RESOLVED FIXED312266
[GBM] REGRESSION(310393@main): Always use DRM_RDWR when exporting dma-buf FDs for GPU buffer mapping 
https://bugs.webkit.org/show_bug.cgi?id=312266
Summary [GBM] REGRESSION(310393@main): Always use DRM_RDWR when exporting dma-buf FDs...
Nikolas Zimmermann
Reported 2026-04-14 06:35:12 PDT
gbm_bo_get_fd_for_plane() in older Mesa versions does not always pass DRM_RDWR to drmPrimeHandleToFD, which results in FDs that cannot be mmap'd for writing. This silently breaks GPU buffer write operations.
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Nikolas Zimmermann
Comment 1 2026-04-14 06:36:09 PDT
Pull request: https://github.com/WebKit/WebKit/pull/62730
EWS
Comment 2 2026-04-15 00:33:28 PDT
Committed 311266@main (31dab2d9da5a): <https://commits.webkit.org/311266@main> Reviewed commits have been landed. Closing PR #62730 and removing active labels.
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