Write EFAULT unhandled excpetion

[hoveywankenobi]

Running into this EFAULT error when doing a quit and install update running on Raspberry Pi OS Bookworm. It consistently displays this error on every quit and install type update. Debugging leads me to the AppImageUpdater code base but getting stuck on exactly why this is happening.

Executing: /home/Dummy.AppImage with args:
Uncaught Exception:
Error: write EFAULT
at afterWriteDispatched (node:internal/stream_base_commons:161:15)
at writeGeneric (node:internal/stream_base_commons:152:3)
at Socket._writeGeneric (node:net:958:11)
at Socket._write (node:net:970:8)
at writeOrBuffer (node:internal/streams/writable:572:12)
at _write (node:internal/streams/writable:501:10)
at Writable.write (node:internal/streams/writable:510:10)
at execFileSync (node:child_process:938:20)
at func (node:electron/js2c/node_init:2:2559)
at AppImageUpdater.doInstall (/tmp/.mount-oGu7dWw/resources/app.asar/node_modules/electron-updater/out/AppImageUpdater.js:95:42) {
errno: -14,
code: 'EFAULT',
syscall: 'write'
}

[mmaietta]

Just to confirm, what archive are you updating from? AppImage?

If you could provide your electron-builder config, that'd help a bit. I'm not familiar with Raspberry Pi OS though. Last time I used a Raspberry Pi was over a decade ago.

[hoveywankenobi]

@mmaietta - Good call out. Yes, it is an AppImage we are updating from. Here is the electron-builder config, pretty simple config.

"build": {
"appId": "com.org.dummy",
"productName": "org-dummy",
"files": [
"dist-electron",
"dist-react"
],
"extraFiles": [
{
"from": ".env",
"to": "."
}
],
"extraResources": [
"dist-electron/preload.cjs"
],
"icon": "./Icon.png",
"mac": {
"target": "dmg"
},
"linux": {
"target": "AppImage",
"category": "Utility",
"artifactName": "Dummy.${ext}"
},
"win": {
"target": [
"portable",
"msi"
]
},

[hoveywankenobi]

Interestingly enough this issue seems to be isolated to running on RPi CM 4 with eMMC. Trying the same code and same image on an RPI 5 and running the same update process no Javascript EFAULT errors occur on update. The error behavior is consistent across the 10 RPi CM 4 devices I have. Unfortunately I dont have a RPi CM 4 Lite without the eMMC module to test that running on an SD card to see if it is something in the way the storage is handled causing the issue or if it is something else in the RPi CM 4 hardware

[hoveywankenobi]

Update to my last message. I was able to test on a standard RPi 4 Model B board using the exact same image and SD card that I had tested on the RPi 5. The Javascript error is present on the update attempt when running on the RPi 4 however is not present when running the exact same SD card on the RPi 5.

[hoveywankenobi]

I've narrowed it down to this part of the Electron-Updater code:
https://github.com/electron-userland/electron-builder/blob/106640dd42a3db08bfbe3a3a32fe333e93ba5c10/packages/electron-updater/src/AppImageUpdater.ts#L103C5-L106C6

Something specifically happening in this execFileSync that RPi4 doesnt like.