jhwgh1968
commented
3 years ago I tried to see if this bug was reproducible on nightly 1c249200.
Instead of the one above, I got a very different panic before anything drew on the screen:
thread 'main' panicked at 'Error in Queue::write_texture: copy of 0..2304 would end up overruning the bounds of the Source buffer of size 1536'
It is really hard to track down, but it seems like there is something weird when the source buffer is built.
This is the section of the wgpu renderer where it seem to originate:
```rust
let texture_label = create_debug_label!("{} Texture", debug_str);
let texture = self
.descriptors
.device
.create_texture(&wgpu::TextureDescriptor {
label: texture_label.as_deref(),
size: extent,
mip_level_count: 1,
sample_count: 1,
dimension: wgpu::TextureDimension::D2,
format: wgpu::TextureFormat::Rgba8Unorm,
usage: wgpu::TextureUsage::SAMPLED | wgpu::TextureUsage::COPY_DST,
});
self.descriptors.queue.write_texture(
wgpu::TextureCopyView {
texture: &texture,
mip_level: 0,
origin: Default::default(),
},
&data,
wgpu::TextureDataLayout {
offset: 0,
bytes_per_row: 4 * extent.width,
rows_per_image: 0,
},
extent,
);
```
The texture itself is 24x24, which at 16bpp is 1536 bytes. I don't know where 2304 comes from.
If it helps, the debug label is "JPEG2", even though it doesn't seem to be compressed.
Full backtrace (which I think is misleading, but just in case):
```
stack backtrace:
0: 0x5645b982d060 - std::backtrace_rs::backtrace::libunwind::trace::h7494b45d90ec45a4
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
1: 0x5645b982d060 - std::backtrace_rs::backtrace::trace_unsynchronized::h56cf2035161a18d9
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x5645b982d060 - std::sys_common::backtrace::_print_fmt::hfd16b930749fd013
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/sys_common/backtrace.rs:67:5
3: 0x5645b982d060 - ::fmt::h50d455647eab6579
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/sys_common/backtrace.rs:46:22
4: 0x5645b9852d7c - core::fmt::write::hfdcdeb08fb2b3afa
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/core/src/fmt/mod.rs:1096:17
5: 0x5645b9825742 - std::io::Write::write_fmt::hf1cdfbccd874d77e
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/io/mod.rs:1568:15
6: 0x5645b982f195 - std::sys_common::backtrace::_print::h35bf1431e4a67498
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/sys_common/backtrace.rs:49:5
7: 0x5645b982f195 - std::sys_common::backtrace::print::ha577b54ca4ed89f1
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/sys_common/backtrace.rs:36:9
8: 0x5645b982f195 - std::panicking::default_hook::{{closure}}::h041688187fb081e5
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/panicking.rs:208:50
9: 0x5645b982ecf3 - std::panicking::default_hook::h38b8114a34b4f6c0
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/panicking.rs:225:9
10: 0x5645b982f931 - std::panicking::rust_panic_with_hook::h58660c406232fbfc
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/panicking.rs:591:17
11: 0x5645b982f477 - std::panicking::begin_panic_handler::{{closure}}::hff097664637c7a44
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/panicking.rs:497:13
12: 0x5645b982d4fc - std::sys_common::backtrace::__rust_end_short_backtrace::h8a007fccc86c0e19
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/sys_common/backtrace.rs:141:18
13: 0x5645b982f3d9 - rust_begin_unwind
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/panicking.rs:493:5
14: 0x5645b982f38b - std::panicking::begin_panic_fmt::hfb8db915a9669ea7
at /rustc/4d25f4607015a56d18d7c6c649441608a9298845/library/std/src/panicking.rs:435:5
15: 0x5645b7a38de6 - wgpu::backend::direct::Context::handle_error_fatal::hf640dda26a822304
at /home/cryptkeeper/.cargo/registry/src/github.com-1ecc6299db9ec823/wgpu-0.7.0/src/backend/direct.rs:129:9
16: 0x5645b7a40f07 - ::queue_write_texture::hf47997cac9db2cd1
at /home/cryptkeeper/.cargo/registry/src/github.com-1ecc6299db9ec823/wgpu-0.7.0/src/backend/direct.rs:1845:25
17: 0x5645b7b2a6bc - wgpu::Queue::write_texture::h71bd382e7ce7852a
at /home/cryptkeeper/.cargo/registry/src/github.com-1ecc6299db9ec823/wgpu-0.7.0/src/lib.rs:2780:9
18: 0x5645b75a0887 - ruffle_render_wgpu::WgpuRenderBackend::register_bitmap::hfef7ae8513eed427
at /tmp/ruffle/render/wgpu/src/lib.rs:705:9
```
Error Info
Error name: Error Error message: panicked at 'assertion failed:
(left == right)left:true, right:false: cannot recursively acquire mutex', /rustc/cb75ad5db02783e8b0222fee363c5f63f7e2cf5b/library/std/src/sys/wasm/../unsupported/mutex.rs:23:9 Error stack:Player Info
Allows script access: false
Page Info
Page URL: https://gamcore.com/games/school_girls_1_a_new_job SWF URL: https://fgn.cdn.serverable.com/common/flashes/ff/s/school_girls_1_a_new_job.swf?d=20191106065912
Browser Info
Useragent: Mozilla/5.0 (Linux; Android 10; 5007Z) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.106 Mobile Safari/537.36 OS: Linux armv7l
Ruffle Info
Version: 0.1.0 Name: nightly 2021-02-14 Channel: nightly Built: 2021-02-14T00:19:03.523Z Commit: ecd873eb39c141f9bf2e41454c7a47d5f7e9507c