Kyle Jones <kyle_jones(a)wonderworks.com&gt; writes in xemacs-beta(a)xemacs.org: Not according to my tests. I repeatedly hit the code in the patch and didn't see any increase in fds in /proc. Would this be O/S dependent? Unless there's an O/S which does leak descriptors, I think the patch I posted is good enough. The condition certainly seems rare enough that even if some system did leak descriptors it wouldn't be that bad, and it's certainly better than a coredump. Of the two suggestions, a "no flush" flag sounds like the better idea. I don't know. I did get Deja Vu looking over the code where the crash was occurring. I'm reasonably certain this was fixed at some point. Without my patch, it is definitely broken on the system I'm testing on.