Re: SD card flashing time

2010-09-16 Thread James Cameron
On 9/15/2010 4:51 PM, Martin Langhoff wrote: On Wed, Sep 15, 2010 at 10:14 PM, James Cameronqu...@laptop.org wrote: For interest, I've compared the time it takes to fs-update using OpenFirmware versus a Linux kernel and shell mediated installation method. Why not compared to (linux-based)

Re: Bad interaction between sleep timeouts and Salut?

2010-09-16 Thread Tomeu Vizoso
On Thu, Sep 16, 2010 at 05:26, James Cameron qu...@laptop.org wrote: On Wed, Sep 15, 2010 at 08:04:25PM -0400, Martin Langhoff wrote: I am curious -- what is the frequency of presence broadcasts when Salut is used? Where is it set? Three minutes.  Perhaps KEEPALIVE_TIMEOUT in

Re: Bad interaction between sleep timeouts and Salut?

2010-09-16 Thread Hal Murray
Assuming the problem is in the Avahi level, we should make sure that the system is coming out from suspend when the radio receives multicast activity directed to us so Avahi can properly update its internal state and also for activities using clique (multi-user chat rooms on server-less

Re: #10363 NORM 10.1.3: Auto-Suspend gets in the way when sharing over Salut

2010-09-16 Thread Tomeu Vizoso
On Wed, Sep 15, 2010 at 18:50, Zarro Boogs per Child bugtrac...@laptop.org wrote: #10363: Auto-Suspend gets in the way when sharing over Salut ---+           Reporter:  erikos           |       Owner:  erikos              

Re: Bad interaction between sleep timeouts and Salut?

2010-09-16 Thread Sascha Silbe
Excerpts from Tomeu Vizoso's message of Thu Sep 16 10:24:26 +0200 2010: Assuming the problem is in the Avahi level, we should make sure that the system is coming out from suspend when the radio receives multicast activity directed to us [...] It doesn't, by explicit decision. [1] Sascha

Re: Bad interaction between sleep timeouts and Salut?

2010-09-16 Thread Daniel Drake
On 16 September 2010 10:14, Sascha Silbe sascha-ml-reply-to-201...@silbe.org wrote: Excerpts from Tomeu Vizoso's message of Thu Sep 16 10:24:26 +0200 2010: Assuming the problem is in the Avahi level, we should make sure that the system is coming out from suspend when the radio receives

Re: #10363 NORM 10.1.3: Auto-Suspend gets in the way when sharing over Salut

2010-09-16 Thread Tomeu Vizoso
On Thu, Sep 16, 2010 at 11:05, Tomeu Vizoso to...@tomeuvizoso.net wrote: On Wed, Sep 15, 2010 at 18:50, Zarro Boogs per Child bugtrac...@laptop.org wrote: #10363: Auto-Suspend gets in the way when sharing over Salut ---+  

Re: reverse-deadkeys?

2010-09-16 Thread Frantisek Dufka
I thought this is on purpose to be simpler for kids or something because that's how you draw the letter with pencil (first a then ´). Please note that this is also not real dead keys and causes other issues because there are in fact two characters stored with this method. You really have a

Re: Bad interaction between sleep timeouts and Salut?

2010-09-16 Thread Martin Langhoff
On Thu, Sep 16, 2010 at 4:24 AM, Tomeu Vizoso to...@tomeuvizoso.net wrote: ... So Salut is an implementation of XEP-0174: Serverless Messaging: Tomeu -- thanks for the exhaustive info. Assuming the problem is in the Avahi level, we should make sure that the system is coming out from suspend

Re: #10363 NORM 10.1.3: Auto-Suspend gets in the way when sharing over Salut

2010-09-16 Thread Richard A. Smith
On 09/16/2010 05:05 AM, Tomeu Vizoso wrote: So the problem is that if you had to resync all state for each machine every time they wake up, you would use lots of bandwidth with the power consumption associated, so much that it may not have been worth sleeping. Hmmm... /me has questions about

Re: Bad interaction between sleep timeouts and Salut?

2010-09-16 Thread John Gilmore
It's pretty simple, actually. When in idle suspend, the system should remain fully functional, just burning fewer ergs. It's an optimization, not a change of behavior. This means the system should wake up anytime it would've gotten an interrupt during normal operation. Which means for any

Re: #10363 NORM 10.1.3: Auto-Suspend gets in the way when sharing over Salut

2010-09-16 Thread Daniel Drake
On 16 September 2010 10:05, Tomeu Vizoso to...@tomeuvizoso.net wrote:  Is there any workaround we can apply -- seems like Salut or the much  maligned Presence Service has some regular event that re-syncs the nodes,  can we make it more often? (Sam suggested this earlier though I didn't  

Re: Bad interaction between sleep timeouts and Salut?

2010-09-16 Thread Hal Murray
Assuming the problem is in the Avahi level, we should make sure that the system is coming out from suspend when the radio receives multicast activity directed to us so Avahi can properly update its That is exactly the problem. It's taking forever-and-a-day to get that sorted. Details at

Re: #10363 NORM 10.1.3: Auto-Suspend gets in the way when sharing over Salut

2010-09-16 Thread Tomeu Vizoso
On Thu, Sep 16, 2010 at 19:06, Richard A. Smith rich...@laptop.org wrote: On 09/16/2010 05:05 AM, Tomeu Vizoso wrote: So the problem is that if you had to resync all state for each machine every time they wake up, you would use lots of bandwidth with the power consumption associated, so much

Re: Bad interaction between sleep timeouts and Salut?

2010-09-16 Thread John Watlington
On Sep 16, 2010, at 1:28 PM, Hal Murray wrote: Assuming the problem is in the Avahi level, we should make sure that the system is coming out from suspend when the radio receives multicast activity directed to us so Avahi can properly update its That is exactly the problem. It's taking

Re: Bad interaction between sleep timeouts and Salut?

2010-09-16 Thread Daniel Drake
On 16 September 2010 18:54, John Watlington w...@laptop.org wrote: On XO-1.5, the use of an SD interface makes suspend/resume without turning off the WLAN work much better. Actually, http://dev.laptop.org/ticket/9960 shows that wake-on-WLAN is unreliable on XO-1.5. It's a trivial test to make

Re: Bad interaction between sleep timeouts and Salut?

2010-09-16 Thread Daniel Drake
On 16 September 2010 18:11, John Gilmore g...@toad.com wrote: It's pretty simple, actually.  When in idle suspend, the system should remain fully functional, just burning fewer ergs.  It's an optimization, not a change of behavior. This means the system should wake up anytime it would've

Learning by Playing

2010-09-16 Thread Carlos Nazareno
Hi guys. Interesting paradigm-changing case studies of video game use in elementary classrooms + curricula how today's tech-savvy children are different. (NY Times free registration required) Learning by Playing: Video Games Win a Beachhead in the Classroom

Re: #10363 NORM 10.1.3: Auto-Suspend gets in the way when sharing over Salut

2010-09-16 Thread Martin Langhoff
On Thu, Sep 16, 2010 at 5:05 AM, Tomeu Vizoso to...@tomeuvizoso.net wrote: So the problem is that if you had to resync all state for each machine every time they wake up, you would use lots of bandwidth with the (...) Another issue with this is that you not only want to resync presence, but

Re: SD card flashing time

2010-09-16 Thread Martin Langhoff
On Thu, Sep 16, 2010 at 2:15 AM, James Cameron qu...@laptop.org wrote: What is interesting about the filesystem result is that it takes longer despite writing far less data; 1.6 GB out of 4 GB.  And there was no ext3 journal involved during the write. But probably a lot of fs updates. That'd

Re: SD card flashing time

2010-09-16 Thread James Cameron
On Thu, Sep 16, 2010 at 05:42:03PM -0400, Martin Langhoff wrote: On Thu, Sep 16, 2010 at 2:15 AM, James Cameron qu...@laptop.org wrote: What is interesting about the filesystem result is that it takes longer despite writing far less data; 1.6 GB out of 4 GB. ?And there was no ext3 journal

Re: #10363 NORM 10.1.3: Auto-Suspend gets in the way when sharing over Salut

2010-09-16 Thread James Cameron
On Thu, Sep 16, 2010 at 05:38:29PM -0400, Martin Langhoff wrote: 2 - hack the Tubes/Telepathy stack to _prevent sleep_ while an actual collaboration session is running This might help. Once an activity is shared, the laptop stays awake until the activity is stopped. (sugar-toolkit.git) ---

Re: SD card flashing time

2010-09-16 Thread Martin Langhoff
On Thu, Sep 16, 2010 at 7:01 PM, James Cameron qu...@laptop.org wrote: No, certainly not.  There's no justification for either mke2fs or resize2fs to write to blocks that do not form part of the filesystem metadata.  Why would you want to zero-out blocks anyway? Thinking of a deployment trying

Re: SD card flashing time

2010-09-16 Thread Mitch Bradley
On 9/16/2010 1:28 PM, Martin Langhoff wrote: On Thu, Sep 16, 2010 at 7:01 PM, James Cameronqu...@laptop.org wrote: No, certainly not. There's no justification for either mke2fs or resize2fs to write to blocks that do not form part of the filesystem metadata. Why would you want to zero-out

Re: SD card flashing time

2010-09-16 Thread James Cameron
On Thu, Sep 16, 2010 at 07:28:39PM -0400, Martin Langhoff wrote: On Thu, Sep 16, 2010 at 7:01 PM, James Cameron qu...@laptop.org wrote: No, certainly not. ?There's no justification for either mke2fs or resize2fs to write to blocks that do not form part of the filesystem metadata. ?Why would

Re: FREE OLPC Repair+Training FEST - Cambridge, Mass - Sat Sept 18, NOON-3PM

2010-09-16 Thread Holt
Awesome we've a dozen+ truly wonderful RSVPs for Saturday's Clinic: coming from as far away as 7hrs down the road in Rochester NY (go http://foss.rit.edu/blog !), New Jersey, and even some exotic land called CaliFilippines, but can you guess the Furthest?? (*) OLPC's VP of Hardware

Re: SD card flashing time

2010-09-16 Thread Martin Langhoff
On Thu, Sep 16, 2010 at 7:53 PM, James Cameron qu...@laptop.org wrote: I agree, this should work.  It seems about the same amount of work as building all images small and resizing them up on first boot. Indeed. The core idea that is interesting is having the firstboot be a special boot that