| Bug ID | 102233 |
|---|---|
| Summary | OpenCL segmentation fault on AMD Radeon (Kaveri+R7) with memtestCL |
| Product | Mesa |
| Version | git |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | critical |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | senad.jahic@gmx.com |
| QA Contact | dri-devel@lists.freedesktop.org |
| Blocks | 99553 |
Hardware: AMD A8-7600 with Radeon™ R7 Series Sapphire R7 240 4GB ASUS R7 240 4GB OS: Ubuntu server 17.04 64bit (headless mode). OpenCL Driver: Padoka Description: clinfo works, shows all three GPU platforms. Sometimes I get segmentation fault using memtestCL. I get 100% crashes with YACMiner (crypto mining software). I've traced memtestCL down to this line: https://github.com/ihaque/memtestCL/blob/607499a54dcac9b846fcc827dc5980d8e5f66cec/memtestCL_cli.cpp#L126 On repeating runs, clGetDeviceIDs sometimes returns 0 for num_cpu and sometimes 1. If it returns 1, clGetDeviceInfo later crashes when called with device id that does not exist. If I hardcode "num_devices=3" at offending line, I can run memtestCL on all three devices successfully without faults.
Referenced Bugs:
- [Bug 99553] Tracker bug for runnning OpenCL applications on Clover
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