Running any Vulkano projects results in a freeze and crash

[Ldash4]

• OS: Arch 5.1.15-arch1-1-ARCH
• GPU: NVIDIA GeForce GTX 1070
• GPU Driver: nvidia-430.26-7

Running any Vulkano project (I tried several from the examples repo) results in the following:

➜  vulkano-examples git:(master) cargo run --release --bin triangle
    Finished release [optimized] target(s) in 0.07s
     Running `target/release/triangle`
Using device: GeForce GTX 1070 (type: DiscreteGpu)
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: OutOfHostMemory', src/libcore/result.rs:997:5
note: Run with `RUST_BACKTRACE=1` environment variable to display a backtrace.

The backtrace contains no useful information. The exact same results are shown on any example.

The project renders one frame, shows the above message, hangs for ~4 seconds and then crashes.

[simdimdim]

might be related: #955 , #1210 might also be related. And most likely so is #1135

[theotherphil]

I see the same behaviour on my machine.

OS: Ubuntu 19.04
GPU: NVIDIA GeForce RTX 2070 SUPER
GPU Driver: 430.50-0ubuntu0.19.04.1

→ cargo run --bin triangle
Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Running target/debug/triangle
Using device: GeForce RTX 2070 SUPER (type: DiscreteGpu)
thread 'main' panicked at 'called Result::unwrap() on an Err value: OutOfHostMemory', src/libcore/result.rs:1084:5
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace.

[AustinJ235]

This is a know issue at this point and has yet to be corrected in the examples. On nvidia systems you need to call wait after then_signal_fence_and_flush.

[theotherphil]

Thanks. The following change fixes the triangle example for me. I'll create a PR to fix the examples in vulkano-examples.

(Edit: d'oh. Got as far as creating a PR, only to discover that I need to commit to vulkano instead. I'll do that then...)

diff --git a/src/bin/triangle.rs b/src/bin/triangle.rs
index 172075d..e8848a0 100644
--- a/src/bin/triangle.rs
+++ b/src/bin/triangle.rs
@@ -415,6 +415,7 @@ void main() {
 
         match future {
             Ok(future) => {
+                future.wait(None);
                 previous_frame_end = Box::new(future) as Box<_>;
             }
             Err(FlushError::OutOfDate) => {