After security update 2021-007 for catalina MAMP isn't working, Graphics kernel error: 0xfffffffb

After installing security update 2021-007 on Catalina, MAMP stopped working and flags a bug with the graphics kernel


MacBook Pro 13″, macOS 10.15

Posted on Oct 29, 2021 3:08 PM

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Posted on Nov 10, 2021 2:54 AM

steve626 wrote:
[...] Being able to go all the way up to Catalina minus the very last security update is not too bad.

I can easily share this point of view. :-)


I just found a workaround so that Security Update 2021-007 Catalina can be installed... minus 'AppleIntelHD4000GraphicsGLDriver.bundle'. :


As already told I have a clean install of Catalina on a second Harddisk. I installed 'Security Update 2021-006 Catalina' onto this HD. This includes "/System/Library/Extensions/AppleIntelHD4000GraphicsGLDriver.bundle" Version 14.7.18

(This is the last working version of this bundle. Update 007 installs version 14.7.20, which is obviously broken)


I copied this bundle (and only this) to my primary System with 'Security Update 2021-007 Catalina' installed.


After a reboot to my primary system everything works again as expected, all WebGL-Pages can be loaded. :-)

This has the advantage that 'Security Update 2021-007 Catalina' is still installed, so there's no annoying reminder to install new updates from the system preferences. And in fact all Security Updates are installed - only with the exception of the GLDriver bundle.


I think that's currently the least possible violation of system security.


Regards - Matthias




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After security update 2021-007 for catalina MAMP isn't working, Graphics kernel error: 0xfffffffb

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