit.IOStorageFamily 1.8

com.apple.driver.AppleKeyStore 28.21

com.apple.driver.AppleACPIPlatform 1.8

com.apple.iokit.IOPCIFamily 2.8

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

panic(cpu 10 caller 0xffffff801f49e54b): "TLB invalidation IPI timeout: " "CPU(s) failed to respond to interrupts, unresponsive CPU bitmap: 0x4, NMIPI acks: orig: 0x0, now: 0x1"@/SourceCache/xnu/xnu-2050.48.11/osfmk/x86_64/pmap.c:2343

Backtrace (CPU 10), Frame : Return Address

0xffffff82608bad10 : 0xffffff801f41d636

0xffffff82608bad80 : 0xffffff801f49e54b

0xffffff82608bae00 : 0xffffff801f4a2d60

0xffffff82608baec0 : 0xffffff801f4a3595

0xffffff82608baf10 : 0xffffff801f46722c

0xffffff82608bb000 : 0xffffff801f46b100

0xffffff82608bb030 : 0xffffff801f465bff

0xffffff82608bb060 : 0xffffff801f42486e

0xffffff82608bb080 : 0xffffff801f82b53d

0xffffff82608bb0a0 : 0xffffff7f9f9f9e9d

0xffffff82608bb0d0 : 0xffffff7f9f9fc557

0xffffff82608bb120 : 0xffffff7f9f9fa052

0xffffff82608bb160 : 0xffffff7f9f9fab16

0xffffff82608bb320 : 0xffffff7f9f9f590f

0xffffff82608bb4d0 : 0xffffff801f892284

0xffffff82608bb520 : 0xffffff801f4e01c7

0xffffff82608bbd80 : 0xffffff801f4e0e1c

0xffffff82608bbf50 : 0xffffff801f7e97ba

0xffffff82608bbfb0 : 0xffffff801f4cf453

Kernel Extensions in backtrace:

com.apple.security.sandbox(220.3)[B66761E0-9412-3C2E-AA8F-17D15E7A3E3D]@0xfffff f7f9f9f3000->0xffffff7f9fa03fff

dependency: com.apple.kext.AppleMatch(1.0.0d1)[327C619E-5CC2-311F-8B0C-F9D508BFD5B0]@0xffff ff7f9f9ef000

BSD process name corresponding to current thread: mdworker

System Profile:

Model: MacPro4,1, BootROM MP41.0081.B07, 8 processors, Quad-Core Intel Xeon, 2.66 GHz, 20 GB, SMC 1.39f5

Graphics: ATI Radeon HD 5770, ATI Radeon HD 5770, PCIe, 1024 MB

Memory Module: DIMM 1, 4 GB, DDR3 ECC, 1066 MHz, 0x85F7, 0x463732353155363746393333334700000000

Memory Module: DIMM 2, 4 GB, DDR3 ECC, 1066 MHz, 0x85F7, 0x463732353155363746393333334700000000

Memory Module: DIMM 3, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431

Memory Module: DIMM 4, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431

Memory Module: DIMM 5, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431

Memory Module: DIMM 6, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431

Memory Module: DIMM 7, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431

Memory Module: DIMM 8, 2 GB, DDR3 ECC, 1066 MHz, 0x802C, 0x31384A53463235363732415A2D3147314431

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8E), Broadcom BCM43xx 1.0 (5.106.98.100.17)

Bluetooth: Version 4.1.7f2 12718, 3 service, 21 devices, 3 incoming serial ports

Network Service: Ethernet 1, Ethernet, en0

PCI Card: ATI Radeon HD 5770, sppci_displaycontroller, Slot-1

PCI Card: ATI Radeon HD 5770, ATY,HoolockParent, Slot-1

PCI Card: pci1033,35, sppci_usbopenhost, Slot-2@7,1,0

PCI Card: pci1033,35, sppci_usbopenhost, Slot-2@7,1,1

PCI Card: pci1033,e0, USB Enhanced Host Controller, Slot-2@7,1,2

PCI Card: pci104c,8025, sppci_ieee1394openhci, Slot-2@7,2,0

PCI Card: CalDigit USB3 Adapter, Slot-4

PCI Card: pci1b4b,9230, sppci_ahci, Slot-3

Serial ATA Device: HL-DT-ST DVD-RW GH41N

Serial ATA Device: PIONEER DVD-RW DVR-218L

Serial ATA Device: WDC WD2002FAEX-007BA0, 2 TB

Serial ATA Device: Hitachi HDT721010SLA360, 1 TB

Serial ATA Device: WDC WD2002FAEX-007BA0, 2 TB

Serial ATA Device: MARVELL Raid VD 0, 239.9 GB

Serial ATA Device: MARVELL VIRTUALL

USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfd100000 / 2

USB Device: Apple Keyboard, apple_vendor_id, 0x0220, 0xfd120000 / 3

USB Device: Back-UPS RS 1500 LCD FW:839.H7 .D USB FW:H7, 0x051d (American Power Conversion), 0x0002, 0x01100000 / 2

USB Device: USB Modem, 0x0803 (Zoom Telephonics, Inc.), 0x3095, 0x21100000 / 2

USB Device: hub_device, 0x0451 (Texas Instruments), 0x2046, 0x1a200000 / 2

USB Device: Apple Optical USB Mouse, apple_vendor_id, 0x0304, 0x1a240000 / 3

USB Device: hub_device, apple_vendor_id, 0x9101, 0x3d100000 / 2

USB Device: hub_device, apple_vendor_id, 0x9119, 0x3d110000 / 3

USB Device: Studio Display, apple_vendor_id, 0x9219, 0x3d113000 / 4

USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x5a100000 / 2

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0x5a110000 / 3

USB Device: Transcend, 0x8564, 0x4000, 0x04200000 / 2

FireWire Device: unknown_device, unknown_speed

FireWire Device: built-in_hub, 800mbit_speed

FireWire Device: iSight, Apple Computer, Inc., 200mbit_speed

FireWire Device: unknown_device, unknown_speed

Thanks for any input or help. Unless there is a simple fix I think I will have to revert back to my pre-update backup copy of 10.8.4

John

Mac Pro

Posted on Sep 14, 2013 7:06 AM

Reply

Answer 1

Sep 14, 2013 7:08 AM in response to John Baughman

com.owc.driver.Accelsior 1.0 b2

com.CalDigit.driver.CalDigitUSBxHCI 1.3.8a2

One or both could be causing the kernel panics.

Reply

Answer 2

Sep 14, 2013 7:37 AM in response to Carolyn Samit

Well, I just restarted the computer after removing the two CalDigit files associated with the USB 3 card. I'll have to give it a few hours to see what happens. If the kernel panics cease that will explain the problem. But if not, I don't know an easy way to exclude an incompatibility with the Accelsior SSD card. I do have a backup to a hard drive that still has 10.8.4 installed. I don't want to lose that in case I have to revert to it. I suppose I could clone my SSD to another hard drive, update it to 10.8.5 and see what happens if I let the Accelsior files load and what happens if I reboot after removing them. This would be a long troubleshooting process that might take more than 24 hours.

John

Reply

Answer 3

Barney-15E

Level 10

112,668 points

Sep 14, 2013 7:43 AM in response to John Baughman

As Carolyn points out, it might be incompatible kernel extensions, but it sounds like a hardware problem. Might be RAM.

Found a similar thread on Ars Technica: http://arstechnica.com/civis/viewtopic.php?f=19&t=1173233

Turns out he needed to clean the dust out of his Mac Pro.

Also, download and run Rember. It runs memtest, which is the only known useful memory test.

Reply

Answer 4

Sep 14, 2013 8:20 AM in response to Barney-15E

Bad RAM is a good thought. I just added an extra 8GB RAM to the computer about a month ago. But it would be a strange coincidence that it would first manifest itself almost immediately after an OS update. And in somewhat limited testing the problem has not occurred while running OS 10.8.4 on a backup hard drive or while in safe boot mode. I'll give Rember a shot. Thanks for your comments and suggestions. I'll report back once this has been thoroughly investigated and hopefully, resolved.

Reply

Answer 5

Barney-15E

Level 10

112,668 points

Sep 14, 2013 8:26 AM in response to John Baughman

If you don't see it in Safe Mode, then it is likely the kernel extensions which Carolyn pointed to.

They may need to be updated for 10.8.5.

Reply

Answer 6

Sep 14, 2013 10:20 AM in response to John Baughman

John: I have the same problem... and an OWC Accelsior card! As I recall, the software from OWC was to deal with sleep issues, and like you, my kernel panics are all when the system sleeps. My guess is that OWC needs to look at this issue... quickly!

I am going to email their support folks.

Glenn

Reply

Answer 7

Sep 14, 2013 12:57 PM in response to John Baughman

Talked with OWC support and, at their suggestion, reinstalled the driver. Problem persists with a kernel panic on every wake-from-sleep. Pretty sure this is an Accelsior issue since my other Mac Pros don't have a problem nor do they have Accelsior cards.

Glenn

Reply

Answer 8

Sep 14, 2013 1:00 PM in response to John Baughman

We are working on fully confirming the issue and providing resolution. In the meantime we recommend remaining on or returning to OS 10.8.4. Thank you.

Reply

Answer 9

Sep 14, 2013 1:36 PM in response to Glenn Kroeger

I want to further add -

We have tested with 10.8.5 and had not encountered any issues. We also have field reports of issue free operation. We will be expanding test scenarios to determine if specific Mac Pro model version or possible interaction with other installed card such as USB 3.0 Pcie. First hand able to confirm no issue with official distributed 10.8.5 with Accelsior on 2010 Mac Pro 5,1. This system has no other Pcie other than video card.

Will have greater details with next 24-48 hours.

And, again, in meantime recommend sticking with 10.8.4..

Thank you.

Reply

Answer 10

Sep 14, 2013 1:43 PM in response to OWC Larry

Larry:

Thanks for the update and testing. I am on a Mac Pro 5,1 with no other Pcie cards other than the Accelsior and no other peripherals other than 2 WD hard drives and one Samsung 830SSD. I am cloning my boot partition right now and will remove the Accelsior to see if the problem persists.

Glenn

Reply

Answer 11

Sep 14, 2013 1:47 PM in response to OWC Larry

I have both the Accelsior card AND the CalDigit USB 3 card installed. Even when I removed the .kext files for the CalDigit USB card, I have a kernel panic each time my Mac Pro 2 x 2.66 GHz Quad-Core early 2009 model (MacPro4,1) wakes from sleep. I don't know if this is an issue related to both cards or not.

Reply

Answer 12

Sep 14, 2013 1:51 PM in response to Glenn Kroeger

Thanks for reporting your issues and your discussion with OWC Larrry. I'm relieved to know I'm not the only one with this problem. I wonder if a temporary work around would be to turn off sleep mode. This assumes that this is the only thing that triggers the kernel panics. Before your report, I thought it was random. But I can easily reproduce the problem by entering "Sleep" from the Apple menu and then trying to wake the computer up. Instant kernal panic.

In my case I also have the CalDigit USB 3 card installed which OWC suggests could be a factor.

Reply

Answer 13

Sep 14, 2013 1:54 PM in response to John Baughman

John:

I have turned system sleep to "never" for right now. The system works fine with no panics except when waking from sleep, and like you, I can reproduce the problem consistently.

Glenn

Reply

Answer 14

Sep 14, 2013 2:28 PM in response to Glenn Kroeger

Glenn,

Since you do not have the CalDigit USB 3 card installed and we have the exact same inducible kernel panics after update to 10.8.5, I think we can rule out a role for the CalDigit card in this matter. Apparently, according to Larry at OWC, he and other users are not experiencing problems with the Accelsior card after the update. This suggests it is not a universal problem but it affects only Mac Pros running certain software or hardware add-ons. It would be interesting to know in what other regards your system resembles mine in some unique fashion that might explain this problem.

You have the MacPro 5,1 while I have the MacPro 4,1 so we know that it is not isolated to just one model of the Mac Pro. I have 20GB RAM installed with a module in each of the slots. I have SuperDrives installed in both bays. I have all 4 internal HD bays occupied. The Rember app indicates that there are no problems with my RAM. I have multiple external FW HDs, a Zoom USB modem, and 2 monitors attached to the Mac. It is hard to imagine any of these features as being related to the problem at hand. I might try removing all attached devices to see if this makes a difference. Meanwhile I'll await a follow up report from OWC.

John

Reply

Answer 15

Eroan

Level 1

0 points

Sep 15, 2013 4:41 AM in response to John Baughman

Same issue for me on Mac Pro 5.1 with OWC Mercury Accelsior... it crashes on awakening from sleeping mode ! Thanks for finding quickly a solution !

Reply