I patch quiche to OpenResty-1.15.8，I found error (epoll_ctl(1, 53) failed (17: File exists)) when access_by_lua of ngx_lua module enabled，I gruess ngx_lua not support quic. ngx_lua issue

build env

nginx version: openresty/1.15.8.1 (quiche-09c0e37)
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC)
built with OpenSSL 1.1.1 (compatible; BoringSSL) (running with BoringSSL)
TLS SNI support enabled
configure arguments: --prefix=/myngx/nginx --with-debug --with-cc-opt='-DNGX_LUA_USE_ASSERT -DNGX_LUA_ABORT_AT_PANIC -O2 -ggdb -O2 -D JD_NGX_SSL_HANDSHAKE_TIME -D JD_NGX_HTTP_UPSTREAM_RANDOM' --add-module=../ngx_devel_kit-0.3.1rc1 --add-module=../echo-nginx-module-0.61 --add-module=../xss-nginx-module-0.06 --add-module=../ngx_coolkit-0.2 --add-module=../set-misc-nginx-module-0.32 --add-module=../form-input-nginx-module-0.12 --add-module=../encrypted-session-nginx-module-0.08 --add-module=../srcache-nginx-module-0.31 --add-module=../ngx_lua-0.10.15 --add-module=../ngx_lua_upstream-0.07 --add-module=../headers-more-nginx-module-0.33 --add-module=../array-var-nginx-module-0.05 --add-module=../memc-nginx-module-0.19 --add-module=../redis2-nginx-module-0.15 --add-module=../redis-nginx-module-0.3.7 --add-module=../rds-json-nginx-module-0.15 --add-module=../rds-csv-nginx-module-0.09 --add-module=../ngx_stream_lua-0.0.7 --with-ld-opt=-Wl,-rpath,/export/servers/myngx/luajit/lib --build=quiche-09c0e37 --with-pcre=/root/rpmbuild/BUILD/myngx-2.3-52.d375389/thirdparty/pcre-8.39 --with-pcre-jit --with-zlib=/root/rpmbuild/BUILD/myngx-2.3-52.d375389/thirdparty/zlib-1.2.8 --with-threads --with-http_auth_request_module --with-http_ssl_module --with-http_gzip_static_module --with-http_stub_status_module --with-http_v2_module --with-http_realip_module --with-http_addition_module --with-http_slice_module --add-module=/root/rpmbuild/BUILD/myngx-2.3-52.d375389/thirdparty/lua-ssl-nginx-module --add-module=/root/rpmbuild/BUILD/myngx-2.3-52.d375389/thirdparty/ngx_http_dyups_module --add-module=/root/rpmbuild/BUILD/myngx-2.3-52.d375389/thirdparty/ngx_http_sticky_module --with-stream --with-stream_ssl_module --with-http_v3_module --with-openssl=/root/myhome/quiche-cloudflare/deps/boringssl --with-quiche=/root/myhome/quiche-cloudflare --with-stream --with-stream_ssl_preread_module

some code
ngx conf

http {
...
lua_max_running_timers 512;
lua_max_pending_timers 1024;

lua_package_path "$prefix/app/lib/?.lua;$prefix/app/etc/?.lua;$prefix/app/src/?.lua;$prefix/sbin/openresty/lualib/?.lua;;";
lua_package_cpath "$prefix/app/lib/?.so;$prefix/sbin/openresty/lualib/?.so;;";

lua_check_client_abort on;
lua_socket_log_errors off;
lua_http10_buffering off;
...

server {
    listen :443 quic reuseport;
    listen :443 ssl http2;
    ...
    access_by_lua_file my_waf.lua
    ...

    }
}

WAF module
my_waf.lua

_M.waf_request = function ()
...ngx.req.get_body_file()..
local http_conn = http.new()
...http_conn.connect()...
...http_conn.request()...
...

end

error msg

2022/02/22 11:00:05 [alert] 27764#27764: *42474256 epoll_ctl(1, 36) failed (17: File exists), client: 1.114.102.56, server:quic.ngx.com, request: "POST /a?&t=1511418329196 HTTP/2.0", host: "quic.ngx.com"

Uh oh!

feat: apisix support QUIC+HTTP3 #6403

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