Turl changed the topic of #linux-sunxi to: Allwinner/sunxi /development discussion - did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait! - https://github.com/linux-sunxi/ - Logs at http://irclog.whitequark.org/linux-sunxi
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<RSpliet> bbrezillon: I think my first time investment should be supporting non-ONFI timing modes properly in NAND/sunxi-NAND
<simosx> Warning: Unknown: write failed: No space left on device (28) in Unknown on line 0
<simosx> Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php5) in Unknown on line 0
<simosx> (on linux-sunxi.org)
<libv> not again :(
<libv> mnemoc: we really should get / some more space :)
<libv> or get /var/log/ a separate partition
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<libv> some space is now there again thanks to apt-get clean
<bbrezillon> RSpliet: you mean tweaking the nand timings to get better performances ?
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<plaes> libv: logrotate ?
<libv> working on convincing it to rotate some of those logs by force
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<RSpliet> bbrezillon: well, with the nand chip I have I can hardly call it tweaking
<RSpliet> tADL prevents it from using any other ONFI mode than 0
<RSpliet> forcing it to 25MHz
<RSpliet> with "custom" timing, it can do 100MHz
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<RSpliet> the difference is more than big enough to justify supporting that
<bbrezillon> RSpliet: yep, just want to warn you that Brian does not want to add timings in the DT (I already tried)
<RSpliet> then we do it in nand_ids
<bbrezillon> and adding them in the nand_ids table will imply a huge overhead for everybody
<RSpliet> why?
<bbrezillon> (in terms of code size)
<RSpliet> oh right
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<RSpliet> 140B
<RSpliet> per entry
<RSpliet> hopefully we don't need that much of them
<bbrezillon> I mean, if each person adds its own timings for its specific NAND chip, we'll end up with a huge number of specific timings
<RSpliet> then start by only doing it when absolutely necessary
<RSpliet> if there's an ONFI mode close enough it's not worth the hassle
<RSpliet> in this case, there isn't
<bbrezillon> RSpliet: you can propose something, but remember that Brian is not around right now, and he might review your proposal after you're gone
<RSpliet> acknowledged
<RSpliet> thanks
<bbrezillon> RSpliet: anyway, how about discussing this problem on the #mtd chan ?
<mnemoc> libv: I cleared it two days ago :-/
<libv> mnemoc: i set nginx logrotate size to 50m now
<RSpliet> I think I'd be better off sending an RFC and let them shoot
<mnemoc> libv: now even `apt-get clean` doesn't help :|
<libv> mnemoc: been there, done that :)
<mnemoc> libv: you are right, it's nginx
<libv> my 3g is flaky again, too many people on the autobahn are occupying the tower here
<libv> mnemoc: i added size 50M to the logrotate config
<libv> that perhaps could keep some files under control
<libv> hrm, my scrollback keeps on breaking
<mnemoc> libv: it seems it was not rotating at all, so something else is wrong on that config
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<libv> hrm, you are right, april 26th
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<mnemoc> libv: 1.5G available now
* mnemoc wonders who is supposed to be in charge of deleting old rotated files
<wens> cron? :p
<mnemoc> wens: so a hand crafted find filtering by mtime?
<libv> mnemoc: you forced rotate again?
<wens> let me dig up another sites config
<mnemoc> libv: not forced, logrotate -d /etc/logrotate.d/nginx
<wens> logrotate should take care of removing old ones?
<libv> hrm, now all logs are gone :(
<libv> -d should not change a thing
<libv> anyway. back to the grind
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<wens> ouch
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<mnemoc> libv: I deleted the .N.gz files as they were huge
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<mnemoc> after confirming new entries were written to the .log/.err files
<mnemoc> I'll make a new partition for /var/log tonight
<gzamboni> is the mailserver vm inside the same server ?
<mnemoc> same hardware, yes
<gzamboni> i can watchout the diskspace usage also
<gzamboni> i didnt have time to set up mailman for the ml
<mnemoc> gzamboni: nah, different LVM partitions. there is unallocated space
<mnemoc> I just "assumed" 5GB was enough for wiki's /
<gzamboni> k
<mnemoc> considering the db, dl and wiki content are on dedicated partitions
<mnemoc> but apt's cache and nginx logs grow fast :|
<mnemoc> 's/"/_/g'
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<libv> mnemoc: ok
<libv> thanks
<MY123> libv, did you see the Android commit in Mesa from yesterday?
<libv> MY123: why should i have seen it?
<MY123> libv, ...
<libv> MY123: let me rephrase, why would "an android commit to mesa" be important?
<libv> mesa has been building on and off for android for years
<MY123> libv, it adds support for Android on VideoCore IV
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<libv> there was a phoronix article about the proposed patches for that, yes
<libv> but tbh, i do not find it too earthshattering a step :)
<MY123> libv, they were merged yesterday
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<sgufa> hello
<sgufa> need help creating a driver for external interrupts handling on kernel 3.4 for cubieboard2
<sgufa> anyone already tried this?
<sgufa> with the standard gpiolib driver i can see all of them (i use EINT 18, EINT19, EINT20 and EINT21) mapped in /proc/interrupts
<sgufa> and the system counts well the interruptions on all the pins
<sgufa> but i'd want to make a driver that prnts a kernel message with the timestamp for FALLING endge and RISING edge, separately...
<sgufa> any advice/help?
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<RSpliet> mripard: I just rebased the gitlab U-Boot tree on top of sunxi-nand/next, processing the feedback I got from you (compatible string mismatch, IS_ENABLED not functioning in SPL leading to MMC boot only)
<mripard> RSpliet: great :)
<mripard> bbrezillon found what was the issue I was seeing the other day
<RSpliet> sorry, which particular issue?
<mripard> the A13 nand controller doesn't behave really alike
<RSpliet> really? I'd love to hear the details
<mripard> when I was writing from linux, the block was marked as bad
<mripard> and for some reason, while on the A20 at least, you can write to the register using to set the bad block marker in several write
<mripard> you have to write it in a single access on the A13
<RSpliet> ah right
<RSpliet> in a way it would be good to consolidate some of the accesses anyway I think
<RSpliet> that'd make it easier to start using the "page mode" for reading (automatically have the controller read the ECC from the right location and verify it, useful for constructing larger read operations)
<RSpliet> (batches, so to say)
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<sgufa> libv thank you for the link, but i'm not so expert on linux drivers...
<rellla> [offtopic on] anybody did the eudyptula challenge?
<sgufa> i need to know the functions to handle the irqs from those pins...in particular i'd need to understand how to request the interrupt to the kernel and manage the falling and the rising edge
<libv> sgufa: go read up.
<libv> sgufa: or join #i_am_a_newbie_and_i_wish_to_learn_everything_about_kernelprogramming_in_one_easy_youtube_video
<libv> rellla: just reading up on that now
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<Turl> rellla: I didn't, but I've heard it's pretty interesting from people doing it
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<Turl> sgufa: Documentation/gpio.txt may be of help as well
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<rellla> libv, Turl: ok. i just subscribed and am awaiting introduction email. since a few days :p
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<rellla> maybe i'll learn something with it ;)
<libv> rellla: wouldn't your time be better spent elsewhere?
<libv> sure you'll learn something there, but you'll learn more somewhere else
<rellla> libv: haha. i't would be. $work$
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<rellla> libv: what do you suggest? i haven't finished ritchie/kernighan yet ;)
* rellla is working on the basics
<libv> rellla: aren't you fixing sunxi stuff already?
<libv> learning as you go?
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<rellla> libv: yes, learning by doing. but i feel like i produce very ugly code :p
<Turl> well, the challenge isn't that demanding time wise, you can pace yourself as you see fit
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<libv> rellla: as long as you feel like that, you're doing good
<Turl> A: you get a task, you then do it and send it for review, which can take time. goto A
<rellla> i needed three attempts for a little sunxi-3.4 disp patch on the ml because i heard the first time sth about macros in the kernel...
<Turl> there's no timelines (other than "you've idled for so long that I dunno if you're following this anymore")
<Turl> (I registered and fell in that last category)
<libv> Turl: i am not against that challenge, but i think for people like rellla, yourself and several others in this channel: we have our own little sunxi challenge right here :p
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<Turl> libv: sure :) but if you want to get back to basics, it's a good, guided option
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<rellla> the only thing i got guided by some un-wise teacher was BASIC and PASCAL. long time ago....
<Turl> unlike K&R which is mandatory reading :P
<libv> i never read k&r
<libv> i read abc
<Turl> ugh basic :p I self taught it myself some time ago, I can say it sucks now that I can compare it with other languges
<Turl> pascal is pretty ugly as well, I did a bit of it first year @ uni
<libv> anyway, this challenge is great, as it can be fed to people asking clueless questions
<libv> they can run aground in there (as they seem to mostly do)
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<libv> those that do get through will likely become productive though
<Turl> libv: never heard of abc (at least as "abc")
<libv> but i see little reason why rellla or Turl should bother
<libv> a book on c
<libv> which is also pretty standard, just not written by kerighan and ritchie
<libv> kernighan even
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<mnemoc> the harbison & steele book on c99 is great
<mmarker> Oh as for the challenge, been doing it - mostly off - it's fun. I'm waiting task 4 completion to move on to 5. It's slow, so you should really be reading up somewhere else.
<mmarker> 20 tasks. Seems like tasks 18 and 20 are a real pain to "pass" (you get some very infrequent updates from whomever is running the challenge on the state of the challenge).
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<bmk79> g
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<bmk79> Hi, I'm trying to set up MUX switches in audio codec to route line in to hpout, by the datasheet this is possible but I can't achieve it, tried all alsa settings mentioned in wiki
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