https://mpdesouza.com/ Recent content on Marcos' Blog Hugo -- gohugo.io en Wed, 10 Jul 2024 23:18:00 -0300 https://mpdesouza.com/blog/kbuild-livepatch-selftests/ Wed, 10 Jul 2024 23:18:00 -0300 https://mpdesouza.com/blog/kbuild-livepatch-selftests/ or how moving code around ended up on a Makefile graduation course https://mpdesouza.com/blog/five-commands-to-crash-the-kernel/ Tue, 22 Aug 2023 21:18:21 -0300 https://mpdesouza.com/blog/five-commands-to-crash-the-kernel/ A tcindex tale https://mpdesouza.com/blog/from-zero-to-double-free/ Thu, 09 Mar 2023 23:21:25 -0300 https://mpdesouza.com/blog/from-zero-to-double-free/ … or my personal journey of reading code and triggering behaviors. https://mpdesouza.com/blog/btrfs-for-mere-mortals-inode-allocation/ Mon, 25 Apr 2022 13:30:25 -0300 https://mpdesouza.com/blog/btrfs-for-mere-mortals-inode-allocation/ … or how btrfs manages its inodes when compared to other Linux filesystems, from the inside. https://mpdesouza.com/blog/btrfs-resolving-the-logical-resolve/ Sat, 27 Feb 2021 12:12:52 +0000 https://mpdesouza.com/blog/btrfs-resolving-the-logical-resolve/ logical-resolve inside out https://mpdesouza.com/blog/btrfs-differentiating-bind-mounts-on-subvolumes/ Tue, 16 Feb 2021 00:00:00 +0000 https://mpdesouza.com/blog/btrfs-differentiating-bind-mounts-on-subvolumes/ Explaining how to differentiate bind mounts on btrfs subvolumes https://mpdesouza.com/blog/btrfs-making-send-more-capable/ Thu, 14 May 2020 00:00:00 +0000 https://mpdesouza.com/blog/btrfs-making-send-more-capable/ The tale of fixing a problem of send/receive on btrfs. https://mpdesouza.com/about-me/ Sun, 09 Feb 2020 00:00:00 +0000 https://mpdesouza.com/about-me/ I’m Marcos, a Kernel Livepatch developer at SUSE. I have contributed to interesting open source projects, like Linux Kernel, Linux Testing Project, btrfs-progs, virtme-ng, libvirt, LXC, bubblewrap, supportutils and others. Feel free to reach me out on Mastodon, LinkedIn or by email (me at mpdesouza.com). https://mpdesouza.com/blog/new-btrfs-feature-delete-subvolumes-using-subvolume-ids/ Thu, 23 Jan 2020 00:00:00 +0000 https://mpdesouza.com/blog/new-btrfs-feature-delete-subvolumes-using-subvolume-ids/ Literally, btrfs subvolume delete 2.0 https://mpdesouza.com/blog/kernel-adventures-enabling-vpd-pages-for-usb-storage-devices-in-sysfs/ Fri, 16 Aug 2019 00:00:00 +0000 https://mpdesouza.com/blog/kernel-adventures-enabling-vpd-pages-for-usb-storage-devices-in-sysfs/ USB with VPD on sysfs https://mpdesouza.com/blog/kernel-adventures-are-usb-sticks-rotational-devices/ Wed, 07 Aug 2019 00:00:00 +0000 https://mpdesouza.com/blog/kernel-adventures-are-usb-sticks-rotational-devices/ Understanding why USB devices are usually set as rotational devices on Linux https://mpdesouza.com/blog/no_new_privs-avoiding-privilege-escalation/ Tue, 22 May 2018 00:00:00 +0000 https://mpdesouza.com/blog/no_new_privs-avoiding-privilege-escalation/ … or how to avoid turning your app into an exploit.