debugged program crashes when calling pthread_create()

Debugging a program always fails when pthread_create() is excuted.

The debugged program is stopped with SIGSTOP and the stack trace says: in clone.S in allocatestack.c

This seems to happen since ~ start of 2021.

I first noticed this when debugging a small wxWidgets test application but assumed it was more a problem with wxWidgets. Now i found one of my own command line programs fails with the same error and from the output it printed so far i could find it's in pthread_create() which was not visible from the stack trace for me.

running the compiled program from gdb stand-along works.

1.) my project: https://github.com/Megatokio/Libraries

the Qt project is in LibraryTester/

put a breakpoint in tempmem.test.cpp line 192 to stop before pthread_create()

2.) wxWidget project: https://k1.spdns.de/Develop/Projects/Incubator/wxTest/wxTest/