<div dir="ltr"><div>I can see apps utilizing the network interface (other than loopback) hanging but this the entire gnome interface minus the mouse/keyboard and the app with focus freezing.<br></div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Oct 16, 2015 at 10:08 AM, Rick Stevens <span dir="ltr"><<a href="mailto:ricks@alldigital.com" target="_blank">ricks@alldigital.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 10/16/2015 08:23 AM, Shawn Badger wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I have been searching this off and on for a while but haven't put a<br>
bunch of time into it. On both my desktop and laptop Gnome will<br>
occasionally freeze for a few seconds to minutes when the network is<br>
changed (VPN disconnect or connect, wireless network change, unplug<br>
network cable). Every time the keyboard and mouse remain functional as<br>
does the app that has focus but I can not switch apps. On occasion the<br>
laptop will actually freeze long enough (>10 minutes) that I just get<br>
tired of waiting for it and have to do a hard shutdown.<br>
<br>
Has anyone else seen this?<br>
<br>
A little info on the computers i'm seeing this on:<br>
<br>
Desktop<br>
Asus desktop with a I5, 16GB memory and a 512GB SSD for the OS. Nvidia<br>
and Virtual box proprietary kernel modules from RPM Fusion<br>
<br>
<br>
Laptop<br>
IBM T61 with 4gb and a 512GB SSD. Virtual box proprietary kernel module<br>
from RPM Fusion<br>
</blockquote>
<br></span>
For one possibility, there are a number of things that depend on DNS<br>
resolution which will stall until a) DNS starts working again; or b)<br>
the DNS timeout expires (up to a minute generally). There are other<br>
things that may be dependent on the network being there and may pause<br>
or lock up if you yank the rug out from under them, network-wise. Just<br>
think of all the stuff that's trying to sort out their routes, or your<br>
machine having to invalidate all its ARP cache entries, etc.<br>
<br>
I use XFCE for the most part and I've seen similar things, but I<br>
understand what's dependent on the network so it doesn't surprise me.<br>
I also manage somewhere around 300 servers (no desktops) and odd things<br>
can occur if the network isn't solid. After a period of time, most sort<br>
themselves out, but sometimes it takes a network restart or a complete<br>
reboot to get back into some form of order.<br>
----------------------------------------------------------------------<br>
- Rick Stevens, Systems Engineer, AllDigital <a href="mailto:ricks@alldigital.com" target="_blank">ricks@alldigital.com</a> -<br>
- AIM/Skype: therps2 ICQ: 226437340 Yahoo: origrps2 -<br>
- -<br>
- "Men occasionally stumble over the truth, but most of them pick" -<br>
- themselves up and hurry off as if nothing had happened." -<br>
- -- Winston Churchill -<br>
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