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==Ùltimas Notícias traduzidas do== |
==Ùltimas Notícias traduzidas do== |
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=LAPTOP NEWS= |
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1. Stable build: After a final few bugs that had hidden in corners |
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were driven into the light, we issued Stable Build 303 along with |
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Q2B76 firmware this week. Highlights of this stable build include: |
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* a working mesh network; |
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* an updated web browser that scales on our high-resolution screen, making for improved web experience; |
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* Gnash—the FOSS Flash player (still somewhat unstable)—pre-installed; Adobe's Flash 9 is also known to work, but not packaged or installed as part of the build; |
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* a touch-pad driver fix for jumping cursor: the touch pad should be more usable, and the tablet is enabled on B2 systems; and |
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* boot time has improved due to a scheduler fix. |
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Please read the [[OLPC_Software_Release_Notes|release notes]]. |
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2. Activities: There are some new activities in the new build: |
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* Blockparty (aka Tetris) was written by Vadim Gerasimov and John Palmieri; |
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* Slideshow was written by Erik Blankinship and Marco Gritti; and |
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* Journal "Preview" (a first pass at the journal activity) was written by Marco and Tomeu Vizoso. |
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3. Community: Mauro Torres and the team from the Tuquito Project in |
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Argentina have put together a calculator activity that will appear |
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soon in our builds. They are working on a extensions that will let the |
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children explore their calculations in notational form as well as get |
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the "answer." |
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4. Kernel: While Andres Salomon was working on the new stable release, |
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he found (and fixed) a build-system bug/interaction that was keeping |
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fixes from hitting the stable kernel builds. |
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5. Richard Smith and John Watlington modified some B2 machines to ship |
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out to suspend/resume developers; these mods fix some known hardware |
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problems that only affect suspend/resume. |
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6. Q2B76: This firmware release should have a temporary work-around |
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for the problem that has been costing us about 1/3 of our system's |
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performance whenever a network interface was alive on USB (either our |
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wireless or ethernet). |
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7. Mitch Bradley continued improvements to the suspend/resume code: |
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* time-to-resume is now down to 12 mS, except for the CAFE; |
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* reinit is working well; he can suspend/resume reliably without a serial port; |
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* suspend/resume is now working on B1 in addition to B2; |
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* the suspend routine is now independent of the virtual address from which it is called. |
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Mitch also integrated Lilian Walter's first cut at self-test |
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diagnostics into the experimental firmware. |
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8. Community II: William Cohen reported a major coup: he got the |
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system-level performance tool "oprofile" running on the Geode, and |
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immediately started posting very helpful performance data. We have |
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wanted this tool for quite a while, and have not had the time to do it |
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ourselves. Our great thanks to Will. |
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9. Trac: The bug-tracking system has passed several milestones: more |
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than 1000 bugs reported and more than 250 people registered. Our |
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community is growing quickly (See http://dev.laptop.org). |
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10. Mesh status: Michail Bletsas and teams from Cozybit and Marvell |
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spent the past week doing intense debugging on the mesh firmware. |
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There were two serious bugs uncovered: mesh routing was erratic in |
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noisy environments (e.g., OLPC's Cambridge office) and there was data |
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corruption observed during large file transfers. The first problem was |
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solved by allowing route request and reply frames to be sent at rates |
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as low as 1Mbps. The data corruption issue was tracked to MTUs (frame |
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sizes) larger than 1494 bytes. Firmware addressing the first issue was |
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released early this week and a fix for the second will be incorporated |
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in next week's firmware build. (In the meantime, people should set the |
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MTU of msh0 to 1494 if they want to utilize the mesh interface). In |
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parallel a variety of driver issues were addressed and should be |
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pulled into the XO build next week, at which point the mesh substrate |
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will be fully functional. |
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11. Fun and games: Chris "sugarized" a game called Kye |
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(http://games.moria.org.uk/kye/pygtk) and posted the bundle to the |
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Sugar mailing list. |
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Laptop News is archived at [http://laptop.media.mit.edu/laptopnews.nsf/latest/news Laptop News]. |
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You can subscribe to the OLPC community-news mailing list by visiting the [http://mailman.laptop.org/mailman/listinfo/community-news laptop.org mailman site]. |
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Press requests: please send email to press@laptop.org |
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Revision as of 14:49, 24 March 2007
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