Moin, i have been running into memleaks with nginx 1.24.0 for some time; Nginx is self-build (as i need the http_sub module); It is configures with: ./configure --with-http_sub_module --with-http_ssl_module --with- http_stub_status_module --prefix=/usr/local --conf- path=/etc/nginx/nginx.conf --user=www --group=www
This did not occur with nginx before 1.24.0; I went through all nginx commits between 1.24.0 and the last non-leaking version, and the change is indeed when Nginx made TLS1.3 default on. The workload is a transparent proxy/web-fronting, i.e., lots of outbound TLS connections as well. When you look at the graphs (url below), it seems like leakage 'growth' tracks ~ to the number of connections nginx receives. As i currently assume that this is related to libressl, i did some traces of nginx (MALLOC_OPTIONS 2,3,D and -i -tu) for 2 hours each (usually enough for memory consumption to ~ double with avg. load. I do not really know enough to debug this any further at the moment; Is there anything else i could do to further circle in on the cause of this (and ideally figure out whether it is a libressl or nginx issue)? Some data (graphs, ktraces) here: https://rincewind.home.aperture-labs.org/~tfiebig/malloc/ Wit best regards, Tobias
