Big Sur crash restart loop after update

So after updating my MacBook Pro 16 inch , it starts up , then once I log on , it just completely turns off and reboots 




Code Block 
panic(cpu 9 caller 0xffffff800189dc5a): "Inconsistent OOL/copyout size on 0xffffff86e59a7ba0: expected 44, got 0 @0xffffff86e604bf48"@/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-7195.40.44.151.1/osfmk/ipc/ipc_kmsg.c:5032
Backtrace (CPU 9), Frame : Return Address
0xffffffa0ee73b9b0 : 0xffffff80018be6ad 
0xffffffa0ee73ba00 : 0xffffff80019fef13 
0xffffffa0ee73ba40 : 0xffffff80019ef96a 
0xffffffa0ee73ba90 : 0xffffff8001863a2f 
0xffffffa0ee73bab0 : 0xffffff80018bdf4d 
0xffffffa0ee73bbd0 : 0xffffff80018be238 
0xffffffa0ee73bc40 : 0xffffff80020b9f1a 
0xffffffa0ee73bcb0 : 0xffffff800189dc5a 
0xffffffa0ee73bd10 : 0xffffff800189df92 
0xffffffa0ee73bda0 : 0xffffff800189e4b1 
0xffffffa0ee73bde0 : 0xffffff80018b126e 
0xffffffa0ee73be60 : 0xffffff80018b1d2a 
0xffffffa0ee73bef0 : 0xffffff80019d45e3 
0xffffffa0ee73bfa0 : 0xffffff8001864216 
Process name corresponding to current thread: endpointsecurityd
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev chunklist-security-epoch=0 -chunklist-no-rev2-dev





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Luismartinez
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I have the same issue. I am able to use the laptop in Safe Mode but it is super slow.
Posted by
jmlewis
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I also have the same issue. I had to backup all my files via airdrop in safemode and then send it back to Catalina to fix it. Going to hold off until beta 6 comes out since this seems to be a thread today
Posted by
mvonborstel
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You're not alone. I'm experiencing a similar if not the exact same error on a MacBook Pro 16. I've found a similar entry on the Macrumors forums - no one seems to know what the exact cause is or what a workaround or fix might be.
Posted by
ReliantWV
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Same!!!! Nothing can be done.... fan starts to go into hyperdrive and then just restarts
Posted by
Jmbq
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Same here fan starts to go into hyperdrive and then just restarts
Posted by
apugel
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I have the same issue on a MacBook Air 2017. I was able to do a restore and it reverts back to beta 4 without losing anything
Posted by
Rnc1223
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I have the same issue after have upgraded from big sur beta 4 to beta 5.
Posted by
RockYu
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Same here on a Mac mini. I recovered using my last backup .
I wonder if there is anyway to reinstall the beta 4 waiting for the beta 6
Posted by
Tecmobility
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Same issue. Lasts about a minute and chews through battery (on a Macbook Pro 15), then crashes. In safe mode everything is extremely slow.
Posted by
JEPP
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Same. Updated now in kernel panic loop
Posted by
Sshay
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I have the same problem. Any suggestions to solve it? Safe mode crashes in the similar way.
Posted by
Mike007
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Same issue for me. Mac book pro 16 inch, reboot after entering pass word on start up. Safe mode has the same issue, but happen's faster.
Posted by
thorup
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It appears to be caused by Symantec/Norton. @RM9981 outlines a potential solution here: https://developer.apple.com/forums/thread/657905.

It didn't work for me, but it doesn't hurt to give it a try. My guess is that Apple is going to have to release an update on their end that forcibly removes whatever Symantec remnant tries to start the endpointsecurityd process. Kind of like what they did with Zoom around a year ago. If you can, report the issue to Apple in the Feedback Assistant; right now it won't let me log in so I can't get a report in. Hopefully if as many people as possible report the problem they can fix it quickly.
Posted by
_1_DaVe_1_
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Same issue, had norton antivirus installed but had uninstalled it a few weeks ago, but perhaps it left some tendrils here. Safe mode works enough to post here, but outside of safe mode it's a constant panic after login.
Posted by
Cronometer
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This is what worked for me. I did a clean install of Catalina. Once installed and working good, I downloaded the Big Sur public beta profile. I installed that and installed the latest Public beta. Once installed and working properly, I then downloaded and installed the Big Sur Developer Beta profile and installed Big Sur beta 5. It started up perfectly with no kernel panic.
Posted by
Rnc1223
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