Q: "Userspace Panic: retry launch on services that was not deferred"

Hello!

I've recently been experiencing a lot of Kernal Panics over the past several weeks but can't pin-point a specific event that may have initiated it.  I keep receiving the same Problem Report.  Anyone have any suggestions/steps I should take based on the error report provided below:

Tue Mar  8 08:23:30 2016

*** Panic Report ***

panic(cpu 2 caller 0xffffff80021b278b): "userspace panic: retry launch on service that was not deferred"@/Library/Caches/com.apple.xbs/Sources/xnu/xnu-3248.30.4/bsd/kern/kern _shutdown.c:218

Backtrace (CPU 2), Frame : Return Address

0xffffff910d533d50 : 0xffffff8001cdf792

0xffffff910d533dd0 : 0xffffff80021b278b

0xffffff910d533e90 : 0xffffff80021c3ae5

0xffffff910d533f60 : 0xffffff800222a731

0xffffff910d533fb0 : 0xffffff8001df0a36

BSD process name corresponding to current thread: launchd

Mac OS version:

15D21

Kernel version:

Darwin Kernel Version 15.3.0: Thu Dec 10 18:40:58 PST 2015; root:xnu-3248.30.4~1/RELEASE_X86_64

Kernel UUID: DECC9F02-27D7-31F0-9599-A9EF2873902C

Kernel slide:     0x0000000001a00000

Kernel text base: 0xffffff8001c00000

__HIB  text base: 0xffffff8001b00000

System model name: MacBookAir7,2 (Mac-937CB26E2E02BB01)

System uptime in nanoseconds: 47498649308624

last loaded kext at 1114389929092: com.apple.filesystems.smbfs 3.0.0 (addr 0xffffff7f8474c000, size 409600)

last unloaded kext at 238334496560: com.apple.driver.AppleIntelLpssI2C 2.0.59 (addr 0xffffff7f8406e000, size 36864)

loaded kexts:

com.apple.filesystems.smbfs 3.0.0

com.apple.driver.AppleBluetoothMultitouch 90.3

com.apple.filesystems.autofs 3.0

com.apple.driver.AudioAUUC 1.70

com.apple.driver.AGPM 110.20.22

com.apple.driver.X86PlatformShim 1.0.0

com.apple.driver.ApplePlatformEnabler 2.6.0d0

com.apple.driver.AppleOSXWatchdog 1

com.apple.driver.AppleGraphicsDevicePolicy 3.7.7

com.apple.driver.AppleUpstreamUserClient 3.6.1

com.apple.driver.AppleHDA 272.51.3

com.apple.driver.pmtelemetry 1

com.apple.iokit.IOUserEthernet 1.0.1

com.apple.iokit.IOBluetoothSerialManager 4.4.3f4

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleIntelBDWGraphics 10.1.2

com.apple.driver.AppleSMCLMU 208

com.apple.driver.AppleThunderboltIP 3.0.8

com.apple.driver.AppleHV 1

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.4.3f4

com.apple.driver.AppleLPC 3.1

com.apple.driver.AppleCameraInterface 5.41.0

com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0

com.apple.driver.AppleIntelBDWGraphicsFramebuffer 10.1.2

com.apple.driver.AppleBacklight 170.8.8

com.apple.driver.AppleMCCSControl 1.2.13

com.apple.driver.AppleUSBCardReader 3.7.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0

com.apple.BootCache 38

com.apple.driver.AppleTopCaseHIDEventDriver 86

com.apple.iokit.IOAHCIBlockStorage 2.8.5

com.apple.driver.AppleAHCIPort 3.1.8

com.apple.driver.AirPort.Brcm4360 1020.17.1a1

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleACPIButtons 4.0

com.apple.driver.AppleRTC 2.0

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 2.1

com.apple.driver.AppleACPIEC 4.0

com.apple.driver.AppleAPIC 1.7

com.apple.nke.applicationfirewall 163

com.apple.security.quarantine 3

com.apple.security.TMSafetyNet 8

com.apple.driver.IOBluetoothHIDDriver 4.4.3f4

com.apple.kext.triggers 1.0

com.apple.driver.DspFuncLib 272.51.3

com.apple.kext.OSvKernDSPLib 525

com.apple.driver.CoreCaptureResponder 1

com.apple.iokit.IOSurface 108.0.1

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.4.3f4

com.apple.iokit.IOBluetoothFamily 4.4.3f4

com.apple.driver.AppleHDAController 272.51.3

com.apple.iokit.IOHDAFamily 272.51.3

com.apple.iokit.IOAudioFamily 204.3

com.apple.vecLib.kext 1.2.0

com.apple.driver.AppleGraphicsControl 3.12.6

com.apple.iokit.IOSerialFamily 11

com.apple.driver.X86PlatformPlugin 1.0.0

com.apple.driver.IOPlatformPluginFamily 6.0.0d7

com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0

com.apple.AppleGraphicsDeviceControl 3.12.6

com.apple.iokit.IOAcceleratorFamily2 205.1

com.apple.driver.AppleBacklightExpert 1.1.0

com.apple.iokit.IONDRVSupport 2.4.1

com.apple.driver.AppleSMC 3.1.9

com.apple.driver.AppleSMBusController 1.0.14d1

com.apple.iokit.IOGraphicsFamily 2.4.1

com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.7

com.apple.iokit.IOUSBMassStorageDriver 1.0.0

com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7

com.apple.driver.usb.AppleUSBHub 1.0.1

com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1

com.apple.driver.CoreStorage 517.20.1

com.apple.driver.AppleMultitouchDriver 304.10

com.apple.driver.AppleHIDTransport 5

com.apple.driver.AppleHIDKeyboard 181

com.apple.driver.AppleHSSPIHIDDriver 41.7

com.apple.iokit.IOAHCIFamily 2.8.1

com.apple.driver.AppleThunderboltDPInAdapter 4.1.3

com.apple.driver.AppleThunderboltDPAdapterFamily 4.1.3

com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2

com.apple.driver.AppleThunderboltNHI 4.0.4

com.apple.iokit.IOThunderboltFamily 5.1.0

com.apple.iokit.IO80211Family 1110.26

com.apple.driver.mDNSOffloadUserClient 1.0.1b8

com.apple.iokit.IONetworkingFamily 3.2

com.apple.driver.corecapture 1.0.4

com.apple.driver.AppleHSSPISupport 41.7

com.apple.driver.AppleIntelLpssSpiController 2.0.59

com.apple.driver.usb.AppleUSBXHCIPCI 1.0.1

com.apple.driver.usb.AppleUSBXHCI 1.0.1

com.apple.driver.AppleIntelLpssGspi 2.0.59

com.apple.driver.AppleIntelLpssDmac 2.0.59

com.apple.iokit.IOUSBFamily 900.4.1

com.apple.iokit.IOUSBHostFamily 1.0.1

com.apple.driver.AppleUSBHostMergeProperties 1.0.1

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 300.0

com.apple.kext.AppleMatch 1.0.0d1

com.apple.driver.AppleKeyStore 2

com.apple.driver.AppleMobileFileIntegrity 1.0.5

com.apple.driver.AppleCredentialManager 1.0

com.apple.driver.DiskImages 417.2

com.apple.iokit.IOStorageFamily 2.1

com.apple.iokit.IOReportFamily 31

com.apple.driver.AppleFDEKeyStore 28.30

com.apple.driver.AppleACPIPlatform 4.0

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

Model: MacBookAir7,2, BootROM MBA71.0166.B09, 2 processors, Intel Core i7, 2.2 GHz, 8 GB, SMC 2.27f2

Graphics: Intel HD Graphics 6000, Intel HD Graphics 6000, Built-In

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x483943434E4E4E384A544D4C41522D4E544D

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x483943434E4E4E384A544D4C41522D4E544D

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x117), Broadcom BCM43xx 1.0 (7.21.94.136.1a1)

Bluetooth: Version 4.4.3f4 16616, 3 services, 27 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en0

Serial ATA Device: APPLE SSD SM0256G, 251 GB

USB Device: USB 3.0 Bus

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

USB Device: Officejet 4500 G510n-z

Thunderbolt Bus: MacBook Air, Apple Inc., 27.2