[Issue 20270] [REG2.087] Deadlock in garbage collection when running processes in parallel

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20270

--- Comment #3 from Rainer Schuetze <r.sagitario at gmx.de> ---
I cannot reproduce locally in a VM. Does the problem go away with
--DRT-gcopt=parallel:0 ?

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