Local build crashes

[azsde]

Hello,

I followed the instructions to build squeekboard, but it crashes when trying to run it:

thread '<unnamed>' panicked at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.17.0/src/sys/socket/mod.rs:1205:33:
null pointer dereference occurred
stack backtrace:

** (squeekboard:10973): WARNING **: 18:16:57.785: Could not register to session manager: Cannot invoke method; proxy is for the well-known name “org.gnome.SessionManager” without an owner, and proxy was constructed with the G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag

   0:       0x5590db8c08 - std::backtrace_rs::backtrace::libunwind::trace::h80a834740e37061b
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
   1:       0x5590db8c08 - std::backtrace_rs::backtrace::trace_unsynchronized::h8db4c318f99c6571
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
   2:       0x5590db8c08 - std::sys::backtrace::_print_fmt::h7f7b542ba53a5bc6
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/sys/backtrace.rs:66:9
   3:       0x5590db8c08 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h2747bfd80d11ff7b
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/sys/backtrace.rs:39:26
   4:       0x5590dfff3c - core::fmt::rt::Argument::fmt::he9ff5cb74d153e09
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/core/src/fmt/rt.rs:173:76
   5:       0x5590dfff3c - core::fmt::write::haee122d9e6b18100
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/core/src/fmt/mod.rs:1465:25
   6:       0x5590dad2c8 - std::io::default_write_fmt::h1ba8124286647cf9
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/io/mod.rs:639:11
   7:       0x5590dad2c8 - std::io::Write::write_fmt::he0158f6169f4cd69
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/io/mod.rs:1954:13
   8:       0x5590db8abc - std::sys::backtrace::BacktraceLock::print::ha08130ed18fd0194
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/sys/backtrace.rs:42:9
   9:       0x5590dbc4ec - std::panicking::default_hook::{{closure}}::hba6d19cf2c555d9c
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/panicking.rs:300:27
  10:       0x5590dbc348 - std::panicking::default_hook::hbff32ff95437400d
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/panicking.rs:327:9
  11:       0x5590dbcec8 - std::panicking::rust_panic_with_hook::h28899ec3e5e03105
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/panicking.rs:833:13
  12:       0x5590dbcc38 - std::panicking::begin_panic_handler::{{closure}}::h60f6be6227bda39d
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/panicking.rs:699:13
  13:       0x5590db90f8 - std::sys::backtrace::__rust_end_short_backtrace::hcc8118117670542a
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/sys/backtrace.rs:168:18
  14:       0x5590dbc944 - __rustc[5224e6b81cd82a8f]::rust_begin_unwind
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/panicking.rs:697:5
  15:       0x559057bd6c - core::panicking::panic_nounwind_fmt::runtime::hf32fba20408fc31f
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/core/src/panicking.rs:117:22
  16:       0x559057bd6c - core::panicking::panic_nounwind_fmt::he3c0f99f63f23666
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/core/src/intrinsics/mod.rs:2340:9
  17:       0x559057bf48 - core::panicking::panic_null_pointer_dereference::h62085dea607a534d
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/core/src/panicking.rs:311:5
  18:       0x55906bde90 - nix::sys::socket::sockaddr_storage_to_addr::hf7be2e4b962eaf7a
                               at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.17.0/src/macros.rs:211:9
  19:       0x55906bd1c0 - nix::sys::socket::recvmsg::{{closure}}::hf20286f31d91f872
                               at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.17.0/src/sys/socket/mod.rs:881:13
  20:       0x55906c91b0 - core::result::Result<T,E>::map::h99b039d9bb5ff78e
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/core/src/result.rs:801:25
  21:       0x55906bd040 - nix::sys::socket::recvmsg::h5112d626a0e33d9c
                               at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.17.0/src/sys/socket/mod.rs:864:24
  22:       0x5590684134 - zbus::utils::read_exact::hd4a49bbbe6a673e8
                               at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/zbus-1.0.0/src/utils.rs:59:15
  23:       0x55906741d8 - zbus::connection::Connection::receive_message::h0d687b171af0cb3c
                               at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/zbus-1.0.0/src/connection.rs:244:27
  24:       0x5590675400 - zbus::connection::Connection::call_method::h438bf3fc74ee515f
                               at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/zbus-1.0.0/src/connection.rs:324:26
  25:       0x5590681900 - zbus::proxy::Proxy::call_method::hf3071b2c059b936d
                               at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/zbus-1.0.0/src/proxy.rs:117:31
  26:       0x5590683054 - zbus::proxy::Proxy::call::ha4e8853a2de7b7a4
                               at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/zbus-1.0.0/src/proxy.rs:144:17
  27:       0x5590690e2c - zbus::fdo::DBusProxy::hello::h86d3c99a7b9233ad
                               at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/zbus-1.0.0/src/fdo.rs:156:1
  28:       0x5590672c78 - zbus::connection::Connection::new_unix_client::hda30af48f83b9b51
                               at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/zbus-1.0.0/src/connection.rs:109:22
  29:       0x5590673030 - zbus::connection::Connection::new_session::h90ddb0543f72a72e
                               at /home/azsde/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/zbus-1.0.0/src/connection.rs:119:9
  30:       0x55905a8c7c - rs::actors::external::debug::start::he2296f5f9fc6d3cc
                               at /home/azsde/squeekboard/src/actors/external/debug.rs:42:22
  31:       0x5590e4f4e0 - rs::actors::external::debug::init::{{closure}}::hf062fe88aefd2276
                               at /home/azsde/squeekboard/src/actors/external/debug.rs:64:9
  32:       0x5590e39228 - std::sys::backtrace::__rust_begin_short_backtrace::h569b5aff6417d2b6
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/sys/backtrace.rs:152:18
  33:       0x5590e188dc - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h8cc042f8b8c6f5b6
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/thread/mod.rs:559:17
  34:       0x5590e3de64 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hbccc7994f468d8f4
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/core/src/panic/unwind_safe.rs:272:9
  35:       0x5590e12420 - std::panicking::catch_unwind::do_call::h4a0a271b06f9f078
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/panicking.rs:589:40
  36:       0x5590e18d84 - __rust_try
  37:       0x5590e182ec - std::panicking::catch_unwind::h302ca98391df87f6
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/panicking.rs:552:19
  38:       0x5590e182ec - std::panic::catch_unwind::h62347fa176221fd4
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/panic.rs:359:14
  39:       0x5590e182ec - std::thread::Builder::spawn_unchecked_::{{closure}}::hc0968cea35ad25fc
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/thread/mod.rs:557:30
  40:       0x559058ee84 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h18b4fd5ab643a02f
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/core/src/ops/function.rs:250:5
  41:       0x5590dc0edc - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha6950db5b1adcc96
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/alloc/src/boxed.rs:1966:9
  42:       0x5590dc0edc - std::sys::pal::unix::thread::Thread::new::thread_start::he65f0ae0958ca168
                               at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/sys/pal/unix/thread.rs:107:17
  43:       0x7fa5572030 - start_thread
                               at ./nptl/pthread_create.c:442:8
  44:       0x7fa55dbf5c - thread_start
                               at ./misc/../sysdeps/unix/sysv/linux/aarch64/clone.S:79:0
  45:                0x0 - <unknown>
thread caused non-unwinding panic. aborting.

Am I missing something ?

[roliver-rpi]

We only perform vendored/isolated Debian builds of squeekboard. Debian's version of zbus is patched to use nix-0.24 or nix-0.29 (bookworm/trixie dependent) rather than nix-0.17.0 that your build uses. We are only able to support debian builds of this package.

[azsde]

@roliver-rpi I'm not sure I understand completely the issue, I've managed to clone the sources onto my raspberry pi and then followed the steps from the readme:

$ git clone https://github.com/raspberrypi-ui/squeekboard.git
$ cd squeekboard
$ mkdir _build
$ meson _build/
$ cd _build
$ ninja

Are those instructions "wrong" ?

The current Cargo.lock on this repository uses Nix 0.17.0, so I didn't suspect the version was the issue.

Would updating the nix version in the cargo.lock to 0.24 / 0.29 fix my issue ?

If not, could you point me in the right direction to be able to compile correctly Squeekboard for raspbian bookworm ?

I thank you very much for your help.

Regards,

Azsde.

[roliver-rpi]

The instructions aren't "wrong" perse; they're just not our README instructions. They're the instructions that happened to be in the upstream project when squeekboard 1.21.0 was selected for Debian Bookworm.

If you're looking to build the RaspiOS version of squeekboard then you would need to build as a Debian package.

We'd usually use sbuild/schroot for isolated builds but the following should serve as a quick-start:

# Download the squeekboard source package (you'll need deb-src enabled in sources.list)
$ apt source squeekboard
# Parse the Debian control file and install all build dependencies
$ sudo mk-build-deps -i ./squeekboard-1.21.0/debian/control
# Change into the source directory
$ cd squeekboard-1.21.0
# Perform a binary build of the package (skipping signing)
$ dpkg-buildpackage -b -uc -us
# Install your package
$ sudo dpkg -i ../squeekboard_1.21.0-1+rpt11_arm64.deb

[azsde]

Thank you very much, I'm not familiar with this approach when it comes to building packages, but it's great to learn something new ! 😄

[arschmitz]

im also trying to build this on my pi 5 to attempt to fix the issue with squeekboard not working in kiosk mode but i dont get a squeekboard_1.21.0-1+rpt11_arm64.deb i get squeekboard_1.21.0-1_arm64.deb