Issue #21336 has been reported by k0kubun (Takashi Kokubun). ---------------------------------------- Bug #21336: "Cannot malloc during GC" on WASM https://bugs.ruby-lang.org/issues/21336 * Author: k0kubun (Takashi Kokubun) * Status: Open * Assignee: katei (Yuta Saito) * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: REQUIRED ---------------------------------------- The patch for [Bug #21331] https://github.com/ruby/ruby/pull/13317 introduced a new bug for WASM build. ``` basictest/test.rb:array ...........................basictest/test.rb:53: [BUG] Cannot malloc during GC ruby 3.5.0dev (2025-05-13T13:39:06Z pull/13317/merge 5e6d7a06ee) +PRISM [wasm32-wasi] -- Control frame information ----------------------------------------------- c:0005 p:0002 s:0065 e:000064 METHOD basictest/test.rb:53 c:0004 p:0005 s:0061 e:000059 METHOD basictest/test.rb:68 c:0003 p:0068 s:0056 e:000055 METHOD basictest/test.rb:119 c:0002 p:8173 s:0048 E:000a00 EVAL basictest/test.rb:889 [FINISH] c:0001 p:0000 s:0003 E:0005a8 DUMMY [FINISH] -- Ruby level backtrace information ---------------------------------------- basictest/test.rb:889:in '<main>' basictest/test.rb:119:in 'test_ok' basictest/test.rb:68:in 'pass' basictest/test.rb:53:in 'passed_string' ``` https://github.com/ruby/ruby/actions/runs/14998139079/job/42139552597 -- https://bugs.ruby-lang.org/