Re: Annoying bug in NM1.0.0-8

[Dan Mossor <danofsatx gmail com>]

On 04/19/2015 10:20 AM, Dan Mossor wrote:
> Greetings, folks.
>
> I and at least one other individual have noticed an annoying bug with
> NetworkManager-1.0.0-8.fc22.x86_64 but we aren't sure of the root cause
> so we can't legitimately file a BZ on it yet. The issue we're seeing is
> that with a fully updated Fedora 22 Beta system, once NM is in operation
> for a bit it starts to loose connectivity. Not total connectivity, but
> partial. For example, I can run a search on Google for anything and get
> back the usual tens or hundreds of results. but on a single page of
> results I can only successfully open 2 or 3 of them.
>
> Specifically, a few sites I'm noticing I can no longer reach:
> https://www.happyassassin.net/
> http://docs.kde.org
> http://mirrors.rpmfusion.org
> http://rsyslog.org
>
> However, all Fedora Project, Red Hat CentOS and GNOME links work just
> fine. Pages from the Stack Exchange family of sites are hit and miss,
> but mostly miss. Also, it is only http traffic - I can hit these sites
> with ftp, ssh or rsync where supported. I have tried using Chrome,
> Firefox, Konquerer, ReKonq, wget and curl and get the same result every
> time. To aid in troubleshooting, I am providing a link to the pcap [0]
> of my wget attempt against the RPM Fusion mirror site - it's
> disappointing, really.
>
> The only commonality I've discovered among the affected systems is that
> they are using Intel wireless adapters. Specifically in my case, a
> Centrino 2230 and a Centrino 2200. The other user I mentioned earlier
> indicated that he believed the fault may lie in the routing tables, but
> I have not confirmed or ruled this out yet - I'm still shooting in the
> dark.
>
> I know it is not network issues at large, as on this network I have
> other devices - Android, ChromeOS, and Windows 8.1 devices - that all
> work fine. In fact, on one of my affected systems, it was working just
> fine on F21 and NM 0.9.10 before I updated it to F22 last night with
> fedup. This points directly to F22 being at fault, but like I mentioned,
> I don't know if it is NetworkManager or Intel Wireless drivers.
>
> Thoughts? Concerns? Criticisms?
>
> Dan
>
>
> [0] http://goo.gl/qG76ey - a shortened link to Google Drive, full link:
> https://drive.google.com/open?id=0ByM4hcGUETFIS0RBLW8wMU5UOFU&authuser=0

Ok, my wired networking problem has been hashed out - it was a physical 
layer issue. That led me to discovering that the problem is worse than I 
feared, it exists on wired networking also, and can't be tied to Intel 
drivers since both systems I tested this on have either a Qualcomm 
Atheros or Realtek gigabit ethernet NIC.

I have filed a bug.
https://bugzilla.redhat.com/show_bug.cgi?id=1213194


--
Dan Mossor, RHCSA
Systems Engineer
Fedora Server WG | Fedora KDE WG | Fedora QA Team
Fedora Infrastructure Apprentice
FAS: dmossor IRC: danofsatx
San Antonio, Texas, USA