> At least the vDSO functions really don't need much in the way of stack space: ...

> At least the vDSO functions really don't need much in the way of stack space: generally there's nothing much there but clock_gettime() and gettimeofday(), which just read some values from the vvar area.

And yet that’s exactly one of the things Go fucked up in the past: https://marcan.st/2017/12/debugging-an-evil-go-runtime-bug/