#1 Global Leader in Data Resilience

Hyper-V Crashing or Rebooting During Backup Due to Anti-Virus

KB ID: 4337
Product: Veeam Backup & Replication
Published: 2022-07-19
Last Modified: 2023-08-23
mailbox
Get weekly article updates
By subscribing, you are agreeing to have your personal information managed in accordance with the terms of Veeam's Privacy Notice.

Cheers for trusting us with the spot in your mailbox!

Now you’re less likely to miss what’s been brewing in our knowledge base with this weekly digest

error icon

Oops! Something went wrong.

Please, try again later.

Challenge

During the backup of a Hyper-V VM, the Hyper-V host may crash (BSOD) with a bug check 34 or 0x22.

Solution

Veeam Support has seen similar cases to this from time to time, they are generally considered rare, and when they do occur, the underlying cause requires extensive investigation. It is not uncommon for an investigation to eventually find that antivirus software installed on the Hyper-V host was the root cause. Microsoft itself has published a list of recommended antivirus exclusions for Hyper-V hosts.

Always ensure any installed antivirus software is properly up to date. However, if the crashes have started recently, consider downgrading to see if the issue dissipates. 

When contacting Veeam Support about an issue relating to a Hyper-V host crashing, please provide a crash dump (.dmp) from the host(s) that experienced the crash.

 

 

RecentlyJune/July 2022, Veeam Support has seen an uptick in cases where Hyper-V hosts crash or reboot when a backup job is running. Through investigation with customers facing these issues, a significant number of them have reported that they were able to isolate the problem to the presence of CrowdStrike Falcon Sensor 6.38.x installed on their Hyper-V host.

The following link and quote from the Release Notes were provided by several customers who were advised by CrowdStrike Support that the crashes are related to an issue fixed in 6.39.

If you are facing a situation where a Hyper-V host is crashing or rebooting during the backup of a VM, and CrowdStrike Falcon Sensor is installed on that Hyper-V host, please get in touch with CrowdStrike Support.

Customers facing this issue have reported that they were able to fully mitigate the Hyper-V host crashes by either upgrading to 6.39 or downgrading to 6.37. Other customers reported that they opted to remove CrowdStrike entirely from their Hyper-V hosts. This article does not intend to provide advice in either direction; it only serves to raise awareness of the situation.

To submit feedback regarding this article, please click this link: Send Article Feedback
To report a typo on this page, highlight the typo with your mouse and press CTRL + Enter.

Spelling error in text

This site is protected by hCaptcha and its Privacy Policy and Terms of Service apply except as noted in our Privacy Policy.
Thank you!

Thank you!

Your feedback has been received and will be reviewed.

Oops! Something went wrong.

Please, try again later.

You have selected too large block!

Please try select less.

KB Feedback/Suggestion

This form is only for KB Feedback/Suggestions, if you need help with the software open a support case

By submitting, you are agreeing to have your personal information managed in accordance with the terms of Veeam's Privacy Notice.
This site is protected by hCaptcha and its Privacy Policy and Terms of Service apply except as noted in our Privacy Policy.
Verify your email to continue your product download
We've sent a verification code to:
  • Incorrect verification code. Please try again.
An email with a verification code was just sent to
Didn't receive the code? Click to resend in sec
Didn't receive the code? Click to resend
Thank you!

Thank you!

Your feedback has been received and will be reviewed.

error icon

Oops! Something went wrong.

Please, try again later.