Bill Thoen <bthoen@xxxxxxxxxx> writes: > I'm a bit out of my depth with using these debugging tools and > interpreting their results, but I think the problem is due to the output > being just too big for interactive display. Well, I can certainly believe it's related to the amount of data involved, but the exact relationship is far from clear. popen() doesn't do any actual data-pushing, it just sets up a pipe and forks a child process --- so even if the child fails immediately after being forked, that wouldn't lead to the problem seen here. The rarity of a failure here explains why we hadn't noticed the lack of error checking long ago. What I suppose is that you are running into some system-wide resource constraint. Exactly which one, and whether it's easy to fix, remain to be seen. > I tried using strace, but it produced so much telemetry and > unfortunately I couldn't understand it anyway that I don't think this > would do me any good. Sorry, I should have said: the last few dozen lines before the crash are all that will be interesting. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings