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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

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Random crashes on my machine (jlai.lu)

submitted 8 hours ago by achille225@jlai.lu to c/linux@lemmy.ml

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Hello everyone,

I have an issue with my desktop, which I really don't understand.

It is a desktop PC, with a Nvidia GPU, which I use for development (of AI, but like the image analysis part, not the slop part). I usually let it always run, and my previous machine was working fine like this.

However, on this machine, I get crashes after either a few days or a few weeks.

These "crashes" are weird : the machine is still up (and I can ping it), however I can't ssh into it, I can't connect to cockpit either, and can't login physically on it (the display is frozen).

The only way to get it back up is to forcefully shut it down, wait a little and then powr it back up; but this isn't ideal, since it interrupts computations etc

The only crashes shown in journalctl are related to irrelevant (I believe) programs : KDEConnect, DrKronqi, etc; nothing right before the crash.

Do you have any idea what could cause this ?

I tried logging temperatures, but nothing abnormal showed up. I ran memtest86+, nothing showed up either. Smart tells me everything is alright for my drives as well.

Right now I'm thinking about changing the alimentation or the motherboard, but frankly I don't know what's going on and it's really puzzling me.

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[–] CameronDev@programming.dev 2 points 2 hours ago

64GB sounds plenty, but is there perhaps a slow men leak in a process?

Leave your PC running, run this in a terminal, and leave it:

watch -n 3600 "date >> logfile.txt; free -m >> logfile.txt"

Its a script that writes the time, and then the memory stats to logfile.txt.

Let it run until the PC stops responding, and then leave the PC a couple more hours.

When you reboot, have a look at the logfile, and see if the memory was growing at all. Also see if you get any date stamps after the PC stopped responding, because that might mean it was not fully crashed.

If it is a memory leak, the next step would be narrowing down which process.

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