Frequent restarts due to kernel panic crashes, late 2012 mac mini, paceapp kext?

Question

Every time I start my (refurbished 6,2) mac mini after it&#x27;s been off for a while (typically overnight), it restarts immediately during startup and I get the "your computer has restarted because of a problem" error message.  I can restart it without problems at that point, it all works as designed.  Until I leave it for several hours again, then I get the restart problem.  I&#x27;m concerned it has to do with the com.paceap.kext.pacesupport.snowleopard 5.9.1 kext, which clearly isn&#x27;t designed for Mountain Lion...  Or is it to do with the 16 GB of RAM I installed?  I checked the RAM with rember, came back clean.  Can anyone help me with this?  Here&#x27;s the output:Interval Since Last Panic Report:  4961 secPanics Since Last Report:          1Anonymous UUID:                    ***********Tue Dec 17 08:08:14 2013panic(cpu 0 caller 0xffffff80278a3022): "pmap_pv_remove(0xffffff8048b78c00,0x7fc875111000,0x80, 0x80000, 0xffffff81f7ed3cf4, 0xfffffeae24a14888): null pv_list!"@/SourceCache/xnu/xnu-2050.24.15/osfmk/i386/pmap_internal.h:753Backtrace (CPU 0), Frame : Return Address0xffffff81f7ed3bf0 : 0xffffff802781d626 0xffffff81f7ed3c60 : 0xffffff80278a3022 0xffffff81f7ed3d20 : 0xffffff80278a3585 0xffffff81f7ed3d70 : 0xffffff802786720c 0xffffff81f7ed3e60 : 0xffffff802786b0e0 0xffffff81f7ed3e90 : 0xffffff8027835d03 0xffffff81f7ed3ed0 : 0xffffff8027b566d7 0xffffff81f7ed3f40 : 0xffffff8027b56479 0xffffff81f7ed3f50 : 0xffffff8027be16aa 0xffffff81f7ed3fb0 : 0xffffff80278ce9c3 BSD process name corresponding to current thread: pcscdMac OS version:12E55Kernel version:Darwin Kernel Version 12.4.0: Wed May  1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36Kernel slide:     0x0000000027600000Kernel text base: 0xffffff8027800000System model name: Macmini6,2 (Mac-F65AE981FFA204ED)System uptime in nanoseconds: 25652224596last loaded kext at 25424635592: com.apple.driver.AudioAUUC          1.60 (addr 0xffffff7fa8b8b000, size 32768)loaded kexts:com.paceap.kext.pacesupport.snowleopard          5.9.1com.digidesign.fwfamily.driver          9.0f4com.apple.driver.AudioAUUC          1.60com.apple.driver.ApplePlatformEnabler          2.0.6d1com.apple.driver.AGPM          100.12.87com.apple.driver.X86PlatformShim          1.0.0com.apple.iokit.IOBluetoothSerialManager          4.1.4f2com.apple.driver.AppleMikeyHIDDriver          122com.apple.driver.AppleHDAHardwareConfigDriver          2.3.7fc4com.apple.driver.AppleHDA          2.3.7fc4com.apple.filesystems.autofs          3.0com.apple.iokit.IOBluetoothUSBDFU          4.1.4f2com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.1.4f2com.apple.driver.AppleUpstreamUserClient          3.5.10com.apple.driver.AppleMCCSControl          1.1.11com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0com.apple.driver.AppleMikeyDriver          2.3.7fc4com.apple.driver.AppleLPC          1.6.0com.apple.iokit.IOUserEthernet          1.0.0d1com.apple.Dont_Steal_Mac_OS_X          7.0.0com.apple.driver.ApplePolicyControl          3.4.5com.apple.driver.AppleIntelHD4000Graphics          8.1.2com.apple.driver.AppleIntelFramebufferCapri          8.1.2com.apple.driver.AppleMuxControl          3.4.5com.apple.driver.AppleSMCPDRC          1.0.0com.apple.driver.AppleIRController          320.15com.apple.driver.AppleFileSystemDriver          3.0.1com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1com.apple.BootCache          34com.apple.driver.XsanFilter          404com.apple.iokit.IOAHCIBlockStorage          2.3.1com.apple.driver.AppleUSBHub          5.5.5com.apple.driver.AppleFWOHCI          4.9.6com.apple.driver.AppleSDXC          1.4.2com.apple.iokit.AppleBCM5701Ethernet          3.6.1b4com.apple.driver.AirPort.Brcm4331          615.20.17com.apple.driver.AppleAHCIPort          2.5.2com.apple.driver.AppleUSBEHCI          5.5.0com.apple.driver.AppleUSBXHCI          5.6.0com.apple.driver.AppleEFINVRAM          1.7com.apple.driver.AppleRTC          1.5com.apple.driver.AppleACPIButtons          1.7com.apple.driver.AppleHPET          1.8com.apple.driver.AppleSMBIOS          1.9com.apple.driver.AppleACPIEC          1.7com.apple.driver.AppleAPIC          1.6com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0com.apple.nke.applicationfirewall          4.0.39com.apple.security.quarantine          2.1com.apple.driver.AppleIntelCPUPowerManagement          196.0.0com.apple.iokit.IOSerialFamily          10.0.6com.apple.driver.DspFuncLib          2.3.7fc4com.apple.kext.triggers          1.0com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.1.4f2com.apple.driver.AppleHDAController          2.3.7fc4com.apple.iokit.IOHDAFamily          2.3.7fc4com.apple.driver.AppleUSBAudio          2.9.0f8com.apple.iokit.IOFireWireIP          2.2.5com.apple.driver.IOPlatformPluginLegacy          1.0.0com.apple.driver.X86PlatformPlugin          1.0.0com.apple.iokit.IOAudioFamily          1.8.9fc11com.apple.kext.OSvKernDSPLib          1.6com.apple.iokit.IOFireWireAVC          4.2.2com.apple.iokit.IOSurface          86.0.4com.apple.iokit.IOBluetoothFamily          4.1.4f2com.apple.iokit.IOAcceleratorFamily          74.5.1com.apple.driver.AppleSMBusController          1.0.11d0com.apple.driver.AppleSMBusPCI          1.0.11d0com.apple.driver.AppleSMC          3.1.4d2com.apple.driver.AppleGraphicsControl          3.4.5com.apple.driver.AppleBacklightExpert          1.0.4com.apple.iokit.IONDRVSupport          2.3.7com.apple.iokit.IOGraphicsFamily          2.3.7com.apple.driver.IOPlatformPluginFamily          5.3.0d51com.apple.driver.AppleThunderboltEDMSink          1.1.8com.apple.driver.AppleThunderboltEDMSource          1.1.8com.apple.driver.AppleThunderboltDPOutAdapter          1.8.9com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.5com.apple.driver.AppleUSBMergeNub          5.5.5com.apple.driver.AppleThunderboltDPInAdapter          1.8.9com.apple.driver.AppleThunderboltDPAdapterFamily          1.8.9com.apple.driver.AppleThunderboltPCIDownAdapter          1.2.6com.apple.iokit.IOUSBHIDDriver          5.2.5com.apple.driver.AppleUSBComposite          5.2.5com.apple.driver.AppleThunderboltNHI          1.7.8com.apple.iokit.IOThunderboltFamily          2.4.0com.apple.iokit.IOFireWireFamily          4.5.5com.apple.iokit.IOEthernetAVBController          1.0.2b1com.apple.iokit.IOUSBUserClient          5.5.5com.apple.iokit.IO80211Family          530.4com.apple.iokit.IONetworkingFamily          3.0com.apple.iokit.IOAHCIFamily          2.3.1com.apple.iokit.IOUSBFamily          5.6.0com.apple.driver.AppleEFIRuntime          1.7com.apple.iokit.IOHIDFamily          1.8.1com.apple.iokit.IOSMBusFamily          1.1com.apple.security.sandbox          220.3com.apple.kext.AppleMatch          1.0.0d1com.apple.security.TMSafetyNet          7com.apple.driver.DiskImages          345com.apple.iokit.IOStorageFamily          1.8com.apple.driver.AppleKeyStore          28.21com.apple.driver.AppleACPIPlatform          1.7com.apple.iokit.IOPCIFamily          2.7.3com.apple.iokit.IOACPIFamily          1.4com.apple.kec.corecrypto          1.0Model: Macmini6,2, BootROM MM61.0106.B03, 4 processors, Intel Core i7, 2.3 GHz, 16 GB, SMC 2.8f1Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In, 768 MBMemory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x8394, 0x393732303338412028393737303338412900Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x8394, 0x393732303338412028393737303338412900AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x10E), Broadcom BCM43xx 1.0 (5.106.98.100.17)Bluetooth: Version 4.1.4f2 12041, 2 service, 11 devices, 1 incoming serial portsNetwork Service: Wi-Fi, AirPort, en1Serial ATA Device: APPLE HDD HTS541010A9E662, 1 TBUSB Device: hub_device, 0x8087  (Intel Corporation), 0x0024, 0x1a100000 / 2USB Device: hub_device, 0x0409  (NEC Corporation), 0x0050, 0x1a130000 / 3USB Device: USB Uno MIDI Interface, 0x0763  (M-Audio), 0x0150, 0x1a131000 / 8USB Device: Hub in Apple Extended USB Keyboard, apple_vendor_id, 0x1003, 0x1a133000 / 5USB Device: iLok, 0x088e, 0x5036, 0x1a133200 / 7USB Device: DELL USB Laser Mouse, 0x046d  (Logitech Inc.), 0xc063, 0x1a133100 / 6USB Device: Apple Extended USB Keyboard, apple_vendor_id, 0x020b, 0x1a133300 / 4USB Device: hub_device, 0x8087  (Intel Corporation), 0x0024, 0x1d100000 / 2USB Device: hub_device, 0x0424  (SMSC), 0x2512, 0x1d180000 / 3USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x1d182000 / 5USB Device: BRCM20702 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0x1d181000 / 4USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x828a, 0x1d181300 / 8FireWire Device: Mbox 2 Pro, DIGIDESIGN, 400mbit_speed

K Shaffer · Answer

If the RAM was added after you bought the computer, have you tried reverting to the chips that were in the computer when you first bought it? From one reliable source the chip nomenclature is as follows:2 - 204-pin PC3-12800 (1600 MHz) DDR3 SO-DIMM {to 16GB}There may be a software you&#x27;ve installed that could cause a kernel panic.Sometimes the RAM specs of products installed are similar but not correct in an upgrade, or in rare instances there may be a defect. I could not tell from the report information you posted above if the matter was related to RAM, however. Memory specs &amp; upgrade:http://support.apple.com/kb/HT5475Was there some other change you&#x27;d made to the computer, on or about the time this symptom started? Any third-party software you&#x27;d installed at a time the issue started should be seriously looked into and if needed, use their uninstaller to be rid of it.You should detach or unplug external devices not necessary in the troubleshooting of the Mini, then proceed to see if the report or condition changes. Could be a defective peripheral and not an internal component. Also, if you can&#x27;t get past this matter, you may have to see about getting an appointment with a Genius or product specialist at an Apple Store, or authorized reseller with factory trained service staff.Good luck &amp; happy computing! 🙂{edited}

lllaass · Answer

I suspect the memory. Do you have the old memory you can reinstall and see if you still have the problem?Was the new memory specifically identified  as being compatible with your Mini?

BDAqua · Answer

I suspect the pace thing myself.One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications&gt;Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...PS. Safe boot may stay on the gray radian for a long time, let it go, it&#x27;s trying to repair the Hard DriveReboot, test again.If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences&gt;Accounts (Users &amp; Groups in later OSX versions)&gt;Login Items window to see if it or something relevant is listed.Check the System Preferences&gt;Other Row, for 3rd party Pref Panes.Also look in these if they exist, some are invisible.../private/var/run/StartupItems/Library/StartupItems/System/Library/StartupItems/System/Library/LaunchDaemons/Library/LaunchDaemons

rack0 tack0 · Answer

You certainley need to suspect the com.paceap.kext.pacesupport.snowleopard module, is there a later version?Otherwise follow BDAquas advice.

OutrageousPotato · Answer

Hello, did you ever get this issue resolved? I&#x27;ve been having the same exact problem on my 2009 iMac after upgrading the memory, and  the com.paceap.kext.pacesupport.snowleopard  5.9.1 kext is one others have suggested as a potential problem in my crash report as well. I don&#x27;t even know what it is.

Drew Reece · Answer

Apps use &#x27;reverse domain name notation&#x27;, it&#x27;s not difficult to see where they come from if the developer is filling out the fields correctly in Xcode.com.paceap.kext.pacesupport.snowleopardhttps://www.paceap.comPace is part of DRM/ anti piracy/ bs that is bundled with certain software. You would need to hunt through old receipts for an indication of what installed it.You may not need it, however if you run old software &amp; just migrate to new OS&#x27;s there is no telling how many old bits of code you need to work.