[Linux] rtsp::handler segfault (SIGSEGV) on client disconnect (reproduced twice)

[Shintaro-66]

Is there an existing issue for this?

• I have searched the existing issues

Is your issue described in the documentation?

• I have read the documentation

Is your issue present in the latest beta/pre-release?

This issue is present in the latest pre-release

Describe the Bug

Sunshine crashes with SIGSEGV in the rtsp::handler thread approximately 15ms after a Moonlight client disconnects during an active stream. This has now been observed twice on the same day, with an identical fault signature both times.

The crash is not in the encoder or capture pipeline — in the first occurrence, the hevc_vulkan encoder thread continued processing and emitting frames normally both immediately before and after the fault. The kernel log shows the instruction pointer landing on an unmapped/invalid address in both cases, consistent with a jump through a stale or dangling function pointer — suggesting a use-after-free in the disconnect/session-teardown path of the RTSP handler.

Occurrence 1: 2026-07-05 09:21:32 AEST
Occurrence 2: 2026-07-05 20:17:59 AEST

Both crashes show the same pattern: CLIENT DISCONNECTED logged, then ~15ms later, SIGSEGV in rtsp::handler with the instruction pointer equal to the faulting address.

Expected Behavior

Sunshine should tear down the RTSP session and continue running (or exit cleanly) without segfaulting when a client disconnects mid-stream.

Additional Context

Coredumps for both occurrences have no symbols (Flatpak build, no debug package installed), so the stack trace is limited to the single faulting frame:
#0 0x00007f553880e030 n/a (n/a + 0x0)

Occurrence 1 kernel log:
rtsp::handler[19664]: segfault at 7fe31a00e030 ip 00007fe31a00e030 sp 00007fe36eff7738 error 14 likely on CPU
Code: Unable to access opcode bytes at 0x7fe31a00e006.

Occurrence 2 kernel log:
rtsp::handler[45382]: segfault at 7f553880e030 ip 00007f553880e030 sp 00007f55799f6738 error 14 likely on CPU 1 (core 1, socket 0)

Both show the instruction pointer matching the fault address exactly — consistent with a call/jump through corrupted or freed memory rather than a normal out-of-bounds read/write.

This is intermittent — most disconnects complete cleanly (confirmed via multiple clean sessions logged at Info level between the two crashes) — but it has now reproduced twice with an identical signature, suggesting a genuine race condition rather than a one-off environmental fluke.

Host Operating System

Linux

Operating System Version

Bazzite (Fedora Atomic/OSTree base), KDE Plasma 6, Wayland

Architecture

amd64/x86_64

Package

Linux - flathub/flatpak

GPU Type

AMD

GPU Model

GPU Model: AMD Radeon RX 9060 XT (RDNA 4)

GPU Driver/Mesa Version

GPU Driver/Mesa Version: Mesa 26.1.3 (mesa-vulkan-drivers-26.1.3-1.fc44)

Capture Method

KMS (Linux)

Apps

Sunshine version: 2026.516.143833 (commit 14ffa6fdaa53f7b51512be2b3d24f3939695403c)

Log output

Note: this log ends at CLIENT DISCONNECTED because the crash happens ~15ms later, before Sunshine can log anything further. Included for completeness / to confirm nothing abnormal preceded the disconnect — the actual crash evidence is the kernel segfault trace and coredump info below.

[2026-07-05 19:57:55.179]: Info: // Testing for available encoders, this may generate errors. You can safely ignore those errors. //
[2026-07-05 19:57:55.179]: Info: Trying encoder [nvenc]
[2026-07-05 19:57:55.179]: Info: Screencasting with XDG portal
[2026-07-05 19:57:55.179]: Info: [pipewire] Requested frame rate [60/1, approx. 60 fps]
[2026-07-05 19:57:55.179]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.189]: Info: [portalgrab] Loaded portal restore token from disk
[2026-07-05 19:57:55.230]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.230]: Info: [wayland] Found interface: zxdg_output_manager_v1(33) version 3
[2026-07-05 19:57:55.230]: Info: [wayland] Found interface: zwp_linux_dmabuf_v1(60) version 5
[2026-07-05 19:57:55.230]: Info: [wayland] Found interface: wl_output(75) version 4
[2026-07-05 19:57:55.230]: Info: [wayland] Found interface: wl_output(77) version 4
[2026-07-05 19:57:55.231]: Info: [wayland] Resolution: 3440x1440
[2026-07-05 19:57:55.231]: Info: [wayland] Resolution: 1920x1080
[2026-07-05 19:57:55.231]: Info: [wayland] Offset: 1920x0
[2026-07-05 19:57:55.231]: Info: [wayland] Logical size: 3440x1440
[2026-07-05 19:57:55.231]: Info: [wayland] Name: DP-1
[2026-07-05 19:57:55.231]: Info: [wayland] Found monitor: Acer Technologies Acer X34
[2026-07-05 19:57:55.231]: Info: [wayland] Offset: 0x0
[2026-07-05 19:57:55.231]: Info: [wayland] Logical size: 1920x1080
[2026-07-05 19:57:55.231]: Info: [wayland] Name: HDMI-A-1
[2026-07-05 19:57:55.231]: Info: [wayland] Found monitor: BNQ BenQ XL2411Z
[2026-07-05 19:57:55.232]: Info: [portalgrab] Using first available stream as no matching stream was found for: ''
[2026-07-05 19:57:55.232]: Info: [pipewire] Streaming display '' offset: 0x0 resolution: 1920x1080
[2026-07-05 19:57:55.232]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.232]: Info: [wayland] Found interface: zxdg_output_manager_v1(33) version 3
[2026-07-05 19:57:55.232]: Info: [wayland] Found interface: zwp_linux_dmabuf_v1(60) version 5
[2026-07-05 19:57:55.232]: Info: [wayland] Found interface: wl_output(75) version 4
[2026-07-05 19:57:55.232]: Info: [wayland] Found interface: wl_output(77) version 4
[2026-07-05 19:57:55.233]: Info: [wayland] Resolution: 3440x1440
[2026-07-05 19:57:55.233]: Info: [wayland] Resolution: 1920x1080
[2026-07-05 19:57:55.233]: Info: [wayland] Offset: 1920x0
[2026-07-05 19:57:55.233]: Info: [wayland] Logical size: 3440x1440
[2026-07-05 19:57:55.233]: Info: [wayland] Name: DP-1
[2026-07-05 19:57:55.233]: Info: [wayland] Found monitor: Acer Technologies Acer X34
[2026-07-05 19:57:55.233]: Info: [wayland] Offset: 0x0
[2026-07-05 19:57:55.233]: Info: [wayland] Logical size: 1920x1080
[2026-07-05 19:57:55.233]: Info: [wayland] Name: HDMI-A-1
[2026-07-05 19:57:55.233]: Info: [wayland] Found monitor: BNQ BenQ XL2411Z
[2026-07-05 19:57:55.235]: Info: [pipewire] Connected to pipewire version 1.6.7
[2026-07-05 19:57:55.240]: Info: [pipewire] Video format: 12
[2026-07-05 19:57:55.240]: Info: [pipewire] Size: 1920x1080
[2026-07-05 19:57:55.240]: Info: [pipewire] Color primaries: 0
[2026-07-05 19:57:55.240]: Info: [pipewire] Transfer function: 0
[2026-07-05 19:57:55.240]: Info: [pipewire] Framerate (from compositor): 0/1 (variable rate capture)
[2026-07-05 19:57:55.240]: Info: [pipewire] using memory buffers
[2026-07-05 19:57:55.245]: Info: Creating encoder [h264_nvenc]
[2026-07-05 19:57:55.245]: Info: Color coding: SDR (Rec. 601)
[2026-07-05 19:57:55.245]: Info: Color depth: 8-bit
[2026-07-05 19:57:55.245]: Info: Color range: JPEG
[2026-07-05 19:57:55.255]: Error: Couldn't load cuda: -1
[2026-07-05 19:57:55.255]: Info: Encoder [nvenc] failed
[2026-07-05 19:57:55.259]: Info: Trying encoder [vulkan]
[2026-07-05 19:57:55.259]: Info: Screencasting with XDG portal
[2026-07-05 19:57:55.259]: Info: [pipewire] Requested frame rate [60/1, approx. 60 fps]
[2026-07-05 19:57:55.259]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.274]: Info: [portalgrab] Loaded portal restore token from disk
[2026-07-05 19:57:55.288]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.288]: Info: [wayland] Found interface: zxdg_output_manager_v1(33) version 3
[2026-07-05 19:57:55.288]: Info: [wayland] Found interface: zwp_linux_dmabuf_v1(60) version 5
[2026-07-05 19:57:55.288]: Info: [wayland] Found interface: wl_output(75) version 4
[2026-07-05 19:57:55.288]: Info: [wayland] Found interface: wl_output(77) version 4
[2026-07-05 19:57:55.288]: Info: [wayland] Resolution: 3440x1440
[2026-07-05 19:57:55.288]: Info: [wayland] Resolution: 1920x1080
[2026-07-05 19:57:55.288]: Info: [wayland] Offset: 1920x0
[2026-07-05 19:57:55.288]: Info: [wayland] Logical size: 3440x1440
[2026-07-05 19:57:55.288]: Info: [wayland] Name: DP-1
[2026-07-05 19:57:55.288]: Info: [wayland] Found monitor: Acer Technologies Acer X34
[2026-07-05 19:57:55.288]: Info: [wayland] Offset: 0x0
[2026-07-05 19:57:55.288]: Info: [wayland] Logical size: 1920x1080
[2026-07-05 19:57:55.288]: Info: [wayland] Name: HDMI-A-1
[2026-07-05 19:57:55.288]: Info: [wayland] Found monitor: BNQ BenQ XL2411Z
[2026-07-05 19:57:55.290]: Info: [portalgrab] Using first available stream as no matching stream was found for: ''
[2026-07-05 19:57:55.290]: Info: [pipewire] Streaming display '' offset: 0x0 resolution: 1920x1080
[2026-07-05 19:57:55.290]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.290]: Info: [wayland] Found interface: zxdg_output_manager_v1(33) version 3
[2026-07-05 19:57:55.290]: Info: [wayland] Found interface: zwp_linux_dmabuf_v1(60) version 5
[2026-07-05 19:57:55.290]: Info: [wayland] Found interface: wl_output(75) version 4
[2026-07-05 19:57:55.290]: Info: [wayland] Found interface: wl_output(77) version 4
[2026-07-05 19:57:55.291]: Info: [wayland] Resolution: 3440x1440
[2026-07-05 19:57:55.291]: Info: [wayland] Resolution: 1920x1080
[2026-07-05 19:57:55.291]: Info: [wayland] Offset: 1920x0
[2026-07-05 19:57:55.291]: Info: [wayland] Logical size: 3440x1440
[2026-07-05 19:57:55.291]: Info: [wayland] Name: DP-1
[2026-07-05 19:57:55.291]: Info: [wayland] Found monitor: Acer Technologies Acer X34
[2026-07-05 19:57:55.291]: Info: [wayland] Offset: 0x0
[2026-07-05 19:57:55.291]: Info: [wayland] Logical size: 1920x1080
[2026-07-05 19:57:55.291]: Info: [wayland] Name: HDMI-A-1
[2026-07-05 19:57:55.291]: Info: [wayland] Found monitor: BNQ BenQ XL2411Z
[2026-07-05 19:57:55.293]: Info: [pipewire] Connected to pipewire version 1.6.7
[2026-07-05 19:57:55.297]: Info: [pipewire] Video format: 12
[2026-07-05 19:57:55.297]: Info: [pipewire] Size: 1920x1080
[2026-07-05 19:57:55.297]: Info: [pipewire] Color primaries: 0
[2026-07-05 19:57:55.297]: Info: [pipewire] Transfer function: 0
[2026-07-05 19:57:55.297]: Info: [pipewire] Framerate (from compositor): 0/1 (variable rate capture)
[2026-07-05 19:57:55.297]: Info: [pipewire] using DMA-BUF buffers
[2026-07-05 19:57:55.298]: Info: [pipewire] Video format: 12
[2026-07-05 19:57:55.298]: Info: [pipewire] Size: 1920x1080
[2026-07-05 19:57:55.298]: Info: [pipewire] Color primaries: 0
[2026-07-05 19:57:55.298]: Info: [pipewire] Transfer function: 0
[2026-07-05 19:57:55.298]: Info: [pipewire] Framerate (from compositor): 0/1 (variable rate capture)
[2026-07-05 19:57:55.298]: Info: [pipewire] using DMA-BUF buffers
[2026-07-05 19:57:55.303]: Info: Creating encoder [h264_vulkan]
[2026-07-05 19:57:55.303]: Info: Color coding: SDR (Rec. 601)
[2026-07-05 19:57:55.303]: Info: Color depth: 8-bit
[2026-07-05 19:57:55.303]: Info: Color range: JPEG
[2026-07-05 19:57:55.348]: Info: Streaming bitrate is 1000000
[2026-07-05 19:57:55.348]: Info: Vulkan encode using GPU: AMD Radeon RX 9060 XT (RADV GFX1200)
[2026-07-05 19:57:55.358]: Info: Creating encoder [hevc_vulkan]
[2026-07-05 19:57:55.358]: Info: Color coding: SDR (Rec. 601)
[2026-07-05 19:57:55.358]: Info: Color depth: 8-bit
[2026-07-05 19:57:55.358]: Info: Color range: JPEG
[2026-07-05 19:57:55.405]: Info: Streaming bitrate is 1000000
[2026-07-05 19:57:55.407]: Info: Vulkan encode using GPU: AMD Radeon RX 9060 XT (RADV GFX1200)
[2026-07-05 19:57:55.419]: Info: Creating encoder [av1_vulkan]
[2026-07-05 19:57:55.419]: Info: Color coding: SDR (Rec. 601)
[2026-07-05 19:57:55.419]: Info: Color depth: 8-bit
[2026-07-05 19:57:55.419]: Info: Color range: JPEG
[2026-07-05 19:57:55.463]: Info: Streaming bitrate is 1000000
[2026-07-05 19:57:55.463]: Info: Vulkan encode using GPU: AMD Radeon RX 9060 XT (RADV GFX1200)
[2026-07-05 19:57:55.473]: Info: Screencasting with XDG portal
[2026-07-05 19:57:55.473]: Info: [pipewire] Requested frame rate [60/1, approx. 60 fps]
[2026-07-05 19:57:55.474]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.482]: Info: [portalgrab] Loaded portal restore token from disk
[2026-07-05 19:57:55.498]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.498]: Info: [wayland] Found interface: zxdg_output_manager_v1(33) version 3
[2026-07-05 19:57:55.498]: Info: [wayland] Found interface: zwp_linux_dmabuf_v1(60) version 5
[2026-07-05 19:57:55.498]: Info: [wayland] Found interface: wl_output(75) version 4
[2026-07-05 19:57:55.498]: Info: [wayland] Found interface: wl_output(77) version 4
[2026-07-05 19:57:55.498]: Info: [wayland] Resolution: 3440x1440
[2026-07-05 19:57:55.498]: Info: [wayland] Resolution: 1920x1080
[2026-07-05 19:57:55.498]: Info: [wayland] Offset: 1920x0
[2026-07-05 19:57:55.498]: Info: [wayland] Logical size: 3440x1440
[2026-07-05 19:57:55.498]: Info: [wayland] Name: DP-1
[2026-07-05 19:57:55.498]: Info: [wayland] Found monitor: Acer Technologies Acer X34
[2026-07-05 19:57:55.498]: Info: [wayland] Offset: 0x0
[2026-07-05 19:57:55.498]: Info: [wayland] Logical size: 1920x1080
[2026-07-05 19:57:55.498]: Info: [wayland] Name: HDMI-A-1
[2026-07-05 19:57:55.498]: Info: [wayland] Found monitor: BNQ BenQ XL2411Z
[2026-07-05 19:57:55.499]: Info: [portalgrab] Using first available stream as no matching stream was found for: ''
[2026-07-05 19:57:55.499]: Info: [pipewire] Streaming display '' offset: 0x0 resolution: 1920x1080
[2026-07-05 19:57:55.499]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.499]: Info: [wayland] Found interface: zxdg_output_manager_v1(33) version 3
[2026-07-05 19:57:55.499]: Info: [wayland] Found interface: zwp_linux_dmabuf_v1(60) version 5
[2026-07-05 19:57:55.499]: Info: [wayland] Found interface: wl_output(75) version 4
[2026-07-05 19:57:55.499]: Info: [wayland] Found interface: wl_output(77) version 4
[2026-07-05 19:57:55.499]: Info: [wayland] Resolution: 3440x1440
[2026-07-05 19:57:55.499]: Info: [wayland] Resolution: 1920x1080
[2026-07-05 19:57:55.499]: Info: [wayland] Offset: 1920x0
[2026-07-05 19:57:55.499]: Info: [wayland] Logical size: 3440x1440
[2026-07-05 19:57:55.499]: Info: [wayland] Name: DP-1
[2026-07-05 19:57:55.499]: Info: [wayland] Found monitor: Acer Technologies Acer X34
[2026-07-05 19:57:55.499]: Info: [wayland] Offset: 0x0
[2026-07-05 19:57:55.499]: Info: [wayland] Logical size: 1920x1080
[2026-07-05 19:57:55.499]: Info: [wayland] Name: HDMI-A-1
[2026-07-05 19:57:55.499]: Info: [wayland] Found monitor: BNQ BenQ XL2411Z
[2026-07-05 19:57:55.502]: Info: [pipewire] Connected to pipewire version 1.6.7
[2026-07-05 19:57:55.507]: Info: [pipewire] Video format: 12
[2026-07-05 19:57:55.507]: Info: [pipewire] Size: 1920x1080
[2026-07-05 19:57:55.507]: Info: [pipewire] Color primaries: 0
[2026-07-05 19:57:55.507]: Info: [pipewire] Transfer function: 0
[2026-07-05 19:57:55.507]: Info: [pipewire] Framerate (from compositor): 0/1 (variable rate capture)
[2026-07-05 19:57:55.507]: Info: [pipewire] using DMA-BUF buffers
[2026-07-05 19:57:55.508]: Info: [pipewire] Video format: 12
[2026-07-05 19:57:55.508]: Info: [pipewire] Size: 1920x1080
[2026-07-05 19:57:55.508]: Info: [pipewire] Color primaries: 0
[2026-07-05 19:57:55.508]: Info: [pipewire] Transfer function: 0
[2026-07-05 19:57:55.508]: Info: [pipewire] Framerate (from compositor): 0/1 (variable rate capture)
[2026-07-05 19:57:55.508]: Info: [pipewire] using DMA-BUF buffers
[2026-07-05 19:57:55.511]: Info: Creating encoder [hevc_vulkan]
[2026-07-05 19:57:55.511]: Info: Color coding: SDR (Rec. 709)
[2026-07-05 19:57:55.511]: Info: Color depth: 10-bit
[2026-07-05 19:57:55.511]: Info: Color range: JPEG
[2026-07-05 19:57:55.561]: Info: Streaming bitrate is 1000000
[2026-07-05 19:57:55.563]: Info: Vulkan encode using GPU: AMD Radeon RX 9060 XT (RADV GFX1200)
[2026-07-05 19:57:55.574]: Info: Creating encoder [av1_vulkan]
[2026-07-05 19:57:55.574]: Info: Color coding: SDR (Rec. 709)
[2026-07-05 19:57:55.574]: Info: Color depth: 10-bit
[2026-07-05 19:57:55.574]: Info: Color range: JPEG
[2026-07-05 19:57:55.616]: Info: Streaming bitrate is 1000000
[2026-07-05 19:57:55.616]: Info: Vulkan encode using GPU: AMD Radeon RX 9060 XT (RADV GFX1200)
[2026-07-05 19:57:55.626]: Info: 
[2026-07-05 19:57:55.626]: Info: // Ignore any errors mentioned above, they are not relevant. //
[2026-07-05 19:57:55.626]: Info: 
[2026-07-05 19:57:55.626]: Info: Found H.264 encoder: h264_vulkan [vulkan]
[2026-07-05 19:57:55.626]: Info: Found HEVC encoder: hevc_vulkan [vulkan]
[2026-07-05 19:57:55.626]: Info: Found AV1 encoder: av1_vulkan [vulkan]
[2026-07-05 19:57:55.629]: Info: New streaming session started [active sessions: 1]
[2026-07-05 19:57:55.631]: Warning: setpriority failed for nice -10: Permission denied
[2026-07-05 19:57:55.631]: Warning: setpriority failed for nice -10: Permission denied
[2026-07-05 19:57:55.631]: Warning: setpriority failed for nice -15: Permission denied
[2026-07-05 19:57:55.631]: Info: CLIENT CONNECTED
[2026-07-05 19:57:55.632]: Info: [portalgrab] Loaded portal restore token from disk
[2026-07-05 19:57:55.632]: Warning: setpriority failed for nice -10: Permission denied
[2026-07-05 19:57:55.649]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.649]: Info: [wayland] Found interface: zxdg_output_manager_v1(33) version 3
[2026-07-05 19:57:55.649]: Info: [wayland] Found interface: zwp_linux_dmabuf_v1(60) version 5
[2026-07-05 19:57:55.649]: Info: [wayland] Found interface: wl_output(75) version 4
[2026-07-05 19:57:55.649]: Info: [wayland] Found interface: wl_output(77) version 4
[2026-07-05 19:57:55.649]: Info: [wayland] Resolution: 3440x1440
[2026-07-05 19:57:55.649]: Info: [wayland] Resolution: 1920x1080
[2026-07-05 19:57:55.649]: Info: [wayland] Offset: 1920x0
[2026-07-05 19:57:55.649]: Info: [wayland] Logical size: 3440x1440
[2026-07-05 19:57:55.649]: Info: [wayland] Name: DP-1
[2026-07-05 19:57:55.649]: Info: [wayland] Found monitor: Acer Technologies Acer X34
[2026-07-05 19:57:55.649]: Info: [wayland] Offset: 0x0
[2026-07-05 19:57:55.649]: Info: [wayland] Logical size: 1920x1080
[2026-07-05 19:57:55.649]: Info: [wayland] Name: HDMI-A-1
[2026-07-05 19:57:55.649]: Info: [wayland] Found monitor: BNQ BenQ XL2411Z
[2026-07-05 19:57:55.651]: Info: [portalgrab] Found stream for display id/name: 'HDMI-A-1' position: 0x0 resolution: 1920x1080
[2026-07-05 19:57:55.651]: Info: [portalgrab] Found stream for display id/name: 'DP-1' position: 1920x0 resolution: 3440x1440
[2026-07-05 19:57:55.652]: Info: Screencasting with XDG portal
[2026-07-05 19:57:55.652]: Info: [pipewire] Requested frame rate [60fps]
[2026-07-05 19:57:55.652]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.661]: Info: [portalgrab] Loaded portal restore token from disk
[2026-07-05 19:57:55.676]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.676]: Info: [wayland] Found interface: zxdg_output_manager_v1(33) version 3
[2026-07-05 19:57:55.676]: Info: [wayland] Found interface: zwp_linux_dmabuf_v1(60) version 5
[2026-07-05 19:57:55.676]: Info: [wayland] Found interface: wl_output(75) version 4
[2026-07-05 19:57:55.676]: Info: [wayland] Found interface: wl_output(77) version 4
[2026-07-05 19:57:55.676]: Info: [wayland] Resolution: 3440x1440
[2026-07-05 19:57:55.676]: Info: [wayland] Resolution: 1920x1080
[2026-07-05 19:57:55.677]: Info: [wayland] Offset: 1920x0
[2026-07-05 19:57:55.677]: Info: [wayland] Logical size: 3440x1440
[2026-07-05 19:57:55.677]: Info: [wayland] Name: DP-1
[2026-07-05 19:57:55.677]: Info: [wayland] Found monitor: Acer Technologies Acer X34
[2026-07-05 19:57:55.677]: Info: [wayland] Offset: 0x0
[2026-07-05 19:57:55.677]: Info: [wayland] Logical size: 1920x1080
[2026-07-05 19:57:55.677]: Info: [wayland] Name: HDMI-A-1
[2026-07-05 19:57:55.677]: Info: [wayland] Found monitor: BNQ BenQ XL2411Z
[2026-07-05 19:57:55.678]: Info: [pipewire] Streaming display 'HDMI-A-1' offset: 0x0 resolution: 1920x1080
[2026-07-05 19:57:55.678]: Info: [wayland] Found display [wayland-0]
[2026-07-05 19:57:55.678]: Info: [wayland] Found interface: zxdg_output_manager_v1(33) version 3
[2026-07-05 19:57:55.678]: Info: [wayland] Found interface: zwp_linux_dmabuf_v1(60) version 5
[2026-07-05 19:57:55.678]: Info: [wayland] Found interface: wl_output(75) version 4
[2026-07-05 19:57:55.678]: Info: [wayland] Found interface: wl_output(77) version 4
[2026-07-05 19:57:55.678]: Info: [wayland] Resolution: 3440x1440
[2026-07-05 19:57:55.678]: Info: [wayland] Resolution: 1920x1080
[2026-07-05 19:57:55.678]: Info: [wayland] Offset: 1920x0
[2026-07-05 19:57:55.678]: Info: [wayland] Logical size: 3440x1440
[2026-07-05 19:57:55.678]: Info: [wayland] Name: DP-1
[2026-07-05 19:57:55.678]: Info: [wayland] Found monitor: Acer Technologies Acer X34
[2026-07-05 19:57:55.678]: Info: [wayland] Offset: 0x0
[2026-07-05 19:57:55.678]: Info: [wayland] Logical size: 1920x1080
[2026-07-05 19:57:55.678]: Info: [wayland] Name: HDMI-A-1
[2026-07-05 19:57:55.678]: Info: [wayland] Found monitor: BNQ BenQ XL2411Z
[2026-07-05 19:57:55.681]: Info: [pipewire] Connected to pipewire version 1.6.7
[2026-07-05 19:57:55.685]: Info: [pipewire] Video format: 12
[2026-07-05 19:57:55.685]: Info: [pipewire] Size: 1920x1080
[2026-07-05 19:57:55.685]: Info: [pipewire] Color primaries: 0
[2026-07-05 19:57:55.685]: Info: [pipewire] Transfer function: 0
[2026-07-05 19:57:55.685]: Info: [pipewire] Framerate (from compositor): 0/1 (variable rate capture)
[2026-07-05 19:57:55.685]: Info: [pipewire] using DMA-BUF buffers
[2026-07-05 19:57:55.686]: Info: [pipewire] Video format: 12
[2026-07-05 19:57:55.686]: Info: [pipewire] Size: 1920x1080
[2026-07-05 19:57:55.686]: Info: [pipewire] Color primaries: 0
[2026-07-05 19:57:55.686]: Info: [pipewire] Transfer function: 0
[2026-07-05 19:57:55.686]: Info: [pipewire] Framerate (from compositor): 0/1 (variable rate capture)
[2026-07-05 19:57:55.686]: Info: [pipewire] using DMA-BUF buffers
[2026-07-05 19:57:55.690]: Info: Creating encoder [hevc_vulkan]
[2026-07-05 19:57:55.690]: Info: Color coding: SDR (Rec. 601)
[2026-07-05 19:57:55.690]: Info: Color depth: 8-bit
[2026-07-05 19:57:55.690]: Info: Color range: MPEG
[2026-07-05 19:57:55.691]: Warning: setpriority failed for nice -15: Permission denied
[2026-07-05 19:57:55.744]: Info: Streaming bitrate is 158988000
[2026-07-05 19:57:55.749]: Info: Vulkan encode using GPU: AMD Radeon RX 9060 XT (RADV GFX1200)
[2026-07-05 19:57:55.749]: Info: Minimum FPS target set to ~30fps (33.3333ms)
[2026-07-05 19:57:56.136]: Info: Setting default sink to: [sink-sunshine-stereo]
[2026-07-05 19:57:56.136]: Info: Found default monitor by name: sink-sunshine-stereo.monitor
[2026-07-05 19:57:56.166]: Warning: setpriority failed for nice -15: Permission denied
[2026-07-05 19:57:56.167]: Warning: setpriority failed for nice -10: Permission denied
[2026-07-05 19:57:56.167]: Info: Opus initialized: 48 kHz, 2 channels, 512 kbps (total), LOWDELAY
[2026-07-05 20:17:59.000]: Info: CLIENT DISCONNECTED
[2026-07-05 20:17:59.004]: Info: Setting default sink to: [alsa_output.pci-0000_2d_00.1.hdmi-stereo]

Online logs

No response

[psyke83]

Try the beta release; there are two recent commits targeting a slightly different issue that may have also resolved this.

#5257
#5346

[Shintaro-66]

Hey psyke83, thanks for the reply. Just so you know, I'm working through this with Claude AI's help, wanted to be upfront that you're effectively talking to both of us. Will patiently await the next pre-release build and keep you posted. Coredumps saved just in case you need them down the track :) *Update: still reproduces on the pre-release build* Tested on sunshine_x86_64.flatpak from the pre-release including #5257 and #5346: Sunshine version: 2026.619.155209commit: 1fce18d Crash reproduced again after normal use, same signature as previously reported: Jul 06 13:25:30 kernel: rtsp::handler[10216]: segfault at 7f1078fc56f1 ip 00007f1078fc56f1 sp 00007f109f7f86b0 error 14 likely on CPU 7 (core 7, socket 0)Jul 06 13:25:30 kernel: Code: Unable to access opcode bytes at 0x7f1078fc56c7.Jul 06 13:25:30 audit: ANOM_ABEND ... comm="rtsp::handler" exe="/app/bin/sunshine" sig=11 res=1 Coredump this time includes a partial stack trace: Stack trace of thread 154:#0 0x00007f1078fc56f1 n/a (n/a + 0x0)#1 0x00007f1078f43798 n/a (n/a + 0x0)#2 0x00007f107900e06f n/a (n/a + 0x0)#3 0x0000559ec49b2be4 n/a (/app/bin/sunshine + 0x511be4) Frame #3 is an offset within the Sunshine binary itself (+0x511be4) rather than an unresolved shared library address, happy to provide the raw coredump if that offset would be useful to symbolize against this build.

…

On Mon, Jul 6, 2026 at 11:24 AM psyke83 ***@***.***> wrote: *psyke83* left a comment (LizardByte/Sunshine#5378) <#5378 (comment)> Try the beta release; there are two recent commits targeting a slightly different issue that may have also resolved this. #5257 <#5257> #5346 <#5346> — Reply to this email directly, view it on GitHub <#5378?email_source=notifications&email_token=CEM3UER2PQ62VKLKCEWSCV35DL5V7A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIOBYHAZTMMBRGU3KM4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2KYZTPN52GK4S7MNWGSY3L#issuecomment-4888360156>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/CEM3UEW6O5L4CIKCS76JY4T5DL5V7AVCNFSNUABFKJSXA33TNF2G64TZHM2DGOBYGAZTQOJQHNEXG43VMU5TIOBRGI2DONZZGY32C5QC> . Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/CEM3UEVCL3VZ6FMP6ASQLL35DL5V7A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIOBYHAZTMMBRGU3KM4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2KUZTPN52GK4S7NFXXG> and Android <https://github.com/notifications/mobile/android/CEM3UEUKZ7GMXZMWEYUVMY35DL5V7A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIOBYHAZTMMBRGU3KM4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2K4ZTPN52GK4S7MFXGI4TPNFSA>. Download it today! You are receiving this because you authored the thread.Message ID: ***@***.***>