MA356硬件升级到双X5365 ， HD7950 刷EFI bios改电阻，内存升级到8x8g，升级固件到 Macpro2,1 。然后在Lion下一切正常，毫无问题，装了windows烤鸡也非常正常，然而不管是制作了替换EFI的 10.10.5 还是直接用pikify脚本制作的10.11.6 ，安装过程都正常，装好后进入系统就各种死机四国，找个典型的报错如下：
我奇怪的事情是，如果说硬件有问题，那么10.7.5非常稳定，windows也毫无问题，如果说硬件没问题，那yosemite和el captain是怎么回事？
快疯了啊
Tue Feb 20 09:05:56 2018
panic(cpu 4 caller 0xffffff801e1f77b3): "TLB invalidation IPI timeout: " "CPU(s) failed to respond to interrupts, unresponsive CPU bitmap: 0x2, NMIPI acks: orig: 0x0, now: 0x0"@/SourceCache/xnu/xnu-2782.40.9/osfmk/x86_64/pmap.c:2480
Backtrace (CPU 4), Frame : Return Address
0xffffff8666f8b840 : 0xffffff801e12ad21
0xffffff8666f8b8c0 : 0xffffff801e1f77b3
0xffffff8666f8b950 : 0xffffff801e1fdaa3
0xffffff8666f8ba40 : 0xffffff801e1fe775
0xffffff8666f8baa0 : 0xffffff801e1ac625
0xffffff8666f8bbb0 : 0xffffff801e1a22ac
0xffffff8666f8bbe0 : 0xffffff801e1c5301
0xffffff8666f8bc20 : 0xffffff801e38933d
0xffffff8666f8bd20 : 0xffffff801e53e70a
0xffffff8666f8bdb0 : 0xffffff801e364141
0xffffff8666f8be50 : 0xffffff801e5eba4a
0xffffff8666f8bef0 : 0xffffff801e5eb7b3
0xffffff8666f8bf50 : 0xffffff801e64b376
0xffffff8666f8bfb0 : 0xffffff801e2344a6
BSD process name corresponding to current thread: mdworker
Mac OS version:
14F27
Kernel version:
Darwin Kernel Version 14.5.0: Wed Jul 29 02:26:53 PDT 2015; root:xnu-2782.40.9~1/RELEASE_X86_64
Kernel UUID: 58F06365-45C7-3CA7-B80D-173AFD1A03C4
Kernel slide: 0x000000001de00000
Kernel text base: 0xffffff801e000000
__HIB text base: 0xffffff801df00000
System model name: MacPro2,1 (Mac-F4208DC8)
System uptime in nanoseconds: 35032673955
last loaded kext at 32906163750: com.apple.driver.AudioAUUC 1.70 (addr 0xffffff7fa0960000, size 28672)
loaded kexts:
com.apple.driver.AudioAUUC 1.70
com.apple.filesystems.ntfs 3.13
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.driver.AppleMCCSControl 1.2.12
com.apple.kext.AMDFramebuffer 1.3.2
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHDAHardwareConfigDriver 272.18.1
com.apple.driver.AppleTyMCEDriver 1.0.2d2
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleHDA 272.18.1
com.apple.AMDRadeonX4000 1.3.2
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleHV 1
com.apple.driver.AppleIntel8254XEthernet 3.1.4b1
com.apple.kext.AMD7000Controller 1.3.2
com.apple.driver.AppleLPC 1.7.3
com.apple.driver.AppleMCEDriver 1.1.9
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.AppleFIVRDriver 4.1.0
com.apple.filesystems.autofs 3.0
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.7.1
com.apple.iokit.IOAHCIPassThrough 1.0.3
com.apple.driver.AppleUSBDisplays 372.1
com.apple.iokit.SCSITaskUserClient 3.7.5
com.apple.driver.AppleFileSystemDriver 3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.BootCache 36
com.apple.driver.AppleUSBHub 705.4.2
com.apple.driver.AppleFWOHCI 5.5.2
com.apple.driver.AppleAHCIPort 3.1.2
com.apple.driver.AppleIntelPIIXATA 2.5.1
com.apple.driver.AppleUSBEHCI 705.4.14
com.apple.driver.AppleUSBUHCI 656.4.1
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 3.1
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.iokit.IOSurface 97.4
com.apple.iokit.IOBluetoothFamily 4.3.6f3
com.apple.driver.DspFuncLib 272.18.1
com.apple.kext.OSvKernDSPLib 1.15
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOAcceleratorFamily2 156.16
com.apple.driver.AppleHDAController 272.18.1
com.apple.iokit.IOHDAFamily 272.18.1
com.apple.iokit.IOAudioFamily 203.3
com.apple.vecLib.kext 1.2.0
com.apple.kext.AMDSupport 1.3.2
com.apple.AppleGraphicsDeviceControl 3.10.25
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.iokit.IONetworkingFamily 3.2
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.9.1d7
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.kext.triggers 1.0
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.driver.AppleUSBHIDKeyboard 176.2
com.apple.driver.AppleHIDKeyboard 176.2
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.iokit.IOUSBHIDDriverPM 710.4.7
com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.5
com.apple.iokit.IOUSBMassStorageClass 3.7.2
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.5
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOATAPIProtocolTransport 3.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.5
com.apple.iokit.IOFireWireFamily 4.5.8
com.apple.iokit.IOAHCIFamily 2.7.5
com.apple.iokit.IOATAFamily 2.5.3
com.apple.iokit.IOUSBFamily 720.4.4
com.apple.driver.AppleEFINVRAM 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.driver.AppleEFIRuntime 2.0
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 398
com.apple.iokit.IOStorageFamily 2.0
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 3.1
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.Libm 1
com.apple.kec.corecrypto 1.0
com.apple.kec.pthread 1

准备做个maverick再测试下

其实不用恍惚。这个应该不是硬件问题。。最大的可能就是散热问题。。曾经遇到过这样的故障表现。安装一切正常。。但是进入系统各种问题层出不穷。最后检查出来是处理器散热器中间的导热脂干枯了。。低版本系统的时候，机器资源应用不高，热量也小。所以没有什么问题。。但是装高版本系统之后，热量就多了。最明显的就是内存的热量升温非常快，哪怕不打开任何应用的情况下也是比低版本系统下要热的多。。所以，很无奈的给内存条贴上散热片翼翅。。
所以。你可以考虑拆下散热器，看看处理器上的导热脂是否干枯了。更换下导热脂。

最新发现，进入10.11和10.10的安全模式， 就完全不会有问题。难道是显卡原因？

换个其他显卡试试不就知道了，呵呵