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VM works sometimes! Unable to write to file /var/log/libvirt/qemu/Windows 11.log: No space left on device

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Running into this intermittent issue. The vm works initially, then when I stop it, start it a few times. I stumble upon the following error. 

 

image.png.6047db7f003d9e91535e6a70990713b2.png

 

One would think its space related, but I can create files in the folder where its trying to write. There is plenty of space, removing the log file does not solve the problem. There is plenty of space left on all shares. What really solves the problem is a full reboot.

 

image.thumb.png.b2c189fd91ae5d6323ff553971e9a94b.png

unraid-diagnostics-20240630-2149.zip

Solved by SimonF

  • Community Expert
  • Solution
21 minutes ago, BoKKeR said:

following error. 

What does tne log space show on dash board it is in ram a limited in size.

  • 5 months later...

Same here, year + with no issue but suddenly, I started getting this from the last update, I have plenty of ram and cache as the vm run on the cache drives.

My 128gb/ram is barely 20% used.   It happens to all my VMs, my last fix was to go in and delete the *.log /var/log/libvirt/qemu/<vmname>.log

 

One of them started and haven't attempted to reboot or shut down, my other one still doesn't fire up. 

 

I'm in a middle of parity check so I will wait before I attempt to reboot entire system. 

 

Watching this as well. 

 

Edited by RoTalk
typo

Update:

Read the following:

[7.0.0-beta.1] Error on VM Start - Prereleases - Unraid

 

 

What fixed it for me:
Issue: Users are experiencing VM startup errors due to incompatibilities with certain machine types and QEMU versions in unRAID.
Possible Cause: The machine type specified in the VM configuration (i440fx-7.1 or i440fx-7.2) may not be supported by the version of QEMU/KVM included in your unRAID installation.
Suggested Fixes:
Use an older, compatible machine type., The 7.1, didn't work, I switched to 6.x (6.2) and worked. 
 

  • 6 months later...

I had same error message yesterday after 'force stop' a WIndows 11 VM. I opened the ticket and didn;t receive any support response in 22 hours. WHen I got here, I tried deleting all log files from folder /var/log/libvirt/qemu using the console which resolved the issue for now. WIll monitor the situation to see if it will happen again or not. BY the way, I am using Unraid 7.0.0

  • 3 months later...

Same error ...

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