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Cosmo M3

macrumors 6502
Original poster
Based on the Apple Support community forum, this seems to be a recurring issue for the 16" MBP when the laptop would restart/freeze during hibernation and after it finally restarts, it gives me a kernel panic. Originally it was due to the Intel UHD integrated GPU (which was replaced along with the entire logic board and the touch ID - still didn't fix the issue) and now the latest kernel panics are telling me that something else is wrong.

Anyone else run into these issues and find a fix?

Note: the Apple Support experience was incredible with a 24 hour turnaround time (overnight shipping) but unfortunately the problem still persists.
 
This just happened again to me this morning. Second time, I believe.

This is otherwise a great computer for me, but should I be sending mine in?

i9, 1TB, 5500M 4GB model
 
There are a number of reports round this problem in this forum. If there is a common theme it seems to be problems with waking Thunderbolt connected equipment.

If you have any connected equipment, docks, displays or similar I would suggest first you disconnect those and see if the Kernel panics still occur.
 
If you have any connected equipment, docks, displays or similar I would suggest first you disconnect those and see if the Kernel panics still occur.

This was after a fresh install of Catalina without anything connected.
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This just happened again to me this morning. Second time, I believe.

This is otherwise a great computer for me, but should I be sending mine in?

i9, 1TB, 5500M 4GB model

Not sure if it'll fix the issue because it didn't fix mine with a brand new logic board/touch ID board.
 
I don't think it's hardware related, it's only been happening to mine since the update to 10.15.4. I can almost make it happen on command by plugging/unplugging the charger while it's asleep with the AMD card active. It sleeps and wakes normally if it's on battery or the iGPU.

Really wish I could put Mojave on this thing.
 
I tend to believe it is 99% software related. Since installing 10.15.4, my Mac mini started crashing, as well. The latest panic report I got this morning mentions:

Kernel Extensions in backtrace:
com.apple.iokit.IOUSBMassStorageDriver(157.101.3)[E83AC456-A4B2-3DC3-85C2-8B52B09F44DB]@0xffffff7f94309000->0xffffff7f9433cfff
dependency: com.apple.iokit.IOPCIFamily(2.9)[1B1F3BBB-9212-3CF9-94F8-8FEF0D3ACEC4]@0xffffff7f93d11000
dependency: com.apple.iokit.IOUSBHostFamily(1.2)[CC813BD5-B83C-3B83-A95E-796D87DE8F81]@0xffffff7f93de3000
dependency: com.apple.iokit.IOStorageFamily(2.1)[425BC668-32EC-368C-B4EB-CF8510846BEE]@0xffffff7f9407f000
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(422.101.1)[E0A54FDE-501E-3BB4-A08C-C8AFA1719DE2]@0xffffff7f942bb000

BSD process name corresponding to current thread: kernel_task
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev

Yesterday I have received my third MBP 16". I have not updated the software and I have no problem with it.
 
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