电脑硬盘问题。一般第三方硬盘容易出这类问题。
固态硬盘接触不良，下固态硬盘，重新固定安装就好了。我的电脑一周出现两次这样的问题。出现这样的问题，可以换一个固态硬盘转接头，避免电脑来回移动震动电脑。
我的电脑是Macbook Air硬盘是第三方硬盘，至从升级到最新的macOS Big Sur版本11.4后经常出现电脑自动重启问题。今天重启了几十遍，给它吹风扇。把电脑启动时的自动加载项去掉好的多，当运行大程序电脑卡时同样存在电脑重启。甚至电脑自己进入睡眠模式还会重启。
从苹果支持网站给出的问题及部分作者给出的临时解决方案，知道是硬盘问题。
我通过卸掉电脑硬盘，擦拭金手指，然后安装上硬盘。卸载掉电风扇除灰尘后安装上就好了。
若是电脑硬盘兼容问题的解决方案有两个：
解决方案一，执行以下命令，看看效果：
jgs:~ mac$ sudo pmset -a hibernatemode 25 Password: jgs:~ mac$ sudo pmset standbydelayhigh 300
方案二，若方案一不行就执行以下命令，该方案存在放置超过设定时间后可能有文件丢失的风险：
sudo pmset standby 0
以下是方案一的解释。
2020.1.29更新：建议经费充足的朋友直接买Intel 760p、Intel 7600P、Intel 660p、西数SN720这四款固态硬盘。实测这四种固态硬盘均无需调整pmset参数，直接能在hibernatemode=3模式下完美休眠。其中7600p功耗比原装更低，发热量更小。
2020.2.2更新：暂时不要升级Catalina，休眠有问题！
型号：A1466, Macbook Air early 2015, 4G 内存
OS: Mojave 10.14.5
升级ssd型号：建兴LITEON CA3-8D512
众所周知，自己动手升级非官方的SSD最害怕遇到休眠睡死问题。大家经常用pmset命令来将hibernatemode改为25。然而实际上这是个治标不治本的方法。hibernatemode受standbydelayhigh和standbydelaylow两个参数限制。其原理应该是在hibernatemode 3情形下，其休眠受standbydelayhigh和standbydelaylow的两个数值之间的某个时间点，机器自动将内存里的数据写入到硬盘。而第三方的硬盘往往无法在此过程中被识别出来，导致了长时间休眠后睡死唤不醒。
测试到底第三方ssd能否完美兼容的方法很简单：
1、查询现有电源模式
pmset -g custom
应该可以看到默认情况下，standbydelayhigh = 86400 （24小时）， standbydelaylow=10800(3小时）
2、修改hibernatemode为25
sudo pmset -a hibernatemode 25
这个步骤做完了应该看起来休眠问题解决了，其实不然。
3、调整standbydelayhigh和standbydelaylow两个参数
sudo pmset standbydelayhigh 300
300单位是秒，可以调成任何一个时间。注意两个参数一大一小。
4、合盖休眠到300秒后打开看下是不是睡死的问题又来了？
那么，反其道而行之，对于不支持hibernatemode 3的第三方SSD，我们可以在设置hibernatemode为25的同时将这两个参数设置成较大的数值，然后避免在日常使用中电脑进入休眠状态。这样能一定程度上解决睡死问题。代价是唤醒比较慢，同时放置超过设定时间后可能有文件丢失的风险。
附录：关于pmset参数，可以用man pmset查看：
hibernatemode = 0 (binary 0000) by default on supported desktops. The system will not back memory up to persistent storage. The system must wake from the contents of memory; the system will lose context on power loss. This is, historically, plain old sleep. hibernatemode = 3 (binary 0011) by default on supported portables. The system will store a copy of memory to persistent storage (the disk), and will power memory during sleep. The system will wake from memory, unless a power loss forces it to restore from disk image. hibernatemode = 25 (binary 0001 1001) is only settable via pmset. The system will store a copy of memory to persistent storage (the disk), and will remove power to memory. The system will restore from disk image. If you want "hibernation" - slower sleeps, slower wakes, and better battery life, you should use this setting.
具体执行如下：
jgs:~ mac$ pmset -g custom Battery Power: lidwake 1 autopoweroff 1 standbydelayhigh 86400 autopoweroffdelay 259200 standbydelaylow 10800 standby 1 hibernatemode 3 powernap 0 gpuswitch 2 ttyskeepawake 1 hibernatefile /var/vm/sleepimage highstandbythreshold 50 displaysleep 2 sleep 1 lessbright 1 halfdim 1 acwake 0 disksleep 10 AC Power: lidwake 1 autopoweroff 1 standbydelayhigh 86400 autopoweroffdelay 259200 standbydelaylow 10800 standby 1 hibernatemode 3 powernap 1 gpuswitch 2 ttyskeepawake 1 hibernatefile /var/vm/sleepimage highstandbythreshold 50 womp 1 displaysleep 10 networkoversleep 0 sleep 1 acwake 0 halfdim 1 disksleep 10 jgs:~ mac$ sudo pmset -a hibernatemode 25 Password: jgs:~ mac$ sudo pmset standbydelayhigh =300 Usage: pmset <options> See pmset(1) for details: 'man pmset' jgs:~ mac$ jgs:~ mac$ sudo pmset standbydelayhigh 300
panic(cpu 0 caller 0xffffff801e4ce860): nvme: "Fatal error occurred. CSTS=0xffffffff US[1]=0x0 US[0]=0xd8 VID=0x1179 DID=0x11a . FW Revision=10604103\n"@/System/Volumes/Data/SWE/macOS/BuildRoots/e90674e518/Library/Caches/com.apple.xbs/Sources/IONVMeFamily/IONVMeFamily-557.120.1/Common/IONVMeController.cpp:5499 Backtrace (CPU 0), Frame : Return Address 0xffffffb0a8403960 : 0xffffff801bc8e0dd 0xffffffb0a84039b0 : 0xffffff801bdd4f33 0xffffffb0a84039f0 : 0xffffff801bdc552a 0xffffffb0a8403a40 : 0xffffff801bc32a2f 0xffffffb0a8403a60 : 0xffffff801bc8d8fd 0xffffffb0a8403b80 : 0xffffff801bc8dbf3 0xffffffb0a8403bf0 : 0xffffff801c49d81a 0xffffffb0a8403c60 : 0xffffff801e4ce860 0xffffffb0a8403c80 : 0xffffff801e4b345b 0xffffffb0a8403de0 : 0xffffff801c3f4465 0xffffffb0a8403e50 : 0xffffff801c3f4366 0xffffffb0a8403e80 : 0xffffff801bcd46c5 0xffffffb0a8403ef0 : 0xffffff801bcd5634 0xffffffb0a8403fa0 : 0xffffff801bc3213e Kernel Extensions in backtrace: com.apple.iokit.IONVMeFamily(2.1)[38BC0D0C-B305-30F6-8A8D-6804830F891A]@0xffffff801e4ac000->0xffffff801e4d5fff dependency: com.apple.driver.AppleEFINVRAM(2.1)[423BF733-A622-3BC9-8F0F-920A2927CD35]@0xffffff801d0fe000->0xffffff801d107fff dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[366C7BD4-9502-3D1C-ABBE-DE9749913D0C]@0xffffff801d2c0000->0xffffff801d2d5fff dependency: com.apple.iokit.IOPCIFamily(2.9)[99A70889-A31C-3B25-8E88-ADD3F317E4E4]@0xffffff801e76a000->0xffffff801e792fff dependency: com.apple.iokit.IOReportFamily(47)[367CCAE7-DAB4-3424-B191-44044619D5CB]@0xffffff801e7a1000->0xffffff801e7a3fff dependency: com.apple.iokit.IOStorageFamily(2.1)[A0D72FE9-649B-316A-8B5C-934E295FF0B5]@0xffffff801e86d000->0xffffff801e87efff Process name corresponding to current thread: kernel_task Mac OS version: 20F71 Kernel version: Darwin Kernel Version 20.5.0: Sat May 8 05:10:33 PDT 2021; root:xnu-7195.121.3~9/RELEASE_X86_64 Kernel UUID: 52A1E876-863E-38E3-AC80-09BBAB13B752 KernelCache slide: 0x000000001ba00000 KernelCache base: 0xffffff801bc00000 Kernel slide: 0x000000001ba10000 Kernel text base: 0xffffff801bc10000 __HIB text base: 0xffffff801bb00000 System model name: MacBookAir7,2 (Mac-937CB26E2E02BB01) System shutdown begun: NO Panic diags file available: YES (0x0) Hibernation exit count: 0 System uptime in nanoseconds: 1300298973133 Last Sleep: absolute base_tsc base_nano Uptime : 0x0000012ebfdbca93 Sleep : 0x0000000000000000 0x0000000000000000 0x0000000000000000 Wake : 0x0000000000000000 0x00000005db81d622 0x0000000000000000 last started kext at 146758265328: @filesystems.smbfs 3.6 (addr 0xffffff7fb753a000, size 487424) loaded kexts: @filesystems.smbfs 3.6 |IO!BSerialManager 8.0.5d7 >!AUpstreamUserClient 3.6.8 >AudioAUUC 1.70 @fileutil 20.036.15 >AGPM 122.1 >!APlatformEnabler 2.7.0d0 >X86PlatformShim 1.0.0 @filesystems.autofs 3.0 @filesystems.ntfs 3.14.3 >!AGraphicsDevicePolicy 6.3.3 >!AHDAHardwareConfigDriver 283.15 @AGDCPluginDisplayMetrics 6.3.3 >!AHDA 283.15 >pmtelemetry 1 |IOUserEthernet 1.0.1 >usb.!UUserHCI 1 >!ASMCLMU 212 @Dont_Steal_Mac_OS_X 7.0.0 >!A!IBDWGraphics 16.0.4 >!AThunderboltIP 4.0.3 >!AHV 1 >!ADiskImages2 1 >eficheck 1 >AGDCBacklightControl 6.3.3 >!ABacklight 180.3 >!A!IBDWGraphicsFramebuffer 16.0.4 >!AMCCSControl 1.14 >!AFIVRDriver 4.1.0 >!ALPC 3.1 >ACPI_SMC_PlatformPlugin 1.0.0 >!ACameraInterface 7.6.0 >!A!ISlowAdaptiveClocking 4.0.0 |IO!BUSBDFU 8.0.5d7 |SCSITaskUserClient 436.121.1 >!UCardReader 511.120.2 >!AFileSystemDriver 3.0.1 @filesystems.tmpfs 1 @filesystems.hfs.kext 556.100.11 @BootCache 40 @!AFSCompression.!AFSCompressionTypeZlib 1.0.0 @!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1 >!ATopCaseHIDEventDriver 4050.1 @filesystems.apfs 1677.120.9 >AirPort.BrcmNIC 1400.1.1 @private.KextAudit 1.0 >!ARTC 2.0 >!ASmartBatteryManager 161.0.0 >!AACPIButtons 6.1 >!AHPET 1.8 >!ASMBIOS 2.1 >!AACPIEC 6.1 >!AAPIC 1.7 @!ASystemPolicy 2.0.0 @nke.applicationfirewall 311 |IOKitRegistryCompatibility 1 |EndpointSecurity 1 |IOSerial!F 11 @kext.triggers 1.0 >!AGraphicsControl 6.3.3 >DspFuncLib 283.15 @kext.OSvKernDSPLib 529 |IOAVB!F 940.4 |IOEthernetAVB!C 1.1.0 @plugin.IOgPTPPlugin 985.2 >!ABacklightExpert 1.1.0 |IONDRVSupport 585.1 |IOAccelerator!F2 442.9 @!AGPUWrangler 6.3.3 @!AGraphicsDeviceControl 6.3.3 >!ASMBus!C 1.0.18d1 >!AHDA!C 283.15 |IOHDA!F 283.15 |IOGraphics!F 585.1 |IOAudio!F 300.6.1 @vecLib.kext 1.2.0 >!ASMBusPCI 1.0.14d1 >IOPlatformPluginLegacy 1.0.0 >X86PlatformPlugin 1.0.0 >IOPlatformPlugin!F 6.0.0d8 |IOSlowAdaptiveClocking!F 1.0.0 >!AThunderboltEDMSink 5.0.3 >!AThunderboltDPOutAdapter 8.1.4 >usb.cdc.ecm 5.0.0 >usb.cdc.ncm 5.0.0 |Broadcom!BHost!CUSBTransport 8.0.5d7 |IO!BHost!CUSBTransport 8.0.5d7 |IO!BHost!CTransport 8.0.5d7 >usb.IOUSBHostHIDDevice 1.2 >usb.!UHub 1.2 >!UMergeNub 900.4.2 >usb.cdc 5.0.0 >usb.networking 5.0.0 >usb.!UHostCompositeDevice 1.2 >!AThunderboltDPInAdapter 8.1.4 >!AThunderboltDPAdapter!F 8.1.4 >!AThunderboltPCIDownAdapter 4.1.1 >!ABSDKextStarter 3 |IOSurface 290.8.1 @filesystems.hfs.encodings.kext 1 >!AMultitouchDriver 4440.3 >!AInputDeviceSupport 4400.35 >!AHS!BDriver 4050.1 >IO!BHIDDriver 8.0.5d7 >!AHIDKeyboard 224 >!AHSSPIHIDDriver 61 >!AXsanScheme 3 |IONVMe!F 2.1.0 >!AThunderboltNHI 7.2.8 |IOThunderbolt!F 9.3.2 |IO80211!F 1200.12.2b1 |IOSkywalk!F 1 >mDNSOffloadUserClient 1.0.1b8 >corecapture 1.0.4 >usb.!UHostPacketFilter 1.0 |IOUSB!F 900.4.2 >!AHSSPISupport 61 >!A!ILpssSpi!C 3.0.60 >!A!ILpssI2C 3.0.60 >!A!ILpssDmac 3.0.60 >!A!ILpssGspi 3.0.60 >usb.!UXHCIPCI 1.2 >usb.!UXHCI 1.2 >!AEFINVRAM 2.1 >!AEFIRuntime 2.1 |IOSMBus!F 1.1 |IOHID!F 2.0.0 $!AImage4 3.0.0 |IOTimeSync!F 985.2 |IONetworking!F 3.4 >DiskImages 493.0.0 |IO!B!F 8.0.5d7 |IOReport!F 47 |IO!BPacketLogger 8.0.5d7 $quarantine 4 $sandbox 300.0 @kext.!AMatch 1.0.0d1 |CoreAnalytics!F 1 >!ASSE 1.0 >!AKeyStore 2 >!UTDM 511.120.2 |IOUSBMass!SDriver 184.121.1 |IOSCSIBlockCommandsDevice 436.121.1 |IO!S!F 2.1 |IOSCSIArchitectureModel!F 436.121.1 >!AMobileFileIntegrity 1.0.5 @kext.CoreTrust 1 >!AFDEKeyStore 28.30 >!AEffaceable!S 1.0 >!ACredentialManager 1.0 >KernelRelayHost 1 |IOUSBHost!F 1.2 >!UHostMergeProperties 1.2 >usb.!UCommon 1.0 >!ABusPower!C 1.0 >!ASEPManager 1.0.1 >IOSlaveProcessor 1 >!AACPIPlatform 6.1 >!ASMC 3.1.9 |IOPCI!F 2.9 |IOACPI!F 1.4 >watchdog 1 @kec.pthread 1 @kec.corecrypto 11.1 @kec.Libm 1
