Bug ID | 98028 |
---|---|
Summary | Guns of Icarus Online segfaults on startup since AMDGPU: Partially fix control flow at -O0 |
Product | Mesa |
Version | git |
Hardware | Other |
OS | All |
Status | NEW |
Severity | normal |
Priority | medium |
Component | Drivers/Gallium/radeonsi |
Assignee | dri-devel@lists.freedesktop.org |
Reporter | daniel@constexpr.org |
QA Contact | dri-devel@lists.freedesktop.org |
Created attachment 126970 [details] Short Guns of Icarus Online startup trace (truncated by segfault) Guns of Icarus Online segfaults (or sometimes hangs) on startup with current Mesa and LLVM. I have bisected the segfault to LLVM r282667. The backtraces for the segfaults vary. Some of the segfaults are inside malloc / free, indicating possible memory corruption. I have attached an apitrace recorded using a bad LLVM revision. While the game consistently segfaults (or hangs), replaying the trace does not result in a segfault every time. Here is also a longer trace of the full startup sequence recorded using a good LLVM revision: http://constexpr.org/tmp/GoIO-radeonsi.2.trace.xz (82 MiB) GPU: R9 380X Kernel: 4.7.5-gentoo Mesa: git-024c207 LLVM: r283076
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