this post was submitted on 15 Aug 2023
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101
When I shutdown my computer last night, it gave me this error message. It seems to be working fine but should I be considered? (sopuli.xyz)
submitted 10 months ago* (last edited 10 months ago) by [email protected] to c/[email protected]
52 comments fedilink hide all child comments
 

I'm not sure what fixed it because I tried multiple things yesterday, but it shutdown normally last night.

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[–] [email protected] 48 points 10 months ago (4 children)

Attempting to kill init means that something tried to kill PID 1. That's... abnormal outside of a shutdown. But it can be normal during shutdown. So uhh... yeah: if it continues to be a problem then it needs to be reported and fixed by your distribution. What distribution are you using?

I see kernel panics at shutdown most often on Arch-based distros after updating system packages.

It sucks when it happens during shutdown but it's typically not going to cause other problems... except perhaps not automatically booting if you wanted to reboot instead of shutdown.

[–] [email protected] 9 points 10 months ago (1 children)

I'm using the XFCE edition of Linux Mint. The Kernel updated yesterday morning, could that have something to do with it?

[–] [email protected] 19 points 10 months ago (1 children)

A kernel update, if it's done right, shouldn't cause a panic. But not every distro does updates right.

If you know the old version and the new version then it might be useful to reach out to the Mint community and see if they're aware of issues like that.

https://linuxmint.com/getinvolved.php -> forums or chat might be fruitful to you

[–] [email protected] 3 points 10 months ago

I don't know what the previous version was but I'll still post about it to the forums. Thanks.

[–] [email protected] 5 points 10 months ago

on Arch-based distros after updating system packages

So basically every shutdown lol

[–] [email protected] 4 points 10 months ago

This dude kernel panics

[–] [email protected] 4 points 10 months ago (1 children)

I see kernel panics at shutdown most often on Arch-based distros after updating system packages.

When I tried Arch, upgrading kernel would delete the kernel modules of the running kernel

somewhat unimpressive upgrade process.

[–] [email protected] 5 points 10 months ago

As with everything in Arch, there's a setting for that.

[–] [email protected] 18 points 10 months ago (1 children)

I'd reinstall libpcre, looks like it's gotten broken?

The kernel panic should be a direct result of shutdown (which I guess at this point is init/pid1) not finding its dependency and killing itself.

[–] [email protected] 3 points 10 months ago (2 children)

How would I reinstall it? I tried to look it up but I couldn't find anything.

[–] [email protected] 8 points 10 months ago (2 children)

apt install --reinstall PKG_NAME

Is the command to reinstall a package, replace PKG_NAME with the name of the package you want to reinstall.

You should use apt instead of apt-get. It is newer, more user friendly and supposedly handles dependency resolution better.

[–] [email protected] 2 points 10 months ago

I've already done that but thanks anyways.

[–] [email protected] 1 points 10 months ago

This command (could have) saved me lots of times, had I known it earlier. So far it has saved me once.

[–] [email protected] 2 points 10 months ago* (last edited 10 months ago) (1 children)

sudo apt-get install --reinstall

https://duckduckgo.com/?q=apt+reinstall+package&t=fpas&ia=qa&iax=qa

Not sure how you searched but I assume you didn't use or know apt? How do you install packages in the first place? Through GUI or Terminal?

EDIT: I assume you use the Linux Mint GUI package manager. I can't find how to do this too, would need to search more detailed but I don't have enough time for this now, need sleep, don't have enough sleep.

[–] [email protected] 1 points 10 months ago (1 children)

I know about and have used apt, I install pretty much everything through the terminal. What I searched for was "how to reinstall libpcre" because I thought that it required a specific method or something due to the fact that it's a system library.

Anyways, it reinstalled it but I wont know if it fixed the issue until tonight.

[–] [email protected] 1 points 10 months ago

Sometimes we think a little bit too complicated

[–] [email protected] 12 points 10 months ago (1 children)

Yes this is a kernel panic which occurs when something goes terribly wrong inside the system. This could be anything from broken software to defective hardware. You should observe if this happens regurlarly.

[–] [email protected] 6 points 10 months ago (1 children)

Ok but is there anything notable from this error message, like anything specific that I should be checking out for?

[–] [email protected] 5 points 10 months ago (1 children)

First line of your picture is a hint for a software issue. I would just google that.

[–] [email protected] 1 points 10 months ago (2 children)

I tried seaching it online but the only I could find (that I understood how to use it) was to run "sudo ldconfig" which didn't seem to day anything. I have no idea if that actually fixed the problem or not but if it didn't, do you have any other solutions?

[–] [email protected] 2 points 10 months ago (1 children)

ldconfig sets up links and caches for loading library code. That might be an issue if your install is broken between updates. You can use ldd to check if code can be looked up. ldd /usr/lib/x86-64-linux-gnu/libpcre2-8.so.0 should show no errors. Likewise for ldd /usr/sbin/init.

(Your paths may vary)

[–] [email protected] 2 points 10 months ago (2 children)

Ok, so Synaptic Package Manager states that it's installed in the exact location you say that it's supposed to be in but ldd states "No such file or directory". What's going on here?

[–] [email protected] 4 points 10 months ago (1 children)

You have a typo: It should be x86_64, not x86-64

[–] [email protected] 1 points 10 months ago

Oops, anyways it seems to have been found this time. I did reinstall it already but I wont know if it fixed the issue until tonight.

[–] [email protected] 1 points 10 months ago (1 children)

Did it help though? Same error or is the system shutting down fine now?

[–] [email protected] 1 points 10 months ago (1 children)

I wont know until tonight.

[–] [email protected] 2 points 10 months ago (3 children)

What prevents you from shutting it down right now?!

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[–] [email protected] 10 points 10 months ago (2 children)

You could look at the package that's mentioned in the first line in Synaptic. The error message says it can't find a file. Fürst thing is do is check if that fike is actually there.

[–] [email protected] 9 points 10 months ago (1 children)

I might be totally wrong, but libpcre sounds like the regex library used by perl. Maybe his perl packages are broken?

[–] [email protected] 3 points 10 months ago

Almost. It's a C library that mimics Perl's regular expression facilities. Fairly common dependency for any number of packages.

[–] [email protected] 1 points 10 months ago

Apt says it's installed. Someone said something about reinstalling it but I couldn't find anything online about reinstalling.

[–] [email protected] 10 points 10 months ago (2 children)

weird that it tried to load libpcre on shutdown too. have you got a wifi sniffer installed? nmap? metasploit?

[–] [email protected] 4 points 10 months ago

I have no idea what those are, unless Linux Mint (at least the XFCE edition) has one of those installed by default, I'm pretty sure I don't have any of those installed.

[–] [email protected] 1 points 10 months ago

Why is that weird? My shutdown is also linked against libpcre2.

[–] [email protected] 8 points 10 months ago (1 children)

Your libpcre seems broken. Reinstall the package that contains this file.

[–] [email protected] 2 points 10 months ago

I did that yesterday and it might have fixed it because I didn't have the issue but I did try multiple things yesterday, so I'm not sure.

[–] [email protected] 6 points 10 months ago (1 children)

As others said, check if it is a single case or if it repeats at the next shutdowns. Anyway, the main question this brings to mind is: do you have a good backup of your system / data ?

[–] [email protected] 1 points 10 months ago

I don't have a backup of the system because if something happens, I'm switching distros. But I do have both an external hard drive and Pcloud for cloud storage for some other things like game save files.

[–] [email protected] 5 points 10 months ago* (last edited 10 months ago) (3 children)

Personally I'd be worried there's a transient disk issue. I'd ensure my backups are good and files aren't being silently corrupted. I assume you're on an NVME, they tend to fail instantly, but sometimes you'll get transient file errors beforehand (like not being able to open a system library). Look at something like debsums to start with maybe.

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[–] [email protected] 5 points 10 months ago* (last edited 10 months ago) (2 children)

Could also be an SEU

[–] [email protected] 3 points 10 months ago (1 children)

That's pretty specific, but I guess it's possible.

[–] [email protected] 2 points 10 months ago* (last edited 10 months ago)

Iirc it's 1 bit per 500mb per week for your every day ram.

There's this famous case where a speedrunner playing Mario had such a bit flip and affected his play time.

[–] [email protected] 2 points 10 months ago

Colloquially referred to as “cosmic rays”.

[–] [email protected] 1 points 10 months ago

In addition to the other things mentioned, check the health of your drive. This could be a symptom of corruption.

[–] [email protected] 1 points 10 months ago (1 children)

You seem to have removed libpcre2 library. Try to reinstall it using your package manager.

[–] [email protected] 1 points 10 months ago

Synaptic Package Manager states that there are several versions of libpcre2 installed, which one should I try to reinstall?

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