/srv/irclogs.ubuntu.com/2010/04/11/#ubuntu-arm.txt

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nosse1Are you familiar with bugs like this on omap: [ 2361.163635] BUG: soft lockup - CPU#0 stuck for 61s! [dpkg:1737]18:51
persianosse1: I've seen that error reported for all sorts of architectures.  Unfortunately, I don't know the cause.  I'm fairly certain it's not OMAP-specific though.19:03
nosse1persia, thanks. I'd just wanted to check if it was something familiar on omap.19:04
Martynwhat's the error?19:04
Martynsorry, just popped in, so I don't have the backscroll19:04
nosse1[ 2361.163635] BUG: soft lockup - CPU#0 stuck for 61s! [dpkg:1737]19:05
rsalvetinosse1: which kernel are you urins?19:05
persiaBUG: soft lockup - CPU#0 stuck for 61s!19:05
rsalveti*using19:05
rsalvetinosse1: the TI one?19:05
nosse1I'm running the TI-one yes, the "official" lucid ti-omap won't work for AM351719:05
nosse1It could seem to me that the lockup occurs on heavy disk activity. And since I'm running NFS root, it could perhaps be related to that?19:06
rsalveticould be, but hard to say without more information from the kernel19:09
nosse1Yeah, I know. Except the kernel doesn't tell any more19:09
nosse1Another thing: I have X up and running (yeah!).19:10
armin76Martyn: did i ask you if you had sound running on the tegra?19:10
nosse1What apt target do you guys use when testing? "ubuntu-netbook" has unknown packages which doesn't seem to be available yet19:11
nosse1Do you have a all-in-one target which pulls down the gnome desktop?19:11
persiaThat'd be ubuntu-desktop, but ubuntu-netbook is significantly lighter-weight in terms of requirements.19:12
persiaWhich bits of ubuntu-netbook aren't installing?19:12
nosse1persia, hold on19:12
nosse1persia, cancel that. It seems all packages are available now19:15
persiaThere's sometimes architecture skew with the mix of arch:all and arch:any binaries (because the arch:all binaries are built on i386), but it doesn't typically last that long, unless something broke (which means it needs fixing).19:16
persiaIf you get a persistent issue with metapackage installation, it may well be a bug needing fixing.19:16
persia(but I'm glad to hear this isn't the case right now)19:16
persiaThat said, according to https://launchpad.net/builders there are 19 packages that are out-of-date on armel (waiting to build).19:17
nosse1Are there any commercial developers here in this forum? (perhaps not on sundays)19:19
nosse1I'm uncertain if we should register our products on the ARM machine registry or not19:19
nosse1and I'd like to know what other mfgs are doing19:20
Martynarmin76 : Since I'm very server-oriented, I haven't even tried to get sound working on the tegra19:21
Martynarmin76 : I've even disabled video, to get the memory back19:21
persianosse1: Do you need a special MachineID for your hardware?  If so, you'll want one.  If not, there's little point.19:21
Martynnosse1 : I'm a 'comercial developer'19:22
armin76Martyn: nod :)19:22
nosse1persia, I'm not sure i need one. You use machineid whenever the kernel isn't aware of the HW its running on, right? If that is true, I guess we don't need one19:23
persiaI don't really understand when it's needed, but I think it's part of kernel compilation: if you can run a multi-board kernel, I think you don't need it.19:24
nosse1Alas, it seems NFS root is the culprit of the kernel crashes19:40
* nosse1 wish that the AM3517 had a SATA disk connector...19:41
persiaAnything designed to have disks should have such a controller, but MTD rules when it comes to local data.19:49
nosse1persia, do you mainly use USB or SD MTDs?20:16
persiaI've never used an MTD that wasn't on-board.20:16
persiaI'm fairly certain that neither USB nor SD allows one to actually use the MTD drivers.20:17
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nosse1persia, you need a fairly large mtd if you want to do development on it. E.g. for building packages (since Ubuntu builds natively). Do you know how it's done in the build farm?20:29
hrwmorning20:29
nosse1(I'm somewhat bothered here having to reboot my target whenever I do a larger apt install)20:30
persianosse1: I'll say that an MTD is inappropriate for doing development: for that you want spinning disks.20:31
hrwyes20:31
persiaI believe the build farm uses SATA-over-USB but I may be mistaken.20:31
hrwconnecting 1.5TB disk over usb is easy20:31
persiaThat's probably overkill :)20:31
nosse1Ah.20:31
hrwpersia: I have such one connected to sheevaplug20:32
DanaGI'd rather use an esata-bearing sheeva. =รพ20:32
hrwor rather had as I have some problems with sheeva so disk is connected to desktop20:32
nosse1Because we need to make one ourselves unless we somehow can build packages natively on our large build farm20:32
hrwDanaG: I bought sheevaplug year ago when it was new stuff20:32
hrwnosse1: connect sata-over-usb and pray that TI ehci will work20:33
nosse1So it's about praying for one or the other. One=NFS, Other=ehci.... NFS crashed once more *sigh*20:34
persiaehci is probably more stable than NFS in most ways.20:34
hrwnosse1: 16GB sd is other option20:34
persiaI remember that NFS was discussed for the LP build farm and rejected, but I don't remember why.20:34
persiahrw: If you like buying new SD cards :)  (but 4-8G is enough for most packages)20:35
hrwnosse1: quite cheap, easy to buy and omap3 can drive 3 mmc/sd slots20:35
hrwI have here device with omap3 and 3 sd slots. mmc0=rootfs, mmc1=userfs, mmc2=sdio/wifi/bt20:35
nosse1How's wear levelling handled on SD? Is it the SD firmware, or is it up to the host SW?20:35
hrwSD itself20:36
nosse1...and from what I've heard it spans from excellent to horrible20:36
hrwyes20:37
nosse1Reliable brands: SanDisk, Kingston ?20:37
* nosse1 needs to shop SD cards tomorrow20:38
hrwsandisk20:38
hrwavoid kingston rather20:38
DanaGhmm, where can you get a cheap sdio wifi?20:39
DanaGI wanna' try one in my host computer's sdhc controller.20:40
hrwDanaG: no idea20:40
hrwDanaG: here I have marvel8686 in two devices - both on sdio20:40
hrwand 3rd one has it on spi bus20:40
DanaGSomething weird with the Ricoh reader in Windows: it assumes the whole disk is one partition (even if it's not true)... and then can't comprehend what partition type.20:40
hrwcommon20:41
DanaGI end up having to use "rw-everything" (awesome tool, by the way) to essentially "setpci" as I would have to on Linux... and then it reattaches to the SDHC controller instead of the Ricoh controller.20:41
hrwbrand new cards sometimes do not have partition table20:41
DanaGhttp://intr.overt.org/blog/?p=5920:41
DanaGThe card I was testing with, was my beagle (two partitions).20:42
DanaGOnce I did that, it then showed partitions properly.20:43
DanaGI'm curious to try some SDIO card with the thing.20:43
hrwDanaG: nice20:43
DanaGI did the writing value on the mmc controller function, specifically.20:45
hrwbut - is each sd controller also sdio capable?20:56
nosse1hrw, After skimming the RM from TI, it seems so20:59
hrwnosse1: I know that i.mx31, omap3, pxa2xx are sdio capable. no idea about others21:00
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