On Oct 9, 2012, at 2:20 PM, Neil Van Dyke wrote: > The other day, I was reproducibly crashing fresh DrRacket 5.3 processes by > invoking the Macro Stepper on a particular file. (Not a seg fault; Linux > out-of-memory killer would kill it after it got to close to 3GB RAM usage, > since I don't use swap space.) > > By commenting-out macro uses, I was able to get DrRacket to not crash, but > its RAM usage would fluctuate between 1.5GB and 800MB. However, after the > Macro Stepper rendered this time that it didn't crash, when I returned to > DrRacket main window, the Definitions pane was blank white (scrollbar still > there, and indicating some text about the size of my program, but no actual > text visible in it, nor selectable). > > What was confusing was that the program was not very big, and made only light > and simple use of macros. But my attempts to trim it down to a smaller test > case were unsuccessful. > > I don't recall seeing problems like this with the Macro Stepper before. Even > really complicated and questionable uses of macros, it has handled like a > champ. I suppose this could be a regression from 5.2.1 to 5.2. > > If someone is really interested, I will try to find the problematic file > later tonight/tomorrow.
Well, that does sound valuable. I should mention, though, that the file under consideration here is associated not with the macro stepper, but instead with the teaching-language evaluation stepper. John > > Neil V. > > John Clements wrote at 10/09/2012 05:00 PM: >> The message below suggests that evaluating "stepper-tool.rkt" caused… a seg >> fault. I'm chalking this up to "oh, DrRacket sometimes crashes", but I admit >> that it makes me a bit uncomfortable. >> >> Advice or suggestions? >> >> John >> >> >> Begin forwarded message: >> >> >> >>> From: d...@racket-lang.org >>> >>> Subject: [DrDr] R25433 (timeout 2) (unclean 2) (stderr 6) (changes 67) >>> Date: October 9, 2012 8:04:40 AM PDT >>> To: >>> cleme...@racket-lang.org >>> >>> >>> DrDr has finished building push #25433 after 57.98m. >>> >>> >>> http://drdr.racket-lang.org/25433/ >>> >>> >>> A file you are responsible for has a condition that may need inspecting. >>> unclean: >>> >>> http://drdr.racket-lang.org/25433/collects/stepper/stepper-tool.rkt >>> >>> >>> >>> >>> >> >> >> _________________________ >> Racket Developers list: >> >> http://lists.racket-lang.org/dev >> >> >>
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