Error3 reports
Fix RuntimeError
in vLLM
✅ Solution
This error typically occurs in vllm. Check the example issues for common solutions.
Related Issues
Real GitHub issues where developers encountered this error:
[Bug]: EngineCore dies on first guided-decoding request when dspark speculative decoding is enabled (grammar bitmask width mismatch)Aug 3, 2026
[ROCm][CI] AITER MLA Kernel Test Coverage TrackerJul 30, 2026
[Bug]: get_open_port() hangs forever when VLLM_PORT falls inside the data parallel reserved port rangeJul 27, 2026
Timeline
First reported:Jul 27, 2026
Last reported:Aug 3, 2026