It happened now two times that my mac mini with MacOS with HighSierra 10.13.3 crashes and destroys my Windows 7 virtual machine and my linux VM. I am running parallels version 13.3.0. What is wrong? The panic report says: ** Panic Report *** panic(cpu 0 caller 0xffffff8023e9c4d1): "a freed zone element has been modified in zone kalloc.256: expected 0xdeadbeefdeadbeef but found 0xdeadbeefdeadbecf, bits changed 0x20, at offset 216 of 256 in element 0xffffff80453f5100, cookies 0x3f0011be269f1dbc 0x53521be143be3b1"@/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-4570.41.2/osfmk/kern/zalloc.c:1120 Backtrace (CPU 0), Frame : Return Address 0xffffff92250f31a0 : 0xffffff8023e4f606 0xffffff92250f31f0 : 0xffffff8023f7c654 0xffffff92250f3230 : 0xffffff8023f6e149 0xffffff92250f32b0 : 0xffffff8023e01120 0xffffff92250f32d0 : 0xffffff8023e4f03c 0xffffff92250f3400 : 0xffffff8023e4edbc 0xffffff92250f3460 : 0xffffff8023e9c4d1 0xffffff92250f35b0 : 0xffffff8023e5b214 0xffffff92250f35f0 : 0xffffff8023f00735 0xffffff92250f3640 : 0xffffff8023f014c7 0xffffff92250f39e0 : 0xffffff8023f012e7 0xffffff92250f3ac0 : 0xffffff802407bf4d 0xffffff92250f3d10 : 0xffffff7fa5119afc 0xffffff92250f3d90 : 0xffffff80240ada04 0xffffff92250f3e40 : 0xffffff802434254a 0xffffff92250f3ee0 : 0xffffff80243426be 0xffffff92250f3f40 : 0xffffff80243fa978 0xffffff92250f3fa0 : 0xffffff8023e01906 Kernel Extensions in backtrace: com.apple.filesystems.apfs(748.41.3)[BAFB89B8-4B5E-30FC-B2E1-B84FE072A49C]@0xffffff7fa50fc000->0xffffff7fa51d8fff dependency: com.apple.kec.corecrypto(1.0)[72366D6A-230C-3A33-B2AE-FE567E2FE8F4]@0xffffff7fa4ce3000 dependency: com.apple.driver.AppleEffaceableStorage(1.0)[6B49B846-2852-3D7C-BD45-E70DC2684A8E]@0xffffff7fa505d000 dependency: com.apple.iokit.IOStorageFamily(2.1)[B0FCE898-1542-34C0-B845-46FAE81DD9E6]@0xffffff7fa4846000 BSD process name corresponding to current thread: prl_vm_app Mac OS version: 17D47 Kernel version: Darwin Kernel Version 17.4.0: Sun Dec 17 09:19:54 PST 2017; root:xnu-4570.41.2~1/RELEASE_X86_64 Kernel UUID: 18D901F1-4A03-3FF1-AE34-C26B2732F13C Kernel slide: 0x0000000023a00000 Kernel text base: 0xffffff8023c00000 __HIB text base: 0xffffff8023b00000 System model name: Macmini6,1 (Mac-031AEE4D24BFF0B1) System uptime in nanoseconds: 1384861546753017 last loaded kext at 139888358351640: com.apple.filesystems.afpfs 11.1 (addr 0xffffff7fa6ec0000, size 352256) loaded kexts: com.parallels.kext.usbconnect 13.2.0 43213 com.parallels.kext.vnic 13.2.0 43213 com.parallels.kext.netbridge 13.2.0 43213 com.parallels.kext.hypervisor 13.2.0 43213 com.apple.filesystems.afpfs 11.1 com.apple.nke.asp-tcp 8.0.2 com.apple.filesystems.smbfs 3.2.1 com.apple.filesystems.msdosfs 1.10 com.apple.driver.AppleGraphicsDevicePolicy 3.16.21 com.apple.AGDCPluginDisplayMetrics 3.16.2 com.apple.driver.AudioAUUC 1.70 com.apple.driver.AppleHV 1 com.apple.iokit.IOUserEthernet 1.0.1 com.apple.filesystems.autofs 3.0 com.apple.iokit.IOBluetoothSerialManager 6.0.2f2 com.apple.driver.AppleUpstreamUserClient 3.6.4 com.apple.driver.AppleMikeyHIDDriver 131 com.apple.driver.AGPM 110.23.30 com.apple.driver.ApplePlatformEnabler 2.7.0d0 com.apple.driver.X86PlatformShim 1.0.0 com.apple.driver.pmtelemetry 1 com.apple.driver.AppleMCCSControl 1.5.3 com.apple.driver.AppleHDAHardwareConfigDriver 280.12 com.apple.driver.AppleMikeyDriver 280.12 com.apple.Dont_Steal_Mac_OS_X 7.0.0 com.apple.driver.AppleIntelHD4000Graphics 10.3.0 com.apple.driver.AppleHDA 280.12 com.apple.driver.eficheck 1 com.apple.driver.AirPort.Brcm4331 800.21.30 com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0 com.apple.driver.AppleThunderboltIP 3.1.1 com.apple.driver.AppleUSBFTDI 6.0.0 com.apple.driver.AppleMuxControl 3.16.21 com.apple.driver.AppleSMCPDRC 1.0.0 com.apple.iokit.AppleBCM5701Ethernet 10.3.1 com.apple.driver.AppleLPC 3.1 com.apple.iokit.IOBluetoothUSBDFU 6.0.2f2 com.apple.driver.AppleOSXWatchdog 1 com.apple.driver.AirPort.Brcm4360 1220.18.1a2 com.apple.driver.AppleFIVRDriver 4.1.0 com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0 com.apple.driver.AppleIntelFramebufferCapri 10.3.0 com.apple.driver.AppleIRController 352 com.apple.filesystems.apfs 748.41.3 com.apple.driver.AppleFileSystemDriver 3.0.1 com.apple.filesystems.hfs.kext 407.30.1 com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1 com.apple.BootCache 40 com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0 com.apple.driver.AppleSDXC 1.7.6 com.apple.driver.AppleAHCIPort 329 com.apple.driver.AppleFWOHCI 5.5.8 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.TMSafetyNet 8 com.apple.security.quarantine 3 com.apple.IOBufferCopyEngineTest 1 com.apple.driver.AppleIntelCPUPowerManagement 220.0.0 com.apple.security.SecureRemotePassword 1.0 com.apple.kext.triggers 1.0 com.apple.driver.AppleSSE 1.0 com.apple.driver.DspFuncLib 280.12 com.apple.kext.OSvKernDSPLib 526 com.apple.driver.AppleSMBusController 1.0.18d1 com.apple.driver.IOPlatformPluginLegacy 1.0.0 com.apple.AppleGPUWrangler 3.16.2 com.apple.iokit.IONDRVSupport 517.22 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.usb.serial 6.0.0 com.apple.iokit.IOSerialFamily 11 com.apple.driver.AppleGraphicsControl 3.16.21 com.apple.iokit.IOEthernetAVBController 1.1.0 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.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.AppleThunderboltDPOutAdapter 5.0.2 com.apple.iokit.IOAcceleratorFamily2 376.6 com.apple.iokit.IOSurface 209.2.2 com.apple.AppleGraphicsDeviceControl 3.16.21 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.cdc 5.0.0 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.driver.AppleThunderboltDPInAdapter 5.0.2 com.apple.driver.AppleThunderboltDPAdapterFamily 5.0.2 com.apple.driver.AppleThunderboltPCIDownAdapter 2.1.3 com.apple.driver.AppleXsanScheme 3 com.apple.iokit.IOAHCIBlockStorage 301.40.2 com.apple.driver.AppleThunderboltNHI 4.5.6 com.apple.iokit.IOThunderboltFamily 6.6.3 com.apple.iokit.IOAHCIFamily 288 com.apple.driver.AppleUSBMergeNub 900.4.1 com.apple.iokit.IOFireWireFamily 4.6.8 com.apple.driver.usb.AppleUSBEHCIPCI 1.2 com.apple.driver.usb.AppleUSBEHCI 1.2 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.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.iokit.IOBufferCopyEngineFamily 1 com.apple.driver.DiskImages 480.30.2 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.iokit.IOStorageFamily 2.1 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.IOTimeSyncFamily 650.5 com.apple.iokit.IONetworkingFamily 3.4 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.pthread 1 com.apple.kec.Libm 1 com.apple.kec.corecrypto 1.0 EOF Model: Macmini6,1, BootROM MM61.010B.B00, 2 processors, Intel Core i5, 2,5 GHz, 16 GB, SMC 2.7f1 Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x0198, 0x393930353432382D3038372E4130304C4620 Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x0198, 0x393930353432382D3038372E4130304C4620 AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x10E), Broadcom BCM43xx 1.0 (7.21.190.16.1a2) 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: CT240BX200SSD1, 240,06 GB USB Device: USB 2.0 Bus USB Device: Hub USB Device: USB 2.0 Bus USB Device: Hub USB Device: Hub USB Device: IR Receiver USB Device: BRCM20702 Hub USB Device: Bluetooth USB Host Controller USB Device: USB 3.0 Bus USB Device: Smart-UPS 750 FW:651.12.I USB FW:4.2 USB Device: USB-Serial Controller USB Device: eBus Coupler Iso 21001 USB Device: EIB Weiche USB Thunderbolt Bus: Mac mini, Apple Inc., 23.4
If you disconnect all your third-party peripherals and test, do you still get panics? If so then boot into Safe Mode and test. Do you still get panics? Reinstall the original memory and see whether the panics stop. Regards petapproves..
It happened two times in the last 5 weeks. If I disconnect all peripheral (3 USB Devices) the system does not make any sense for me. The point is, that it did run for almost one year without problems. What do you mean by ā€˛reinstall the original memory"?