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fix(linux): use /tmp for shared memory to prevent AppImage /dev/shm crashes

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Add --disable-dev-shm-usage flag on Linux so Chromium writes shared
memory to /tmp instead of /dev/shm.  AppImage's FUSE mount restricts
child-process access to /dev/shm, causing FATAL zygote/renderer crashes
with 'Unable to access(W_OK|X_OK) /dev/shm' — resulting in a blank/grey
screen.  Also affects .deb and Snap packages on some distros.

Fixes #136
This commit is contained in:
Timothy Jaeryang Baek 2026-04-25 00:32:27 +09:00
parent 8c990befbe
commit 27a3075c3a
1 changed files with 7 additions and 0 deletions
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7
src/main/index.ts
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@ -94,6 +94,13 @@ import { existsSync, writeFileSync, unlinkSync } from 'fs'
if (process.platform === 'linux') {
app.commandLine.appendSwitch('no-sandbox')
// Work around /dev/shm access failures in AppImage and other containerised
// environments. AppImage's FUSE mount can restrict child-process access to
// /dev/shm even when --no-sandbox is set, causing FATAL crashes in the
// Chromium zygote/renderer with "Unable to access(W_OK|X_OK) /dev/shm".
// This flag tells Chromium to use /tmp for shared memory instead (#136).
app.commandLine.appendSwitch('disable-dev-shm-usage')
// Use the native Wayland backend when available instead of XWayland.
// This is required for xdg-desktop-portal features like GlobalShortcuts
// to work (the portal is enabled by default in Chromium 134+ / Electron 33+).