Kernel General
Desiderato Chouinard
2 days ago, I upgrade to linux 5.15.2 from 5.14.16.
Tonight, my system was semi-hanged and I had to push the button reset.
In the journal, I see many kernel errors during the semi-hang.
Anyone else have seen this issue ?
This is a memory allocation error when ext4 tries to sync a mount, typically because it's unmounted for the shutdown.
The problem is *likely* ahead of this.
Please post the entire journal for a boot w/ hanging shutdown (and please don't copy it out of the pager. redirect it into a file or pastebin service)
There's no context (no preceeding erros), for 25 minutes you keep getting crashes in (predominantly) kmem_cache_alloc on attempted file access.
Reproducible? Possibly OOM? You don't have swap, do you?
Yes, no needing swap and no specific context, no errors or OOM conditions preceding the kernel errors.
Just before rebooting, I ran the free command to check memory and I didn't see nothing shocking.
If this issue is happening again, what can I check ?
For removing the old kernel I woult have fist removed the IJulia package from the 1.2 Julia before removing Julia. As you have already removed Julia 1.2, try from Julia 1.3 to remove the IJulia package (] rm IJulia) before adding it.
It executes apt-mark hold which will prevent the kernel from being updated by apt. Since you have 5.6 installed already, there is little reason to hold the kernel. Personally, I would try the proxmox kernel (will stay on 5.4) and if it is stable, remove the debian kernels.
Sure. But I consider the proxmox kernel to better tested than the Debian Backports kernel. Not only is it the Ubuntu LTS kernel but it is also tested against the Debian userland in Proxmox. So, it is very good for OMV.
I don't understand what problem you are having. The headers don't have anything to do with grub. The kernel does. And the other problem is that some plugins depend on the linux-headers-amd64 package which will only point to the latest kernel. So, you will have issues trying to run the 5.7 kernel with the latest headers. You should have marked the headers and kernel packages on hold. Otherwise, the best option is to probably use the proxmox 5.4 kernel and remove the debian kernels altogether.
right i was looing to headers and not image for linux kernel, for some reason i have only 5.9 headers and not image, i'm still using kernel 5.7 because it works with veeam backup agent, which are the main advantages in using proxmox kernele against debian?
The proxmox kernel is the Ubuntu 20.04 LTS kernel. In my opinion this is more tested than the Debian backports kernels. Also proxmox uses the Debian 10 userland. So, the proxmox kernel is a very good fit for OMV. I run it on almost all of my OMV systems.
I'm going to restore disk image before nvidia. Nvidia was supposed to fix driver to work with 5.9 but hasn't yet. Do you know what nvidia driver works with proxmox? I know kernel 5.4 was available but getting rid of the nvidia drivers was not working. Lots of errors. Going to right to proxmox and try it.
I think this happened because the newer kernel is using cgroups v2 by default whereas the CRI I had (containerd I guess older version?) did not support it. Anyways, once I did that and rebooted my system it worked! Hope this helps someone (or me in the future).
BTW, Jan, I forgot to ask what was the usecase that pushed you to create the golang kernel? Was that an ability to have a sandbox Golang code snippet execution? I know that most usecases would be Machine Learning/Data Science-related (like Python or R kernels) and Go is not that popular for those purposes afaik.
Btw, I finished implementing widgets for GoNB, and in the process I created some detailed documentation on how to communicate from the front-end (browser) to the kernel . Most is for the Go kernel, but the same idea could be used for other kernels/languages I suppose.
so I try to remove the proxmox kernel and found this on google "apt-get purge pve-kernel* pve-headers* but now the bootlist is empty.
I was running linux-image-5.4.174-2-pve, is there someway to install it back ? I think now when I reboot the server it will never bootup again.
I dont known, the webinterface was not working, and when I logon to the console via ILO I noticed many errors and no way to logon, the errors was overwriting the input, was not able to enter credentials.
you can close the topic, I have re-installed the system, I was never able to get ZFS installed again, with the other kernel SSH was not working. I think the HP microserver Gen8 is not supported but anyhow, I have reinstalled it. Thanks for the advice.
I have the same problem. Installed PVE kernel, reboot. Ohh, updates... broken. According to the error (PVE firmware can't update, cuz wanna owerwrite existing files, so it just stops). Removed non-pve kernels, maybe it helps... No luck. No updates. Cant install packages, cuz there is a broken package. Could not purge or reinstall, etc...
Are you talking about the kernels or isos? The kernels shouldn't matter. The ISOs have sizes listed in the docs. If you click the wiki link in the last menu of the kernel plugin, it takes you to the wiki entry for the kernel plugin that does list the sizes. And I hate cancel buttons. They require too much weird logic to support a user hitting cancel at any particular step in the process.
Hi. I am a Linux gamer. There are many kernels to choose from in the system, but which one is the best for gaming? I have the standard one that installs by default. I would like to get the best performance and ensure the system runs well under load.
I have been testing my self, from Sched and Bore etc to find a reason to change. At this point, its close to red car, blue car. It comes down from game to game, and your hw, and what you want to atchive. But if I was you, i would stay on the default. Some times, you had a bit better MS, some times, a few fps more on different instances. Then it also could be oposit with worse performance. But not anything you would notice on your screen tbh So the default one is CachyKing approved
I am backporting a driver called GTP from 4.9 Linux kernel to 3.18 version. I fixed the errors in the source code of the driver and compiled the kernel successfully. I am also using Ubuntu Server 14.04 to test the kernel with that driver. (There is also a netlink library (libgtpnl) to control the driver.I do modprobe gtp and there is no problem. I use the library to control some functions of the driver, and there is no problem. However, strangely, when I enable forwarding: (echo 1 > /proc/sys/net/ipv4/ip_forward) The kernel somehow haults. I am also unable to do many network commands (ifconfig, iproute, etc)
There are some answers related to kernel taint as the driver seems have no license. But it has, I dont why the kernel didnt realize it.I couldn't find how the driver uses dev_disable_lro. I couldnt move through. Any help to identify my problem would be appreciated. Thanks
I have long been interested in Zorin OS, and I really loved the DE experience, but the apt package manager is always extremely out of date, it drives me insane. I don't want to have node 14.18.0 on the experimental channel when node 16.0.0 is already out there, and very stable from what I've tried.
Stability is tested by a large number of people across a large variety of machines, compared against bug reports and user experience.
Zorin OS 16 uses the 5.11.0-37 kernel. The latest kernel is around 5.15. For some people, this may be a boon, as the later kernels have additions for the newest hardware. But for many, it has also been problematic. With regressions, removals and just straight up errors... The Later kernels have been almost more trouble than they are worth.
Only looking at "higher number" is not the best metric to gauge the performance of a package or kernel. You need to look at the change-log.
I am certainly seeing a lot more kernel blamed problems with 5.11 (Zorin 16) compared to 5.4 (Zorin 15) being reported here on the forum. I guess some of the problems may be attributed to new users, posting problems here since the Z16 launch, but I don't think that is the full explainaton. It has put me off updating to Z16 from Z15.3 where life is good, stable and for the most part problem free.
Do you want told me I can try back to back from 16 to 15.3 ultimate?
future500510 42.3 KB
Do you think it will better working?
Linux is for old machines then Zorin 16 Pro is for computers in future or past future? Very good question.
So third times i need new installation Zorin with again configuration my drivers and all things? I faster kill my SSD
All I can say from my observations here (also commented by @Aravisian at one time), is that Z16 with 5.11. kernel seems more problematic than Z15 was, and still is. You will have to find out for yourself if Z15.3 behaves nicer on your machine.
The installation linux what I saw everything what you want or try in future is important to check if this solution will be working on your machine PC.
That why many open source code open-free and non-free for diffrents peripheral device.
I don't have problem with installation Zorin 16 Pro because I go with guide on this forum topic Fresh Installation Zorin Pro.
You asking why Zorin 16 have more users on forum asking support?
That is simple more people have old machines and price for new PC is expensive.
Zorin GUI is near Windows distribution also very popular on youtube channels.
Zorin good for Gaming. People are tired crashing blue screen Windows 10 updates. Windows 11 only for computers with TMP 2.0