| Bug ID | 96488 |
|---|---|
| Summary | [r600g]OpenCL driver causes segfault in ImageMagick's Histogram kernel |
| Product | Mesa |
| Version | git |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/r600 |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | nixscripter@gmail.com |
| QA Contact | dri-devel@lists.freedesktop.org |
Created attachment 124469 [details] Histogram kernel backtrace If I compile ImageMagick with OpenCL support, the current version segfaults when I attempt to do any operation which computes a histogram. This is actually done frequently internally, so it's more crippling than it first appears. To reproduce: 1. Get the current latest ImageMagick from GitHub: https://github.com/ImageMagick/ImageMagick 2. Compile it with OpenCL support (--enable-opencl flag) 3. Get an image, and try to equalize its colors (based on the histogram): convert input.png -equalize output.png 4. The segfault will occur LLVM version: r272184 Mesa version: commit d5491a8 ImageMagick version: ade0d8e The source code for the Histogram kernel is in MagickCore/accelerate-kernels-private.h, starting on line 1283.
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