Talks
Here’s a list of my talks, presentations, and interviews.
QubesOS: Security Through Isolation
DevConf 2025
Qubes OS compartmentalizes a desktop into isolated virtual machines, so that one compromise does not take the whole system with it.
OpenSSH Supply-Chain Attack
The three-year supply-chain attack (CVE-2024-3094) on XZ Utils that came very close to backdooring SSH servers worldwide, and what it says about trust in open source.
Linux File Systems
Operating Systems course at the Faculty of Informatics, Masaryk University
Linux file system internals for an operating systems course: VFS abstractions, the I/O stack, crash consistency, and what SMR and Persistent Memory mean for file system design.
Interview: The ext4 filesystem is still relevant
DevConf 2014
In this 2014 interview with Linux EXPRES at DevConf.cz, I discuss my work developing the ext4 filesystem at Red Hat and why it continues to evolve rather than being replaced by newer alternatives.
Advanced Features of File System and Storage
DevConf 2014
In this talk I discussed advanced features recently implemented in Linux local file systems, including checksumming, snapshotting, and support for emerging storage technologies.
System Storage Manager
LSF/MM summit 2013
System Storage Manager provides a unified command-line interface for managing multiple Linux storage technologies including LVM, btrfs, encrypted volumes, and mdraid.
Local file systems update
DevConf 2013
This 2013 talk examined the evolution of Linux's major local file systems - XFS, ext4, and Btrfs - as they adapted to modern scalability, reliability, and storage technology challenges.
Btrfs: Design, Implementation and the Current Status
DevConf 2012
Technical presentation examining the design and implementation of the Btrfs file system in the Linux kernel.
Performance evaluation of Linux Discard Support
DevConf 2011
Technical presentation examining Linux discard/TRIM support for SSDs and thinly provisioned storage, with benchmark results.