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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

openSUSE Tumbleweed vs. Leap 15.2 vs. Jump Alpha Benchmarks

Following the recent alpha debut of the openSUSE Jump distribution for testing that is working to synchronize SUSE Linux Enterprise with openSUSE Leap, there was an inquiry made about the performance of it. So for addressing that premium member's question, here are some benchmarks carried out recently of the latest openSUSE Leap 15.2 against the openSUSE Jump in its early state against the rolling-release openSUSE Tumbleweed. Read more

today's howtos

Ubuntu Touch OTA-13 Released With More Phones Supported, UI Improvements

The UBports community has announced the release of Ubuntu Touch OTA-13 as their newest over-the-air update to this Ubuntu mobile operating system. With Ubuntu Touch OTA-13 now supported are the Sony Xperia X/XZ/Performance and OnePlus 3/3T devices. This is on top of around one dozen other devices from the LG Nexus 4/5 to earlier OnePlus devices, FairPhone 2, Nexus 7, and different Meizu and BQ devices from the early days of the Ubuntu Touch effort at Canonical. Read more Direct: Ubuntu Touch OTA-13 release Also: Ubuntu Weekly Newsletter Issue 649

Announcement of the passing of Jari Fredriksson

Some know that Jari's mirror broke a few weeks ago and we've been trying
to reach him. I am sorry to announce that Jari Fredriksson was a great
supporter of the project running an sa-update mirror, helping with our
masscheck program, testing releases, and just generally being a great
member of our community.

On behalf of the entire project, I'd like to extend our condolences to
him and his family.  He will be missed.

If anyone wishes to send a note of condolences it can be done through
Jouni, his employer. http://www.jounivirtanenconsulting.com/contact/

Sincerely,

Kevin A. McGrail
Read more