The issue in 15.10 is a different problem, likely in pidgin 2.10.11 where each time a sound plays, it leaks a socket pair, eventually running out of files. I'd guess its fixed in 2.10.12 with the commit "Remove Gstreamer pipeline after playing a sound".
The issue in 15.10 is a different problem, likely in pidgin 2.10.11 where each time a sound plays, it leaks a socket pair, eventually running out of files. I'd guess its fixed in 2.10.12 with the commit "Remove Gstreamer pipeline after playing a sound".