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⇱ Cloud Hypervisor 47 Provides Nicer Error Messages - Phoronix


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Cloud Hypervisor 47 Provides Nicer Error Messages

Written by Michael Larabel in Virtualization on 23 July 2025 at 06:26 AM EDT. Add A Comment
Cloud Hypervisor is the open-source, Rust-based VMM started originally by Intel engineers but under the stewardship of the Linux Foundation has evolved into a nice multi-vendor initiative with the likes of Microsoft, Cyberus, Arm, and others all contributing. Even with Intel's cutbacks due to their ongoing corporate restructuring, the Cloud Hypervisor project is thriving as a multi-vendor open-source project for a security-focused hypervisor.

Cloud Hypervisor 47 was released on Tuesday and brings block device error reporting to guests, nicer error messages on exit, and a variety of bug fixes.

The nice error messages on exit for Cloud Hypervisor 47 are much improved over the basic error messages previously printed. Philipp Schuster of Cyberus Technology who worked on the new error messages described the improvement as "a major step forward in UX for both users and developers. It will be clearer where an error originates from and still all debugging information will be preserved."

👁 Cloud Hypervisor error messages


For Cloud Hypervisor 47 downloads and more details, see the project site at CloudHypervisor.org.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.