[Not-Solved] Random freeze and missing journalctl

spacemannn · 2025-09-03 01:55:12

It crashed the most rapidly that I've seen (within 15 minutes of the computer being turned on) twice in a row with libnghttp3 downgraded to 1.10.1-1. Of course, the crashes on this system happen at random intervals though, so I'm not sure how much that really means. I've already developed plenty of superstitions about the cause of these crashes due to random things seeming to resolve the situation.

Whatever the case. Downgrading wasn't the fix for this, at least on my computer. (No meaningful crash logs still. I mostly just posted here to bring this issue up to n=2, and let OP know that he's not alone cuz this issue is seriously maddening, and has wasted me dozens of hours so far this year lol.)

seth · 2025-09-03 08:57:01

spaceman wrote:

I suspect the unity issue mentioned in this thread is also a red herring-- relatedly, I do not use unity

More likely you're off topic, so far the condition seems reliable for the OP

same issue as you earlier this year too... and it started happening again just a few days ago too … KDE Plasma Wayland w/ latest CachyOS kernel

Does this happen w/ the LTS kernel?

I've tried a LOT of stuff too. It's currently still writing directly to disk, but I also tried a very wide many things that I only vaguely remember now, around pstore, ramoops, writing crash info to the boot partition, and a very wide variety of wild stuff I've never had to do in my 15 years on Linux. None of the attempts were successful in the end

The symptoms describe a kernel panic and the only way out of that is https://wiki.archlinux.org/title/Kdump
Except

never managed to get SysReq working either

does that mean "when the system is frozen" or "at all"?

seth · 2025-09-09 18:21:20

@mouton_sanglant, how do you install unity3d?
There's https://bbs.archlinux.org/viewtopic.php … 8#p2260948 which uses unity3d from flathub and apparently libnghttp3 isn't relevant for them.

mouton_sanglant · 2025-09-11 07:46:25

seth wrote:

@mouton_sanglant, how do you install unity3d?
There's https://bbs.archlinux.org/viewtopic.php … 8#p2260948 which uses unity3d from flathub and apparently libnghttp3 isn't relevant for them.

Hello, thanks for letting me know

I've been quite lately because I'm still investigating. After more tests going from libnghttp3 1.11 to 1.10 reduce drastically the occurrences of the issue but does not make it disappear completely. With 1.11 I have a crash after 10-30 minutes maximum, with 1.10 I have to run unity for 3-4 hours before a crash. I also downgraded to 1.9 and I didn't see any changes (crashes after 3-4 hours)

So, recently I recompiled curl without nghttp3 (using quiche instead) and totally removed libnghttp3 from my computer. So far (only 2 days tested) I don't have any crashes, but I was waiting a bit more before posting. If I got new freezes, I'd report and investigate further... glibc is a good candidate: it's the only dependency of libnghttp3, it's required by a lot of packages (but then, it should probably happen more frequently) and there have been some updates in july

Another point is that Unity may trigger "something" in another lib when "something" happened with curl that and depending of the version of nghttp3 the "something" may be more or less frequent

Anyway, I don't know about the flatpak, it's hard to think it doesn't use curl at all and nghttp3 seems to be in Debian since July 2024 (curl 8.0.0-2), so maybe that the debian package of unity-hub just download the required packages in a shady folder since that's the way Unity use to do things for a lot of libs

I'll continue to work for a few days with my custom non-http3 curl and report any crash. Fingers crossed

mouton_sanglant · 2025-09-11 10:27:22

I just had a new crash after around 6 hours with unity open, so nghttp3 is not the culprit... Sorry for the misleading. Downgrading to a version before 1.11 sure mitigates the issue but it won't stop it. It was just harder to trigger

I will try to roll back glibc as there have been an update of the package (glibc (2.41+r48+g5cb575ca9a3d-1 -> 2.41+r65+ge7c419a29575-1)) but sounds like a fuzzy idea, if there was such an issue in glibc it would have been reported by a lot of people

So, no luck on this one and I will probably make a fresh install to check if the issue persists if downgrading glibc is not enough

Anyway, thanks for the guidance you provided, I appreciate a lot

mouton_sanglant · 2025-09-15 16:01:49

seth wrote:

@mouton_sanglant, how do you install unity3d?
There's https://bbs.archlinux.org/viewtopic.php … 8#p2260948 which uses unity3d from flathub and apparently libnghttp3 isn't relevant for them.

Oh sorry I just realized I didn't answered your question. I'm installing Unity from AUR package

I'm back after a few days with a downgraded glibc and I still have crashes at the same pace

Not sure what to do right now, this issue is seriously playing with my nerves

seth · 2025-09-15 19:02:33

https://bbs.archlinux.org/viewtopic.php … 0#p2261920 - but that's too new for your thread.
Might be augmenting the original issue, though?

Arch Linux

#51 2025-09-03 01:55:12

Re: [Not-Solved] Random freeze and missing journalctl

#52 2025-09-03 08:57:01

Re: [Not-Solved] Random freeze and missing journalctl

#53 2025-09-09 18:21:20

Re: [Not-Solved] Random freeze and missing journalctl

#54 2025-09-11 07:46:25

Re: [Not-Solved] Random freeze and missing journalctl

#55 2025-09-11 10:27:22

Re: [Not-Solved] Random freeze and missing journalctl

#56 2025-09-15 16:01:49

Re: [Not-Solved] Random freeze and missing journalctl

#57 2025-09-15 19:02:33

Re: [Not-Solved] Random freeze and missing journalctl

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