We pushed the final changes in the code and we have the same issue still. On
running with backtrace, I got the following output:
RUST_BACKTRACE=1 ./target/debug/constant_source
thread 'AudioRenderThread' panicked at 'index 128 out of range for slice of
length 0', libcore/slice/mod.rs:1932:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose
backtrace.
stack backtrace:
0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
1: std::sys_common::backtrace::print
at libstd/sys_common/backtrace.rs:71
at libstd/sys_common/backtrace.rs:59
2: std::panicking::default_hook::{{closure}}
at libstd/panicking.rs:211
3: std::panicking::default_hook
at libstd/panicking.rs:227
4: std::panicking::rust_panic_with_hook
at libstd/panicking.rs:477
5: std::panicking::continue_panic_fmt
at libstd/panicking.rs:391
6: rust_begin_unwind
at libstd/panicking.rs:326
7: core::panicking::panic_fmt
at libcore/panicking.rs:77
8: core::slice::slice_index_len_fail
at libcore/slice/mod.rs:1932
9: <core::ops::range::Range<usize> as core::slice::SliceIndex<[T]>>::index
at libcore/slice/mod.rs:2097
10: core::slice::<impl core::ops::index::Index<I> for [T]>::index
at libcore/slice/mod.rs:1914
11: <alloc::vec::Vec<T> as core::ops::index::Index<I>>::index
at liballoc/vec.rs:1725
12: servo_media_audio::block::Block::data_chan
at audio/src/block.rs:166
13: servo_media_audio::param::Param::update
at audio/src/param.rs:100
14: servo_media_audio::gain_node::GainNode::update_parameters
at audio/src/gain_node.rs:34
15: <servo_media_audio::gain_node::GainNode as
servo_media_audio::node::AudioNodeEngine>::process
at audio/src/gain_node.rs:55
16: servo_media_audio::graph::AudioGraph::process
at audio/src/graph.rs:436
17: <servo_media_audio::render_thread::AudioRenderThread<S>>::process
at ./audio/src/render_thread.rs:226
18: <servo_media_audio::render_thread::AudioRenderThread<S>>::event_loop
at ./audio/src/render_thread.rs:312
19: <servo_media_audio::render_thread::AudioRenderThread<S>>::start
at ./audio/src/render_thread.rs:159
20: <servo_media_audio::context::AudioContext<B>>::new::{{closure}}
at ./audio/src/context.rs:137
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value:
RecvError', libcore/result.rs:1009:5
stack backtrace:
0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
1: std::sys_common::backtrace::print
at libstd/sys_common/backtrace.rs:71
at libstd/sys_common/backtrace.rs:59
2: std::panicking::default_hook::{{closure}}
at libstd/panicking.rs:211
3: std::panicking::default_hook
at libstd/panicking.rs:227
4: std::panicking::rust_panic_with_hook
at libstd/panicking.rs:477
5: std::panicking::continue_panic_fmt
at libstd/panicking.rs:391
6: rust_begin_unwind
at libstd/panicking.rs:326
7: core::panicking::panic_fmt
at libcore/panicking.rs:77
8: core::result::unwrap_failed
at libcore/macros.rs:26
9: <core::result::Result<T, E>>::unwrap
at libcore/result.rs:808
10: <servo_media_audio::context::AudioContext<B>>::close
at ./audio/src/macros.rs:24
11: constant_source::run_example
at examples/constant_source.rs:82
12: constant_source::main
at examples/constant_source.rs:88
13: std::rt::lang_start::{{closure}}
at libstd/rt.rs:74
14: std::panicking::try::do_call
at libstd/rt.rs:59
at libstd/panicking.rs:310
15: __rust_maybe_catch_panic
at libpanic_unwind/lib.rs:103
16: std::rt::lang_start_internal
at libstd/panicking.rs:289
at libstd/panic.rs:392
at libstd/rt.rs:58
17: std::rt::lang_start
at libstd/rt.rs:74
18: main
19: __libc_start_main
20: _start
The GitHub issue I referred to earlier is :
https://github.com/servo/media/pull/122
<https://github.com/servo/media/pull/122>
Please let me know what we can do to fix it. I also want to know if is it
necessary to send any message to the gain node.
Thank you
> On Nov 30, 2018, at 10:22 AM, Manish Goregaokar <manishsm...@gmail.com> wrote:
>
> It would be helpful to see what your changes are and what test command
> you're running (along with a full backtrace, setting RUST_BACKTRACE=1 will
> let you get one).
>
> I'm unable to get this same error when I test your pull request locally.
> (Which github issue are you talking about?)
> -Manish Goregaokar
>
>
> On Fri, Nov 30, 2018 at 6:38 AM Avanthikaa Ravichandran <aravi...@ncsu.edu>
> wrote:
>
>> I made changes to the ConstantSourceNode example as suggested in the review
>> for the pull request. However, I am getting the following error while
>> running the file:
>>
>> thread 'AudioRenderThread' panicked at 'index 128 out of range for slice of
>> length 0', libcore/slice/mod.rs:1932:5
>> note: Run with `RUST_BACKTRACE=1` for a backtrace.
>> thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value:
>> RecvError', libcore/result.rs:1009:5
>>
>> I'm not sure how to rectify this and the GitHub issue that was opened
>> doesn't seem to have been resolved yet.
>>
>> Thank you
>> _______________________________________________
>> dev-servo mailing list
>> dev-servo@lists.mozilla.org
>> https://lists.mozilla.org/listinfo/dev-servo
>>
> _______________________________________________
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