Kata Containers: Diagnosing ’Container Not Started’ Errors

from DevOps & Cloud Interview Questions and Answers - Part 1 · host devopsinterviewcloud

When eBPF-based security profiles silently block syscalls in a Kata Containers runtime, tracking down 'container not started' errors requires knowing exactly where to look. You'll learn: How Kata Containers' nested virtualization layer changes where failures actually surface versus standard runc Why eBPF security profiles (Seccomp, BPF-LSM) can silently drop syscalls that the guest kernel needs at startup Using dmesg, kata-runtime logs, and bpftool prog tracelog to correlate guest-side panics with host-side policy denials Common gotchas: mismatched kernel versions between host and guest image causing profile incompatibilities How to audit and iterate on allow-lists without disabling your security profile entirely Keywords: Kata Containers debugging, eBPF security profiles, container runtime errors, Seccomp troubleshooting, SRE interview prep 🎧 Listen, then go deeper — DevOps & Cloud interview-prep ebooks at DevOpsInterview.Cloud

What this episode covers

When eBPF-based security profiles silently block syscalls in a Kata Containers runtime, tracking down 'container not started' errors requires knowing exactly where to look.You'll learn:How Kata Containers' nested virtualization layer changes where failures actually surface versus standard runcWhy eBPF security profiles (Seccomp, BPF-LSM) can silently drop syscalls that the guest kernel needs at startupUsing dmesg, kata-runtime logs, and bpftool prog tracelog to correlate guest-side panics with host-side policy denialsCommon gotchas: mismatched kernel versions between host and guest image causing profile incompatibilitiesHow to audit and iterate on allow-lists without disabling your security profile entirelyKeywords: Kata Containers debugging, eBPF security profiles, container runtime errors, Seccomp troubleshooting, SRE interview prep🎧 Listen, then go deeper — DevOps & Cloud interview-prep ebooks at DevOpsInterview.Cloud

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Kata Containers: Diagnosing ’Container Not Started’ Errors

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This episode was published on August 26, 2025.

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