os850 on xo-1.5 -- looks good
Was able to run a whole bunch of Activities -- did not notice any new failures to launch. Multimedia respectable; YouTube watchable @ 240p. Thanks for a good job, mikus ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New 10.1.2 build os304 for XO-1 and XO-1.5
--- On Wed, 8/4/10, James Cameron qu...@laptop.org wrote: From: James Cameron qu...@laptop.org Subject: Re: New 10.1.2 build os304 for XO-1 and XO-1.5 To: Yioryos Asprobounitis mavrot...@yahoo.com Cc: Fedora OLPC fedora-olpc-l...@redhat.com, Chris Ball c...@laptop.org, Devel devel@lists.laptop.org Date: Wednesday, August 4, 2010, 6:40 PM On Wed, Aug 04, 2010 at 07:56:48AM -0700, Yioryos Asprobounitis wrote: I olpc-updated my XO-1.5 from 303 to 304 and left it to go to sleep [...] froze in the shutdown screen I had commented out varlog in os303 /etc/fstab but on reboot nothing was at the logs and alt-boot did not work. Any other way to get persistent logs for os305 :-) The olpc-update created a fresh root which had /var/log in tmpfs. Look in the alternate root for the /var/log that belonged to os303. /versions/run/ That's the first I looked. However messages is empty and lastlog and faillog although sizable appear with no text content. How do you see their content? Another issue is the does not appear to be any /boot-alt folder, so I can not boot back to os303 and check from there, unless if I do it manually. Bootpart has /bootpart/boot-versions/version but OFW does not see that as boot-alt. How do you boot-alt in XO-1.5 builds? ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New 10.1.2 build os304 for XO-1 and XO-1.5
On Wed, Aug 04, 2010 at 11:40:53PM -0700, Yioryos Asprobounitis wrote: However messages is empty and lastlog and faillog although sizable appear with no text content. How do you see their content? lastlog and faillog are not relevant. messages is. That it is empty is unfortunate. It isn't empty for me. The sequence I used was to install a build, remove the /var/log from /etc/fstab, reboot, see /var/log/messages is non-zero size, reboot, see messages file still. Another issue is the does not appear to be any /boot-alt folder, so I can not boot back to os303 and check from there, unless if I do it manually. That sounds like a problem. -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: os850 on xo-1.5 -- looks good
os850? Where this comes from? --- On Thu, 8/5/10, Mikus Grinbergs mi...@bga.com wrote: From: Mikus Grinbergs mi...@bga.com Subject: os850 on xo-1.5 -- looks good To: OLPC Devel devel@lists.laptop.org, fedora-olpc-list fedora-olpc-l...@redhat.com Date: Thursday, August 5, 2010, 2:06 AM Was able to run a whole bunch of Activities -- did not notice any new failures to launch. Multimedia respectable; YouTube watchable @ 240p. Thanks for a good job, mikus ___ olpc mailing list o...@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/olpc ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: New 10.1.2 build os304 for XO-1 and XO-1.5
--- On Thu, 8/5/10, James Cameron qu...@laptop.org wrote: From: James Cameron qu...@laptop.org Subject: Re: New 10.1.2 build os304 for XO-1 and XO-1.5 To: Yioryos Asprobounitis mavrot...@yahoo.com Cc: Fedora OLPC fedora-olpc-l...@redhat.com, Chris Ball c...@laptop.org, Devel devel@lists.laptop.org Date: Thursday, August 5, 2010, 3:06 AM On Wed, Aug 04, 2010 at 11:40:53PM -0700, Yioryos Asprobounitis wrote: Another issue is the does not appear to be any /boot-alt folder, so I can not boot back to os303 and check from there, unless if I do it manually. That sounds like a problem. Yeh, but looks like is _my_ problem... :-) eg in a new C3 XO-1.5 everything is fine and update from os61 to os304 was mostly uneventful ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
OLPC 10.1.2 Release Candidate 1
http://wiki.laptop.org/go/Release_notes/10.1.2 http://build.laptop.org/10.1.2/xo-1.5/os850 http://build.laptop.org/10.1.2/xo-1/os850 Compressed image size: 704.70mb (+14.05mb since build 304) This is the first release candidate for the 10.1.2 software release, which runs on both XO-1 and XO-1.5. It's a signed build. We've bumped the build number up to 850, so that it's higher than the previous signed XO-1 build, which was 802. Please test the build; we're particularly interested in regressions from either the 8.2.1 release for XO-1 (build802) or the 10.1.1 release for XO-1.5 (build206). The only serious regression we know of from either build is http://dev.laptop.org/ticket/9100 which we're unable to reproduce, but we're working on obtaining laptops that are showing the symptom so that we can debug it. The build has idle-suspend turned on for both XO-1 and XO-1.5. There are some bugs affecting XO-1 idle-suspend only -- #10232 and #10233 -- which aren't regressions from 8.2.1, but are annoying enough that we'd ship without idle-suspend enabled by default on XO-1 if we aren't able to fix them soon. We're going to aim for a final release in around two weeks from now, and then immediately start on a 10.1.3 release with more feature additions. We didn't want new feature work to hold back the 10.1.2 release from XO-1 users waiting for a signed Fedora 11 release. Changelog: * kernel, #10270: assert wifi reset on XO-1.5 during boot * sugar, #9623: another fix for Sugar behavior on disk full * #10277: add python-alsaaudio package, which was present in 8.2.1 * Measure, #10248: ship Measure-31 * Record: ship Record-86 Package changes since build 304: -kernel-2.6.31_xo1.5-20100803.1308.1.olpc.d9b66b661b522f8.i586 +kernel-2.6.31_xo1.5-20100804.1846.1.olpc.72481b500bcb92f.i586 -kernel-firmware-2.6.31_xo1.5-20100803.1308.1.olpc.d9b66b661b522f8.i586 +kernel-firmware-2.6.31_xo1.5-20100804.1846.1.olpc.72481b500bcb92f.i586 +python-alsaaudio-0.5-1.fc11.i586 -sugar-0.84.21-1.fc11.i586 +sugar-0.84.22-1.fc11.i586 ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
MicroSD Card performance variance on XO-1.5
We recently saw that (at least some) XO-1.5 developer machines (C1, ramp units, etc) have SD cards that are significantly faster than what is being shipped to end users. This was a surprise to me (and probably to a few more of us) -- we assumed that most dev machines had a similarly spec'ed SD card to the shipping machines. AIUI, we intended to have an assortment of candidate SD cards on the ramp units, the units I've seen all have pretty fast cards :-) This probably explains the scattered results of testing Record audio/video sync -- with lots of 'works for me' vs definitely doesn't work. The slower SD cards are significantly slower. Deployments can request faster cards (at a cost), but I think it makes sense to test with the lowest common denominator. And we definitely need to understand what SD card is behind each works or doesn't report re Record and other write-intensive tasks. To aid clarity, Mitch has added a .speed test to OFW -- and we've timed a few cards with it: http://wiki.laptop.org/go/SD_and_USB_FLASH_Drive_Performance How to check your internal SD card brand model: http://wiki.laptop.org/go/XO_Debugging_tips cheers, m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: MicroSD Card performance variance on XO-1.5
Hi, This probably explains the scattered results of testing Record audio/video sync -- with lots of 'works for me' vs definitely doesn't work. The slower SD cards are significantly slower. It did explain some of the first Record problems, but then we switched to recording into /tmp (on tmpfs) to isolate that variable. (There were still further problems, so SD speed isn't a sole explanation.) - Chris. -- Chris Ball c...@laptop.org One Laptop Per Child ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: MicroSD Card performance variance on XO-1.5
Early prototypes are built using a wide range of SD cards: I believe we used at least six models in B/C test machines. While individual developers usually only have one or two, we do make sure that all SKUs are distributed to some software developers and testers. Both Quanta and the hardware team are careful to test across all prototype SKUs. When we had a QA department, they too were testing on all SKUs. We could place C2 cards in all prototype SKUs, but then Quanta would refuse to use C6 cards without further testing. I've said it before, and I'll say it again. If you want C6 cards, you will have to pay to get them.OLPCA pushes Quanta for the lowest price, and C2 cards are usually $2-$3 cheaper than C6. BTW, the REAL definition of C2 versus C6 is the resolution of video that can be streamed onto the card. So our higher resolution video encoding problems using C2 cards shouldn't be surprising... wad On Aug 5, 2010, at 2:54 PM, Martin Langhoff wrote: We recently saw that (at least some) XO-1.5 developer machines (C1, ramp units, etc) have SD cards that are significantly faster than what is being shipped to end users. This was a surprise to me (and probably to a few more of us) -- we assumed that most dev machines had a similarly spec'ed SD card to the shipping machines. AIUI, we intended to have an assortment of candidate SD cards on the ramp units, the units I've seen all have pretty fast cards :-) This probably explains the scattered results of testing Record audio/video sync -- with lots of 'works for me' vs definitely doesn't work. The slower SD cards are significantly slower. Deployments can request faster cards (at a cost), but I think it makes sense to test with the lowest common denominator. And we definitely need to understand what SD card is behind each works or doesn't report re Record and other write-intensive tasks. To aid clarity, Mitch has added a .speed test to OFW -- and we've timed a few cards with it: http://wiki.laptop.org/go/SD_and_USB_FLASH_Drive_Performance How to check your internal SD card brand model: http://wiki.laptop.org/go/XO_Debugging_tips cheers, m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: MicroSD Card performance variance on XO-1.5
On Thu, Aug 05, 2010 at 07:55:11PM -0400, John Watlington wrote: BTW, the REAL definition of C2 versus C6 is the resolution of video that can be streamed onto the card. So our higher resolution video encoding problems using C2 cards shouldn't be surprising... Agreed, it may have some bearing. os850, Record of video is streaming to the SD card. (If it were only going to /tmp I'd have disagreed.) I'll release note it. -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Suspend: RTC wakeup, sleep
There is no 1-second ambiguity in the RTC. The CPU can only read out a value accurate to 1 second, but the CPU can tell precisely when the RTC ticks from one second to another, which gives it much higher precision if it's willing to wait. Its precision is greater than its accuracy. But now each resume can have up to 1 second of delay while you wait for the tick to occur. No need to wait; you can ask the RTC to interrupt you on ticks. That will get you very close to knowing the accurate RTC time (based on your interrupt latency). Then set up the kernel to awaken 0. seconds from the previous tick, and when you're there, read the RTC registers continuously until it actually changes. Then you're within a microsecond or better of knowing when it ticked, without creating much delay. Your estimate of the time will be OK on resume, get better after the first tick, and be completely accurate at the second tick. And you can arrange your estimate so that as you improve it, time never moves backwards, only forwards, to avoid strange effects. OLPC is in the market for a dedicated (and local) kernel hacker to work on things like this but right now we don't have one. Until we get one or until someone in the community works on it this will just be ideas. Right. But ideas that will, in theory, double your battery life -- and finally put to use all the incredible effort that went into making hardware that would reliably suspend and resume, tickless kernels, user mode programs that don't awaken unnecessarily, etc. We have also veered off thread...The original questions/responses were on what happens _now_, not what we should be doing. I'd like to understand the existing issues first. I'm sorry I don't have insight into those to offer :-/ John ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: MicroSD Card performance variance on XO-1.5
we definitely need to understand what SD card is behind each works or doesn't report re Record and other write-intensive tasks. Results from motherboard-unmodified B2 XO-1.5 (SHC9370111D): [I bought these SD cards myself; both are 8G, labeled class 6] int:0 Mfg 0x1b OEM 0x534d Micro SD Read: 16.5 Write: 8.3 ext:0 Mfg 0x27 OEM 0x5048 Ext slot Read: 14.9 Write: 4.8 Note: when I ran the OFW command multiple times, the numbers reported for the internal card became lower and lower for each repeat. [Testing Record-86 on os850 on this machine, I was satisfied with how the result looked, when recording a video clip in 'High' quality.] mikus ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Server-devel] (cancel) Problem with registered users locked out
Sorry folks... this was just a case of latency, it took time for some changes to propagate through the system David Leeming Leeming Consulting, P.O. Box 652, Honiara, Solomon Islands Tel: +677 747-6396 (m) 24419 (h) www.leeming-consulting.com From: server-devel-boun...@lists.laptop.org [mailto:server-devel-boun...@lists.laptop.org] On Behalf Of David Leeming Sent: Thursday, 5 August 2010 12:25 p.m. To: 'XS Devel' Subject: [Server-devel] Problem with registered users locked out After doing some minor Moodle changes using the admin login at one school in PNG, we found that all the students have become unable to access the server - it redirects to the login page. However, using the admin XO we can see that all these XOs are appearing as registered users (in Site Admin) and also they still appear in the course to which they are joined. We found we can correct this be re-registering but what can have happened, and is there a quick way to bring them back in again? David Leeming ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] Problem with registered users locked out
On Wed, Aug 4, 2010 at 10:25 PM, David Leeming da...@leeming-consulting.com wrote: After doing some minor Moodle changes using the admin login at one school in PNG, we found that all the students have become unable to access the server We don't know what changes you made -- or what's happening, so it's a bit hard to tell :-/ Questions: - all students, or all users? - does idmanager still have a good list of the users? From http://wiki.laptop.org/go/XS_Techniques_and_Configuration # List who is registered with the XS /home/idmgr/list_registration m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] XO Registration Failed with XS
@James Martin : Thanks alot for the new update. I had installed OS 10.1.2. My registration problem solved. Also I am very glad to see various feature added in this OS build. Specially Gnome on XO. On Mon, Aug 2, 2010 at 7:40 PM, Martin Langhoff martin.langh...@gmail.comwrote: On Sun, Aug 1, 2010 at 8:58 PM, James Cameron qu...@laptop.org wrote: Fixed, please upgrade. So this is in for 10.1.2 - bravo! m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff -- Ganesh (Dragger) Be a FOSSERS, use GNU/Linux ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
