| Bug ID | 105339 |
|---|---|
| Summary | Deadlock inside glClientWaitSync |
| Product | Mesa |
| Version | git |
| Hardware | Other |
| OS | Linux (All) |
| Status | NEW |
| Severity | blocker |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | dark_sylinc@yahoo.com.ar |
| QA Contact | dri-devel@lists.freedesktop.org |
Calling glClientWaitSync under specific conditions will run into an unrecoverable deadlock. The only known workaround is to issue a glFlush before glClientWaitSync. I originally discovered this problem in the Dolphin Emulator, see ticket https://bugs.dolphin-emu.org/issues/10904 However I am now reporting it because I was able to reproduce this bug independently. Reported affected systems so far: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz 16GB RAM (1 stick) GPU: Radeon RX 560 Series (POLARIS11 / DRM 3.19.0 / 4.14.11, LLVM 6.0.0) Mesa 18.1.0-devel (git-183ce5e629) Xubuntu 17.10 Kernel 4.14.11 i3 4150 @ 3.50ghz DDR3 12GB RAM AMD R7 260X 2GB VRAM Ubuntu 17.10 Kernel 4.15.4 Mesa 18.1.0-devel I will try to upload a simple repro if I can in the next few hours. I stumble on this issue because our Ogre 2.2 sample "Sample_PlanarReflections" is affected by it. My git version is stuck at 847d0a393d7f0f967f39302900d5330f32b804c8 due to an unrelated regression reported at https://bugs.freedesktop.org/show_bug.cgi?id=105218 However I know the bug is still present as of 1f5618e81c00199d3349b1ade797382635b2af85 (which is not latest)
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