When resumed, sudo resumes, but SIGCONT not seen by child bash, so bash remains suspended. URL is to upstream bug report and fix. Reproducible: Always Steps to Reproduce: 1.sudo -s 2.suspend 3.fg Actual Results: Keyboard echos typing, but bash is still stopped. Sending SIGCONT to bash gets it working again until next "suspend". Expected Results: bash should be allowed to see the SIGCONT.
Considering this fixed as it's in p4 (and I'm going to ask stable of that in a moment).