Looks like a problem with Kernel Task. Try a reinstall.
Fresh install, new HD.
Anonymous UUID: 7DDA83F0-8553-5C71-857A-3F7A0D2D3A8D
Fri Sep 9 05:39:31 2016
*** Panic Report ***
panic(cpu 0 caller 0xffffff8014785e4f): "vm_page_check_pageable_safe: trying to add page" "from compressor object (0xffffff8014ec35f0) to pageable queue"@/Library/Caches/com.apple.xbs/Sources/xnu/xnu-3248.60.10/osfmk/vm/vm_resident.c:7076
Backtrace (CPU 0), Frame : Return Address
0xffffff919402b570 : 0xffffff80146dab52
0xffffff919402b5f0 : 0xffffff8014785e4f
0xffffff919402b610 : 0xffffff801474aa23
0xffffff919402b790 : 0xffffff801474e94b
0xffffff919402b9b0 : 0xffffff80147ce25d
0xffffff919402bb90 : 0xffffff80147ec563
0xffffff919402bbb0 : 0xffffff8014c3ad2b
0xffffff919402bca0 : 0xffffff8014c3c9df
0xffffff919402bcc0 : 0xffffff8014c8889f
0xffffff919402bce0 : 0xffffff8014c8890c
0xffffff919402bd10 : 0xffffff8014c889fc
0xffffff919402bd30 : 0xffffff8014cd19bb
0xffffff919402bd90 : 0xffffff8014cfd156
0xffffff919402be00 : 0xffffff8014ca2b69
0xffffff919402be60 : 0xffffff8014c9aaf4
0xffffff919402bec0 : 0xffffff8014ca7db2
0xffffff919402bf00 : 0xffffff8014ca7f02
0xffffff919402bf40 : 0xffffff8014cb2fb1
0xffffff919402bf80 : 0xffffff8014cb31ac
0xffffff919402bfb0 : 0xffffff80147c9117
BSD process name corresponding to current thread: kernel_task
Boot args: dart=0
Mac OS version:
15G31
Kernel version:
Darwin Kernel Version 15.6.0: Thu Jun 23 18:25:34 PDT 2016; root:xnu-3248.60.10~1/RELEASE_X86_64
Kernel UUID: B5AA8E3E-65B6-3D0E-867B-8DCCF81E536C
Kernel slide: 0x0000000014400000
Kernel text base: 0xffffff8014600000
__HIB text base: 0xffffff8014500000
System model name: MacPro3,1 (Mac-F42C88C8)
System uptime in nanoseconds: 9885038829514
last loaded kext at 2772874153004: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7f96d6a000, size 69632)
last unloaded kext at 3594033251450: com.apple.iokit.IOUSBMassStorageDriver 1.0.0 (addr 0xffffff7f96d1e000, size 184320)
loaded kexts:
org.tw.CodecCommander 2.5.2
org.netkas.driver.FakeSMC 1707
com.apple.filesystems.smbfs 3.0.1
com.apple.driver.AudioAUUC 1.70
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AppleMCCSControl 1.2.13
com.apple.GeForce 10.1.0
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleHDA 274.12
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.pmtelemetry 1
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.iokit.IOBluetoothSerialManager 4.4.6f1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHV 1
com.apple.driver.AppleLPC 3.1
com.apple.driver.Apple16X50ACPI 3.2
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.iokit.SCSITaskUserClient 3.7.7
com.apple.driver.AppleRAID 5.1.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.BootCache 38
com.apple.iokit.IOAHCIBlockStorage 2.8.5
com.apple.driver.AppleFWOHCI 5.5.4
com.apple.iokit.AppleIntelI210Ethernet 2.2.1b3
com.apple.driver.AppleAHCIPort 3.1.8
com.apple.driver.usb.AppleUSBEHCIPCI 1.0.1
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleACPIButtons 4.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleAPIC 1.7
com.apple.nke.applicationfirewall 163
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleSMBusController 1.0.14d1
com.apple.iokit.IOSMBusFamily 1.1
com.apple.iokit.IOAcceleratorFamily2 205.11
com.apple.nvidia.driver.NVDAGK100Hal 10.1.0
com.apple.nvidia.driver.NVDAResman 10.1.0
com.apple.AppleGraphicsDeviceControl 3.12.8
com.apple.kext.triggers 1.0
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.driver.DspFuncLib 274.12
com.apple.kext.OSvKernDSPLib 525
com.apple.driver.AppleHDAController 274.12
com.apple.iokit.IOHDAFamily 274.12
com.apple.iokit.IOSurface 108.2.3
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOBluetoothFamily 4.4.6f1
com.apple.driver.CoreCaptureResponder 1
com.apple.driver.corecapture 1.0.4
com.apple.iokit.IOAudioFamily 204.4
com.apple.vecLib.kext 1.2.0
com.apple.driver.Apple16X50Serial 3.2
com.apple.iokit.IOSerialFamily 11
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 6.0.0d7
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.iokit.IOAHCISerialATAPI 2.6.2
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.7
com.apple.driver.usb.IOUSBHostHIDDevice 1.0.1
com.apple.driver.usb.cdc 5.0.0
com.apple.driver.usb.networking 5.0.0
com.apple.driver.usb.AppleUSBHostCompositeDevice 1.0.1
com.apple.driver.usb.AppleUSBHub 1.0.1
com.apple.iokit.IOFireWireFamily 4.6.1
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOUSBFamily 900.4.1
com.apple.iokit.IOAHCIFamily 2.8.1
com.apple.driver.usb.AppleUSBEHCI 1.0.1
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.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 417.4
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