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The fix for this problem is embodied in the following Mesa commits:
commit 75cb6e36178b9474bbb59b76cbbcce2a67bf88d2
Author: Ray Strode <rstrode>
Date: Wed Aug 23 16:32:42 2017 -0400
gallivm: correct channel shift logic on big endian
commit 57c8ead0cd08e6aaf88a389f7ce528c4f0face65
Author: Ben Crocker <bcrocker>
Date: Wed Aug 23 16:32:43 2017 -0400
llvmpipe: lp_build_gather_elem_vec BE fix for 3x16 load
These commits do NOT appear to be in any of the Mesa
17.2.0 release candidates; we will need to do one of the following:
1) Apply these changes as a patch to 17.2;
2) Convince the Mesa folks to spin one more release candidate
with this patch (seems unlikely, as Andres Gomez asserts that
he has "completed the 17.2 cycle" with "17.2-rc6 as tentative
final version to be promoted to 17.2.0 final." The only
encouraging word here is "tentative;"
3) Ship RHEL 7.5 with 17.2.1, which is not yet finalized
(or even begun).
The version of Mesa supplied with RHEL 7.5 is actually 17.2.2 or greater;
since the fixes for this problem were in Mesa 17.2.1, this BZ should
be closed.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2018:0736
The fix for this problem is embodied in the following Mesa commits: commit 75cb6e36178b9474bbb59b76cbbcce2a67bf88d2 Author: Ray Strode <rstrode> Date: Wed Aug 23 16:32:42 2017 -0400 gallivm: correct channel shift logic on big endian commit 57c8ead0cd08e6aaf88a389f7ce528c4f0face65 Author: Ben Crocker <bcrocker> Date: Wed Aug 23 16:32:43 2017 -0400 llvmpipe: lp_build_gather_elem_vec BE fix for 3x16 load These commits do NOT appear to be in any of the Mesa 17.2.0 release candidates; we will need to do one of the following: 1) Apply these changes as a patch to 17.2; 2) Convince the Mesa folks to spin one more release candidate with this patch (seems unlikely, as Andres Gomez asserts that he has "completed the 17.2 cycle" with "17.2-rc6 as tentative final version to be promoted to 17.2.0 final." The only encouraging word here is "tentative;" 3) Ship RHEL 7.5 with 17.2.1, which is not yet finalized (or even begun).