From 95a5bbb3676e1d908959f064158a1355bbd5b89e Mon Sep 17 00:00:00 2001
From: Devaev Maxim <mdevaev@gmail.com>
Date: Tue, 3 Jul 2018 06:59:40 +0300
Subject: [PATCH] fixed os freezes

---
 os/platforms/v1/99-pikvm.conf |  3 +++
 os/platforms/v1/nginx.conf    | 21 +++++++++++++++++++--
 os/platforms/v1/run.sh        |  4 +++-
 3 files changed, 25 insertions(+), 3 deletions(-)
 create mode 100644 os/platforms/v1/99-pikvm.conf

diff --git a/os/platforms/v1/99-pikvm.conf b/os/platforms/v1/99-pikvm.conf
new file mode 100644
index 00000000..71db0efc
--- /dev/null
+++ b/os/platforms/v1/99-pikvm.conf
@@ -0,0 +1,3 @@
+# https://github.com/raspberrypi/linux/issues/1753
+vm.dirty_background_bytes = 5
+vm.dirty_writeback_centisecs = 25
diff --git a/os/platforms/v1/nginx.conf b/os/platforms/v1/nginx.conf
index a236b085..9fbd41e5 100644
--- a/os/platforms/v1/nginx.conf
+++ b/os/platforms/v1/nginx.conf
@@ -18,7 +18,7 @@ http {
 	keepalive_timeout 10;
 	# gzip on;
 
-	upstream kvm_ws {
+	upstream kvmd {
 		server localhost:8081 fail_timeout=0s max_fails=0;
 	}
 
@@ -46,9 +46,26 @@ http {
 
 		location /kvm/ws {
 			rewrite /kvm/ws /ws break;
-			proxy_pass http://kvm_ws;
+			proxy_pass http://kvmd;
 			proxy_set_header Upgrade $http_upgrade;
 			proxy_set_header Connection "upgrade";
+			proxy_connect_timeout 7d;
+			proxy_send_timeout 7d;
+			proxy_read_timeout 7d;
+		}
+
+		location /kvm/msd/write {
+			rewrite /kvm/msd/write /msd/write break;
+			proxy_pass http://kvmd;
+			limit_rate 6250k;
+			limit_rate_after 50k;
+			client_max_body_size 0;
+			proxy_request_buffering off;
+		}
+
+		location /kvm {
+			rewrite /kvm/?(.*) /$1 break;
+			proxy_pass http://kvmd;
 		}
 
 		location /video {
diff --git a/os/platforms/v1/run.sh b/os/platforms/v1/run.sh
index 525d7756..4dbc17a0 100755
--- a/os/platforms/v1/run.sh
+++ b/os/platforms/v1/run.sh
@@ -5,14 +5,16 @@ set -x
 . ../functions.sh
 
 
-cp config.txt "$FS/boot/config.txt"
 pkg_install \
 	kvmd \
 	mjpg-streamer-pikvm \
 	nginx
 
+cp config.txt "$FS/boot/"
+cp 99-pikvm.conf "$FS/etc/sysctl.d/"
 cp index.html "$FS/srv/http/"
 cp kvmd.yaml "$FS/etc/"
 cp nginx.conf "$FS/etc/nginx/"
+
 rpi systemctl enable kvmd
 rpi systemctl enable nginx