Whilst installing the latest update for Parallels 6, my iMac crashed. This occurred towards the end of the process when all the network devices where being registered (Hardware growler shows these). It could be coincidental, but it's the first crash I've had in a year or two. This is the log: Thu Sep 16 22:46:02 2010 panic(cpu 0 caller 0x4797d6): "_MALLOC: kalloc returned NULL (potential leak), size 4294965864"@/SourceCache/xnu/xnu-1504.7.4/bsd/kern/kern_malloc.c:569 Backtrace (CPU 0), Frame : Return Address (4 potential args on stack) 0x850a3a28 : 0x21b455 (0x5cf328 0x850a3a5c 0x2238b1 0x0) 0x850a3a78 : 0x4797d6 (0x5c1d24 0xfffffa68 0x0 0x8798e0) 0x850a3a98 : 0x4b6436 (0xfffffa68 0x50 0x0 0xfebdf218) 0x850a3dd8 : 0x48b096 (0x8366e0 0x1 0x0 0x850a3e50) 0x850a3e28 : 0x48b1d8 (0x850a3e50 0x30 0x850a3e78 0x232636) 0x850a3ec8 : 0x489e81 (0xdd3cd20 0x850a3f24 0x4 0x1000000) 0x850a3f78 : 0x4edaf8 (0xdd3cd20 0xde3a7a8 0xe5fda64 0x1) 0x850a3fc8 : 0x29f43d (0xde3a7a4 0x0 0x10 0x1cc62ee4) BSD process name corresponding to current thread: netstat Mac OS version: 10F569 Kernel version: Darwin Kernel Version 10.4.0: Fri Apr 23 18:28:53 PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386 System model name: iMac11,1 (Mac-F2268DAE) System uptime in nanoseconds: 15759958701615 unloaded kexts: com.google.filesystems.fusefs 2.1.5 (addr 0x856c9000, size 0x81920) - last unloaded 15734768616054 loaded kexts: com.parallels.kext.prl_vnic 6.0 11822.604190 - last loaded 15755631786200 com.parallels.kext.prl_netbridge 6.0 11822.604190 com.parallels.kext.prl_usb_connect 6.0 11822.604190 com.parallels.kext.prl_hid_hook 6.0 11822.604190 com.parallels.kext.prl_hypervisor 6.0 11822.604190 com.binaryage.totalfinder.kext 0.9.9 org.virtualbox.kext.VBoxNetAdp 3.2.8 org.virtualbox.kext.VBoxNetFlt 3.2.8 org.virtualbox.kext.VBoxUSB 3.2.8 org.virtualbox.kext.VBoxDrv 3.2.8 com.google.filesystems.fusefs 2.1.5 com.DataRobotics.driver.iSCSIInitiator 1.4.31 com.apple.filesystems.cd9660 1.4.1 com.apple.filesystems.afpfs 9.7 com.apple.nke.asp_tcp 5.0 com.apple.driver.AppleBluetoothMultitouch 51.2 com.apple.filesystems.autofs 2.1.0 com.apple.driver.AGPM 100.12.12 com.apple.driver.AppleHWSensor 1.9.3d0 com.apple.driver.AppleMikeyHIDDriver 1.2.0 com.apple.driver.AppleUpstreamUserClient 3.3.2 com.apple.driver.AppleHDA 1.8.7f1 com.apple.kext.ATIFramebuffer 6.1.8 com.apple.driver.AppleMikeyDriver 1.8.7f1 com.apple.driver.AudioAUUC 1.4 com.apple.ATIRadeonX2000 6.1.8 com.apple.Dont_Steal_Mac_OS_X 7.0.0 com.apple.driver.AudioIPCDriver 1.1.2 com.apple.driver.AirPort.Atheros21 423.9.9 com.apple.driver.ACPI_SMC_PlatformPlugin 4.1.2b1 com.apple.driver.AppleLPC 1.4.12 com.apple.driver.AppleBacklight 170.0.24 com.apple.driver.AppleIRController 303.8 com.apple.driver.AppleUSBCardReader 2.5.4 com.apple.driver.Oxford_Semi 2.5.4 com.apple.iokit.SCSITaskUserClient 2.6.5 com.apple.BootCache 31 com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1 com.apple.iokit.IOAHCIBlockStorage 1.6.2 com.apple.driver.AppleFWOHCI 4.7.1 com.apple.driver.AppleUSBHub 4.0.0 com.apple.iokit.AppleBCM5701Ethernet 2.3.8b2 com.apple.driver.AppleEFINVRAM 1.3.0 com.apple.driver.AppleUSBEHCI 4.0.2 com.apple.driver.AppleUSBUHCI 4.0.2 com.apple.driver.AppleAHCIPort 2.1.2 com.apple.driver.AppleACPIButtons 1.3.2 com.apple.driver.AppleRTC 1.3.1 com.apple.driver.AppleHPET 1.5 com.apple.driver.AppleSMBIOS 1.6 com.apple.driver.AppleACPIEC 1.3.2 com.apple.driver.AppleAPIC 1.4 com.apple.driver.AppleIntelCPUPowerManagementClient 105.10.0 com.apple.security.sandbox 0 com.apple.security.quarantine 0 com.apple.nke.applicationfirewall 2.1.11 com.apple.driver.AppleIntelCPUPowerManagement 105.10.0 com.apple.driver.IOBluetoothHIDDriver 2.3.3f8 com.apple.driver.AppleMultitouchDriver 204.13 com.apple.driver.AppleProfileReadCounterAction 17 com.apple.driver.DspFuncLib 1.8.7f1 com.apple.driver.AppleProfileTimestampAction 10 com.apple.driver.AppleProfileThreadInfoAction 14 com.apple.driver.AppleProfileRegisterStateAction 10 com.apple.driver.AppleProfileKEventAction 10 com.apple.driver.AppleProfileCallstackAction 20 com.apple.driver.AppleSMBusController 1.0.8d0 com.apple.kext.ATI4800Controller 6.1.8 com.apple.kext.ATISupport 6.1.8 com.apple.iokit.IOFireWireIP 2.0.3 com.apple.iokit.KLog 3.0.3 com.apple.iokit.IOSurface 74.0 com.apple.iokit.IOBluetoothSerialManager 2.3.3f8 com.apple.iokit.IOSerialFamily 10.0.3 com.apple.iokit.IOSCSIParallelFamily 2.0.0 com.apple.iokit.IOAudioFamily 1.7.6fc2 com.apple.kext.OSvKernDSPLib 1.3 com.apple.driver.AppleHDAController 1.8.7f1 com.apple.iokit.IOHDAFamily 1.8.7f1 com.apple.iokit.IO80211Family 311.1 com.apple.iokit.AppleProfileFamily 41 com.apple.driver.AppleSMC 3.0.1d2 com.apple.driver.IOPlatformPluginFamily 4.1.2b1 com.apple.driver.AppleSMBusPCI 1.0.8d0 com.apple.iokit.IONDRVSupport 2.1 com.apple.iokit.IOGraphicsFamily 2.1 com.apple.driver.AppleUSBHIDKeyboard 1.2.0a3 com.apple.driver.AppleHIDKeyboard 1.2.0a3 com.apple.driver.BroadcomUSBBluetoothHCIController 2.3.3f8 com.apple.driver.AppleUSBBluetoothHCIController 2.3.3f8 com.apple.iokit.IOBluetoothFamily 2.3.3f8 com.apple.iokit.IOUSBHIDDriver 4.0.2 com.apple.iokit.IOSCSIBlockCommandsDevice 2.6.5 com.apple.iokit.IOUSBMassStorageClass 2.6.1 com.apple.iokit.IOFireWireSerialBusProtocolTransport 2.0.1 com.apple.iokit.IOFireWireSBP2 4.0.6 com.apple.driver.AppleUSBMergeNub 4.0.0 com.apple.driver.AppleUSBComposite 3.9.0 com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.6.5 com.apple.iokit.IOBDStorageFamily 1.6 com.apple.iokit.IODVDStorageFamily 1.6 com.apple.iokit.IOCDStorageFamily 1.6 com.apple.driver.XsanFilter 402.1 com.apple.iokit.IOAHCISerialATAPI 1.2.4 com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.5 com.apple.iokit.IOFireWireFamily 4.2.6 com.apple.iokit.IOUSBUserClient 4.0.0 com.apple.iokit.IONetworkingFamily 1.9 com.apple.iokit.IOUSBFamily 4.0.2 com.apple.iokit.IOAHCIFamily 2.0.4 com.apple.driver.AppleEFIRuntime 1.3.0 com.apple.iokit.IOHIDFamily 1.6.4 com.apple.iokit.IOSMBusFamily 1.1 com.apple.kext.AppleMatch 1.0.0d1 com.apple.security.TMSafetyNet 6 com.apple.driver.DiskImages 283 com.apple.iokit.IOStorageFamily 1.6.1 com.apple.driver.AppleACPIPlatform 1.3.2 com.apple.iokit.IOPCIFamily 2.6 com.apple.iokit.IOACPIFamily 1.3.0