Your computer was restarted because of a problem

I have a 2010 27" iMac that sporadically keeps restarting.  I've unsuccessfully attempted to run a hard diagnostics test.  I get a globe with a triangle and exclamation point with error code.  The following is a copy of the latest panic report sent to apple.  I'm not sure if its a hardware or software issue.  Any advice or suggestions would be appreciated.  Thanks!

 

Anonymous UUID:       7DF0E15F-3047-9EDD-D449-0912A81366AF

 

 

Sat Jan 20 17:21:26 2018

 

 

*** Panic Report ***

panic(cpu 2 caller 0xffffff801289e657): "a freed zone element has been modified in zone vm objects: expected 0x3f001142a69ed2ce but found 0x3f009142a69ed2ce, bits changed 0x800000000000, at offset 0 of 256 in element 0xffffff803cfc6b00, cookies 0x3f001142a69ed2ce 0x535218a92d6c4bf"@/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-4570 .31.3/osfmk/kern/zalloc.c:1120

Backtrace (CPU 2), Frame : Return Address

0xffffff8d8df8b630 : 0xffffff80128505f6

0xffffff8d8df8b680 : 0xffffff801297d604

0xffffff8d8df8b6c0 : 0xffffff801296f0f9

0xffffff8d8df8b740 : 0xffffff8012802120

0xffffff8d8df8b760 : 0xffffff801285002c

0xffffff8d8df8b890 : 0xffffff801284fdac

0xffffff8d8df8b8f0 : 0xffffff801289e657

0xffffff8d8df8b950 : 0xffffff801289df70

0xffffff8d8df8b9a0 : 0xffffff801289c9b3

0xffffff8d8df8bad0 : 0xffffff80128e05a1

0xffffff8d8df8bbc0 : 0xffffff80128d356e

0xffffff8d8df8bd70 : 0xffffff80128d460a

0xffffff8d8df8bdd0 : 0xffffff7f93506411

0xffffff8d8df8bf30 : 0xffffff7f93505e59

0xffffff8d8df8bfa0 : 0xffffff80128014f7

      Kernel Extensions in backtrace:

         com.apple.kec.pthread(1.0)[71C5BFFF-88C9-3420-8F52-029FAFF0866D]@0xffffff7f9350 2000->0xffffff7f93510fff

 

 

BSD process name corresponding to current thread: opendirectoryd

 

 

Mac OS version:

17C205

 

 

Kernel version:

Darwin Kernel Version 17.3.0: Thu Nov  9 18:09:22 PST 2017; root:xnu-4570.31.3~1/RELEASE_X86_64

Kernel UUID: 87641697-A3DD-30C4-B010-E65ECE57550B

Kernel slide:     0x0000000012400000

Kernel text base: 0xffffff8012600000

__HIB  text base: 0xffffff8012500000

System model name: iMac11,3 (Mac-F2238BAE)

 

 

System uptime in nanoseconds: 31016853054324

last loaded kext at 271120560425: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f95cf6000, size 69632)

last unloaded kext at 331562523007: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f95cf6000, size 61440)

loaded kexts:

com.apple.driver.AudioAUUC 1.70

com.apple.driver.AppleTopCaseHIDEventDriver 127

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AGPM 110.23.24

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleMikeyHIDDriver 131

com.apple.driver.AppleMikeyDriver 280.12

com.apple.AGDCPluginDisplayMetrics 3.16.2

com.apple.driver.pmtelemetry 1

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.driver.AppleUpstreamUserClient 3.6.4

com.apple.iokit.IOBluetoothSerialManager 6.0.2f2

com.apple.driver.AppleHDA 280.12

com.apple.kext.AMDLegacyFramebuffer 1.6.0

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleBacklight 170.10.2

com.apple.kext.AMDRadeonX3000 1.6.0

com.apple.driver.AppleHV 1

com.apple.driver.eficheck 1

com.apple.driver.AppleMCCSControl 1.5.3

com.apple.driver.AppleLPC 3.1

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.kext.AMD5000Controller 1.6.0

com.apple.driver.AppleUSBCardReader 439.30.4

com.apple.driver.AppleIRController 352

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.BootCache 40

com.apple.filesystems.hfs.kext 407.30.1

com.apple.iokit.SCSITaskUserClient 404.30.2

com.apple.driver.AppleFWOHCI 5.5.8

com.apple.iokit.AppleBCM5701Ethernet 10.3.1

com.apple.driver.AppleAHCIPort 329

com.apple.driver.AirPort.Atheros40 700.74.5

com.apple.driver.AppleACPIButtons 6.1

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 6.1

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 220.0.0

com.apple.nke.applicationfirewall 183

com.apple.security.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.driver.AppleIntelCPUPowerManagement 220.0.0

com.apple.IOBufferCopyEngineTest 1

com.apple.driver.AppleHIDKeyboard 203

com.apple.driver.AppleActuatorDriver 1204.13

com.apple.driver.AppleMultitouchDriver 1204.13

com.apple.driver.AppleInputDeviceSupport 1201.8

com.apple.driver.AppleHSBluetoothDriver 127

com.apple.driver.IOBluetoothHIDDriver 6.0.2f2

com.apple.kext.triggers 1.0

com.apple.iokit.IOSerialFamily 11

com.apple.driver.DspFuncLib 280.12

com.apple.kext.OSvKernDSPLib 526

com.apple.driver.AppleSSE 1.0

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.iokit.IONDRVSupport 517.22

com.apple.iokit.IOAcceleratorFamily2 376.6

com.apple.iokit.IOSurface 209.2.2

com.apple.driver.AppleSMBusController 1.0.18d1

com.apple.AppleGPUWrangler 3.16.2

com.apple.AppleGraphicsDeviceControl 3.16.21

com.apple.driver.AppleHDAController 280.12

com.apple.iokit.IOHDAFamily 280.12

com.apple.iokit.IOAudioFamily 206.5

com.apple.vecLib.kext 1.2.0

com.apple.iokit.IOFireWireIP 2.2.8

com.apple.driver.AppleSMBusPCI 1.0.14d1

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 6.0.0d8

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.kext.AMDLegacySupport 1.6.0

com.apple.iokit.IOGraphicsFamily 517.22

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 6.0.2f2

com.apple.iokit.IOBluetoothHostControllerUSBTransport 6.0.2f2

com.apple.iokit.IOBluetoothHostControllerTransport 6.0.2f2

com.apple.iokit.IOBluetoothFamily 6.0.2f2

com.apple.driver.usb.IOUSBHostHIDDevice 1.2

com.apple.driver.usb.networking 5.0.0

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2

com.apple.driver.usb.AppleUSBHub 1.2

com.apple.filesystems.hfs.encodings.kext 1

com.apple.iokit.IOSCSIMultimediaCommandsDevice 404.30.2

com.apple.iokit.IOBDStorageFamily 1.8

com.apple.iokit.IODVDStorageFamily 1.8

com.apple.iokit.IOCDStorageFamily 1.8

com.apple.iokit.IOAHCISerialATAPI 267

com.apple.iokit.IOAHCIBlockStorage 301.20.1

com.apple.iokit.IOFireWireFamily 4.6.8

com.apple.iokit.IOEthernetAVBController 1.1.0

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.iokit.IOAHCIFamily 288

com.apple.iokit.IO80211Family 1200.12.2

com.apple.driver.corecapture 1.0.4

com.apple.driver.usb.AppleUSBEHCIPCI 1.2

com.apple.driver.usb.AppleUSBEHCI 1.2

com.apple.driver.usb.AppleUSBHostPacketFilter 1.0

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.driver.AppleUSBHostMergeProperties 1.2

com.apple.driver.AppleEFINVRAM 2.1

com.apple.driver.AppleEFIRuntime 2.1

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.AppleFDEKeyStore 28.30

com.apple.driver.AppleEffaceableStorage 1.0

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleUSBTDM 439.30.4

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.iokit.IOUSBMassStorageDriver 140.30.1

com.apple.iokit.IOSCSIBlockCommandsDevice 404.30.2

com.apple.iokit.IOSCSIArchitectureModelFamily 404.30.2

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.KernelRelayHost 1

com.apple.iokit.IOUSBHostFamily 1.2

com.apple.driver.usb.AppleUSBCommon 1.0

com.apple.driver.AppleBusPowerController 1.0

com.apple.driver.AppleSEPManager 1.0.1

com.apple.driver.IOSlaveProcessor 1

com.apple.iokit.IOBufferCopyEngineFamily 1

com.apple.driver.DiskImages 480.30.2

com.apple.iokit.IOStorageFamily 2.1

com.apple.iokit.IOReportFamily 31

com.apple.iokit.IOTimeSyncFamily 650.5

com.apple.iokit.IONetworkingFamily 3.4

com.apple.driver.AppleACPIPlatform 6.1

com.apple.driver.AppleSMCRTC 1.0

com.apple.driver.AppleSMC 3.1.9

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

 

 

EOF

Model: iMac11,3, BootROM IM112.005B.B00, 2 processors, Intel Core i3, 3.2 GHz, 12 GB, SMC 1.59f2

Graphics: ATI Radeon HD 5670, ATI Radeon HD 5670, PCIe, 512 MB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353637334648302D4348392020

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353637334648302D4348392020

Memory Module: BANK 0/DIMM1, 4 GB, DDR3, 1333 MHz, 0x0000, 0x202020202020202020202020202020202020

Memory Module: BANK 1/DIMM1, 4 GB, DDR3, 1333 MHz, 0x02FE, 0x45424A3431554638424353302D444A2D4620

AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.74.0-P2P

Bluetooth: Version 6.0.2f2, 3 services, 27 devices, 1 incoming serial ports

Network Service: Ethernet, Ethernet, en0

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: WDC WD1001FALS-40Y6A0, 1 TB

Serial ATA Device: OPTIARC DVD RW AD-5680H

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: IR Receiver

USB Device: Built-in iSight

USB Device: USB 2.0 Bus

USB Device: Hub

USB Device: Internal Memory Card Reader

USB Device: BRCM2046 Hub

USB Device: Bluetooth USB Host Controller

Thunderbolt Bus:


iMac, Mac OS X (10.7.2)
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Good work!

 

I would test it with 8GB (the 2 2GB and the good 4GB module) for awhile, then decide if you need to replace the bad 4GB module.

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