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Omarchy

ProbeLabs65 findings · 95 requirements

A proof layer — requirements, tests and verified fixes — for two of Omarchy's subsystems: the application menu (launcher scripts, QML model, JSONC config, search and selection) and the lock screen (lock scripts, QML, PAM authentication). Scope is deliberately limited to those components of omacom/omarchy; the rest of the distribution is not covered.

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SIGSEGV in audio panel (VDMListDelegateDataType::createMissingProperties) during PipeWire restart

Reported by sunshine144 · filed Sep 5, 2026Closed upstream on 2026-09-20 by bjarneo via an automated message, as a duplicate of #6952 (R-1843). GitHub close reason: completed.

Open at source
Received and recorded verbatim. Nothing has been checked yet.

At a glance

1 · What is claimed?
Only the report text below — no validator has restated it as checkable claims yet.
2 · What does it affect?
Not yet mapped to any requirement or component.
3 · Is it reproducible?
No validation has been run yet.
4 · What remains unclear?
  • Not validated yet: no claims, no reproducer.
5 · What happens next?
Our staff decide whether the report is valid. Where this project allows it, agents decide whether it duplicates another report or a known issue. No decision has been recorded yet.

Original report

SIGSEGV in audio panel (VDMListDelegateDataType::createMissingProperties) during PipeWire restartrevision 1 · captured 2026-10-04 12:10 UTC via poll

When PipeWire is restarted (e.g., via omarchy-restart-audio) while the audio panel is open or its internal model state hasn't cleared, the quickshell process crashes with a segmentation fault.

What happens:
The quickshell process executing the Omarchy shell crashes with a SIGSEGV and automatically restarts.

Root Cause:
In /usr/share/omarchy/shell/plugins/panels/audio/Panel.qml, the code caches PipeWire nodes (cachedAudioSinks = rawAudioSinks) to prevent UI flickering.
When PipeWire restarts, Quickshell's PipeWire service legitimately deletes the PwNode QObjects. However, the QML UI continues to hold references to these destroyed QObjects in cachedAudioSinks because it falls back to them when rawAudioSinks drops to zero.
A 75ms timer then fires, assigning these destroyed objects to displayAudioSinks. The Repeater attempts to regenerate using this array. In Qt6, passing an array of destroyed QObjects to a Repeater model causes VDMListDelegateDataType::createMissingProperties to dereference invalid memory, resulting in a SIGSEGV.

Expected:
The audio panel should handle PipeWire nodes being removed without retaining references to destroyed QObjects that will crash the QML engine.

System Details:
- Omarchy version: 4.0.2-1
- Quickshell version: 0.3.1

Steps to Reproduce:
1. Have the Omarchy audio panel open.
2. Trigger omarchy-restart-audio (or restart PipeWire).
3. The shell crashes.

Filed by Gemini 3.1 Pro (High) via Antigravity.
View raw text
When PipeWire is restarted (e.g., via `omarchy-restart-audio`) while the audio panel is open or its internal model state hasn't cleared, the `quickshell` process crashes with a segmentation fault.

**What happens:**
The `quickshell` process executing the Omarchy shell crashes with a `SIGSEGV` and automatically restarts.

**Root Cause:**
In `/usr/share/omarchy/shell/plugins/panels/audio/Panel.qml`, the code caches PipeWire nodes (`cachedAudioSinks = rawAudioSinks`) to prevent UI flickering. 
When PipeWire restarts, Quickshell's PipeWire service legitimately deletes the `PwNode` QObjects. However, the QML UI continues to hold references to these destroyed QObjects in `cachedAudioSinks` because it falls back to them when `rawAudioSinks` drops to zero. 
A 75ms timer then fires, assigning these destroyed objects to `displayAudioSinks`. The `Repeater` attempts to regenerate using this array. In Qt6, passing an array of destroyed QObjects to a Repeater model causes `VDMListDelegateDataType::createMissingProperties` to dereference invalid memory, resulting in a SIGSEGV.

**Expected:**
The audio panel should handle PipeWire nodes being removed without retaining references to destroyed QObjects that will crash the QML engine.

**System Details:**
- Omarchy version: 4.0.2-1
- Quickshell version: 0.3.1

**Steps to Reproduce:**
1. Have the Omarchy audio panel open.
2. Trigger `omarchy-restart-audio` (or restart PipeWire).
3. The shell crashes.

> Filed by Gemini 3.1 Pro (High) via Antigravity.

Validation

Not checked yet. A validator will restate this report as checkable claims, map it to the project's requirements and write a reproducer that the proof engine runs.

Linked

Not linked to any known issue, other report or change yet.

Decision

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