CRIU

Announcing the Checkpoint/Restore Working Group - kubernetes.io/blog/2026/01/2… #Kubernetes

The rise of AI workloads - especially large language models - introduces new use cases for CRIU. The article (arxiv.org/abs/2502.16631) demonstrates how effectively this can be applied to GPU workloads. #criu #nvidia #LLM

We really appreciate when kernel developers keep #CRIU in mind and go the extra mile to help us be better: lwn.net/Articles/10124… #linux #lwn

CRIU 4.1 "CRISCV" is here with RISC-V, PIDFD support, plus ARM64 PACs, CUDA enhancements, and more! Check out the details: criu.org/Download/criu/… #CRIU #Linux

CRIU 4.0 (CRIUDA) is out! This update introduces groundbreaking functionality for checkpointing and restoring NVIDIA CUDA workloads. Explore the complete changelog and download the latest version at: criu.org/Download/criu/… #CRIU #NVIDIA #CUDA

@confusedqubit @PraveenPerera @pojntfx @mycoliza Regarding CRIU, do you use only the post-copy variant? Have you considered evaluating the pre-copy (pre-dump) approach? We welcome patches at any time!

@__criu__ @PraveenPerera @pojntfx @mycoliza We’re actually using CRIU! Unfortunately in our testing the downtime with CRIU is quite a bit higher (mostly because of userfaultfd) but we have some patches that should fix things

just sshed into two different servers, in different locations, and migrated a running VM back and forth between them without interrupting the guest's serial console output. we live in the future

@confusedqubit @PraveenPerera @pojntfx @mycoliza I hurried to place bets. I should have watched this amazing talk first. They dove really deep into all of this.

@PraveenPerera @confusedqubit @pojntfx @mycoliza I bet I can do that faster with a smaller downtime;)

@confusedqubit @pojntfx @mycoliza Is this possible with containers? Like CRIU but with zero downtime?

x86 shadow stack support has been merged. Huge shoutout to @rppt_ for implementing the kernel API and the CRIU part.

Superfast JVM Startup with Gerrit Grunwald dlvr.it/SrKxP3

We’re happy to announce that registration for LPC 2023 is now open. To register please go to our attend page. To try to prevent the instant sellout, we’ve updated our cancellation policy to no refunds only transfers of registrations. lpc.events/event/17/page/… #LinuxPlumbers

This slightly silly tweet was brought to you by ChatGPT! 🤖 Check out the video for all the deets! 🎥

🔥 Breaking News: 🎉 Exciting Announcement! 🔥 ChatGPT now powered by CRIU! 🚀 Experience uninterrupted conversations and seamless resume functionality. 💬✨ Unleashing the future of AI dialogue! Stay tuned! youtu.be/Rk3nTUfRZmo?t=… #ChatGPT #CRIU #AIRevolution

@ebiken Thanks for that link. According to the video, Microsoft worked with AMD and Nvidia to implement CRIU support. Upstream we are not aware of any work with Nvidia GPUs. We only know about AMDs GPU support: youtu.be/Rk3nTUfRZmo?t=…

Parallels時代に布教しようとしたけど当時の日本では誰にも響かなかった #CRIU が使われているのは感慨深い。Linux Kernel はこの時代にOpenVZ (&Vyatta) で一気に身近になった。(CRIUは Userspaceだけど) criu.org/Main_Page

@laytoun Thanks for the nice article about CRIU. In addition CRIU support also exists in LXC/LXD, Podman, CRI-O and Kubernetes.

I shared my thoughts around CRaC, @__criu__ and the checkpoint/restore feature in the #java world in the article! aboullaite.me/what-the-crac/

@headius @borkdude @marcio_lopes @danielwithmusic If there are any CRIU specific questions please reach out to us via GitHub. Happy to answer any open questions.

@borkdude @marcio_lopes @danielwithmusic @__criu__ Yes, Linux only.

Great chat with folks on the IBM Semeru (OpenJ9 JVM) team about the path forward for using @__criu__ with JRuby! Early POC cuts startup time 6x or 8x. Next steps are to try CRIU in JRuby's container images and put together easy-to-use CRIU recipes for JRuby users. Interested?

🔬 Forensic container analysis In #Kubernetes, it is possible to create a checkpoint of a running container without stopping it and without it knowing @adrian__reber describes how to analyze a checkpoint using tools like checkpointctl, tar, crit and gdb kubernetes.io/blog/2023/03/1…

I've known about @__criu__ since 2015 from LXC days, now I had a chance to use it with @Podman_io and it feels like a witchcraft. Lightweight alternative to Firecracker snapshots. We have a special project with CRIU at @resmoio, to be released in March. Very excited about it!

I published a second article about how to use the Kubernetes "Forensic Container Checkpointing" feature. This time it is how to do forensic container analysis on a (with the help of @__criu__) checkpointed container: kubernetes.io/blog/2023/03/1…

Just heard about `kubectl checkpoint` and how #CRIU allows for checkpoint saves and restores of #Kubernetes workloads. I'd like to have this in the toolbox, and I'm curious on how #cosign signature and verification can be integrated into this flow. #FOSDEM