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User profile for user: gmd2283
gmd2283 Author
User level: Level 1
4 points

Frequent Kernel Panics in one day

My Imac keeps randomly getting kernel panics. I have been getting watch dog panics at least once a week for months now but today I have been getting this panic (cpu 5 caller 0xffffff801f828cc0): "Possible memory corruption:


this is just super frustrating.


do I need to remove all of my RAM?


panic(cpu 5 caller 0xffffff801f828cc0): "Possible memory corruption: pmap_pv_remove(0xffffff810d661d80,0x7fff90a97000,0x8000, 0x8000000, 0xffffffbb00cf3b44, 0xfffffe92004d34b8): null pv_list, priors: 2"@/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-6153.141.66/osfmk/i386/pmap_internal.h:903

Backtrace (CPU 5), Frame : Return Address

0xffffffbb00cf37c0 : 0xffffff801f71b54d

0xffffffbb00cf3810 : 0xffffff801f855d85

0xffffffbb00cf3850 : 0xffffff801f84790e

0xffffffbb00cf38a0 : 0xffffff801f6c1a40

0xffffffbb00cf38c0 : 0xffffff801f71ac17

0xffffffbb00cf39c0 : 0xffffff801f71b007

0xffffffbb00cf3a10 : 0xffffff801fec03bc

0xffffffbb00cf3a80 : 0xffffff801f828cc0

0xffffffbb00cf3b70 : 0xffffff801f828f96

0xffffffbb00cf3bd0 : 0xffffff801f7b6084

0xffffffbb00cf3c30 : 0xffffff801f7b4b2b

0xffffffbb00cf3d80 : 0xffffff801f7bc571

0xffffffbb00cf3db0 : 0xffffff801f74c36f

0xffffffbb00cf3df0 : 0xffffff801fc677c8

0xffffffbb00cf3e60 : 0xffffff801fc842a7

0xffffffbb00cf3ee0 : 0xffffff801fc84703

0xffffffbb00cf3f30 : 0xffffff801f712e99

0xffffffbb00cf3f70 : 0xffffff801f6c1a0c


BSD process name corresponding to current thread: mdworker_shared

iMac 27″, macOS 10.15

Posted on Sep 29, 2022 4:18 PM

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User profile for user: John Galt
John Galt
User level: Level 10
146,306 points

Posted on Sep 30, 2022 8:34 AM

do I need to remove all of my RAM?


If you have RAM you can substitute, try that. Or, remove one module at a time in an effort to isolate the problem to one of them.


Consider using Apple Diagnostics: Use Apple Diagnostics to test your Mac - Apple Support. If AD definitively identifies failed memory (any of the PPMxxx codes), then consider it a conclusive result. On the other hand AD may finish with "no issues found" which simply means it was unable to conclusively identify a specific failure.


For reference: If your Mac restarted because of a problem - Apple Support

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User profile for user: John Galt
John Galt
User level: Level 10
146,306 points

Sep 30, 2022 8:34 AM in response to gmd2283

do I need to remove all of my RAM?


If you have RAM you can substitute, try that. Or, remove one module at a time in an effort to isolate the problem to one of them.


Consider using Apple Diagnostics: Use Apple Diagnostics to test your Mac - Apple Support. If AD definitively identifies failed memory (any of the PPMxxx codes), then consider it a conclusive result. On the other hand AD may finish with "no issues found" which simply means it was unable to conclusively identify a specific failure.


For reference: If your Mac restarted because of a problem - Apple Support

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Frequent Kernel Panics in one day

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