arm-netbook March 2017

arm-netbook@lists.phcomp.co.uk

39 participants
27 discussions

When does the A20 board ship?
by Nick Hardiman 10 Mar '17

10 Mar '17

When does the A20 board ship? I got a little lost following the many hardware and software updates and debates, in various mail threads. Thanks, Nick

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Logging and journaling
by Julie Marchant 09 Mar '17

09 Mar '17

I just want to make sure of something: are the EOMA68-A20 computer cards going to be shipped with logging and journaling disabled (so that the storage isn't constantly being written to)? I'm asking because this is pretty much a necessity for an OS running on NAND or an SD card if you don't want to have to constantly buy new SD cards because the previous one reached its write limit. Ditto for swap, but given the small amount of NAND on the A20 card, I'm sure not having swap is a given anyway. ;) -- Julie Marchant https://onpon4.github.io Protect your emails with GnuPG: https://emailselfdefense.fsf.org

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Re: [Arm-netbook] Logging and journaling
by dumblob 08 Mar '17

08 Mar '17

Hi Hendrik, My experience when I end up swapping to a hard drive is that the whole > system becomes so slow and unresponsive that it mosstsly ignores console > input, and I have no ability to kill things before the OOM does. Often > the best way to get things moving again is a hard reset. And then > watching it repair the filesystems. > well, in Linux 4.10 there is kind of a solution - writeback throttling allowing "skipping parts of the queue" as described in https://lwn.net/Articles/682582/ . Cheers, Jan

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Olimex is making an "open-source" laptop...
by Christopher Havel 07 Mar '17

07 Mar '17

http://hackaday.com/2017/02/05/olimex-announces-their-open-source-laptop/ Rip 'em up, Luke... you know you want to... the quotes wouldn't be in the subject header otherwise... :P

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Laptop PCB schematics
by Internet 03 Mar '17

03 Mar '17

I recently walked through the files on hands.com and found the schematics for the 3 PCBs of the laptop. However, there are multiple versions (PDFs) and I would like to know whether those are the latest. If help is appreciated, I would like to take a look at the schematics. I really want this project to be successful and offering help is probably the best thing I can do ;) Julius Lehmann

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Re: [Arm-netbook] Arm processors
by rohbeck＠yahoo.com 02 Mar '17

02 Mar '17

No, the rumor mill has it that Zen will scale down to 4W/core ------ Original message------From: Luke Kenneth Casson LeightonDate: Thu, Mar 2, 2017 01:21To: rohbeck(a)yahoo.com;Cc: Linux on small ARM machines;Subject:Re: [Arm-netbook] Arm processors ---crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68On Thu, Mar 2, 2017 at 9:14 AM, rohbeck(a)yahoo.com wrote:> Haha, just my thought. My first impulse was "Zen @4W, yay!".0 0https://en.wikipedia.org/wiki/Zen_(microarchitecture) surely you don't mean the zen processors from AMD which have a TDP of65 or 95 watts and have over a thousand pins and a heatsink almostfour times the size of the PCMCIA Cards themselves.... is there any other processor which fits the description of "zen"which is less ambiguous from a google search? do you have a directlink to what you're referring to? thanks rob.

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Re: [Arm-netbook] Arm processors
by rohbeck＠yahoo.com 02 Mar '17

02 Mar '17

Haha, just my thought. My first impulse was "Zen @4W, yay!".0 0 ------ Original message------From: Luke Kenneth Casson LeightonDate: Wed, Mar 1, 2017 20:22To: Linux on small ARM machines;Cc: Subject:Re: [Arm-netbook] Arm processors On Thu, Mar 2, 2017 at 12:49 AM, zap wrote:>>> On 03/01/2017 06:58 PM, John Luke Gibson wrote:>> And, Luke mentioned inquiries being made about using RISC-V in a 100%>> open core board. That's probably a more longterm slightly optimistic>> ah okay fair enough. I was just curious if he planned to reverse> engineer ones with 8gb or more in the later future. reverse-engineering i have come to the conclusion is a total - andcriminal - waste of time and effort. by the time all features are100% stable it's several YEARS down the line. look at how long agothe A64 was released, and the libdram code STILL HAS NOT BEENREVERSE-ENGINEERED. it's 200 lines of code for fuck's sake. NO. read this, zap: https://www.crowdsupply.com/eoma68/micro-desktop/updates/picking-a-processo… should give you some idea of how insane pretty much every singlefabless semiconductor company really is. they're just not payingattention: every single one of them makes at least one compromise,somewhere, and because it's an *integrated* SoC there's absolutelynothing that can be done about it.so we need to be of the order of a MILLION units to be in a positionto influence these people. and if you're going for a million units,you might as well get your own SoC custom-made. anyone knows of an open silicon H.264 and MPEG design that is capableof up to 1080p60 video decode, do let me know.l._______________________________________________arm-netbook mailing list arm-netbook@lists.phcomp.co.ukhttp://lists.phcomp.co.uk/mailman/listinfo/arm-netbookSend large attachments to arm-netbook(a)files.phcomp.co.uk

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arm-netbook March 2017