Tuesday, 2014-08-26

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dosseI just soldered a 3V battery to my minnowboard, but it still doesn't keep the date. Is there another way to do it?06:05
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nashianyone got any info on when minnowboard max will be available at actual retailers?06:30
seaLnenashi: mouser are working there way through the back orders with weekly shipments from circuitco. later on there will be a few other companies selling them from what i have heard06:41
nashihope so06:41
nashithanks06:41
seaLneso there are people with them already06:42
nashiim talking about open purchase.06:42
seaLneyour best bet is probably to just order it from mouser and you'll get it as soon as you reach the top of the queue06:43
nashiill have to look more into it before I order it. right now its just very strong interest06:46
BhaalI haven't done too much testing with mine as of yet, but so far I am more then happy...06:47
BhaalIt's not really much bigger than a Pi, But far far more grunty!06:47
nashiim on an extremely limited income. disabled living in a foster home. my actual disposable income is $50/mo or so06:48
nashiyeah for my task I actually had to shave the pi PCB and remove most of its connectors06:48
nashibut im supremely interested in the final version of my project being x86 compatible06:51
BhaalAhhh, well the Max is a bit bigger...  Its basically the same size as a 2.5" HDD...06:56
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Jazzdudeguys, I'm confused08:33
JazzdudeI'm trying to make my minnowboard max ready for some audio processing work, and for that I'd like to have it running at the highest possible CPU clock08:34
JazzdudeI'm using cpupower to set that, but as it turns out the max clock speed it can be set to is 1GHz08:35
Jazzdudelscpu also lists 1GHz as the maximum speed, even though the CPU is recognized as a 1.33GHz Atom E382508:35
JazzdudeWhat's going on there?08:37
JazzdudeI've also checked that /sys/devices/system/cpu/cpu0/cpufreq/bios_limit does not exist, so it doesn't appear to be a BIOS induced limit08:37
Jazzdudebtw, I'm on arch08:38
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JazzdudeHere's my kernel: 3.16.1-1-ARCH #1 SMP PREEMPT Thu Aug 14 07:40:19 CEST 2014 x86_64 GNU/Linux08:43
seaLnelscpu says the same thing for me with ubuntu and 3.16.1 for what its worth09:08
seaLnewell actually 999.921 but close enough09:09
JazzdudeI wonder if this report is accurate09:15
Jazzdudehttp://ubuntuforums.org/showthread.php?t=120908209:16
Jazzdudethis describes a similar issue that appeared with an old atom cpu09:17
BhaalThis just popped up in syslog on my max while running ddrescue between a drive plugged into the USB3 and a sata drive:11:43
BhaalAug 26 21:37:30 recnode00 kernel: [15382.834844] perf samples too long (2540 > 2500), lowering kernel.perf_event_max_sample_rate to 5000011:43
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ahollerman sysctl.conf (or just use echo). Besides that, a question on lkml might make sense. I assume the perf-authors have implemented that msg because they are interested in feedback12:54
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Jazzdudeis there a boot up key command that resets the BIOS settings of the minnowmax?13:06
JazzdudeI accidentally went headless when playing with the display settings :/13:07
Jazzdudeah, never mind13:09
Jazzdudesomething else went wrong13:09
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RzRhi folks17:12
RzRI see this channel is growing17:13
prpplagueRzR: indeed17:13
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warthog9and I'm home17:47
* warthog9 hugs home17:47
warthog9except that pidge re-adjusted my office chair17:47
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prpplaguehttps://plus.google.com/101339419642360856354/posts/BpFkaEF2Xiw18:24
prpplaguepre-production Flotsam Lure pcb18:24
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JazzdudeThe issue I reported earlier with the E3825 being limited to 1GHz under linux can be circumvented if intel-pstate is disabled in the kernel19:49
JazzdudeI have now 1333MHz as maximum frequency19:49
Jazzdudehowever, I can't seem to get the system to step down to just over 500MHz.19:49
Jazzdudesorry, I can't seem to stop the system stepping down19:50
JazzdudeI would like to run at the highest clock speed all the time19:50
Jazzdudewith intel-pstate disabled the usual clocking control tools don't work19:50
Jazzdudeand I don't know enough about the BIOS parameters to disable speed step there, if that's even possible19:50
JazzdudeAny ideas?19:50
prpplagueJazzdude: i've not run any into any of these issues19:52
prpplagueJazzdude: what os/distro are you using?19:52
Jazzdudearch19:52
prpplagueJazzdude: have you posted your questions to the mailing list?19:52
Jazzdudeand seaLne reported the same with ubuntu19:52
Jazzdudeno, I thought they're better solved interactively in here19:53
JazzdudeI'm not the mailing list enthusiast kind of guy ;)19:53
Jazzdudeprpplague: what does lscpu say on your system?19:53
Jazzdudeand do you have a pstate governor in place?19:53
prpplagueJazzdude: i'd have to look, i normally only test with a build from yocto19:54
prpplagueJazzdude: the yocto builds have all the latest patches and such19:54
Jazzdudesame should be true for arch19:54
prpplagueJazzdude: post the question to the mailing list so i can have some of the intel folks respond19:54
JazzdudeI haven't looked into yocto yet. I found the documentation a little lacking19:55
Jazzdudeok, I will try19:57
Jazzdudedo you happen to have any news on LPE audio with linux? It appears in lspci, but the system doesn't load a driver19:57
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prpplagueJazzdude: warthog9 is going to look into the clock speed reporting20:44
prpplagueJazzdude: i'll be the one looking into the LPE audio, but i won't be doing that until i have the prototypes of the audio lure ready for testing20:44
warthog9Jazzdude: where were you seeing the max freq issue?20:45
warthog9(what file) and what kernel ?20:46
Jazzdudewarthog9: let me copy from the backlog:20:49
Jazzdude[10:34] <Jazzdude> I'm trying to make my minnowboard max ready for some audio processing work, and for that I'd like to have it running at the highest possible CPU clock [10:35] <Jazzdude> I'm using cpupower to set that, but as it turns out the max clock speed it can be set to is 1GHz [10:35] <Jazzdude> lscpu also lists 1GHz as the maximum speed, even though the CPU is recognized as a 1.33GHz Atom E3825 [10:37] <Jazzdude> What'20:49
Jazzdude10:37] <Jazzdude> I've also checked that /sys/devices/system/cpu/cpu0/cpufreq/bios_limit does not exist, so it doesn't appear to be a BIOS induced limit [10:37] <Jazzdude> btw, I'm on arch20:49
Jazzdudewarthog9: and seaLne reported the same behavior on ubuntu20:50
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warthog9kernel version?20:50
Jazzdude[10:43] <Jazzdude> Here's my kernel: 3.16.1-1-ARCH #1 SMP PREEMPT Thu Aug 14 07:40:19 CEST 2014 x86_64 GNU/Linux [11:08] <seaLne> lscpu says the same thing for me with ubuntu and 3.16.1 for what its worth20:50
warthog9ok let me see what my board just booted with20:51
Jazzdudeand it doesn't matter where I look. cpufreq, cpupower, lscpu, /sys/devices/system/cpu, etc20:51
JazzdudeI was going to look into the ACPI tables to see what's reported there20:51
Jazzdudebut I haven't had the time for that yet20:51
warthog9I will be highly annoyed if it's the ACPI tables20:52
Jazzdudeand if I pass "intel_pstate=disable" to the kernel then I get the full speed20:52
warthog9but you lose a bunch of power saving stuff20:52
Jazzdudein my case I wouldn't even mind20:53
JazzdudeI'm trying to use the minnowboard for realtime DSP work20:54
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warthog9Jazzdude: can you do me a favor?21:03
warthog9Jazzdude: cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq21:04
warthog9(anyone else with a board up, I'd appreciate if you had a chance to do the same)(21:04
macmeckwarthog9: i see 400000 on ubuntu with kernel 3.16.121:05
macmeckwarthog9: and 1000000 for ..../cpuinfo_max_freq21:06
warthog9macmeck: the 400,000 for the cur freq?21:06
macmeckwarthog9: nope, 400,000 was for min freq21:06
warthog9interesting21:06
warthog9I'm getting 532,000 for min21:07
warthog9max 1,330,00021:07
warthog9macmeck: you on the latest firmware?21:07
macmeckwarthog9: yes, green dot on the memory chip21:07
warthog9:-/21:08
* warthog9 goes to pull a new board out of a box and see what it does with this usb stick21:08
warthog9step 1: update the firmware ;-)21:10
Jazzdudewarthog9: I'm not on pstate_disable and have also installed the realtime patch. I'll reboot into the other kernel and give you the information21:12
Jazzdude*now21:12
Jazzdudewarthog9: but min and max frequencies were just 400 and 100021:14
Jazzdudeafter pstate disable it became 532 and 133321:14
Jazzdudeoh, and I updated the firmware yesterday21:15
Jazzdudeand haven't checked the clocks before that21:15
macmeckis there a firmware which is more current than the one on the green dotted boards?21:19
prpplaguemacmeck: the green dot just means that it had the latest version of the firmware that does not have the nvram brick issue21:20
macmeckprpplague: thanks21:21
prpplaguenp21:21
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warthog9Jazzdude: ok I see the problem21:34
warthog9well maybe21:34
warthog9yeah21:35
warthog9let me punt this up21:35
warthog9Jazzdude: https://bugzilla.yoctoproject.org/show_bug.cgi?id=666321:42
yoctiBug 6663: normal, Undecided, ---, dvhart, NEW , P-states reports incorrect max frequency21:42
warthog9just opened that21:42
Jazzdudewarthog9: I'm using the default arch kernel though, not the yocto built21:47
Jazzdudebut that probably doesn't matter21:48
Jazzdudeah, never mind21:49
JazzdudeI misread21:49
warthog9Jazzdude: I don't think it matters21:49
warthog9the yocto kernel is straight up stock kernel21:49
Jazzdudethank you for looking into that!21:50
Jazzdudeit's good to know someone is aware of it and there will likely be a fix soon21:50
dvhartwell... it's close21:51
dvhartbut everything in standard/base is either stock or a backport21:51
warthog9dvhart: I made you a bug21:53
dvhartyup, I saw that21:54
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