Wayland: segmentation fault in examples/standalone/02_hello_window on version 24.0.1

[artemious3]

Description

After changing wgpu version from 24.0.0 to 24.0.1, the example application at examples/standalone/02_hello_window receives SEGFAULT after the close request.

Repro steps

1. cd examples/standalone/02_hello_window
2. Replace wgpu = "24.0.0" with wgpu = "24.0.1" in Cargo.toml
3. cargo run
4. Close the window

Expected vs observed behavior

Expected behavior : graceful termination
Observed behavior : SIGSEGV

Extra materials

Logs with RUST_LOG=trace

...
The close button was pressed; stopping
[2025-01-29T18:30:56Z TRACE wgpu_core::device::global] Texture::create_view(Id(0,176)) -> Id(0,176)
[2025-01-29T18:30:56Z TRACE wgpu_core::device::global] Device::create_command_encoder -> Id(0,176)
[2025-01-29T18:30:56Z TRACE wgpu_core::device::queue] Queue::submit
[2025-01-29T18:30:56Z TRACE wgpu_core::resource] Destroy raw TextureView with '' label
[2025-01-29T18:30:56Z TRACE wgpu_core::device::queue] Queue::submit returned submit index 176
[2025-01-29T18:30:56Z TRACE wgpu_core::device::global] CommandBuffer::drop Id(0,176)
[2025-01-29T18:30:56Z TRACE wgpu_core::device::global] CommandEncoder::drop Id(0,176)
[2025-01-29T18:30:56Z TRACE wgpu_core::command] Drop CommandBuffer with '' label
[2025-01-29T18:30:56Z TRACE wgpu_core::device::global] Texture::drop Id(0,176)
[2025-01-29T18:30:56Z TRACE wgpu_core::device::global] TextureView::drop Id(0,176)
[2025-01-29T18:30:56Z TRACE wgpu_core::device::global] Device::drop Id(0,1)
[2025-01-29T18:30:56Z TRACE wgpu_core::device::global] Queue::drop Id(0,1)
[2025-01-29T18:30:56Z TRACE wgpu_core::device::queue] Drop Queue with '' label
[2025-01-29T18:30:56Z TRACE wgpu_core::device::queue] Waiting on last submission. try: 1/6. timeout: 100ms
[2025-01-29T18:30:56Z TRACE wgpu_core::resource] Destroy raw TextureView with '' label
[2025-01-29T18:30:56Z TRACE wgpu_core::instance] Surface::drop Id(0,1)
[1]    74678 segmentation fault (core dumped)  env RUST_LOG=trace ../../../target/debug/wgpu-example-02-hello-window

Backtrace from GDB

Thread 24 "wgpu-example-02" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffc2ffd6c0 (LWP 75644)]
0x00007ffff7fb488c in wl_map_insert_at (map=map@entry=0x555556c8b350, flags=flags@entry=1, i=47, data=<optimized out>) at ../wayland-1.23.1/src/wayland-util.c:290
290		start[i].next |= (flags & 0x1) << 1;
(gdb) bt
#0  0x00007ffff7fb488c in wl_map_insert_at (map=map@entry=0x555556c8b350, flags=flags@entry=1, i=47, data=<optimized out>) at ../wayland-1.23.1/src/wayland-util.c:290
#1  0x00007ffff7fb4a01 in proxy_destroy (proxy=proxy@entry=0x7fffc4001f40) at ../wayland-1.23.1/src/wayland-client.c:574
#2  0x00007ffff7fb4b30 in wl_proxy_destroy_caller_locks (proxy=0x7fffc4001f40) at ../wayland-1.23.1/src/wayland-client.c:598
#3  wl_proxy_destroy (proxy=proxy@entry=0x7fffc4001f40) at ../wayland-1.23.1/src/wayland-client.c:621
#4  0x00007ffff7fb74e5 in wl_callback_destroy (wl_callback=0x7fffc4001f40) at src/wayland-client-protocol.h:1284
#5  wl_display_roundtrip_queue (display=0x555556c8b2c0, queue=0x55555733e2e0) at ../wayland-1.23.1/src/wayland-client.c:1451
#6  0x00007fffe0a07cc5 in ?? () from /usr/lib/amdvlk64.so
#7  0x00007fffe0a07d95 in ?? () from /usr/lib/amdvlk64.so
#8  0x00007fffe0a12724 in ?? () from /usr/lib/amdvlk64.so
#9  0x00007fffe0a7d651 in ?? () from /usr/lib/amdvlk64.so
#10 0x00007ffff7d002ce in start_thread (arg=<optimized out>) at pthread_create.c:447
#11 0x00007ffff7d8529c in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Platform
OS: EndeavourOS x86_64
Kernel: Linux 6.12.10-arch1-1
DE: KDE Plasma 6.2.5
WM: KWin (Wayland)

[cwfitzgerald]

Try running inside the repository does that fix it?

[artemious3]

Only after git reset --hard the problem is fixed.

[cwfitzgerald]

Alright, then this was likely fixed by #6997 and we should probably backport it.