[racket-users] Segfault when using Graphical Debugger

2018-04-21 Thread Philip McGrath
In a particular module, I can consistently trigger a segfault by opening DrRacket's graphical debugger, setting a breakpoint, and evaluating an expression at the REPL. I am using Racket 6.12 on Mac OS 10.13.2: I have not (yet) tried to reproduce this on other platforms. Unfortunately I don't have

Re: [racket-users] Segfault when using Graphical Debugger

2018-04-21 Thread Matthew Flatt
Thanks for the crash report! It doesn't immediately point to the problem, but it's good starting point. I'll ask you for more debugging help off-list, and we can report back here afterwards. At Sat, 21 Apr 2018 05:11:10 -0500, Philip McGrath wrote: > In a particular module, I can consistently trig

Re: [racket-users] Segfault when using Graphical Debugger

2018-04-21 Thread Matthew Flatt
Since the crash is consistent, can you try a snapshot build from https://pre.racket-lang.org/ to check whether the crash persists? The only repair I remember since v6.12 that seems relevant is 55ffc24011. Your crash is consistent with the bug fixed by that commit, but my guess is that it's somethi