bugfix: prevent uthread crash by checking coroutine reference before …#2479
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zhuizhuhaomeng merged 11 commits intoopenresty:masterfrom Mar 10, 2026
Merged
bugfix: prevent uthread crash by checking coroutine reference before …#2479zhuizhuhaomeng merged 11 commits intoopenresty:masterfrom
zhuizhuhaomeng merged 11 commits intoopenresty:masterfrom
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Pull request overview
This PR aims to prevent user-thread (uthread) crashes during coroutine cleanup by only deleting threads (and decrementing ctx->uthreads) when the coroutine has a valid Lua registry reference (co_ref != LUA_NOREF).
Changes:
- Guard
ngx_http_lua_del_thread(...)+ctx->uthreads--withco_ref != LUA_NOREFin multiple uthread termination paths. - Adjust uthread cleanup logic to avoid acting on already-unreferenced coroutines.
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zhuizhuhaomeng
requested changes
Mar 10, 2026
zhuizhuhaomeng
approved these changes
Mar 10, 2026
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