Kernel panic "addr 0xffffff8020ce05a8 being freed to foreign zone vm pages not from foreign range"

How to fix this error?

"panic(cpu 4 caller 0xffffff8004cbf3ff): "addr 0xffffff8020ce05a8 being freed to foreign zone vm pages not from foreign range"@/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-7195.81.3/osfmk/kern/zalloc.c:545

Backtrace (CPU 4), Frame : Return Address"


I had this message while using different apps like firefox as well since Big Sur 11.1.0. Now on 11.2.1 it got even worse to around 6 crashes per day atm. Any insights?



MacBook Pro 15″, macOS 11.2

Posted on Feb 15, 2021 12:22 PM

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8 replies

Feb 16, 2021 5:54 AM in response to Barney-15E

After normal reboot I found these kernel extensions:


/Library/StagedExtensions/Library/Extensions/FTDIUSBSerialDriver.kext

/Library/StagedExtensions/Library/Extensions/HighPointRR.kext

/Library/StagedExtensions/Library/Extensions/SoftRAID.kext

/Library/StagedExtensions/Library/Extensions/HighPointIOP.kext

/Library/StagedExtensions/Library/Extensions/ham.kext

/Library/StagedExtensions/Library/Extensions/CIJUSBLoad.kext

/Library/StagedExtensions/Library/Extensions/BJUSBLoad.kext


Could one of them lead to the crashes?

Feb 16, 2021 7:18 AM in response to hanswiwi

The system log post panic is not going to show anything. As far as the system knows, it's just a normal restart.

The log just prior to the kernel panic might contain clues as to the cause, but I doubt it. If the Mac could identify the fact that it was about to panic, it would do something about it. A panic is an instant, unrecoverable error that may or may not be related to what is running at the time. So, the log entries at the time of the panic are likely entirely unrelated to the panic.


The only way to determine the cause is to have it looked at by Apple Store Genius Bar or Authorized Repair Center. None of the logs nor the panic log itself will definitively identify the hardware that is faulting.


I have seen memory panics caused by some of the anti-virus kernel extensions, but you don't have any loaded.

If it is not a third-party kernel extension causing the panic (which you don't have), then it is most likely hardware or a fault in an Apple kernel extension (highly unlikely). The last two can only be determined by taking it in to have it evaluated.

Feb 16, 2021 5:26 AM in response to hanswiwi

It's possible an Apple kernel extension has a fault in it, but it is not likely.

You don't have any third-party kernel extensions, so it is more than likely a hardware problem.


There are a few other causes of kernel panics, but I can't remember what they are.

One of the other causes might be fixed with an NVRAM reset, but it wouldn't be a temporary fix.

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Kernel panic "addr 0xffffff8020ce05a8 being freed to foreign zone vm pages not from foreign range"

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