Tvheadend

I got the same setup (beside the crappy Tevii) and no problem at this front (pull out the Tevii and look if Tvh starts probably).
You could grab an up to date Tvh for OpenElec from here http://goo.gl/833OO2, maybe you fu up something at build ?
Also the Milhouse builds are highly unstable (which should not affect Tvh). Maybe check if the problem exist at 6.0Beta !

I'm using the tvheadend builds from milhouse.openelec.tv/builds/addons
so Tvh is up to date
Last working build without issues was 4.1-433
You're using the same setup, did you solve the problem with artefacts when watching hd channels? (usb issue?)

If you downgrade tvh to 4.1-433 tvh work right ? If so this "should" be a tvh problem.

I think I have this same issue.

4.1-607~g527b1fd works fine.
4.1-792~g787c676 starts but the web front-end does not respond. I can see that tvheadend is reading from the DVB frontends (using strace), but nothing logs after Kodi connects:

Oct 29 18:23:53 satellite tvheadend⁸⁷¹⁵: mpegts: 570MHz in Saorview - tuning on DiBcom 7000PC : DVB-T #0
Oct 29 18:23:53 satellite tvheadend⁸⁷¹⁵: subscription: 0006: "epggrab" subscribing to mux "570MHz", weight: 4, adapter: "DiBcom 7000PC : DVB-T #0", network: "Saorview", service: "Raw PID Subscription"
Oct 29 18:23:53 satellite tvheadend⁸⁷¹⁵: mpegts: 546MHz in Saorview - tuning on DiBcom 7000PC : DVB-T #0
Oct 29 18:23:53 satellite tvheadend⁸⁷¹⁵: subscription: 0007: "epggrab" subscribing to mux "546MHz", weight: 4, adapter: "DiBcom 7000PC : DVB-T #0", network: "Saorview", service: "Raw PID Subscription"
Oct 29 18:23:53 satellite tvheadend⁸⁷¹⁵: htsp: Got connection from 192.168.1.10
Oct 29 18:23:53 satellite tvheadend⁸⁷¹⁵: htsp: 192.168.1.10: Welcomed client software: Kodi Media Center (HTSPv18)
Oct 29 18:23:53 satellite tvheadend⁸⁷¹⁵: htsp: 192.168.1.10 [ Kodi Media Center ]: Identified as user 'kodi'
Oct 29 18:23:53 satellite tvheadend⁸⁷¹⁵: htsp: 192.168.1.10 [ kodi | Kodi Media Center ]: Privileges updated
Oct 29 18:24:29 satellite kernel: [469086.358916] init: tvheadend main process (8715) killed by KILL signal

Downgrading back to 4.1-607~g527b1fd works fine.

Same Problem and same output on debug.

since about 2 days i have the following problems and I think this are always the same Problem:

Starting with a new config tvheadend will start. All will work well but wen i map services to channels... first not all channels will get information from ota epg grapper and (I think) when i add more channels, tvheadend will disconnect kodi and will not answer via the web interface. restart will take very long up to not possible to stop tvheadend (have to kill -9)

Frank

It looks like a mutex issue - could you attach debugger to the running process - 'Dead or Live Lock' section in https://tvheadend.org/projects/tvheadend/wiki/Debugging .

Could you try v4.1-800-gbe412db or later ?

4.1-830~gaeb20ca works fine for me.