Issue #14867 has been updated by nobu (Nobuyoshi Nakada).


Since r63758, `rb_waitpid()` hangs up frequently (not always) on macOS (darwin17).
Seems `SIGCHLD` is not delivered.

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Bug #14867: Process.wait can wait for MJIT compiler process
https://bugs.ruby-lang.org/issues/14867#change-72680

* Author: k0kubun (Takashi Kokubun)
* Status: Open
* Priority: Normal
* Assignee: normalperson (Eric Wong)
* Target version: 
* ruby -v: 
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
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If Ruby tries to wait for any child process, MJIT's gcc/clang process could be caught by the method call. It's not convenient for both Ruby's user and MJIT worker thread, so Process.wait and its families should somehow avoid waiting for it.

---Files--------------------------------
0001-hijack-SIGCHLD-handler-for-internal-use.patch (13.8 KB)


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