garydapogi Posted May 15, 2021 Share Posted May 15, 2021 (edited) I have VirtualBox running Linuxmint in a Linuxmint VM Host inside Unraid. It was working well before, until recently, it failed to boot. Error on screen is : watchdog: BUG: soft lockup - CPU#0 stuck for 23 I tried the following when troubleshooting the issue: 1. Reverted VirtualBox back to previous version: Same Result 2. Switched to Legacy, then, KVM, then Default Virtualization in Virtualbox, also tried Legacy: Same Result 3. Booted the VirtualBox Host bare metal: No issues at all, so I suspect there might be issues with the nesting. I don't remember doing any heavy reconfiguration in Unraid that might have caused the issue, just installed the most popular plugins like; CA, UAD, Fix Common Errors, others. Any ideas, how to troubleshoot and fix the issue? Is it VirtualBox or Unraid Issue? Edited May 16, 2021 by garydapogi additional note Quote Link to comment
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