[test-triage] //sw/device/tests:gpio_pinmux_test_sim_verilator is broken

Hierarchy of regression failure

Chip Level

Failure Description

[2023-04-04T17:27:13Z INFO  opentitanlib::transport::verilator::transport] gpio_read = /usr/local/google/home/hcindyl/.cache/bazel/_bazel_hcindyl/29be86bcb7738fde464aa7b1e974a4e1/execroot/lowrisc_opentitan/bazel-out/k8-fastbuild/bin/sw/device/tests/gpio_pinmux_test_sim_verilator.runfiles/lowrisc_opentitan/gpio0-read
[2023-04-04T17:27:13Z INFO  opentitanlib::transport::verilator::transport] gpio_write = /usr/local/google/home/hcindyl/.cache/bazel/_bazel_hcindyl/29be86bcb7738fde464aa7b1e974a4e1/execroot/lowrisc_opentitan/bazel-out/k8-fastbuild/bin/sw/device/tests/gpio_pinmux_test_sim_verilator.runfiles/lowrisc_opentitan/gpio0-write
[2023-04-04T17:27:13Z INFO  opentitanlib::transport::verilator::transport] uart = /dev/pts/23
[2023-04-04T17:27:13Z INFO  opentitanlib::transport::verilator::transport] spi = /dev/pts/22
Error: invalid digit found in string

Stack backtrace:
   0: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from
   1: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
   2: <opentitanlib::transport::verilator::transport::Verilator as opentitanlib::transport::Transport>::gpio_pin
   3: opentitanlib::app::TransportWrapper::gpio_pin
   4: opentitanlib::app::TransportWrapper::apply_pin_configuration
   5: opentitanlib::app::TransportWrapper::apply_pin_configurations
   6: opentitanlib::app::TransportWrapper::apply_default_configuration
   7: opentitanlib::test_utils::init::InitializeTest::init_target
   8: gpio::main
   9: core::ops::function::FnOnce::call_once
  10: std::sys_common::backtrace::__rust_begin_short_backtrace
  11: std::rt::lang_start::{{closure}}
  12: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
             at /rustc/c18a5e8a5b1afb0d7a582fe9ebad4c1996c90da3/library/core/src/ops/function.rs:287:13
  13: std::panicking::try::do_call
             at /rustc/c18a5e8a5b1afb0d7a582fe9ebad4c1996c90da3/library/std/src/panicking.rs:483:40
  14: std::panicking::try
             at /rustc/c18a5e8a5b1afb0d7a582fe9ebad4c1996c90da3/library/std/src/panicking.rs:447:19
  15: std::panic::catch_unwind
             at /rustc/c18a5e8a5b1afb0d7a582fe9ebad4c1996c90da3/library/std/src/panic.rs:140:14
  16: std::rt::lang_start_internal::{{closure}}
             at /rustc/c18a5e8a5b1afb0d7a582fe9ebad4c1996c90da3/library/std/src/rt.rs:148:48
  17: std::panicking::try::do_call
             at /rustc/c18a5e8a5b1afb0d7a582fe9ebad4c1996c90da3/library/std/src/panicking.rs:483:40
  18: std::panicking::try
             at /rustc/c18a5e8a5b1afb0d7a582fe9ebad4c1996c90da3/library/std/src/panicking.rs:447:19
  19: std::panic::catch_unwind
             at /rustc/c18a5e8a5b1afb0d7a582fe9ebad4c1996c90da3/library/std/src/panic.rs:140:14
  20: std::rt::lang_start_internal
             at /rustc/c18a5e8a5b1afb0d7a582fe9ebad4c1996c90da3/library/std/src/rt.rs:148:20
  21: std::rt::lang_start
  22: main
  23: __libc_start_call_main
             at ./csu/../sysdeps/nptl/libc_start_call_main.h:58:16
  24: __libc_start_main_impl
             at ./csu/../csu/libc-start.c:381:3
  25: _start

Steps to Reproduce

• GitHub Revision: 09ebf5660
  bazel test --test_output=errors //sw/device/tests:gpio_pinmux_test_sim_verilator

Tests with similar or related failures

No response

Run bazel test --test_output=errors //sw/device/tests:gpio_pinmux_test_sim_verilator at revision 09ebf5660 and inspect the failure in the Verilator transport gpio_pin path. Trace how apply_pin_configurations reaches gpio_pin and identify why the GPIO value produces an invalid-digit error. Done means the named test passes without this initialization failure.