Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

a freed zone element has been modified in zone kalloc

Hi All,

there are several of these posted, but no real answers other than uninstall (typically) the anti-virus software.

I've just done a fresh install on my Mac and overnight it "restarted because of a problem"

I don't seem to have any non apple drivers listed. Only item plugged in to the USB were an iPhone and an Apple keyboard - could either of the cause this?

Would be great to hear from anyone with a similar issue that has hopefully fixed it (or what didn't work if you still have the issue)

Thanks

Dave


Fri Jan 5 04:07:12 2018


*** Panic Report ***

panic(cpu 2 caller 0xffffff800829e5fc): "a freed zone element has been modified in zone kalloc.128: expected 0xc0ffee5fd78cd3a2 but found 0xc0ffeee2d78cd3a2, bits changed 0xbd00000000, at offset 120 of 128 in element 0xffffff8056255100, cookies 0x3f0011df81a98222 0x535218070b18fd7"@/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-4570 .31.3/osfmk/kern/zalloc.c:1120

Backtrace (CPU 2), Frame : Return Address

0xffffff9ad2503840 : 0xffffff80082505f6

0xffffff9ad2503890 : 0xffffff800837d604

0xffffff9ad25038d0 : 0xffffff800836f0f9

0xffffff9ad2503950 : 0xffffff8008202120

0xffffff9ad2503970 : 0xffffff800825002c

0xffffff9ad2503aa0 : 0xffffff800824fdac

0xffffff9ad2503b00 : 0xffffff800829e5fc

0xffffff9ad2503b60 : 0xffffff800829e431

0xffffff9ad2503bb0 : 0xffffff800829c9b3

0xffffff9ad2503ce0 : 0xffffff800825c204

0xffffff9ad2503d20 : 0xffffff8008717ff9

0xffffff9ad2503d50 : 0xffffff7f8a2769dc

0xffffff9ad2503d80 : 0xffffff7f8a275614

0xffffff9ad2503db0 : 0xffffff8008799832

0xffffff9ad2503df0 : 0xffffff8008799c6d

0xffffff9ad2503e20 : 0xffffff800876faf3

0xffffff9ad2503e80 : 0xffffff8008781355

0xffffff9ad2503f00 : 0xffffff8008781203

0xffffff9ad2503f40 : 0xffffff80087fb3e8

0xffffff9ad2503fa0 : 0xffffff8008202906

Kernel Extensions in backtrace:

com.apple.nke.applicationfirewall(183.0)[CBC1954F-5BBE-3FD5-B1BD-24E999226FEF]@ 0xffffff7f8a272000->0xffffff7f8a279fff



BSD process name corresponding to current thread: SystemUIServer



Mac OS version:

17C88



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: 0x0000000007e00000

Kernel text base: 0xffffff8008000000

__HIB text base: 0xffffff8007f00000

System model name: iMac14,2 (Mac-27ADBB7B4CEE8E61)



System uptime in nanoseconds: 15480876437687

last loaded kext at 14882369165016: com.apple.driver.usb.cdc.acm 5.0.0 (addr 0xffffff7f8aee5000, size 57344)

last unloaded kext at 13555772095860: com.apple.driver.AppleUSBMergeNub 900.4.1 (addr 0xffffff7f8a28a000, size 12288)

loaded kexts:

com.apple.nke.rvi 2.0.0

com.apple.filesystems.smbfs 3.2

com.apple.driver.AppleBluetoothMultitouch 92

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AudioAUUC 1.70

com.apple.AGDCPluginDisplayMetrics 3.16.2

com.apple.driver.pmtelemetry 1

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.iokit.IOBluetoothSerialManager 6.0.2f2

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AGPM 110.23.24

com.apple.driver.ApplePlatformEnabler 2.7.0d0

com.apple.driver.X86PlatformShim 1.0.0

com.apple.driver.AppleUpstreamUserClient 3.6.4

com.apple.driver.AppleMikeyHIDDriver 131

com.apple.driver.AppleHV 1

com.apple.GeForce 10.2.8

com.apple.driver.AppleIntelHD5000Graphics 10.3.0

com.apple.driver.AppleHDA 280.12

com.apple.driver.AppleMikeyDriver 280.12

com.apple.driver.eficheck 1

com.apple.driver.AppleThunderboltIP 3.1.1

com.apple.driver.AppleBacklight 170.10.2

com.apple.iokit.AppleBCM5701Ethernet 10.3.1

com.apple.driver.AppleSMCLMU 211

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleLPC 3.1

com.apple.driver.AirPort.BrcmNIC 1220.28.1a3

com.apple.driver.AppleIntelFramebufferAzul 10.3.0

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.AppleMCCSControl 1.5.3

com.apple.filesystems.autofs 3.0

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.driver.AppleSDXC 1.7.6

com.apple.driver.AppleAHCIPort 329

com.apple.driver.AppleACPIButtons 6.1

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 6.1

com.apple.driver.AppleAPIC 1.7

com.apple.nke.applicationfirewall 183

com.apple.security.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.IOBufferCopyEngineTest 1

com.apple.driver.usb.cdc.acm 5.0.0

com.apple.driver.usb.cdc.ecm 5.0.0

com.apple.driver.AppleUSBMergeNub 900.4.1

com.apple.driver.usb.cdc.ncm 5.0.0

com.apple.driver.usb.cdc 5.0.0

com.apple.driver.IOBluetoothHIDDriver 6.0.2f2

com.apple.driver.AppleMultitouchDriver 1204.13

com.apple.driver.AppleInputDeviceSupport 1201.8

com.apple.iokit.IOTimeSyncFamily 650.5

com.apple.iokit.IOSerialFamily 11

com.apple.driver.AppleSSE 1.0

com.apple.nvidia.driver.NVDAGK100Hal 10.2.8

com.apple.nvidia.driver.NVDAResman 10.2.8

com.apple.driver.DspFuncLib 280.12

com.apple.kext.OSvKernDSPLib 526

com.apple.AppleGPUWrangler 3.16.2

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.iokit.IONDRVSupport 517.22

com.apple.iokit.IOEthernetAVBController 1.1.0

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.driver.AppleSMBusPCI 1.0.14d1

com.apple.iokit.IO80211Family 1200.12.2

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.driver.corecapture 1.0.4

com.apple.AppleGraphicsDeviceControl 3.16.21

com.apple.iokit.IOAcceleratorFamily2 376.6

com.apple.iokit.IOSurface 209.2.2

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.IOPlatformPluginFamily 6.0.0d8

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.driver.AppleThunderboltEDMSink 4.1.2

com.apple.driver.AppleSMBusController 1.0.18d1

com.apple.iokit.IOGraphicsFamily 517.22

com.apple.kext.triggers 1.0

com.apple.driver.AppleHIDKeyboard 203

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.AppleUSBHub 1.2

com.apple.driver.usb.networking 5.0.0

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2

com.apple.iokit.IONetworkingFamily 3.4

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

com.apple.driver.AppleThunderboltDPInAdapter 5.0.2

com.apple.driver.AppleThunderboltDPOutAdapter 5.0.2

com.apple.driver.AppleThunderboltDPAdapterFamily 5.0.2

com.apple.driver.AppleThunderboltPCIDownAdapter 2.1.3

com.apple.iokit.IOAHCIBlockStorage 301.20.1

com.apple.driver.AppleThunderboltNHI 4.5.6

com.apple.iokit.IOThunderboltFamily 6.6.3

com.apple.iokit.IOAHCIFamily 288

com.apple.driver.usb.AppleUSBXHCIPCI 1.2

com.apple.driver.usb.AppleUSBXHCI 1.2

com.apple.driver.usb.AppleUSBHostPacketFilter 1.0

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.driver.AppleEFINVRAM 2.1

com.apple.driver.AppleUSBHostMergeProperties 1.2

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.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: iMac14,2, BootROM IM142.0123.B00, 4 processors, Intel Core i5, 3.4 GHz, 24 GB, SMC 2.15f7

Graphics: NVIDIA GeForce GTX 775M, NVIDIA GeForce GTX 775M, PCIe, 2 GB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54343531533641465238412D50422020

Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x0198, 0x393955353432382D3031382E4130304C4620

Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x0198, 0x393955353432382D3031382E4130304C4620

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x111), Broadcom BCM43xx 1.0 (7.77.37.5.1a3)

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

Network Service: Ethernet, Ethernet, en0

Network Service: iPhone, Ethernet, en5

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: APPLE HDD ST1000DM003, 1 TB

USB Device: USB 3.0 Bus

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

USB Device: FaceTime HD Camera (Built-in)

USB Device: Keyboard Hub

USB Device: Apple Keyboard

USB Device: iPhone

Thunderbolt Bus: iMac, Apple Inc., 23.10

iMac (27-inch, Late 2013), macOS High Sierra (10.13.2)

Posted on Jan 5, 2018 1:37 AM

Reply
Question marked as Best reply

Posted on Jan 5, 2018 6:54 AM

Remove the aftermarket RAM. Test.

2 replies

a freed zone element has been modified in zone kalloc

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.