Re: [Sugar-devel] [TRANSIENT] Peer XOs NOT shown in Neighborhood view when Power Management is enabled
Hi Samuel,
Thanks for the clarification!
Would it be ok to raise a ticket for this issue?
Thanks and Regards,
Nitika Mangal
QA Manager
Activity Central: http://activitycentral.com
On Tue, Dec 18, 2012 at 11:46 PM, Samuel Greenfeld greenf...@laptop.orgwrote:
It sounds like you are having issues with multicast packet wakeups, which
have always been a bit of a sore spot.
I presume you are using ad-hoc networking, and have not left the XOs
idling to the point they shutdown their screen turns black and the wifi
card is turned off (~20 minutes?). If this is with a schoolserver it still
could be a known issue but might be worth raising again.
Wake-on-LAN behavior with the 8686 wireless card is not as reliable at it
should be. XOs need to wake up on multicast events to receive data
(multicast DNS) about the network neighborhood, but need to clearly hear
such announcements {i.e. no collisions with another data packet}, and
sometimes don't get them even if the XO is awake. In crowded cities where
there are lots of access points and other computers nearby this becomes
more of a problem.
And since updates are only sent every few minutes, it could take quite a
while for everything to get synched up, with things lost along the way.
Schoolservers/Jabber servers use TCP connections, should be retrying at
the TCP level, and should not run into these issues unless a XO went fully
into suspend (black screen/etc.) with the wifi card off. If a XO is
connected to a schoolserver/Jabber it will not show ad-hoc users even if
they are on the same network.
The ad-hoc networking model definitely could be improved but I do not know
if anyone has ever taken up that task.
There are several tickets on the subject; I do not recall filing any
against 13.1.0 yet though.
On Tue, Dec 18, 2012 at 12:40 PM, nitika.mail
nit...@activitycentral.comwrote:
Hi All,
Peer XOs are NOT shown in Neighborhood view when Power Management is
enabled.
Tested on 31016o2 OLPC Image (Build 16) on two XO-1.75's... one Touch and
the other Non-Touch. Following observations were made:
1. Having connected both the XO's to a network, when neighborhood view
was seen on both the XO's, only one XO displayed the other in its
neighborhood view. The second XO was all alone in the neighborhood view.
2. At some point, due to suspending an XO (or network re-connect), same
thing can be observed on either of the XO's
3. When Power management was disabled and system rebooted, this issue was
not observed.
4. This has yet been observed only on XO-1.75's.
If anyone has observed this issue, please do advise.
Also, does this call for raising a bug?
Thanks and Regards,
Nitika Mangal
QA Manager
Activity Central: http://activitycentral.com
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Re: [Sugar-devel] [TRANSIENT] Peer XOs NOT shown in Neighborhood view when Power Management is enabled
On Tue, 2012-12-18 at 13:16 -0500, Samuel Greenfeld wrote: It sounds like you are having issues with multicast packet wakeups, which have always been a bit of a sore spot. I presume you are using ad-hoc networking, and have not left the XOs idling to the point they shutdown their screen turns black and the wifi card is turned off (~20 minutes?). If this is with a schoolserver it still could be a known issue but might be worth raising again. Think I found the problem, in powerd we're setting WOL based on this string: if grep -qi : :14B2 /proc/net/tcp but that string is not present in /proc/net/tcp so WOL is not set according to ethtool, but that string can be found in /proc/net/tcp6 avahi is bound to tcp6 when viewed with 'netstat -nat' This is reproducible in 12.1.0 and 13.1.0 Jerry ___ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel
Re: [Sugar-devel] [TRANSIENT] Peer XOs NOT shown in Neighborhood view when Power Management is enabled
On Wed, Dec 19, 2012 at 5:14 AM, Jerry Vonau jvo...@shaw.ca wrote: Think I found the problem, in powerd we're setting WOL based on this string: if grep -qi : :14B2 /proc/net/tcp but that string is not present in /proc/net/tcp so WOL is not set according to ethtool, but that string can be found in /proc/net/tcp6 avahi is bound to tcp6 when viewed with 'netstat -nat' This is reproducible in 12.1.0 and 13.1.0 Arghhh. Ouch. Does it behave better with: if grep -qi : :14B2 /proc/net/tcp* ? m -- martin.langh...@gmail.com mar...@laptop.org -- Software Architect - OLPC - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel
[Sugar-devel] Locations for bitfrost src-rpm packages
Hi all. Where can I find the corresponding source-rpm packages, for :: * http://rpmdropbox.laptop.org/f18/bitfrost-1.0.18-1.fc18.armv7hl.rpm AND * http://rpmdropbox.laptop.org/f18/bitfrost-sugar-1.0.18-1.fc18.armv7hl.rpm Thanks in advance !! :) Regards, Ajay Garg Dextrose Developer Activity Central: http://activitycentral.com ___ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel
Re: [Sugar-devel] Locations for bitfrost src-rpm packages
ajay wrote: Hi all. Where can I find the corresponding source-rpm packages, for :: * http://rpmdropbox.laptop.org/f18/bitfrost-1.0.18-1.fc18.armv7hl.rpm AND * http://rpmdropbox.laptop.org/f18/bitfrost-sugar-1.0.18-1.fc18.armv7hl.rpm could it be here? https://dev.laptop.org/git/projects/bitfrost/ paul Thanks in advance !! :) Regards, Ajay Garg Dextrose Developer Activity Central: http://activitycentral.com part 2 text/plain 153 ___ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel =- paul fox, p...@laptop.org ___ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel
Re: [Sugar-devel] Locations for bitfrost src-rpm packages
On Thu, 2012-12-20 at 03:37 +0530, Ajay Garg wrote: Hi all. Where can I find the corresponding source-rpm packages, for :: * http://rpmdropbox.laptop.org/f18/bitfrost-1.0.18-1.fc18.armv7hl.rpm AND * http://rpmdropbox.laptop.org/f18/bitfrost-sugar-1.0.18-1.fc18.armv7hl.rpm These are in Fedora proper for i686 but looks like not in fedora's ARM repo. http://mirrors.kernel.org/fedora/updates/testing/18/SRPMS/bitfrost-1.0.18-1.fc18.src.rpm Jerry Thanks in advance !! :) Regards, Ajay Garg Dextrose Developer Activity Central: http://activitycentral.com ___ Devel mailing list de...@lists.laptop.org http://lists.laptop.org/listinfo/devel ___ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel
Re: [Sugar-devel] Locations for bitfrost src-rpm packages
On Wed, Dec 19, 2012 at 10:48 PM, Jerry Vonau jvo...@shaw.ca wrote: On Thu, 2012-12-20 at 03:37 +0530, Ajay Garg wrote: Hi all. Where can I find the corresponding source-rpm packages, for :: * http://rpmdropbox.laptop.org/f18/bitfrost-1.0.18-1.fc18.armv7hl.rpm AND * http://rpmdropbox.laptop.org/f18/bitfrost-sugar-1.0.18-1.fc18.armv7hl.rpm These are in Fedora proper for i686 but looks like not in fedora's ARM repo. http://mirrors.kernel.org/fedora/updates/testing/18/SRPMS/bitfrost-1.0.18-1.fc18.src.rpm They are the same, there's no separation between ARM and i686 when it comes to the Fedora src.rpm Peter ___ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel
