here is the crash logs
Anonymous UUID: 597B5634-D743-A5ED-10C9-32D1331DC2F1
Mon Dec 30 20:49:47 2013
panic(cpu 7 caller 0xffffff800ec36a26): "thread_invoke: preemption_level 1, possible cause: blocking while holding a spinlock, or within interrupt context"@/SourceCache/xnu/xnu-2422.1.72/osfmk/kern/sched_prim.c:2231
Backtrace (CPU 7), Frame : Return Address
0xffffff80ffa7ba20 : 0xffffff800ec22f69
0xffffff80ffa7baa0 : 0xffffff800ec36a26
0xffffff80ffa7bb30 : 0xffffff800ec35d4c
0xffffff80ffa7bb70 : 0xffffff800ecd5a00
0xffffff80ffa7bbc0 : 0xffffff800ecd0d9d
0xffffff80ffa7bbe0 : 0xffffff7f8f63ebc2
0xffffff80ffa7bc00 : 0xffffff7f8f720d6b
0xffffff80ffa7bc40 : 0xffffff7f8f664223
0xffffff80ffa7bd40 : 0xffffff7f8fcd31f3
0xffffff80ffa7be00 : 0xffffff7f8fcd4a8a
0xffffff80ffa7bea0 : 0xffffff7f8fcd4ac8
0xffffff80ffa7bec0 : 0xffffff7f8fccea49
0xffffff80ffa7bef0 : 0xffffff800f0ada80
0xffffff80ffa7bf30 : 0xffffff800f0ac522
0xffffff80ffa7bf80 : 0xffffff800f0ac5f7
0xffffff80ffa7bfb0 : 0xffffff800ecd6aa7
Kernel Extensions in backtrace:
com.apple.iokit.IOUSBFamily(650.4.4)[972D3024-AF9C-3E09-A9EC-D9AB2A559B38]@0xff ffff7f8f661000->0xffffff7f8f6bffff
dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7f8f2ba000
com.apple.driver.AppleUSBEHCI(650.4.1)[511713BF-0105-33EB-8488-DCED82CC951B]@0x ffffff7f8fccb000->0xffffff7f8fce2fff
dependency: com.apple.iokit.IOUSBFamily(650.4.4)[972D3024-AF9C-3E09-A9EC-D9AB2A559B38]@0xff ffff7f8f661000
dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7f8f2ba000
com.apple.iokit.IONetworkingFamily(3.2)[1EAD69CB-6AB4-387F-94C4-8FAAFF28354C]@0 xffffff7f8f62d000->0xffffff7f8f659fff
com.realtek.driver.RTL8812AU(1008.0)[EB52618A-F7F2-3C76-8ADC-DB4FC2238184]@0xff ffff7f8f6cc000->0xffffff7f8f90bfff
dependency: com.apple.iokit.IONetworkingFamily(3.2)[1EAD69CB-6AB4-387F-94C4-8FAAFF28354C]@0 xffffff7f8f62d000
dependency: com.apple.iokit.IOUSBFamily(650.4.4)[972D3024-AF9C-3E09-A9EC-D9AB2A559B38]@0xff ffff7f8f661000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
13B42
Kernel version:
Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64
Kernel UUID: 1D9369E3-D0A5-31B6-8D16-BFFBBB390393
Kernel slide: 0x000000000ea00000
Kernel text base: 0xffffff800ec00000
System model name: iMac11,3 (Mac-F2238BAE)
System uptime in nanoseconds: 554802078381
last loaded kext at 264129262852: com.apple.filesystems.msdosfs 1.9 (addr 0xffffff7f913db000, size 65536)
last unloaded kext at 351103831481: com.apple.filesystems.msdosfs 1.9 (addr 0xffffff7f913db000, size 57344)
loaded kexts:
com.eset.kext.esets_kac 500.11.50f01
com.eset.kext.esets_pfw 500.11.50f01
com.realtek.driver.RTL8812AU 1008
com.squirrels.driver.AirParrotSpeakers 1.8
com.parallels.kext.prl_usb_connect 7.0 15106.786747
com.apple.filesystems.smbfs 2.0.0
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AGPM 100.14.11
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleBluetoothMultitouch 80.14
com.apple.iokit.IOBluetoothSerialManager 4.2.0f6
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AudioAUUC 1.60
com.apple.driver.AppleHDA 2.5.3fc1
com.apple.driver.AppleMikeyDriver 2.5.3fc1
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.0f6
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleLPC 1.7.0
com.apple.driver.AppleBacklight 170.3.5
com.apple.driver.AppleUpstreamUserClient 3.5.13
com.apple.driver.AppleMCCSControl 1.1.12
com.apple.kext.AMDFramebuffer 1.1.4
com.apple.AMDRadeonX3000 1.1.4
com.apple.kext.AMD5000Controller 1.1.4
com.apple.driver.AppleIRController 325.7
com.apple.driver.AppleUSBCardReader 3.3.5
com.apple.iokit.SCSITaskUserClient 3.6.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 35
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.4.0
com.apple.driver.AppleUSBHub 650.4.4
com.apple.driver.AppleFWOHCI 4.9.9
com.apple.iokit.AppleBCM5701Ethernet 3.6.9b9
com.apple.driver.AirPort.Atheros40 700.74.5
com.apple.driver.AppleAHCIPort 2.9.5
com.apple.driver.AppleUSBEHCI 650.4.1
com.apple.driver.AppleACPIButtons 2.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.0
com.apple.driver.AppleACPIEC 2.0
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 216.0.0
com.apple.nke.applicationfirewall 153
com.apple.security.quarantine 3
com.apple.driver.AppleIntelCPUPowerManagement 216.0.0
com.apple.kext.triggers 1.0
com.apple.driver.AppleBluetoothHIDKeyboard 170.15
com.apple.driver.AppleHIDKeyboard 170.15
com.apple.driver.IOBluetoothHIDDriver 4.2.0f6
com.apple.driver.AppleMultitouchDriver 245.13
com.apple.iokit.IOSerialFamily 10.0.7
com.apple.driver.DspFuncLib 2.5.3fc1
com.apple.vecLib.kext 1.0.0
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.0f6
com.apple.iokit.IOSurface 91
com.apple.iokit.IOBluetoothFamily 4.2.0f6
com.apple.iokit.IOAudioFamily 1.9.4fc11
com.apple.kext.OSvKernDSPLib 1.14
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.IOPlatformPluginFamily 5.5.1d27
com.apple.iokit.IOFireWireIP 2.2.5
com.apple.driver.AppleHDAController 2.5.3fc1
com.apple.iokit.IOHDAFamily 2.5.3fc1
com.apple.driver.AppleSMC 3.1.6d1
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.driver.AppleSMBusController 1.0.11d1
com.apple.iokit.IONDRVSupport 2.3.6
com.apple.iokit.IOAcceleratorFamily 98.7.1
com.apple.kext.AMDSupport 1.1.4
com.apple.AppleGraphicsDeviceControl 3.4.12
com.apple.iokit.IOGraphicsFamily 2.3.6
com.apple.iokit.IOUSBHIDDriver 650.4.4
com.apple.iokit.IOSCSIBlockCommandsDevice 3.6.0
com.apple.iokit.IOUSBMassStorageClass 3.6.0
com.apple.driver.AppleUSBMergeNub 650.4.0
com.apple.driver.AppleUSBComposite 650.4.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.6.0
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOAHCISerialATAPI 2.6.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.0
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IOUSBUserClient 650.4.4
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.driver.mDNSOffloadUserClient 1.0.1b4
com.apple.iokit.IO80211Family 600.34
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOAHCIFamily 2.6.0
com.apple.iokit.IOUSBFamily 650.4.4
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 278.10
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 21
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 2.0
com.apple.iokit.IOPCIFamily 2.8
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.pthread 1
com.apple.kec.corecrypto 1.0
Model: iMac11,3, BootROM IM112.0057.B01, 4 processors, Intel Core i7, 2.93 GHz, 8 GB, SMC 1.59f2
Graphics: ATI Radeon HD 5750, ATI Radeon HD 5750, PCIe, 1024 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54313235533654465238432D48392020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54313235533654465238432D48392020
Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54313235533654465238432D48392020
Memory Module: BANK 1/DIMM1, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54313235533654465238432D48392020
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.74.0-P2P
Bluetooth: Version 4.2.0f6 12982, 3 services, 23 devices, 1 incoming serial ports
Serial ATA Device: WDC WD1001FALS-40Y6A0, 1 TB
Serial ATA Device: HL-DT-STDVDRW GA32N
USB Device: Hub
USB Device: Internal Memory Card Reader
USB Device: BRCM2046 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Hub
USB Device: 802.11n NIC
USB Device: Built-in iSight
USB Device: IR Receiver
Thunderbolt Bus: