On March 21, 2017 8:35:36 PM GMT+01:00, Alan McKinnon <alan.mckin...@gmail.com> wrote: >This post is rather vague, sorry about that in advance. > >I've spent much time on this and gotten absolutely nowhere. So I >conclude all my thoughts and assumptions are wrong and not worth even >sharing (on account of them being so wrong). > >I have firefox like this: > >[I] www-client/firefox > Available versions: 45.7.0^d 45.8.0^d (~)51.0.1^d {bindist >custom-cflags custom-optimization dbus debug ffmpeg +gmp-autoupdate >+gstreamer gtk2 hardened hwaccel jack +jemalloc +jemalloc3 +jit neon >pgo >pulseaudio rust selinux +skia startup-notification system-cairo >system-harfbuzz system-icu system-jpeg system-libevent system-libvpx >system-sqlite test wifi L10N="ach af an ar as ast az be bg bn-BD bn-IN >br bs ca cak cs cy da de dsb el en-GB en-ZA eo es-AR es-CL es-ES es-MX >et eu fa ff fi fr fy ga gd gl gn gu he hi hr hsb hu hy id is it ja ka >kk >km kn ko lij lt lv mai mk ml mr ms nb nl nn or pa pl pt-BR pt-PT rm ro >ru si sk sl son sq sr sv ta te th tr uk uz vi xh zh-CN zh-TW"} > Installed versions: 51.0.1^d(21:30:20 21/02/2017)(dbus >gmp-autoupdate jemalloc pulseaudio skia startup-notification >system-harfbuzz system-icu system-jpeg system-libevent system-libvpx >system-sqlite wifi -bindist -custom-cflags -custom-optimization -debug >-gtk2 -hardened -hwaccel -jack -neon -pgo -rust -selinux -system-cairo >-test L10N="en-GB en-ZA -ach -af -an -ar -as -ast -az -bg -bn-BD -bn-IN > >-br -bs -ca -cak -cs -cy -da -de -dsb -el -eo -es-AR -es-CL -es-ES >-es-MX -et -eu -fa -ff -fi -fr -fy -ga -gd -gl -gn -gu -he -hi -hr -hsb > >-hu -hy -id -is -it -ja -ka -kk -km -kn -ko -lij -lt -lv -mai -mk -ml >-mr -ms -nb -nl -nn -or -pa -pl -pt-BR -pt-PT -rm -ro -ru -si -sk -sl >-son -sq -sr -sv -ta -te -th -tr -uk -uz -vi -xh -zh-CN -zh-TW") > Homepage: http://www.mozilla.com/firefox > Description: Firefox Web Browser > >with these plugins: >- adblockplus >- flashblock >- foxyproxy standard >- restart browser >- user agent switcher >- youtube all html5 > >Occasionally, according to no discernable pattern, all my tabs on all >some/most/all Firefox windows stop responding. Clicking and scrolling >in >the content has no effect. Can't open new tabs, can't close tabs, can't > >switch to existing tabs. Sometimes it affects only one firefox window, >sometimes all firefox windows. > >Imagine if you will that firefox is coded with one global loop that >gets >user actions and responds, then that loop gets stuck somewhere. The >firefox window will not be affected (controlled by KDE), and neither is > >the X-server but the tabs can all do nothing till the loop unsticks. >It's an effect like that. > >Sometimes it does work after a delay >30s. >The sysadmin in me says 30s? Hah, check DNS resolver timeouts. Checked, > >found nothing unusual. Proxy looks OK, VPN looks OK, Chrome never has >this problem so it's firefox specific. > >Firefox itself is up, it responds correctly to moving around the menus, > >just can't do some of the actions like open the Addons page (that is >regular content in a tab). > >The issue ALWAYS goes away if I restart firefox, either with the >restart >addon or Alt-F4 and start from KDE menu. I have "load previous tabs" >set >to true so those actions are pretty equivalent. > >DE is Plasma 5, and the problem isn't from a recent upgrade, I've been >battling with this for ages through MANY kde and firefox updates. > >My question: >Where the hell do I start to figure out what's really going on? >I used up all my sysadmin troubleshooting knowledge and have had to >revert back to n00b status on this one.
I see this with some websites that do some weird stuff. CPU for at least one core then also goes to 100รท. Make a list of websites open in tabs when it happens to see if there are common ones that are always there when you have the issue. -- Joost -- Sent from my Android device with K-9 Mail. Please excuse my brevity.