>software support is fantastic.
Unreliable USB: https://github.com/raspberrypi/linux/issues/3259
Unreliable Wi-Fi:
* https://github.com/raspberrypi/linux/issues/7092
* https://github.com/raspberrypi/linux/issues/7111
* https://github.com/raspberrypi/linux/issues/7272
I don't understand why many say that RPi software/firmware support is 'fantastic'. Maybe it used to be in the beginning compared to other chips and boards, but right now it's a bit above average: they ignore many things which is out of their control/can't debug and fix (as in Wi-Fi chip firmware).
In The Orange Pi 6 Plusraspberrypi
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C2012–2026
raspberrypi / linux
linux
Kernel source tree for Raspberry Pi-provided kernel builds. Issues unrelated to the linux kernel should be posted on the community forum at https://forums.raspberrypi.com/
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Kernel source tree for Raspberry Pi-provided kernel builds. Issues unrelated to the linux kernel should be posted on the community forum at https://forums.raspberrypi.com/
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| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2012 | 2012-01-01 00:00:00 UTC | 2013-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2013 | 2013-01-01 00:00:00 UTC | 2014-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2014 | 2014-01-01 00:00:00 UTC | 2015-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2015 | 2015-01-01 00:00:00 UTC | 2016-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 4 | 0 | 4 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 5 | 0 | 5 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 4 | 0 | 4 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 7 | 2 | 5 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 3 | 0 | 3 |
| 2026 (partial) | 2026-01-01 00:00:00 UTC | 2027-01-01 00:00:00 UTC | 2 | 0 | 2 |
From the project README
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Read the project’s introduction
Linux kernel
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use make htmldocs or
make pdfdocs. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
Build status for rpi-6.12.y:
Build status for rpi-6.18.y:
Read the full README on GitHubWhat Hacker News says
2 sourcesThis is only very tangentially related, but I got flashbacks to a time where we had dozens of edge/IoT raspberry pi devices with completely unupgradeable kernels with a bug that would make the whole USB stack shut down after "roughly a week" (7-9 days) of uptime. Once it got shut down, the only way to fix it was to do a full restart, and, at the time, we couldn't really be restarting those devices (not even at night).
This means that every single device would seemingly randomly completely break: touchscreen, keyboard, modems, you name it. Everything broke. And since the modem was part of it, we would lose access to the device — very hard to solve because maintenance teams were sometimes hours (& flights!) away.
It seemed to happen at random, and it was very hard to trace it down because we were also gearing up for an absolutely massive (h
Read the rest
undreds of devices, and then a couple of months later, thousands) launch, and had pretty much every conceivable issue thrown at us, from faulty USB hubs, broken modems (which would also kill the USB hub if they pulled too much power), and I'm sure I've forgotten a bunch of other issues.
Plus, since the problem took a week to manifest, we couldn't really iterate on fixes quickly - after deploying a "potential fix", we'd have to wait a whole week to actually see if it worked. I can vividly remember the joy I had when I managed to get the issue to consistently happen only in the span of 2 hours instead of a week. I had no idea _why_, but at least I could now get serviceable feedback loops.
Eventually, after trying to mess with every variable we could, and isolating this specific issue from the other ones, we somehow figured out that the issue was indeed a bug in the kernel, or at least in one of its drivers: https://github.com/raspberrypi/linux/issues/5088 . We had many serial ports and a pattern of opening and closing them which triggered the issue. Upgrading the kernel was impossible due to a specific vendor lock-in, and we had to fix live devices and ship hundreds of them in less than a month.
In the end, we managed to build several layers on top of this unpatchable ever-growing USB-incapacitating bug: (i) we changed our serial port access patterns to significantly reduce the frequency of crashes; (ii) we adjusted boot parameters to make it much harder to trigger (aka "throw more memory at the memory leak"); (iii) we built a system that proactively detected the issue and triggered a USB reset in a very controlled fashion (this would sometimes kill the network of the device for a while, but we had no choice!); (iv) if, for some reason, all else failed, a watchdog would still reboot the system (but we really _really_ _reaaaally_ didn't want this to happen).
In a way, even though these issues suck, it's when we are faced with them that we really grow. We need to grab our whole troubleshooting arsenal, do things that would otherwise feel "wrong" or "inelegant", and push through the issues. Just thinking back to that period, I'm engulfed by a mix of gratitude for how much I learned, and an uneasy sense of dread (what if next time I won't be able to figure it out)?