Big Sur crash restart loop after update

Question

Luismartinez OP

Created Aug ’20

Replies 50

Boosts 0

Views 22k

Participants 49

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

Boost

Answer 1

jmlewis OP

Aug ’20

I have the same issue. I am able to use the laptop in Safe Mode but it is super slow.

0

Answer 2

mvonborstel OP

Aug ’20

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

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Answer 3

ReliantWV OP

Aug ’20

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.

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Answer 4

Jmbq OP

Aug ’20

Same!!!! Nothing can be done.... fan starts to go into hyperdrive and then just restarts

0

Answer 5

apugel OP

Aug ’20

Same here fan starts to go into hyperdrive and then just restarts

1

Answer 6

Rnc1223 OP

Aug ’20

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

0

Answer 7

RockYu OP

Aug ’20

I have the same issue after have upgraded from big sur beta 4 to beta 5.

0

Answer 8

Tecmobility OP

Aug ’20

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

0

Answer 9

JEPP OP

Aug ’20

Same issue. Lasts about a minute and chews through battery (on a Macbook Pro 15), then crashes. In safe mode everything is extremely slow.

0

Answer 10

Sshay OP

Aug ’20

Same. Updated now in kernel panic loop

0

Answer 11

Mike007 OP

Aug ’20

I have the same problem. Any suggestions to solve it? Safe mode crashes in the similar way.

0

Answer 12

thorup OP

Aug ’20

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.

0

Answer 13

_1_DaVe_1_ OP

Aug ’20

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.

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Answer 14

Cronometer OP

Aug ’20

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.

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Answer 15

Rnc1223 OP

Aug ’20

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.

0