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Blog posts tagged
"Bug-fix support"

Lidia Luna Puerta
17 July 2026

Tracing a memory leak bug in PID 1 and contributing an upstream fix: a Linux support story

Security and Compliance Ubuntu tech blog

How Canonical Support helped a global retail organization trace the cause for an unusual memory leak originating in PID 1. By investigating the issue across three separate system layers our team was able to identify the source and fast-track a patch. ...

Lidia Luna Puerta
1 June 2026

How Canonical Support solves hard Linux performance bugs  – even in 12-year old code

Ubuntu Ubuntu tech blog

A 12-year-old bug in libnss-db caused getent enumeration to slow to a crawl – and showed how far expert support can go when a customer brings the right evidence and the right question. ...

Lidia Luna Puerta
12 February 2026

When an upstream change broke smartcard FIPS authentication – and how we fixed it

Ubuntu Ubuntu tech blog

This is the story of how Canonical’s Support team provided bug-fix support: we tracked down an upstream change in OpenSC that inadvertently broke FIPS compatibility, coordinated with upstream developers across distributions, and delivered both a hotfix and a proper universal solution. ...