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User profile for user: drengfer
drengfer Author
User level: Level 1
42 points

kernel_task panics under Yosemite

I've been running Yosemite on my pretty vanilla Mini with no issues. Recently upgraded my MacBook Air to Yosemite, and it's unstable. Frequent, unpredictable kernel panics. I have removed most of my potentially-suspicious startup items (Boingo, TeamViewer), but still experience occasional, random restarts. Any insights would be deeply appreciated.


Here's a recent and representative panic report (also happened earlier today, with similar panic report):


Anonymous UUID: C88B8DCF-D2F6-CA7E-B7C6-8F4CFF00CE18


Fri Jan 9 17:47:52 2015


*** Panic Report ***

panic(cpu 2 caller 0xffffff8001fc23b5): "vm_object_compressor_pager_create(0xffffff80026aaf58): " "object size 0xfffffffffffff000 >= 0xffffffff000\n"@/SourceCache/xnu/xnu-2782.1.97/osfmk/vm/vm_object.c:4835

Backtrace (CPU 2), Frame : Return Address

0xffffff809be43e50 : 0xffffff8001f3a811

0xffffff809be43ed0 : 0xffffff8001fc23b5

0xffffff809be43f10 : 0xffffff8001fd35c6

0xffffff809be43fb0 : 0xffffff80020192c7


BSD process name corresponding to current thread: kernel_task


Mac OS version:

14B25


Kernel version:

Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64

Kernel UUID: 89E10306-BC78-3A3B-955C-7C4922577E61

Kernel slide: 0x0000000001c00000

Kernel text base: 0xffffff8001e00000

__HIB text base: 0xffffff8001d00000

System model name: MacBookAir4,1 (Mac-C08A6BB70A942AC2)


System uptime in nanoseconds: 2716946802517

last loaded kext at 2054324861518: com.apple.filesystems.smbfs 3.0.0 (addr 0xffffff7f846c3000, size 389120)

last unloaded kext at 308700699793: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f84651000, size 61440)

loaded kexts:

com.apple.filesystems.smbfs 3.0.0

com.apple.filesystems.afpfs 11.0

com.apple.nke.asp-tcp 8.0.0

com.apple.driver.AppleBluetoothMultitouch 85.3

com.apple.driver.AudioAUUC 1.70

com.apple.filesystems.ntfs 3.12

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.ApplePlatformEnabler 2.1.0d1

com.apple.driver.AGPM 100.14.37

com.apple.filesystems.autofs 3.0

com.apple.iokit.IOBluetoothSerialManager 4.3.1f2

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AppleHDA 267.0

com.apple.driver.AppleUpstreamUserClient 3.6.1

com.apple.driver.AppleMikeyDriver 267.0

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.1f2

com.apple.driver.AppleThunderboltIP 2.0.2

com.apple.driver.AppleBacklight 170.4.12

com.apple.driver.AppleMCCSControl 1.2.10

com.apple.driver.AppleSMCLMU 2.0.4d1

com.apple.driver.AppleLPC 1.7.3

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleHWAccess 1

com.apple.driver.AppleHV 1

com.apple.driver.AppleIntelHD3000Graphics 10.0.0

com.apple.driver.AppleIntelSNBGraphicsFB 10.0.0

com.apple.driver.AppleUSBTCButtons 240.2

com.apple.driver.AppleUSBTCKeyboard 240.2

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 35

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.6.5

com.apple.driver.AirPort.Brcm4331 800.20.24

com.apple.driver.AppleUSBHub 705.4.1

com.apple.driver.AppleAHCIPort 3.0.7

com.apple.driver.AppleUSBEHCI 705.4.14

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleACPIButtons 3.1

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 3.1

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0

com.apple.nke.applicationfirewall 161

com.apple.security.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleIntelCPUPowerManagement 218.0.0

com.apple.security.SecureRemotePassword 1.0

com.apple.driver.IOBluetoothHIDDriver 4.3.1f2

com.apple.driver.AppleMultitouchDriver 260.30

com.apple.AppleGraphicsDeviceControl 3.7.21

com.apple.kext.triggers 1.0

com.apple.iokit.IOSerialFamily 11

com.apple.driver.DspFuncLib 267.0

com.apple.kext.OSvKernDSPLib 1.15

com.apple.iokit.IOAudioFamily 200.6

com.apple.vecLib.kext 1.2.0

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.1f2

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.driver.AppleSMBusController 1.0.13d1

com.apple.driver.AppleSMBusPCI 1.0.12d1

com.apple.iokit.IOUSBUserClient 705.4.0

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 5.8.0d49

com.apple.iokit.IOSurface 97

com.apple.iokit.IOBluetoothFamily 4.3.1f2

com.apple.driver.AppleSMC 3.1.9

com.apple.driver.AppleHDAController 267.0

com.apple.iokit.IOHDAFamily 267.0

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.0

com.apple.driver.AppleUSBMultitouch 245.2

com.apple.iokit.IOUSBHIDDriver 705.4.0

com.apple.driver.AppleUSBMergeNub 705.4.0

com.apple.driver.AppleUSBComposite 705.4.9

com.apple.driver.AppleThunderboltDPInAdapter 4.0.6

com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6

com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

com.apple.driver.AppleThunderboltNHI 3.1.7

com.apple.iokit.IOThunderboltFamily 4.2.1

com.apple.iokit.IO80211Family 700.52

com.apple.iokit.IONetworkingFamily 3.2

com.apple.iokit.IOAHCIFamily 2.7.0

com.apple.iokit.IOUSBFamily 705.4.14

com.apple.driver.AppleEFINVRAM 2.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.DiskImages 389.1

com.apple.iokit.IOStorageFamily 2.0

com.apple.iokit.IOReportFamily 31

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 3.1

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.Libm 1

com.apple.kec.pthread 1

com.apple.kec.corecrypto 1.0

Model: MacBookAir4,1, BootROM MBA41.0077.B11, 2 processors, Intel Core i7, 1.8 GHz, 4 GB, SMC 1.74f4

Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 384 MB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xE9), Broadcom BCM43xx 1.0 (5.106.98.100.24)

Bluetooth: Version 4.3.1f2 15015, 3 services, 27 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en0

Serial ATA Device: APPLE SSD TS256C, 251 GB

USB Device: FaceTime Camera (Built-in)

USB Device: Hub

USB Device: Apple Internal Keyboard / Trackpad

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

USB Device: Hub

Thunderbolt Bus: MacBook Air, Apple Inc., 8.1

MacBook Air, OS X Mavericks (10.9.5)

Posted on Jan 20, 2015 2:49 PM

Reply
34 replies
User profile for user: Linc Davis
Linc Davis
User level: Level 10
209,547 points

Jan 20, 2015 7:56 PM in response to drengfer

You can't, of course, replace the memory in that model.

Make a "Genius" appointment at an Apple Store, or go to another authorized service provider. You may have to leave the machine there for several days.

Back up all data on the internal drive(s) before you hand over your computer to anyone. There are ways to back up a computer that isn't fully functional—ask if you need guidance.

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.

Reply
User profile for user: drengfer
drengfer Author
User level: Level 1
42 points

Jan 21, 2015 9:45 AM in response to Linc Davis

Grrr. Thanks, Linc (and Kappy) for the insights. Have to admit that I'm still struck by the coincidence that these failures only started after upgrading to 10.10 - machine was rock-solid before that.


Before I entrust my baby to Apple, just curious about your thoughts regarding (1) what I should communicate to them and (2) what I should expect them to (be able to) do in response. Should I collect several of the panic reports, or print out this one, or ??? On the response front, are they likely to send out the machine for a hardware repair or just throw up their arms? The machine is several years old and out of any warranty. I presume I'll have an opportunity to understand the potential costs involved in the repair?


Thanks for your help.


Doug

Reply
User profile for user: drengfer
drengfer Author
User level: Level 1
42 points

Jan 29, 2015 12:10 PM in response to drengfer

Okay, here is an update. Sorry it's taken some time to report, but we've had houseguests and, as you'll see, I've encountered some bumps along the way.


Short story: I've not yet been to the Genius Bar (GB).


Long story: While preparing for my GB appt I ran Disk Utility, which reported that my disk was too fouled up for it to deal with. So, I purchased DiskWarrior and, after doing a full backup of my disk, successfully (1) cleaned up my directories, and (2) repaired my disk permissions. Now Apple's Disk Utility runs and reports no errors (completes with a 0 result code). I've run Apple Hardware Test (extended; this is the appropriate tool for my vintage of machine) - "no trouble found". In the midst of this I did upgrade to 10.10.2 (sorry - changed more than one variable in the problem space). I continue to get the (same) kernel panics when running in normal boot mode. When I run in Safe mode, I do not get the panics (at least not within 24 hours of boot; normally I would see a panic within that timeframe). I do, however, get system hangs: mouse tracks but the system is otherwise completely non-responsive - can't drop any menus; system doesn't respond to force-quit key sequence; I'm forced to hard-reset and reboot the machine. Best I can tell this happens about 1-1/2 days after boot. Looking at the system logs I see the following message sequence filling the console log:


1/29/15 12:17:06.627 PM com.apple.xpc.launchd[1]: (com.apple.watchdogd) Service only ran for 0 seconds. Pushing respawn out by 10 seconds.

1/29/15 12:17:16.639 PM watchdogd[10125]: [watchdog_daemon] @( wd_watchdog_open) - IOIteratorNext failed (kr=0)

1/29/15 12:17:16.640 PM watchdogd[10125]: [watchdog_daemon] @( wd_daemon_init) - could not initialize the hardware watchdog

1/29/15 12:17:16.640 PM watchdogd[10125]: [watchdog_daemon] @( main) - cannot initialize the watchdog service


Looking at the logs right now I see that that message is in there during this (safe) boot cycle, every 10 seconds. So, maybe a red herring as regards the hang?


So....given that the panics don't occur in Safe mode, have persisted after 10.10.2 upgrade, and Hardware Test is not turning up any hardware issues, I'm thinking that it may be worth my time to play with adding extensions under Safe mode until I see the panic, rather than going to GB right now.


Thoughts / suggestions?


Thanks!!!!


Doug

Reply
User profile for user: drengfer
drengfer Author
User level: Level 1
42 points

Feb 3, 2015 2:24 PM in response to drengfer

Update post Genius Bar.


They kept the machine for a couple of days and were not able to reproduce the panic while running under a " known good" installation of Yosemite. Their hardware testing turned up nothing. Their recommendation: reformat the entire SSD (MacOS and Windows partitions) and re-install a clean version of Yosemite. I balked, because I can't see why we would wipe the Windows partition (I'm running bootcamp, rather than any virtualized configuration) - that would materially increase my recovery time.


Since then I have re-installed Yosemite from my recovery disk (without reformatting the partition first). The machine ran fine for several days, so I was feeling pretty good. Earlier today, though, I got another kernel panic, same basic parameters as above.


So...questions to the smart folks here:


* Do you agree that a clean install is the next step?

* Assuming "yes" to that questions, how do you recommend I go about doing a clean re-install of Yosemite? (Shouldn't I just be able to use Disk Utility to re-format the MacOS partition and re-install, followed by recovering my data from backup(s)?)

Reply
User profile for user: drengfer
drengfer Author
User level: Level 1
42 points

Feb 16, 2015 2:59 PM in response to drengfer

I know you all are on pins and needles, so here's another update.


I remain skeptical of the need for a clean install, or at least I'm reluctant to do so without a clear diagnosis. So, I continue to work the problem. Ran the machine in Safe Mode for several days with no issues.


Now running in Normal Mode without loading any login items. As you've seen from the dumps, this is a relatively vanilla machine, but trying to be cautious and thorough. Keeping an eye on memory use in Activity Monitor, I see that Image Capture Extension (ICE) occasionally runs amok and chews up GB of memory. I have also stopped using Firefox (35.x.x), since it seems to be a bit of a memory hog. So....while I'm slowly going through the process of re-adding my login items (so far I've re-added Skype and Dropbox; still to come: google drive, firefox, and filestring), I'm also keeping a close eye on ICE. So far, I've seen it go bonkers once. Killed it and it re-started itself and then behaved.


I've been able to run for many days at a time without any panics, so, while it's difficult to prove a negative, my working hypothesis right now is that ICE (perhaps in league with Firefox or FileString?) is the culprit. I have yet to find the 'trigger' that causes ICE to run amok; I'm hoping it's Firefox related.


I'll keep y'all posted.

Reply
User profile for user: TravisIsCool
TravisIsCool
User level: Level 1
0 points

Feb 23, 2015 7:22 PM in response to drengfer

If it's any consolation, it is no longer a one-off experience. I had my system panic at the same spot tonight (a Mid-2011 Air on 10.10.2). I was not using my machine at the time. I left my bedroom with the screensaver on and came back to a rebooted machine.


*** Panic Report ***

panic(cpu 1 caller 0xffffff80015bc005): "vm_object_compressor_pager_create(0xffffff8001caaf68): " "object size 0xfffffffffffff000 >= 0xffffffff000\n"@/SourceCache/xnu/xnu-2782.10.72/osfmk/vm/vm_object.c:4835

Backtrace (CPU 1), Frame : Return Address

0xffffff809be6be50 : 0xffffff800152fe41

0xffffff809be6bed0 : 0xffffff80015bc005

0xffffff809be6bf10 : 0xffffff80015cd5a6

0xffffff809be6bfb0 : 0xffffff8001614dd7



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: 0x0000000001200000

Kernel text base: 0xffffff8001400000

__HIB text base: 0xffffff8001300000

System model name: MacBookAir4,2 (Mac-742912EFDBEE19B3)



System uptime in nanoseconds: 429395691071356

last loaded kext at 416910694798576: org.virtualbox.kext.VBoxNetAdp 4.3.22 (addr 0xffffff7f83db7000, size 28672)

last unloaded kext at 417105783530780: com.apple.driver.AppleWWANSupport1 3.0.0 (addr 0xffffff7f83db0000, size 28672)

loaded kexts:

org.virtualbox.kext.VBoxNetAdp 4.3.22

org.virtualbox.kext.VBoxNetFlt 4.3.22

org.virtualbox.kext.VBoxUSB 4.3.22

org.virtualbox.kext.VBoxDrv 4.3.22

com.avatron.AVExFramebuffer 1.7

net.sf.tuntaposx.tap 1.0

net.sf.tuntaposx.tun 1.0

com.avatron.AVExVideo 1.7

at.obdev.nke.LittleSnitch 4228

com.apple.filesystems.smbfs 3.0.0

com.apple.driver.AppleBluetoothMultitouch 85.3

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.ApplePlatformEnabler 2.1.7d1

com.apple.driver.AGPM 100.15.5

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.2f6

com.apple.filesystems.autofs 3.0

com.apple.iokit.IOBluetoothSerialManager 4.3.2f6

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.driver.AppleHDA 269.25

com.apple.driver.AppleMikeyDriver 269.25

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleUpstreamUserClient 3.6.1

com.apple.driver.AppleSMCLMU 2.0.7d0

com.apple.driver.AudioAUUC 1.70

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleHWAccess 1

com.apple.driver.AppleHV 1

com.apple.driver.AppleLPC 1.7.3

com.apple.driver.AppleThunderboltIP 2.0.2

com.apple.driver.AppleBacklight 170.5.0

com.apple.driver.AppleMCCSControl 1.2.11

com.apple.driver.AppleIntelHD3000Graphics 10.0.0

com.apple.driver.AppleIntelSNBGraphicsFB 10.0.0

com.apple.driver.AppleUSBEthernet 2.4.7

com.apple.driver.AppleUSBTCButtons 240.2

com.apple.driver.AppleUSBCardReader 3.5.1

com.apple.driver.AppleUSBTCKeyboard 240.2

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 35

com.apple.driver.XsanFilter 404

com.apple.driver.AppleUSBHub 705.4.2

com.apple.iokit.IOAHCIBlockStorage 2.7.0

com.apple.driver.AirPort.Brcm4331 800.20.24

com.apple.driver.AppleAHCIPort 3.1.0

com.apple.driver.AppleUSBEHCI 705.4.14

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleACPIButtons 3.1

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 3.1

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0

com.apple.nke.applicationfirewall 161

com.apple.security.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleIntelCPUPowerManagement 218.0.0

com.apple.driver.IOBluetoothHIDDriver 4.3.2f6

com.apple.driver.AppleMultitouchDriver 262.33.1

com.apple.driver.AppleUSBAudio 295.23

com.apple.AppleGraphicsDeviceControl 3.8.6

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.2f6

com.apple.kext.triggers 1.0

com.apple.iokit.IOSerialFamily 11

com.apple.driver.DspFuncLib 269.25

com.apple.kext.OSvKernDSPLib 1.15

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.AppleHDAController 269.25

com.apple.iokit.IOHDAFamily 269.25

com.apple.iokit.IOUSBUserClient 705.4.0

com.apple.iokit.IOSurface 97

com.apple.iokit.IOBluetoothFamily 4.3.2f6

com.apple.driver.AppleSMC 3.1.9

com.apple.driver.AppleSMBusPCI 1.0.12d1

com.apple.driver.IOPlatformPluginFamily 5.8.1d38

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.driver.AppleSMBusController 1.0.13d1

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.iokit.IOAudioFamily 203.3

com.apple.vecLib.kext 1.2.0

com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.3

com.apple.iokit.IOUSBMassStorageClass 3.7.1

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.3

com.apple.driver.AppleUSBMultitouch 245.2

com.apple.iokit.IOUSBHIDDriver 705.4.0

com.apple.driver.AppleUSBMergeNub 705.4.0

com.apple.driver.AppleUSBComposite 705.4.9

com.apple.driver.CoreStorage 471.10.6

com.apple.driver.AppleThunderboltDPInAdapter 4.0.6

com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6

com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

com.apple.driver.AppleThunderboltNHI 3.1.7

com.apple.iokit.IOThunderboltFamily 4.2.1

com.apple.iokit.IO80211Family 710.55

com.apple.iokit.IONetworkingFamily 3.2

com.apple.iokit.IOAHCIFamily 2.7.5

com.apple.iokit.IOUSBFamily 710.4.14

com.apple.driver.AppleEFINVRAM 2.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOHIDFamily 2.0.0

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.DiskImages 396

com.apple.iokit.IOStorageFamily 2.0

com.apple.iokit.IOReportFamily 31

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 3.1

com.apple.iokit.IOPCIFamily 2.9

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

com.apple.kec.Libm 1

com.apple.kec.pthread 1

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User profile for user: drengfer
drengfer Author
User level: Level 1
42 points

Feb 23, 2015 8:01 PM in response to TravisIsCool

Travis


I'd seen that thread, but doesn't appear to apply to my situation. Image Capture Extension (ICE) remains a consistent culprit - seems to run amok, chewing up memory until the machine dies. Unfortunately, I've yet to find the root cause. Today I downloaded a fresh combo installer of 10.10.2 and installed it. Running in normal mode after that install while watching memory use. Will report back...


--Doug

Reply
User profile for user: Ross Barkman
Ross Barkman
User level: Level 1
0 points

Mar 24, 2015 3:01 AM in response to drengfer

Been having the same issue with kernel panics related to vm_object_compressor_pager_create since installing Yosemite on my MBPro (late 2011). Just had a look, and Image Capture Extension is using 2.15GB of memory, though only 13.9MB of real memory. Because the real memory figure is low, I'm not convinced that the (presumed) memory leak in ICE is causing the problem - it's annoying & should be fixed, but it's not chewing up all my real memory (16GB).

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User profile for user: Ross Barkman
Ross Barkman
User level: Level 1
0 points

Mar 24, 2015 3:48 AM in response to drengfer

Done some more digging - found the open source version of the vm_object.c library. While it doesn't have the exact error message we're getting, if has some similar ones. I believe what is happening is that a call is being made to vm_object.c to create a virtual memory object that is larger than vm_object.c allows. The size requested is massive - hex fffffffffffff000 is something like 18.4 yottabytes (18.4 million terabytes), so it's clearly an error. The kernel should be doing some sanity checking on VM requests and rejecting them rather than attempting the impossible - it appears it doesn't, for some reason.

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kernel_task panics under Yosemite

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