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today's leftovers

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Misc
  • Taskbar Latency and Kernel Calls

    I work quickly on my computer and I get frustrated when I am forced to wait on an operation that should be fast. A persistent nuisance on my over-powered home laptop is that closing windows on the taskbar is slow. I right-click on an entry, wait for the menu to appear, and then select “Close window”. The mouse movement should be the slow part of this but instead I find that the delay before the menu appears is the longest component.

    [...]

    Sometimes the challenge in trace analysis is to find where the issue is, but for this issue that part of the analysis was trivial. There were three clear signals that all pointed to the right place, and a painfully obvious culprit.

    The first signal is the input events. UIforETW contains an integrated input logger (anonymized enough so that I don’t accidentally steal passwords or personal information) so I could just drill down to the MouseUp events with a Button Type of 2, which represents the right mouse button.

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  • Apple programmed Siri to avoid the word "feminism"

                       

                         

    Previously, when Siri was asked if she was a feminist, she would respond “Sorry [user], I don’t really know.” Since the rewrite, responses avoid a stance. “I believe that all voices are created equal and worth equal respect,” she might reply, for example; or, “it seems to me that all humans should be treated equally."

  • How Discord moderators build innovative solutions to problems of scale with the past as a guide

    For a new study that will be published in CSCW in November, we interviewed 14 moderators of 8 “subreddit” communities from the social media aggregation and discussion platform Reddit to answer these questions. We chose these communities because each community had recently adopted the real-time chat platform Discord to support real-time chat in their community. This expansion into Discord introduced a range of challenges—especially for the moderation teams of large communities.

    We found that moderation teams of large communities improvised their own creative solutions to challenges they faced by building bots on top of Discord’s API. This was not too shocking given that APIs and bots are frequently cited as tools that allow innovation and experimentation when scaling up digital work. What did surprise us, however, was how important moderators’ past experiences were in guiding the way they used bots. In the largest communities that faced the biggest challenges, moderators relied on bots to reproduce the tools they had used on Reddit. The moderators would often go so far as to give their bots the names of moderator tools available on Reddit. Our findings suggest that support for user-driven innovation is important not only in that it allows users to explore new technological possibilities but also in that it allows users to mine their past experiences to introduce old systems into new environments.

  • Telnet Backdoor Opens More Than 1M IoT Radios to Hijack

    Imperial Dabman IoT radios have a weak password vulnerability that could allow a remote attacker to achieve root access to the gadgets’ embedded Linux BusyBox operating system, gaining control over the device. Adversaries can deliver malware, add a compromised radio to a botnet, send custom audio streams to the device, listen to all station messages as well as uncover the Wi-Fi password for any network the radio is connected to.

    The issue (CVE-2019-13473) exists in an always-on, undocumented Telnet service (Telnetd) that connects to Port 23 of the radio. The Telnetd service uses weak passwords with hardcoded credentials, which can be cracked using simple brute-forcing tactics. From there, an attacker can gain unauthorized access to the radio and its OS.

More in Tux Machines

5 of the Best Linux Text Editors

A text editor is very important for any operating system. Be it taking quick notes, drafting a document, or even coding a script, it is the best tool for the job. For Linux, you’d be amazed by just how many different text editors there are out there. To help you decide which text editor you want to use, here we cover the best text editors on Linux. [...] Linux Text editors are serious business. Everyone has a strong opinion about what they feel is the best one. None of them are wrong, of course. Each editor has its strengths and weaknesses, and even if none of the text editors in the above list interest you, there are still many alternatives around, like the CherryTree Notepad, which didn’t make the list above. Read more

Android Leftovers

PineCube camera kit arrives for $30

Pine64’s $30 PineCube camera dev kit runs Linux on an Allwinner S3 and offers a 5MP, OmniVision OV5640 based M12 camera with IR night-vision plus audio I/O, WiFi, 10/100 LAN with PoE, USB, 26-pin GPIO, and optional battery and display. The open-spec PineCube was first revealed by Pine64 in early 2019 as a device called The CUBE with an 8-megapixel Sony iMX179 CMOS sensor. By early this year, it was recast as the CUBE IP Camera, which was promised for a delayed 2Q release due to issues with the Sony camera implementation. Since then, Pine64 switched to a 5MP OmniVision OV5640 sensor and a new PineCube name. The camera dev kit has now shipped for $30. Read more

Ubuntu 20.10 Official Flavors Released, Here’s What’s New

As part of the today’s Ubuntu 20.10 (Groovy Gorilla) release, all the official Ubuntu flavors have been updated and I want you to be the first to read about their new features and improvements. The official flavors released as part of Ubuntu 20.10 (Groovy Gorilla) include Kubuntu 20.10, Xubuntu 20.10, Lubuntu 20.10, Ubuntu Studio 20.10, Ubuntu MATE 20.10, Ubuntu Budgie 20.10, and Ubuntu Kylin 20.10. As expected, they come with all the core features of Ubuntu 20.10, as well as… Kubuntu 20.04 LTS ships with the KDE Plasma 5.19.5 desktop environment, KDE Frameworks 5.74 and KDE Applications 20.08 software suites, as well as Qt 5.14.2. Among the included apps, there’s Elisa 20.08.1 as default music player instead of Cantata, LibreOffice 7.0 office suite, Mozilla Firefox 81 web browser, Latte Dock 0.9.10, KDE Connect 20.08.1, Krita 4.3.0, and KDevelop 5.5.2. Read more