static link binary runtime error: initgroups(www-data, 33) failed (5: I/O error)

[phpstatic]

I use musl build my package it work well, but recent I find this error on ubuntu 18.04:

initgroups(www-data, 33) failed (5: I/O error)

Is this a bug or a limit of static link ? Any workaround?

[richfelker]

It's almost surely nothing to do with static linking or with musl-cross-make, but might have to do with musl, your ubuntu system, or the interaction between them. Can you move this to the musl mailing list and follow up with an strace (if possible - if it can be done without disclosing private information) of the failure?

[phpstatic]

thanks for explain.

https://www.openwall.com/lists/musl/2020/10/03/1