[Bug 249932] graphics/drm-fbsd12.0-kmod: panic on certain graphics operations

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249932

Patrick McMunn <doctorwhoguy at gmail.com> changed:

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                 CC|                            |doctorwhoguy at gmail.com

--- Comment #15 from Patrick McMunn <doctorwhoguy at gmail.com> ---
Created attachment 219285
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=219285&action=edit
core.txt.8 panic info

I'm running 12.2-RELEASE on a DELL XPS400. It's using the r300 Mesa driver. I
have frequent kernel panics -- usually when trying to run any graphical
application other than the Plasma 5 desktop, though even that has been enough
to panic the system more than once. I also experience frequent flickering of
the screen -- mostly when scrolling a browser page up or down -- and the screen
doesn't necessary refresh properly so that old images may remain even though
the image should be newer. This also hinders ALT-TAB switching which I may have
to do 3-6 times or more just to switch between programs and get the new window
to appear properly

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