It appears that this fix for bug 675870 has introduced a regression in form of inability to suspend an ongoing ebuild process. I usually launch "sudo nice emerge @world" in some terminal and go on using machine as usual. When some heavy build coincides with some (mostly memory) heavy tasks I need to run, I just switch to the terminal running "emerge @world" and hit Ctrl+Z. This is no longer effective. Reproducible: Always Steps to Reproduce: 1. Start some ebuild 2. Press Ctrl+Z during the compile phase Actual Results: The build output to terminal stops, and shell reports job as suspended, however, in task monitor (e.g. htop) one can see that the child processes of pid-ns-init keep running in background. Expected Results: Being able to suspend (and then resume) entire ebuild process tree.
*** Bug 777321 has been marked as a duplicate of this bug. ***
I'm not sure when, but this has been fixed. It was somewhere prior to 3.0.20
