upgrading binary failed - execve - too long argument list

[Charlie Kilo]

Hi everyone,
i'm trying to upgrade an nginx-binary while running.
When i do kill -s USR2 <pid>, i get the following error in the logs..

11:40:38 [alert] 52701#0: execve() failed while executing new binary
process "/opt/sbin/nginx" (7: Argument list too long)

Anybody knows what exactly is in those arguments ? We have ~ 20-55 worker
processes if that might be related..
nginx-version is 1.18.0, os: debian buster

thanks everyone in advance!
chris
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.nginx.org/pipermail/nginx/attachments/20210427/197d6df2/attachment.htm>