Workaround for Access Violation startup crash on deprecated Radeon GPUs on Windows
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Authored by KrossX on Nov 30 2020, 1:49 AM.

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Reviewers

Clément Foucault (fclem)
Jeroen Bakker (jbakker)

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rBbaf84ecbe491: Workaround for Access Violation startup crash on deprecated Radeon GPUs on…

Summary

This is a workaround for T80804.

There's a startup crash that happens on 2.91.0 on Windows, an EXCEPTION_ACCESS_VIOLATION on atio6axx.dll. It is triggered by glClear on the detect_mip_render_workaround function. The workaround moves the function after the device/driver workaround section and sets the flag to the affected one to avoid running the check.

It is deprecated hardware that has not meet the minimum requirements since 2.79, but is still usable and this extends its usability a bit before the cards are finally blacklisted.

Diff Detail

Repository: rB Blender

Event Timeline

KrossX requested review of this revision.Nov 30 2020, 1:49 AM

KrossX created this revision.

Robert Guetzkow (rjg) mentioned this in T83407: Blender 2.91.0 crash on open.Dec 4 2020, 8:11 PM

Raimund Klink (Raimund58) added a subscriber: Raimund Klink (Raimund58).Dec 5 2020, 9:41 AM

Just need to add some clarification why this is moved so we don't revert this during cleanup.

Added an extra line about the issue to the existing comment.

EDIT: I thought this field was some sort of small log, kinda looks like another post. About the update, is a comment like that enough? I tried to make it short.

Thanks for the patch! After it is in master we need to remove the blacklisted GPUs

This revision is now accepted and ready to land.Dec 7 2020, 4:07 PM

Robert Guetzkow (rjg) mentioned this in T83554: Daily build fails to open.Dec 8 2020, 3:36 PM

Germano Cavalcante (mano-wii) mentioned this in T83471: Blender 2.91 not opening .Dec 8 2020, 7:05 PM

Jeroen Bakker (jbakker) mentioned this in rB1a959e9fa8c4: Raised AMD/Terascale2 from unsupported to supported..Dec 9 2020, 12:14 PM

Closed by commit rBbaf84ecbe491: Workaround for Access Violation startup crash on deprecated Radeon GPUs on… (authored by Jeroen Bakker (jbakker)). · Explain WhyDec 9 2020, 12:16 PM

This revision was automatically updated to reflect the committed changes.

Jeroen Bakker (jbakker) added a commit: rBbaf84ecbe491: Workaround for Access Violation startup crash on deprecated Radeon GPUs on….

Robert Guetzkow (rjg) mentioned this in T83698: Blender crash at launching.Dec 12 2020, 8:25 PM

Robert Guetzkow (rjg) mentioned this in T83375: Blender 2.91 multi scene and engine render crash.Dec 23 2020, 4:50 PM

Robert Guetzkow (rjg) mentioned this in T83017: Newly loaded Blender 2.91 crashes at launch.Dec 25 2020, 11:31 AM

Robert Guetzkow (rjg) mentioned this in T84298: EXCEPTION ACCESS VIOLATION Error on startup (windows 7 steam version).Jan 1 2021, 12:26 AM