[Eden Aurora]

I've been having some kernel panics on an iMac i purchased a year ago.
I don't know how to read the crash log.

What is this?
com.apple.filesystems.afpfs

[Spheric Harlot]

Networking file system.

[P]

Yup, AFP stands for AppleShare Filing Protocol, ie one of the built-in filesharing protocols.

[Eden Aurora]

How do I upload a picture. I want you to see entire crash log

[Mike Wuerthele]

In the quick reply button, there's an icon that has three pictures. Upload your pic someplace, and hit that button, and feed it the URL. Dropbox URLs should be fine.

Have you changed anything lately, or have you had the KPs since the beginning. Have you ever reinstalled the OS?

[Eden Aurora]

I haven't changed anything recently and the crashes have been happening randomly for a long time. sometimes days in between, but consistent.

The uploading to a URL is what was confusing me. where am I suppose to upload my picture to? I don't have any accounts online to upload to.

[Eden Aurora]

Here is what the crash log says. Can anyone tell me what this means?

Anonymous UUID: 25E1D246-6623-74B1-2399-FC765A8E9150

Tue Oct 28 20:26:53 2014
panic(cpu 4 caller 0xffffff80040dc43e): Kernel trap at 0xffffff80060458b0, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0xffffff80060458b0, CR3: 0x0000000006cb1000, CR4: 0x00000000001606e0
RAX: 0x0000000000000002, RBX: 0xffffff8046e32590, RCX: 0x0000000000000010, RDX: 0x000000000000f08d
RSP: 0xffffff83ae1e3dd8, RBP: 0xffffff83ae1e3e20, RSI: 0xffffff8046e32590, RDI: 0xffffff8046e32590
R8: 0x000000000000001f, R9: 0xffffff806267c0a0, R10: 0xffffff7f85e49220, R11: 0xffffffffffffffff
R12: 0xffffff83a1e45000, R13: 0x000000000097a5f3, R14: 0xffffff8044a47280, R15: 0x0000000000000001
RFL: 0x0000000000010002, RIP: 0xffffff80060458b0, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0xffffff80060458b0, Error code: 0x0000000000000010, Fault CPU: 0x4

Backtrace (CPU 4), Frame : Return Address
0xffffff83ae1e3a60 : 0xffffff8004022f79
0xffffff83ae1e3ae0 : 0xffffff80040dc43e
0xffffff83ae1e3cb0 : 0xffffff80040f3976
0xffffff83ae1e3cd0 : 0xffffff80060458b0
0xffffff83ae1e3e20 : 0xffffff80040367aa
0xffffff83ae1e3eb0 : 0xffffff8004035d5c
0xffffff83ae1e3ef0 : 0xffffff8004048789
0xffffff83ae1e3f20 : 0xffffff80040485ee
0xffffff83ae1e3f50 : 0xffffff8004020b63
0xffffff83ae1e3f80 : 0xffffff8004047adc
0xffffff83ae1e3fb0 : 0xffffff80040d7607

BSD process name corresponding to current thread: kernel_task

Mac OS version:
13F34

Kernel version:
Darwin Kernel Version 13.4.0: Sun Aug 17 19:50:11 PDT 2014; root:xnu-2422.115.4~1/RELEASE_X86_64
Kernel UUID: 9477416E-7BCA-3679-AF97-E1EAAD3DD5A0
Kernel slide: 0x0000000003e00000
Kernel text base: 0xffffff8004000000
System model name: iMac14,2 (Mac-27ADBB7B4CEE8E61)

System uptime in nanoseconds: 28150278830165
last loaded kext at 1844762694808: com.apple.filesystems.afpfs 11.1 (addr 0xffffff7f8662a000, size 348160)
last unloaded kext at 100756856314: com.apple.driver.AppleFileSystemDriver 3.0.1 (addr 0xffffff7f86522000, size 8192)
loaded kexts:
com.apple.filesystems.afpfs 11.1
com.apple.nke.asp-tcp 8.0.1
com.apple.driver.AppleBluetoothMultitouch 80.14
com.apple.driver.AudioAUUC 1.60
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOBluetoothSerialManager 4.2.7f3
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleMikeyDriver 2.6.3f4
com.apple.driver.ApplePlatformEnabler 2.0.9d7
com.apple.driver.AGPM 100.14.34
com.apple.driver.X86PlatformShim 1.0.0
com.apple.driver.AppleUpstreamUserClient 3.5.13
com.apple.GeForce 8.2.6
com.apple.driver.AppleHDA 2.6.3f4
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.driver.AppleIntelHD5000Graphics 8.2.8
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.iokit.BroadcomBluetoothHostControllerUSB Transport 4.2.7f3
com.apple.driver.AppleLPC 1.7.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleThunderboltIP 1.1.2
com.apple.driver.AppleBacklight 170.4.11
com.apple.driver.AppleMCCSControl 1.2.5
com.apple.driver.AppleSMCLMU 2.0.4d1
com.apple.driver.AppleIntelFramebufferAzul 8.2.8
com.apple.AppleFSCompression.AppleFSCompressionTyp eDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTyp eLZVN 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTyp eZlib 1.0.0d1
com.apple.BootCache 35
com.apple.driver.AppleUSBHub 683.4.0
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.6.0
com.apple.driver.AppleSDXC 1.5.2
com.apple.iokit.AppleBCM5701Ethernet 3.8.1b2
com.apple.driver.AirPort.Brcm4360 842.21.65
com.apple.driver.AppleAHCIPort 3.0.5
com.apple.driver.AppleUSBXHCI 683.4.0
com.apple.driver.AppleACPIButtons 2.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 2.0
com.apple.driver.AppleAPIC 1.7
com.apple.nke.applicationfirewall 153
com.apple.security.quarantine 3
com.apple.security.SecureRemotePassword 1.0
com.apple.driver.IOBluetoothHIDDriver 4.2.7f3
com.apple.driver.AppleMultitouchDriver 245.13.1
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 10.0.7
com.apple.iokit.IOAcceleratorFamily 98.23
com.apple.nvidia.driver.NVDAGK100Hal 8.2.6
com.apple.nvidia.driver.NVDAResman 8.2.6
com.apple.driver.DspFuncLib 2.6.3f4
com.apple.vecLib.kext 1.0.0
com.apple.iokit.IOAudioFamily 1.9.7fc2
com.apple.kext.OSvKernDSPLib 1.14
com.apple.iokit.IOSurface 91.1
com.apple.iokit.IOBluetoothFamily 4.2.7f3
com.apple.iokit.IOBluetoothHostControllerUSBTransp ort 4.2.7f3
com.apple.driver.AppleThunderboltEDMSink 2.1.3
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.driver.AppleSMBusController 1.0.12d1
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.AppleGraphicsDeviceControl 3.6.22
com.apple.iokit.IOAcceleratorFamily2 98.23
com.apple.driver.AppleHDAController 2.6.3f4
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOHDAFamily 2.6.3f4
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.driver.AppleSMC 3.1.8
com.apple.driver.IOPlatformPluginFamily 5.7.1d6
com.apple.driver.AppleUSBHIDKeyboard 170.15
com.apple.driver.AppleHIDKeyboard 170.15
com.apple.iokit.IOUSBHIDDriver 660.4.0
com.apple.iokit.IOSCSIBlockCommandsDevice 3.6.7
com.apple.iokit.IOUSBMassStorageClass 3.6.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.7
com.apple.driver.AppleUSBMergeNub 650.4.0
com.apple.driver.AppleUSBComposite 656.4.1
com.apple.driver.AppleThunderboltDPInAdapter 3.1.7
com.apple.driver.AppleThunderboltDPOutAdapter 3.1.7
com.apple.driver.AppleThunderboltDPAdapterFamily 3.1.7
com.apple.driver.AppleThunderboltPCIDownAdapter 1.4.5
com.apple.driver.CoreStorage 380.70.2
com.apple.iokit.IOUSBUserClient 660.4.2
com.apple.driver.AppleThunderboltNHI 2.0.1
com.apple.iokit.IOThunderboltFamily 3.3.1
com.apple.iokit.IOEthernetAVBController 1.0.3b4
com.apple.iokit.IO80211Family 640.36
com.apple.driver.mDNSOffloadUserClient 1.0.1b5
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOAHCIFamily 2.6.5
com.apple.iokit.IOUSBFamily 686.4.1
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 278.11.1
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.AppleKeyStore 2
com.apple.driver.DiskImages 371.1
com.apple.iokit.IOStorageFamily 1.9
com.apple.iokit.IOReportFamily 23
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 2.0
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
com.apple.kec.pthread 1
Model: iMac14,2, BootROM IM142.0118.B00, 4 processors, Intel Core i7, 3.5 GHz, 32 GB, SMC 2.15f2
Graphics: NVIDIA GeForce GTX 780M, NVIDIA GeForce GTX 780M, PCIe, 4096 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738454655352D474E4C2D46
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738454655352D474E4C2D46
Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738454655352D474E4C2D46
Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738454655352D474E4C2D46
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (6.30.223.154.65)
Bluetooth: Version 4.2.7f3 14616, 3 services, 23 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: APPLE SSD SD0128F, 121.33 GB
Serial ATA Device: APPLE HDD ST3000DM001, 3 TB
USB Device: FaceTime HD Camera (Built-in)
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: MG6200 series
USB Device: Keyboard Hub
USB Device: Apple Keyboard
Thunderbolt Bus: iMac, Apple Inc., 23.10

[Eden Aurora]

Anyone know how to read or make sense of this code?

[P]

It looks like a bug from Apple that is triggered by a low memory condition.

[Eden Aurora]

what line are you looking at that will tell you that?
i'm trying to understand the report

[P]

Right at the beginning, where the error type is "page fault". A page fault means that a virtual memory page is not backed by a real memory page. Normally this is not a problem - the VM system just needs to page in information from the disk - but here it apparently cannot do that. I read this as the execution happens in a code path that cannot tolerate paging - ie, the memory page should have been marked as "Wired", a memory page that should not ever have been paged out. That is then an Apple bug, but one that will only be triggered when that memory page is paged out to begin with - ie a low memory condition.

Another way to read it is that is that there is a hardware error in RAM. If so, you should run a RAM tester to check that your RAM is 100% OK.