id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
950	Bad gateway with http2 requests on hhvm fastcgi since 1.9.14	GregOriol@…		"Since nginx 1.9.14, using an http2 server with hhvm as fastcgi backend doesn't seem to work: nginx returns a 502 Bad Gateway.

In the errorlog, there is this message:
{{{
2016/04/10 13:36:34 [error] 9763#9763: *7 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: [IP], server: [SERVER_NAME], request: ""GET /test.php HTTP/2.0"", upstream: ""fastcgi://127.0.0.1:9000"", host: ""[SERVER_NAME]""
}}}

Nothing special on hhvm's side; the php code used in test.php is a simple <?php echo ""ok"".

Works well with nginx 1.9.13
Works well with php-fpm as fastcgi backend
Works well with http/1.1 requests; only http2 requests are having this 502 error
"	defect	closed	major		nginx-module	1.9.x	fixed			Linux server 3.14.32-xxxx-std-ipv6-64 #1 SMP Sat Feb 7 12:07:25 CET 2015 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.9.14
built by gcc 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.1) 
built with OpenSSL 1.0.1f 6 Jan 2014
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-http_auth_request_module --with-http_xslt_module=dynamic --with-http_image_filter_module=dynamic --with-http_geoip_module=dynamic --with-http_perl_module=dynamic --add-dynamic-module=debian/extra/njs-91543c86f412/nginx --with-threads --with-stream --with-stream_ssl_module --with-http_slice_module --with-mail --with-mail_ssl_module --with-file-aio --with-http_v2_module --with-cc-opt='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as-needed' --with-ipv6"