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[GH-ISSUE #760] Panic when opening Alsa soundcard with Snapserver #407

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opened 2026-02-27 19:30:27 +03:00 by kerem · 3 comments
kerem commented 2026-02-27 19:30:27 +03:00
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Originally created by @lukasdietz on GitHub (May 26, 2021).
Original GitHub issue: https://github.com/librespot-org/librespot/issues/760

Originally assigned to: @roderickvd on GitHub.

Hey there,

I am facing an issue using librespot.
I have installed librespot using cargo install librespot and used it together with snapcast.
Everything worked great for around 2 weeks before it wouldn't work anymore.

If I start librespot everything works as long as nothing happens. If I am trying to connect Librespot with Spotify it panics right away:

[2021-05-26T13:17:17Z INFO  librespot] librespot 0.2.0 UNKNOWN (Built on 2021-05-26, Build ID: FooKApaN)
[2021-05-26T13:17:25Z INFO  librespot_core::session] Connecting to AP "gew1-accesspoint-b-d9lk.ap.spotify.com:4070"
[2021-05-26T13:17:25Z INFO  librespot_core::session] Authenticated as "8sybhylbg9kotiukantktue31" !
[2021-05-26T13:17:25Z INFO  librespot_core::session] Country: "DE"
[2021-05-26T13:17:25Z INFO  librespot_playback::audio_backend::rodio] Using Rodio sink with format S16 and cpal host: ALSA
[2021-05-26T13:17:25Z INFO  librespot_playback::audio_backend::rodio] Using audio device: default
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default
thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: StreamError(NoDevice)', /root/.cargo/registry/src/github.com-1ecc6299db9ec823/librespot-playback-0.2.0/src/audio_backend/rodio.rs:165:53
stack backtrace:
   0:     0x55f3c8416290 - std::backtrace_rs::backtrace::libunwind::trace::h5e9d00f0cdf4f57e
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
   1:     0x55f3c8416290 - std::backtrace_rs::backtrace::trace_unsynchronized::hd5302bd66215dab9
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x55f3c8416290 - std::sys_common::backtrace::_print_fmt::ha0237cd11a34e2bf
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:67:5
   3:     0x55f3c8416290 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h171d4c10df1a98ee
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:46:22
   4:     0x55f3c843b0ec - core::fmt::write::h89e4288724daa3fa
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/fmt/mod.rs:1096:17
   5:     0x55f3c840ea52 - std::io::Write::write_fmt::h6d40f996e84584d9
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/io/mod.rs:1568:15
   6:     0x55f3c8418725 - std::sys_common::backtrace::_print::h0c0b93221682afc8
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:49:5
   7:     0x55f3c8418725 - std::sys_common::backtrace::print::h57a9f95204c2fdd6
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:36:9
   8:     0x55f3c8418725 - std::panicking::default_hook::{{closure}}::h4245258b50e37e69
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:208:50
   9:     0x55f3c8418283 - std::panicking::default_hook::h7b00dcc1d0944747
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:225:9
  10:     0x55f3c8418ec1 - std::panicking::rust_panic_with_hook::h71e6a073d87de1f5
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:591:17
  11:     0x55f3c8418a07 - std::panicking::begin_panic_handler::{{closure}}::hd549436f6bb6dbb8
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:497:13
  12:     0x55f3c841672c - std::sys_common::backtrace::__rust_end_short_backtrace::h4e5f4b72b04174c3
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:141:18
  13:     0x55f3c8418969 - rust_begin_unwind
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:493:5
  14:     0x55f3c8438861 - core::panicking::panic_fmt::hcd56f7f635f62c74
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/panicking.rs:92:14
  15:     0x55f3c8438683 - core::option::expect_none_failed::hf37eebedadde29e6
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/option.rs:1300:5
  16:     0x55f3c8130058 - librespot_playback::audio_backend::rodio::mk_rodio::h171789833993c2dc
  17:     0x55f3c801827b - std::sys_common::backtrace::__rust_begin_short_backtrace::hdcf24dc2879da306
  18:     0x55f3c8051dec - core::ops::function::FnOnce::call_once{{vtable.shim}}::h308505981f8cf5ba
  19:     0x55f3c842064a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h61144a2be4ee36d8
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/alloc/src/boxed.rs:1521:9
  20:     0x55f3c842064a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hcf5d395fdd120c17
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/alloc/src/boxed.rs:1521:9
  21:     0x55f3c842064a - std::sys::unix::thread::Thread::new::thread_start::hb5e40d3d934ebb7a
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys/unix/thread.rs:71:17
  22:     0x7f2bfa682fa3 - start_thread
  23:     0x7f2bfa4294cf - clone
  24:                0x0 - <unknown>
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: SendError(Load(SpotifyId { id: <SpotifyID>, audio_type: Track }, false, 1228))', /root/.cargo/registry/src/github.com-1ecc6299db9ec823/librespot-playback-0.2.0/src/player.rs:334:51
stack backtrace:
   0:     0x55f3c8416290 - std::backtrace_rs::backtrace::libunwind::trace::h5e9d00f0cdf4f57e
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
   1:     0x55f3c8416290 - std::backtrace_rs::backtrace::trace_unsynchronized::hd5302bd66215dab9
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x55f3c8416290 - std::sys_common::backtrace::_print_fmt::ha0237cd11a34e2bf
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:67:5
   3:     0x55f3c8416290 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h171d4c10df1a98ee
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:46:22
   4:     0x55f3c843b0ec - core::fmt::write::h89e4288724daa3fa
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/fmt/mod.rs:1096:17
   5:     0x55f3c840ea52 - std::io::Write::write_fmt::h6d40f996e84584d9
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/io/mod.rs:1568:15
   6:     0x55f3c8418725 - std::sys_common::backtrace::_print::h0c0b93221682afc8
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:49:5
   7:     0x55f3c8418725 - std::sys_common::backtrace::print::h57a9f95204c2fdd6
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:36:9
   8:     0x55f3c8418725 - std::panicking::default_hook::{{closure}}::h4245258b50e37e69
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:208:50
   9:     0x55f3c8418283 - std::panicking::default_hook::h7b00dcc1d0944747
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:225:9
  10:     0x55f3c8418ec1 - std::panicking::rust_panic_with_hook::h71e6a073d87de1f5
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:591:17
  11:     0x55f3c8418a07 - std::panicking::begin_panic_handler::{{closure}}::hd549436f6bb6dbb8
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:497:13
  12:     0x55f3c841672c - std::sys_common::backtrace::__rust_end_short_backtrace::h4e5f4b72b04174c3
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:141:18
  13:     0x55f3c8418969 - rust_begin_unwind
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:493:5
  14:     0x55f3c8438861 - core::panicking::panic_fmt::hcd56f7f635f62c74
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/panicking.rs:92:14
  15:     0x55f3c8438683 - core::option::expect_none_failed::hf37eebedadde29e6
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/option.rs:1300:5
  16:     0x55f3c810dd8f - librespot_playback::player::Player::load::ha0c442d0f993bc55
  17:     0x55f3c80b4c5a - librespot_connect::spirc::SpircTask::load_track::h0e341e1961cf6e70
  18:     0x55f3c80b23eb - librespot_connect::spirc::SpircTask::handle_frame::h5d4baec7b99df48b
  19:     0x55f3c8039d12 - <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::h91f4475b0d1a5aac
  20:     0x55f3c80370a3 - <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::h45d0cb9326ea4322
  21:     0x55f3c801999b - <tokio::future::poll_fn::PollFn<F> as core::future::future::Future>::poll::h99bfec52701b0988
  22:     0x55f3c8044be7 - librespot::main::{{closure}}::hf174eb5dadaa6a1e
  23:     0x55f3c8002f67 - tokio::macros::scoped_tls::ScopedKey<T>::set::h5afe8179ff76e611
  24:     0x55f3c7fe644f - tokio::runtime::basic_scheduler::BasicScheduler<P>::block_on::h0468d0126abaf00b
  25:     0x55f3c8003aeb - tokio::runtime::Runtime::block_on::h21c5ac6de7a02619
  26:     0x55f3c7fee7a0 - librespot::main::hfa2dab2558bf6cc3
  27:     0x55f3c8018673 - std::sys_common::backtrace::__rust_begin_short_backtrace::heea75a7113230c2d
  28:     0x55f3c807f6b9 - std::rt::lang_start::{{closure}}::h0bed97e3334e6172
  29:     0x55f3c84193d7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h527fb2333ede305e
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/ops/function.rs:259:13
  30:     0x55f3c84193d7 - std::panicking::try::do_call::h309d8aee8149866c
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:379:40
  31:     0x55f3c84193d7 - std::panicking::try::h75a60c31fd16bfc6
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:343:19
  32:     0x55f3c84193d7 - std::panic::catch_unwind::h1f9892423e99bc00
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panic.rs:431:14
  33:     0x55f3c84193d7 - std::rt::lang_start_internal::hd5b67df56ca01dae
                               at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/rt.rs:51:25
  34:     0x55f3c7fee862 - main
  35:     0x7f2bfa35409b - __libc_start_main
  36:     0x55f3c7fd60ca - _start
  37:                0x0 - <unknown>
[2021-05-26T13:17:26Z ERROR librespot_playback::player] Player thread panicked!

Strange thing for me is, that it stopped working without me changing anything.
Hope there is somebody to help me out!

With best regards
Lukas

Originally created by @lukasdietz on GitHub (May 26, 2021). Original GitHub issue: https://github.com/librespot-org/librespot/issues/760 Originally assigned to: @roderickvd on GitHub. Hey there, I am facing an issue using librespot. I have installed librespot using `cargo install librespot` and used it together with snapcast. Everything worked great for around 2 weeks before it wouldn't work anymore. If I start librespot everything works as long as nothing happens. If I am trying to connect Librespot with Spotify it panics right away: ``` [2021-05-26T13:17:17Z INFO librespot] librespot 0.2.0 UNKNOWN (Built on 2021-05-26, Build ID: FooKApaN) [2021-05-26T13:17:25Z INFO librespot_core::session] Connecting to AP "gew1-accesspoint-b-d9lk.ap.spotify.com:4070" [2021-05-26T13:17:25Z INFO librespot_core::session] Authenticated as "8sybhylbg9kotiukantktue31" ! [2021-05-26T13:17:25Z INFO librespot_core::session] Country: "DE" [2021-05-26T13:17:25Z INFO librespot_playback::audio_backend::rodio] Using Rodio sink with format S16 and cpal host: ALSA [2021-05-26T13:17:25Z INFO librespot_playback::audio_backend::rodio] Using audio device: default ALSA lib confmisc.c:767:(parse_card) cannot find card '0' ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM default thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: StreamError(NoDevice)', /root/.cargo/registry/src/github.com-1ecc6299db9ec823/librespot-playback-0.2.0/src/audio_backend/rodio.rs:165:53 stack backtrace: 0: 0x55f3c8416290 - std::backtrace_rs::backtrace::libunwind::trace::h5e9d00f0cdf4f57e at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 1: 0x55f3c8416290 - std::backtrace_rs::backtrace::trace_unsynchronized::hd5302bd66215dab9 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 2: 0x55f3c8416290 - std::sys_common::backtrace::_print_fmt::ha0237cd11a34e2bf at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:67:5 3: 0x55f3c8416290 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h171d4c10df1a98ee at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:46:22 4: 0x55f3c843b0ec - core::fmt::write::h89e4288724daa3fa at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/fmt/mod.rs:1096:17 5: 0x55f3c840ea52 - std::io::Write::write_fmt::h6d40f996e84584d9 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/io/mod.rs:1568:15 6: 0x55f3c8418725 - std::sys_common::backtrace::_print::h0c0b93221682afc8 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:49:5 7: 0x55f3c8418725 - std::sys_common::backtrace::print::h57a9f95204c2fdd6 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:36:9 8: 0x55f3c8418725 - std::panicking::default_hook::{{closure}}::h4245258b50e37e69 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:208:50 9: 0x55f3c8418283 - std::panicking::default_hook::h7b00dcc1d0944747 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:225:9 10: 0x55f3c8418ec1 - std::panicking::rust_panic_with_hook::h71e6a073d87de1f5 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:591:17 11: 0x55f3c8418a07 - std::panicking::begin_panic_handler::{{closure}}::hd549436f6bb6dbb8 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:497:13 12: 0x55f3c841672c - std::sys_common::backtrace::__rust_end_short_backtrace::h4e5f4b72b04174c3 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:141:18 13: 0x55f3c8418969 - rust_begin_unwind at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:493:5 14: 0x55f3c8438861 - core::panicking::panic_fmt::hcd56f7f635f62c74 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/panicking.rs:92:14 15: 0x55f3c8438683 - core::option::expect_none_failed::hf37eebedadde29e6 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/option.rs:1300:5 16: 0x55f3c8130058 - librespot_playback::audio_backend::rodio::mk_rodio::h171789833993c2dc 17: 0x55f3c801827b - std::sys_common::backtrace::__rust_begin_short_backtrace::hdcf24dc2879da306 18: 0x55f3c8051dec - core::ops::function::FnOnce::call_once{{vtable.shim}}::h308505981f8cf5ba 19: 0x55f3c842064a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h61144a2be4ee36d8 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/alloc/src/boxed.rs:1521:9 20: 0x55f3c842064a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hcf5d395fdd120c17 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/alloc/src/boxed.rs:1521:9 21: 0x55f3c842064a - std::sys::unix::thread::Thread::new::thread_start::hb5e40d3d934ebb7a at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys/unix/thread.rs:71:17 22: 0x7f2bfa682fa3 - start_thread 23: 0x7f2bfa4294cf - clone 24: 0x0 - <unknown> thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: SendError(Load(SpotifyId { id: <SpotifyID>, audio_type: Track }, false, 1228))', /root/.cargo/registry/src/github.com-1ecc6299db9ec823/librespot-playback-0.2.0/src/player.rs:334:51 stack backtrace: 0: 0x55f3c8416290 - std::backtrace_rs::backtrace::libunwind::trace::h5e9d00f0cdf4f57e at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 1: 0x55f3c8416290 - std::backtrace_rs::backtrace::trace_unsynchronized::hd5302bd66215dab9 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 2: 0x55f3c8416290 - std::sys_common::backtrace::_print_fmt::ha0237cd11a34e2bf at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:67:5 3: 0x55f3c8416290 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h171d4c10df1a98ee at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:46:22 4: 0x55f3c843b0ec - core::fmt::write::h89e4288724daa3fa at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/fmt/mod.rs:1096:17 5: 0x55f3c840ea52 - std::io::Write::write_fmt::h6d40f996e84584d9 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/io/mod.rs:1568:15 6: 0x55f3c8418725 - std::sys_common::backtrace::_print::h0c0b93221682afc8 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:49:5 7: 0x55f3c8418725 - std::sys_common::backtrace::print::h57a9f95204c2fdd6 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:36:9 8: 0x55f3c8418725 - std::panicking::default_hook::{{closure}}::h4245258b50e37e69 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:208:50 9: 0x55f3c8418283 - std::panicking::default_hook::h7b00dcc1d0944747 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:225:9 10: 0x55f3c8418ec1 - std::panicking::rust_panic_with_hook::h71e6a073d87de1f5 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:591:17 11: 0x55f3c8418a07 - std::panicking::begin_panic_handler::{{closure}}::hd549436f6bb6dbb8 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:497:13 12: 0x55f3c841672c - std::sys_common::backtrace::__rust_end_short_backtrace::h4e5f4b72b04174c3 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/sys_common/backtrace.rs:141:18 13: 0x55f3c8418969 - rust_begin_unwind at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:493:5 14: 0x55f3c8438861 - core::panicking::panic_fmt::hcd56f7f635f62c74 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/panicking.rs:92:14 15: 0x55f3c8438683 - core::option::expect_none_failed::hf37eebedadde29e6 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/option.rs:1300:5 16: 0x55f3c810dd8f - librespot_playback::player::Player::load::ha0c442d0f993bc55 17: 0x55f3c80b4c5a - librespot_connect::spirc::SpircTask::load_track::h0e341e1961cf6e70 18: 0x55f3c80b23eb - librespot_connect::spirc::SpircTask::handle_frame::h5d4baec7b99df48b 19: 0x55f3c8039d12 - <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::h91f4475b0d1a5aac 20: 0x55f3c80370a3 - <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::h45d0cb9326ea4322 21: 0x55f3c801999b - <tokio::future::poll_fn::PollFn<F> as core::future::future::Future>::poll::h99bfec52701b0988 22: 0x55f3c8044be7 - librespot::main::{{closure}}::hf174eb5dadaa6a1e 23: 0x55f3c8002f67 - tokio::macros::scoped_tls::ScopedKey<T>::set::h5afe8179ff76e611 24: 0x55f3c7fe644f - tokio::runtime::basic_scheduler::BasicScheduler<P>::block_on::h0468d0126abaf00b 25: 0x55f3c8003aeb - tokio::runtime::Runtime::block_on::h21c5ac6de7a02619 26: 0x55f3c7fee7a0 - librespot::main::hfa2dab2558bf6cc3 27: 0x55f3c8018673 - std::sys_common::backtrace::__rust_begin_short_backtrace::heea75a7113230c2d 28: 0x55f3c807f6b9 - std::rt::lang_start::{{closure}}::h0bed97e3334e6172 29: 0x55f3c84193d7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h527fb2333ede305e at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/core/src/ops/function.rs:259:13 30: 0x55f3c84193d7 - std::panicking::try::do_call::h309d8aee8149866c at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:379:40 31: 0x55f3c84193d7 - std::panicking::try::h75a60c31fd16bfc6 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panicking.rs:343:19 32: 0x55f3c84193d7 - std::panic::catch_unwind::h1f9892423e99bc00 at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/panic.rs:431:14 33: 0x55f3c84193d7 - std::rt::lang_start_internal::hd5b67df56ca01dae at /rustc/2fd73fabe469357a12c2c974c140f67e7cdd76d0/library/std/src/rt.rs:51:25 34: 0x55f3c7fee862 - main 35: 0x7f2bfa35409b - __libc_start_main 36: 0x55f3c7fd60ca - _start 37: 0x0 - <unknown> [2021-05-26T13:17:26Z ERROR librespot_playback::player] Player thread panicked! ``` Strange thing for me is, that it stopped working without me changing anything. Hope there is somebody to help me out! With best regards Lukas
kerem 2026-02-27 19:30:27 +03:00
kerem commented 2026-02-27 19:30:27 +03:00
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@roderickvd commented on GitHub (May 26, 2021):

The error means that it cannot find or open the soundcard on Alsa.

When you say "without me changing anything" you confirm:

  • You were running librespot 0.2.0 before? The log says you built it on 2021-05-26 so this cannot be the same as 2 weeks before.
  • You did not perform any system updates?
  • You did not change any configuration files (including /etc/group)?

Besides the questions above, please do the following:

  • try running with librespot --backend alsa instead of Rodio (compile with cargo install librespot --features alsa-backend)
  • report the output of aplay -L
  • report the output of librespot --device ?
<!-- gh-comment-id:848827501 --> @roderickvd commented on GitHub (May 26, 2021): The error means that it cannot find or open the soundcard on Alsa. When you say "without me changing anything" you confirm: - You were running `librespot` 0.2.0 before? The log says you built it on 2021-05-26 so this cannot be the same as 2 weeks before. - You did not perform any system updates? - You did not change any configuration files (including `/etc/group`)? Besides the questions above, please do the following: - try running with `librespot --backend alsa` instead of Rodio (compile with `cargo install librespot --features alsa-backend`) - report the output of `aplay -L` - report the output of `librespot --device ?`
kerem commented 2026-02-27 19:30:27 +03:00
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@lukasdietz commented on GitHub (May 27, 2021):

Sorry for not beeing clear. I forgot to mention, that I reinstalled Librespot today as a first try to fix this on my own.
But for all your other questions: Yes I did run librespot 0.2.0 before and did not change any configuration or run updates.
The only thing I could mention was a reboot of my proxmox host where the lxc with librespot is running on.

I tried compiling librespot as mentioned. Now I can start librespot and connect with spotify without crashing.

The output of aplay -L is

null
Discard all samples (playback) or generate zero samples (capture)

I am not sure if I need a soundcard, as I am using librespot with snapserver.

<!-- gh-comment-id:849354874 --> @lukasdietz commented on GitHub (May 27, 2021): Sorry for not beeing clear. I forgot to mention, that I reinstalled Librespot today as a first try to fix this on my own. But for all your other questions: Yes I did run librespot 0.2.0 before and did not change any configuration or run updates. The only thing I could mention was a reboot of my proxmox host where the lxc with librespot is running on. I tried compiling librespot as mentioned. Now I can start librespot and connect with spotify without crashing. The output of `aplay -L` is ``` null Discard all samples (playback) or generate zero samples (capture) ``` I am not sure if I need a soundcard, as I am using librespot with snapserver.
kerem commented 2026-02-27 19:30:27 +03:00
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@roderickvd commented on GitHub (May 27, 2021):

That aplay output means that there no PCMs available. I've never used Snapcast and so don't know how that's supposed to work. But I'm glad to hear it's now working for you.

<!-- gh-comment-id:849365925 --> @roderickvd commented on GitHub (May 27, 2021): That `aplay` output means that there no PCMs available. I've never used Snapcast and so don't know how that's supposed to work. But I'm glad to hear it's now working for you.
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