Mesa DRM Library Update Fixes Critical RadeonSI Bug
Written by Michael Larabel in AMD on 3 December 2013 at 03:06 PM EST. Add A Comment
The Mesa DRM library (libdrm) was updated to version 2.4.50 today in order to address a critical bug affecting the RadeonSI driver for Radeon HD 7000 series GPUs and newer.

The critical bug that was patched from libdrm 2.4.49 would lead to crashes when running some OpenGL applications or even Google Chrome from the open-source AMD RadeonSI driver. The bug documenting the issue is on the FreeDesktop.org BugZilla.

There was a fix committed for this issue, "radeon: Update unaligned offset for 2D->1D tiling transition on SI." The only other change squeezing into libdrm 2.4.50 is an Intel change by Keith Packard for tracking known DRI PRIME buffers for re-use that were previously already passed to the game/application.

The libdrm 2.4.50 release announcement can be found on dri-devel.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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