"Basil L. Contovounesios" writes: > Eli Zaretskii writes: > >>> From: "Basil L. Contovounesios" >>> Cc: Eli Zaretskii , 48629@debbugs.gnu.org >>> Date: Wed, 26 May 2021 16:58:17 +0100 >>> >> Then step through the code and see what it does and why it doesn't >> respond to keyboard input. > > I guess I need debugging symbols for this, because at this point > step/next progressively and slowly climb frames, without any indication > of the surrounding code or values (GDB maintains that it's in pselect.c > the whole time). I'm now running with '-Og -ggdb'. I didn't have time to investigate further the last two times the freeze happened, but I did save the attached output of 'thread apply all bt full' for posterity. -- Basil