VM freezes irregularly

Tomorrow I will change back many of the bios tweaks I set to see if its still stable. PL2 12000, disabled IME, C-State limit to C3. I'll keep C-States enabled but remove the limit of C3.
 
Valantur said:
2 days and 9 hours of uptime since I installed the 5.19.4 edge kernel... rock solid.
Click to expand...
This is definitely positive. My Ubuntu VM was able to stay up for around 5 days previously on the 5.15.x Proxmox kernel so if everyone who's running the 5.19.x kernels all get to a week without freezing, we'll have a pretty good sample size on reliability.

I'd be interested to know what's changed in the kernel between 5.15.x to 5.19.x to improve stability - Fabian might be able to help us here...?
 
gyrex said:
I'd be interested to know what's changed in the kernel between 5.15.x to 5.19.x to improve stability - Fabian might be able to help us here...?
Click to expand...
Well.. We might have to dig into the Linux Kernel changelogs for that as the pve-edge-kernel maintainer is not the Fabian in our thread they just happen to share the same name.
My guess is simply that some added hardware drivers or microcodes that improved stability.

Btw, does anybody get this log in PVE's syslog after changing to5.19.4 kernel?

Code: 
i2c i2c-6: sendbytes: NAK bailout.
 
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Holger Huo said:
Well.. We might have to dig into the Linux Kernel changelogs for that as the pve-edge-kernel maintainer is not the Fabian in our thread they just happen to share the same name.
My guess is simply that some added hardware drivers or microcodes that improved stability.

Btw, does anybody get this log in PVE's syslog after changing to5.19.4 kernel?

Code: 
i2c i2c-6: sendbytes: NAK bailout.
Click to expand...
Hi, I did not get that log so far (my uptime: 1 day 6 hours without issues).
Please note that before kernel 5.19.4 install, I also tried to install intel-microcode package (as this is not installed by proxmox during installation). The intel-microcode package provides the latest microcode available for intel n5105 cpu and friends (processor family code: JSL) . I hoped this could help but crashes still occurred.
Now let's see how it goes with this new kernel....
 
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fgerardi said:
Hi, I did not get that log so far (my uptime: 1 day 6 hours without issues).
Please note that before kernel 5.19.4 install, I also tried to install intel-microcode package (as this is not installed by proxmox during installation). The intel-microcode package provides the latest microcode available for intel n5105 cpu and friends (processor family code: JSL) . I hoped this could help but crashed still occurred.
Now let's see hot it goes with this new kernel....
Click to expand...
I'm confused. Were you running the 5.19.4 kernel on the host when the VM froze?
 
I am keeping kernel 5.15.39-4 on a NUC11ATKC4 to check in parallel if that version has somehow fixed the freezing.

Immagine 2022-08-29 190011.jpg
Two VMs running using Ubuntu Server 22.04 I will be reporting back.
 
I'm not sure if this is a disapointing news...
My OpenWRT vm crashes (and auto reboots) every 5 hours after installing pve-edge-kernel v5.19.4... I haven't caught up anything and I'm waiting for the next crash.. I'm running the following OpenWRT version and the weird thing is that, this VM NEVER crashed before..
1661825470833.png
I'll follow up the latest 5.19.5 kernel to see if it fixes anything. One thing to mention is that I am compiling the kernel MYSELF (although i dont think there should be problems with that), but if everyone else's edge-kernel is running smoothly, i guess there's not much to worry about.
 
Valantur said:
I've been running my host with Proxmox Edge kernel 5.19.4 for almost two days with no crashes, whereas with any other kernel my OPNSense and Home Assistant VMs would crash every 4-5 hours. Here's the link if you want to try for yourselves:
https://github.com/fabianishere/pve-edge-kernel
Click to expand...
Thanks a million for this. Was having the same problem on a N5105 system with I210 nics. Since installing 5.19.4, the system has been stable.
 
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I have a Debian 11 VM that was not working for more than 5hours...
After updating the kernel to 5.15.39-4-pve, I got a stability of 8 days, until the light went out in my house and it turned off.

Now i have it on at 16 hours.
 
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rRobbie said:
I am keeping kernel 5.15.39-4 on a NUC11ATKC4 to check in parallel if that version has somehow fixed the freezing.

View attachment 40496
Two VMs running using Ubuntu Server 22.04 I will be reporting back.
Click to expand...

A brief update.

After 2 days and 10 hours running the official 5.15.39.4, one of the four testing VMs froze tonight.
Capture.PNGThe other three VMs are running.

I am going to wait few more days to see the overall behavior before upgrading to 5.19.4 and hope it improves.
 
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