NodeBB crashes when uploading images

[Teresa-Hale-DHQ]

Log output:

2021-05-06T01:18:54.643Z [4567/23252] - info: NodeBB Ready
2021-05-06T01:18:54.646Z [4567/23252] - info: Enabling 'trust proxy'
2021-05-06T01:18:54.651Z [4567/23252] - info: NodeBB is now listening on: 0.0.0.0:4567
[cluster] Child Process (23252) has exited (code: null, signal: SIGILL)
[cluster] Spinning up another process...

As you can see, strangely, there isn't even an error.

I'm using the latest version of NodeBB

[Teresa-Hale-DHQ]

@teresa-hale-dhq Update: I attached a debugger to the Node process; here's the output from that.

(gdb) attach 472
Attaching to process 472
[New LWP 473]
[New LWP 474]
[New LWP 475]
[New LWP 476]
[New LWP 477]
[New LWP 478]
[New LWP 483]
[New LWP 484]
[New LWP 485]
[New LWP 486]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f408e687a47 in epoll_wait (epfd=epfd@entry=14, events=events@entry=0x7fff52341980, maxevents=maxevents@entry=1024,
    timeout=timeout@entry=500) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
30      ../sysdeps/unix/sysv/linux/epoll_wait.c: No such file or directory.
(gdb) r
The program being debugged has been started already.
Start it from the beginning? (y or n) n
Program not restarted.
(gdb) c
Continuing.

Thread 1 "node" received signal SIGILL, Illegal instruction.
0x00007f3de6dc1f1f in ?? () from /home/forum/node_modules/sharp/build/Release/../../vendor/8.10.6/lib/libvips-cpp.so.42
(gdb) quit

Idk if this'll be of use, but putting it here in case it is.

[PitaJ]

What platform are you on? What version of Node? Did you recently upgrade? Maybe try npm rebuild

[Teresa-Hale-DHQ]

@pitaj I'm on Ubuntu 18.04, using Node.js version 14.16.1.
I tried npm rebuild and restarting NodeBB, but it still crashes whenever I try to upload an image.

[PitaJ]

Oh actually I think you need to do npm rebuild sharp. Try that and share the output from it.

[Teresa-Hale-DHQ]

@pitaj

root@rockfic:/home/forum# npm rebuild sharp

> [email protected] install /home/forum/node_modules/sharp
> (node install/libvips && node install/dll-copy && prebuild-install) || (node-gyp rebuild && node install/dll-copy)

sharp: Downloading https://github.com/lovell/sharp-libvips/releases/download/v8.10.6/libvips-8.10.6-linux-x64.tar.br
[email protected] /home/forum/node_modules/sharp

Even still, whenever I try uploading an image, I get this:

[cluster] Child Process (24423) has exited (code: null, signal: SIGILL)
[cluster] Spinning up another process...

[PitaJ]

Okay so just to confirm this is caused by an error in sharp, try creating a file called test-sharp.js in your nodebb directory with the following contents:

'use strict';

const fs = require('fs/promises');
const sharp = require('sharp');

async function run() {
	const input = await fs.readFile('public/logo.png');
	await sharp(input)
		.resize({ width: 100 })
		.toFile('build/public/logo.png');
}

run().then(() => {}, err => setTimeout(() => { throw err; }, 0));

Then run it like node test-sharp.js. It should create the file build/public/logo.png. Check the exit code with echo $?.