On Mon, 16 Mar 2015 14:44:30 -0400 Tony Espy <e...@canonical.com> wrote:
> On 03/15/2015 11:21 AM, Michael Zanetti wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > Hi, > > > > since a week or two I notice increased instability of connectivity on > > my krillin device during daily usage. > > > > The symptoms are visible in that networking starts failing to connect. > > Mostly when switching from WiFi to 3G or back. At some point it just > > stops connecting to 3G or WiFi and it stops listing wireless networks > > at all. Making phone calls doesn't work any more either although the > > indicator suggests it would be registered to GSM. > > Based on the image # you provided below, you're running RTM, correct? > > I've actually been focused on networking isssues with vivid for the last > few weeks now, as a new network-manager ( 0.9.10 ) had landed a few > weeks back and has caused some regressions. > > That said, we really need to try and address the symptoms you've described: > > 1. Switching from WiFi to 3g and back can trigger network connection > failures. > > I'm currently working on a bug that involves the mobile data connection > dropping due to poor signal, or some sort of event that triggers > re-connection ( eg. setting the radio technology ). I've verified that > there's a NM bug which prevents the connection from being re-established > for 5m in these cases: > > https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1418077 > > This *could* exist in RTM, but we haven't managed to reproduce it there > yet. That said, it doesn't really involve WiFi at all, so this may not > be what you're experiencing. > > Jean-Baptiste reported a similar bug to yours which states that when he > goes out of range of his WiFi AP, the connection doesn't automatically > switch from WiFi to 3g: > > https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1410113 > > Is this your scenario, or are you toggling WiFi on/off repeatedly and > seeing failures? If it's the former, perhaps you can add your details > to the the Jean-Baptiste's bug? If it's the latter, does it happen in > both directions ( ie. only when enabling WiFi, only when disabling WiFi, > or both )? > > 2. When this happens, making phone calls fail as well. > > This means the modem's in a bad state. Does this always happen when you > lose your connection? When this happens again, please run: > > /usr/share/ofono/scripts/list-modems > > We also have a great tool call network-test-session which is > super-useful for pin-poining networking issues: > > https://github.com/sergiusens/network-test-session > > Also when this happens can you grab a screenshot of the network > indicator? Another good thing to check is the Cellular System > Settings... does it show your carrier? > > > I just started to examine the logs and found something suspicious in > > syslog. It seems that the device was stuck in a wakeup-suspend loop > > for the whole night, producing dozens of messages in syslog every > > second. Interestingly the battery still survived throughout the night. > > I don't think this has anything to do with the networking issues you've > seen, but as it might be interesting to some of the folks on my team > looking at power consumption... > > > I'm not too familiar with the kernel/networkmanager/powerd/ofono > > things so I'm having a bit troubles to identify what's actually wrong > > and for what component to report the bug. > > network-manager is a good place to start for general networking issues: > > https://bugs.launchpad.net/ubuntu/+source/network-manager/+filebug > > If you have an issue with telephony ( ie. not being able to make voice > calls ), then ofono is a better choice: > > https://bugs.launchpad.net/ubuntu/+source/ofono/+filebug > > Also, don't hestiate to ping me or Alfonso directly on IRC. > > > Here's the syslog from last > > night: > > > > http://notyetthere.org/data/syslog.wakeuploop > > > > Some more things I tried: > > * enabling/disabling flight mode doesn't seem to help. The indicator > > claims to reregister to GSM after I enter the SIM PIN, but still > > doesn't fix the fact that phone calls can't be done or any data > > connection fails. > > The fact that you were prompted to enter your PIN means this isn't a > problem with FlightMode being cleared properly as ofono clearly > understood that your SIM was PIN-locked, and you were prompted. That > said, there's a bug reported against unity8 where it appears that you've > unlocked your SIM, but in reality it's still locked. You might want to > check the indicator again after unlocking and ensure that the SIM is > indeed unlocked: > > https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1426876 > > > * rfkill looks ok (nothing blocked) afaict > > Are you talking about the binary 'rfkill' command? If so, please > realize that we use a daemon called urfkilld to monitor radio kill > switches. This is because not all devices use the kernel rfkill > mechanism ( eg. ofono, WiFi on krillin, ... ). We ship several scripts > that can be used to probe urfkill's state in /usr/share/urfkill/scripts. > 'enumerator' and 'flight-mode' are the two most useful. > > > * the device seems to behave ok otherwise (no spinning processes and > > the UI is smooth) > > * The device is updated to the latest image (r21) but I noticed this > > behaviour with the previous update already. > > * I remember that I received a phone call yesterday evening. That was > > working fine still. Next time I checked (some hours later), > > connectivity was gone but I didn't have time to investigate yesterday > > night. > > > > Anyone has an idea what this might be, or could tell me what component > > I should file a bug for? I think I can reliably reproduce this when > > not rebooting the phone for a couple of days and using it normally for > > a while. > > Please let me know if you still have questions. Right now, trying to > isolate the exact scenario(s) is the most important piece of this. > > Finally, in bugs you comment on and/or report, please indicate how many > SIMs you're using, whether any of them are unusual ( ie. MVNO SIMs ) > and/or PIN locked. > > Regards, > /tony > > > -- > Mailing list: https://launchpad.net/~ubuntu-phone > Post to : ubuntu-phone@lists.launchpad.net > Unsubscribe : https://launchpad.net/~ubuntu-phone > More help : https://help.launchpad.net/ListHelp I am also encountering some regressions in vivid devel-proposed on mako in terms of network connection. 1st. 3g connection is not available on startup i need to restart ofono on every boot to enable 3g https://bugs.launchpad.net/ubuntu/+source/ofono/+bug/1431026 2nd When i walk with my phone to work and when i arrive looking at the indicator network it still shows that i am connected to my home wifi. 3rd I can have up to hundred + WIFI SSID to select from in the network indicator. I suppose those are cached and not deleted when they are not in range anymore. (link to 2nd problem) Thibaut -- Thibaut -- Mailing list: https://launchpad.net/~ubuntu-phone Post to : ubuntu-phone@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-phone More help : https://help.launchpad.net/ListHelp
