Mac mini reboot

My Mac mini reboots right out of the blue.

Here is the report that is generated, and I need help figuring out what needs to be changed so that it won't reboot out of the blue.

I don't know where to start.

Thanks

Dave

Anonymous UUID: 04170383-5577-1059-6C64-E39AA661A73C

Fri May 29 13:27:14 2015

panic(cpu 0 caller 0xffffff8009cbc8ec): "complete() while dma active"@/SourceCache/xnu/xnu-2422.115.4/iokit/Kernel/IOMemoryDescriptor.cpp:262 0

Backtrace (CPU 0), Frame : Return Address

0xffffff81c9c7bc10 : 0xffffff8009822f79

0xffffff81c9c7bc90 : 0xffffff8009cbc8ec

0xffffff81c9c7bcd0 : 0xffffff7f89dfab06

0xffffff81c9c7bd10 : 0xffffff7f89df0ab2

0xffffff81c9c7bd60 : 0xffffff7f8a2272ca

0xffffff81c9c7bdb0 : 0xffffff7f8a22ac3a

0xffffff81c9c7be00 : 0xffffff7f89e88114

0xffffff81c9c7be50 : 0xffffff7f89e8218e

0xffffff81c9c7bea0 : 0xffffff7f89e8225c

0xffffff81c9c7bed0 : 0xffffff7f8a50b2c3

0xffffff81c9c7bf20 : 0xffffff800984a20a

0xffffff81c9c7bfb0 : 0xffffff80098d7607

Kernel Extensions in backtrace:

com.apple.iokit.IOStorageFamily(1.9)[9B09B065-7F11-3241-B194-B72E5C23548B]@0xff ffff7f89ded000->0xffffff7f89e11fff

com.apple.iokit.IOSCSIArchitectureModelFamily(3.6.7)[9E10AF10-FA6C-3261-B939-5D 0BC025ED9E]@0xffffff7f89e7d000->0xffffff7f89ea7fff

com.apple.iokit.IOUSBAttachedSCSI(1.0.5)[56C0DC48-4C2F-3446-BDB2-4861962FF5EE]@ 0xffffff7f8a508000->0xffffff7f8a50ffff

dependency: com.apple.iokit.IOUSBFamily(686.4.1)[815E4F64-F2D5-3847-931A-BE755698D993]@0xff ffff7f8a344000

dependency: com.apple.iokit.IOStorageFamily(1.9)[9B09B065-7F11-3241-B194-B72E5C23548B]@0xff ffff7f89ded000

dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(3.6.7)[9E10AF10-FA6C-3261-B939-5D 0BC025ED9E]@0xffffff7f89e7d000

com.apple.iokit.IOSCSIBlockCommandsDevice(3.6.7)[EF296673-2159-39B8-8A9C-4010FF BF952E]@0xffffff7f8a226000->0xffffff7f8a23afff

dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(3.6.7)[9E10AF10-FA6C-3261-B939-5D 0BC025ED9E]@0xffffff7f89e7d000

dependency: com.apple.iokit.IOStorageFamily(1.9)[9B09B065-7F11-3241-B194-B72E5C23548B]@0xff ffff7f89ded000

BSD process name corresponding to current thread: kernel_task

Mac OS version:

13F34

Kernel version:

Darwin Kernel Version 13.4.0: Sun Aug 17 19:50:11 PDT 2014; root:xnu-2422.115.4~1/RELEASE_X86_64

Kernel UUID: 9477416E-7BCA-3679-AF97-E1EAAD3DD5A0

Kernel slide: 0x0000000009600000

Kernel text base: 0xffffff8009800000

System model name: Macmini6,2 (Mac-F65AE981FFA204ED)

System uptime in nanoseconds: 5359026642744

last loaded kext at 259081818878: com.apple.filesystems.msdosfs 1.9 (addr 0xffffff7f8b740000, size 65536)

last unloaded kext at 320099616212: com.apple.driver.AppleFileSystemDriver 3.0.1 (addr 0xffffff7f8b611000, size 8192)

loaded kexts:

1. com.apple.driver.AudioAUUC 1.60
2. com.apple.driver.AGPM 100.14.34
3. com.apple.driver.ApplePlatformEnabler 2.0.9d7
4. com.apple.driver.X86PlatformShim 1.0.0
5. com.apple.driver.AppleUSBDisplays 360.8.14
6. com.apple.filesystems.autofs 3.0
7. com.apple.iokit.IOBluetoothSerialManager 4.2.7f3
8. com.apple.driver.AppleMikeyHIDDriver 124
9. com.apple.driver.AppleUpstreamUserClient 3.5.13
10. com.apple.driver.AppleHDA 2.6.3f4
11. com.apple.driver.AppleMCCSControl 1.2.5
12. com.apple.driver.AppleMikeyDriver 2.6.3f4
13. com.apple.iokit.IOUserEthernet 1.0.0d1
14. com.apple.driver.AppleIntelHD4000Graphics 8.2.8
15. com.apple.driver.AppleLPC 1.7.0
16. com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.7f3
17. com.apple.Dont_Steal_Mac_OS_X 7.0.0
18. com.apple.driver.AppleHWAccess 1
19. com.apple.driver.AppleIntelFramebufferCapri 8.2.8
20. com.apple.driver.AppleSMCPDRC 1.0.0
21. com.apple.driver.AppleThunderboltIP 1.1.2
22. com.apple.iokit.IOUSBAttachedSCSI 1.0.5
23. com.apple.iokit.SCSITaskUserClient 3.6.7
24. com.apple.driver.AppleUSBODD 3.4.1
25. com.apple.driver.AppleIRController 325.7
26. com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
27. com.apple.AppleFSCompression.AppleFSCompressionTypeLZVN 1.0.0d1
28. com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
29. com.apple.BootCache 35
30. com.apple.driver.XsanFilter 404
31. com.apple.iokit.IOAHCIBlockStorage 2.6.0
32. com.apple.driver.AppleUSBHub 683.4.0
33. com.apple.driver.AppleSDXC 1.5.2
34. com.apple.iokit.AppleBCM5701Ethernet 3.8.1b2
35. com.apple.driver.AirPort.Brcm4331 700.20.22
36. com.apple.driver.AppleFWOHCI 5.0.2
37. com.apple.driver.AppleAHCIPort 3.0.5
38. com.apple.driver.AppleUSBEHCI 660.4.0
39. com.apple.driver.AppleUSBXHCI 683.4.0
40. com.apple.driver.AppleACPIButtons 2.0
41. com.apple.driver.AppleRTC 2.0
42. com.apple.driver.AppleHPET 1.8
43. com.apple.driver.AppleSMBIOS 2.1
44. com.apple.driver.AppleACPIEC 2.0
45. com.apple.driver.AppleAPIC 1.7
46. com.apple.driver.AppleIntelCPUPowerManagementClient 217.92.1
47. com.apple.nke.applicationfirewall 153
48. com.apple.security.quarantine 3
49. com.apple.driver.AppleIntelCPUPowerManagement 217.92.1
50. com.apple.driver.AppleUSBAudio 2.9.5f8
51. com.apple.kext.triggers 1.0
52. com.apple.iokit.IOSerialFamily 10.0.7
53. com.apple.driver.DspFuncLib 2.6.3f4
54. com.apple.vecLib.kext 1.0.0
55. com.apple.iokit.IOAudioFamily 1.9.7fc2
56. com.apple.kext.OSvKernDSPLib 1.14
57. com.apple.iokit.IOSurface 91.1
58. com.apple.iokit.IOFireWireIP 2.2.6
59. com.apple.iokit.IOBluetoothFamily 4.2.7f3
60. com.apple.driver.AppleSMBusController 1.0.12d1
61. com.apple.iokit.IONDRVSupport 2.4.1
62. com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.7f3
63. com.apple.driver.AppleHDAController 2.6.3f4
64. com.apple.iokit.IOHDAFamily 2.6.3f4
65. com.apple.iokit.IOAcceleratorFamily2 98.23
66. com.apple.AppleGraphicsDeviceControl 3.6.22
67. com.apple.iokit.IOGraphicsFamily 2.4.1
68. com.apple.driver.AppleSMBusPCI 1.0.12d1
69. com.apple.driver.X86PlatformPlugin 1.0.0
70. com.apple.driver.AppleSMC 3.1.8
71. com.apple.driver.IOPlatformPluginFamily 5.7.1d6
72. com.apple.iokit.IOSCSIBlockCommandsDevice 3.6.7
73. com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.6.7
74. com.apple.iokit.IOBDStorageFamily 1.7
75. com.apple.iokit.IODVDStorageFamily 1.7.1
76. com.apple.iokit.IOCDStorageFamily 1.7.1
77. com.apple.iokit.IOUSBMassStorageClass 3.6.0
78. com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.7
79. com.apple.driver.AppleUSBHIDKeyboard 170.15
80. com.apple.driver.AppleHIDKeyboard 170.15
81. com.apple.driver.AppleUSBMergeNub 650.4.0
82. com.apple.driver.AppleThunderboltDPInAdapter 3.1.7
83. com.apple.driver.AppleThunderboltDPAdapterFamily 3.1.7
84. com.apple.driver.AppleThunderboltPCIDownAdapter 1.4.5
85. com.apple.iokit.IOUSBHIDDriver 660.4.0
86. com.apple.driver.AppleUSBComposite 656.4.1
87. com.apple.driver.AppleThunderboltNHI 2.0.1
88. com.apple.iokit.IOThunderboltFamily 3.3.1
89. com.apple.iokit.IOEthernetAVBController 1.0.3b4
90. com.apple.driver.mDNSOffloadUserClient 1.0.1b5
91. com.apple.iokit.IOUSBUserClient 660.4.2
92. com.apple.iokit.IO80211Family 640.36
93. com.apple.iokit.IONetworkingFamily 3.2
94. com.apple.iokit.IOFireWireFamily 4.5.5
95. com.apple.iokit.IOAHCIFamily 2.6.5
96. com.apple.iokit.IOUSBFamily 686.4.1
97. com.apple.driver.AppleEFINVRAM 2.0
98. com.apple.iokit.IOHIDFamily 2.0.0
99. com.apple.driver.AppleEFIRuntime 2.0
100. com.apple.iokit.IOSMBusFamily 1.1
101. com.apple.security.sandbox 278.11.1
102. com.apple.kext.AppleMatch 1.0.0d1
103. com.apple.security.TMSafetyNet 7
104. com.apple.driver.AppleKeyStore 2
105. com.apple.driver.DiskImages 371.1
106. com.apple.iokit.IOStorageFamily 1.9
107. com.apple.iokit.IOReportFamily 23
108. com.apple.driver.AppleFDEKeyStore 28.30
109. com.apple.driver.AppleACPIPlatform 2.0
110. com.apple.iokit.IOPCIFamily 2.9
111. com.apple.iokit.IOACPIFamily 1.4
112. com.apple.kec.pthread 1
113. com.apple.kec.corecrypto 1.0

Model: Macmini6,2, BootROM MM61.0106.B03, 4 processors, Intel Core i7, 2.6 GHz, 16 GB, SMC 2.8f1

Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In

Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738424255302D474E2D4620

Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x45424A3831554738424255302D474E2D4620

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x10E), Broadcom BCM43xx 1.0 (5.106.98.100.22)

Bluetooth: Version 4.2.7f3 14616, 3 services, 23 devices, 1 incoming serial ports

Network Service: Ethernet, Ethernet, en0

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: APPLE HDD HTS541010A9E662, 1 TB

USB Device: Backup+ Desk Mac

USB Device: Hub

USB Device: Hub

USB Device: Comfort Mouse 6000

USB Device: Logitech Camera

USB Device: Apple Cinema Display

USB Device: Hub

USB Device: Apple USB SuperDrive

USB Device: Keyboard Hub

USB Device: USB UltraPro

USB Device: Apple Keyboard

USB Device: Hub

USB Device: IR Receiver

USB Device: BRCM20702 Hub

USB Device: Bluetooth USB Host Controller

Thunderbolt Bus: Mac mini, Apple Inc., 23.4