Freeing yourself Working with Linux kernel’s workqueues, I incremented a kref reference count before queuing a work item, in order to make sure that the data structure that it operated on will still be in memory while it runs. Just before returning, the work item’s function decremented this reference count, and as a result, the [...]
Introduction It’s rarely necessary to make an issue of installing and maintaining the GRUB bootloader. However, for reasons explained in a separate post, I wanted to install GRUB 2.12 on an old distribution (Debian 8). So it required some acrobatics. That said, it doesn’t limit the possibility to install new kernels in the future etc. [...]
Introduction My Debian 8-based web server had been running for several years as an OpenVZ container, when the web host told me that containers are phased out, and it’s time to move on to a KVM. This is an opportunity to upgrade to a newer distribution, most of you would say, but if a machine [...]
General Exactly like my previous post from 14 years ago, these are random jots that I took as I set up a QEMU/KVM-based virtual machine on my Linux Mint 19 computer. This time, the purpose was to prepare myself for moving a server from an OpenVZ container to KVM. Other version details, for the record: [...]
Intro This is a super-short post, but I have a feeling it will evolve with time. Using ssh, pasting text with CTRL-V or the mouse’s middle button sometimes resulted in ~0 and ~1 around the pasted text. Super annoying. As it turns out, this is called “bracketed paste” and its a way for the terminal [...]
So what if you need to divide a \subsubsection{} into even lower subsections? LaTeX classes don’t usually support that, because if you need that feature, your document’s structure is wrong. Or so they say. You should have chopped the document with \part{} or \chapter{} at a higher level, and not cut down the sections into [...]