Still having a hard time catching Racket or Ubuntu "in the act". Fortunately, this is at least in part because I haven't had many crashes lately. One thing that seems to happen fairly consistently is that I end up waiting a lot on the background syntax expansion. Sometimes Racket recovers. Sometimes it crashes (or perhaps Ubuntu is shutting it down -- it's trying to send error reports, but can't figure out exactly what Racket is). Since turning the expansion off, I haven't had a crash. Not saying it's Racket's fault, or Ubuntu's, just that it's so...
On Sat, Apr 27, 2013 at 6:16 PM, Robby Findler <ro...@eecs.northwestern.edu>wrote: > Oh, but maybe this is the right way to do things: > > [robby@yanpu] ~/git/plt/src/build$ gdb `which racket` > GNU gdb 6.3.50-20050815 (Apple version gdb-1705) (Fri Jul 1 10:50:06 UTC > 2011) > Copyright 2004 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you > are > welcome to change it and/or distribute copies of it under certain > conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for details. > This GDB was configured as "x86_64-apple-darwin"...Reading symbols for > shared libraries ... done > > (gdb) set args -l drracket > (gdb) run > Starting program: /Users/robby/git/exp/plt/bin/racket -l drracket > > > > On Sat, Apr 27, 2013 at 5:15 PM, Robby Findler < > ro...@eecs.northwestern.edu> wrote: > >> I'm not following. I meant "- ell", fwiw. Here's what I see on my mac os >> x machine: >> >> [robby@yanpu] ~/git/plt/src/build$ gdb racket -l drracket >> warning: could not set timeout limit to `drracket'. >> GNU gdb 6.3.50-20050815 (Apple version gdb-1705) (Fri Jul 1 10:50:06 UTC >> 2011) >> Copyright 2004 Free Software Foundation, Inc. >> GDB is free software, covered by the GNU General Public License, and you >> are >> welcome to change it and/or distribute copies of it under certain >> conditions. >> Type "show copying" to see the conditions. >> There is absolutely no warranty for GDB. Type "show warranty" for >> details. >> This GDB was configured as "x86_64-apple-darwin"...Reading symbols for >> shared libraries ... done >> >> (gdb) run >> Starting program: /Users/robby/git/exp/plt/bin/racket >> >> >> >> >> On Sat, Apr 27, 2013 at 5:09 PM, Patrick King <slowthou...@gmail.com>wrote: >> >>> gdb racket -"ell" >>> gdb racket -"one" >>> gdb racket -"eye" >>> >>> Good to have gdb back, down in the guts. appalling how much I've >>> forgotten. Most likely error message so far: >>> >>> ~/Source$ gdb racket -i drracket >>> Interpreter `drracket' unrecognized >>> ~/Source$ >>> >>> I've tried running from home, usr directories, various variations of ./* >>> for file references. >>> >>> >>> On Sat, Apr 27, 2013 at 5:42 PM, Robby Findler < >>> ro...@eecs.northwestern.edu> wrote: >>> >>>> How about doing this: >>>> >>>> gdb racket -l drracket >>>> >>>> from the command line and then, when gdb shows up, type "run" and hit >>>> return. Then you should get a stack trace, at least. >>>> >>>> Robby >>>> >>>> >>>> On Sat, Apr 27, 2013 at 4:39 PM, Patrick King <slowthou...@gmail.com>wrote: >>>> >>>>> On Sat, Apr 27, 2013 at 5:02 PM, Robby Findler < >>>>> ro...@eecs.northwestern.edu> wrote: >>>>> >>>>>> I'm not sure how to better communicate with ubuntu, but if you run >>>>>> drracket from a shell / terminal window then there might be some output >>>>>> in >>>>>> that window after the crash happens that might be a hint. >>>>>> >>>>>> >>>>> pking@pk-Aspire-5733Z:~/Source$ ./drracket.sh >>>>> Seg fault (internal error) at 0x7f20eb35aa40 >>>>> SIGSEGV SEGV_ACCERR SI_CODE 2 fault on 0x7f20eb35aa40 >>>>> ./drracket.sh: line 2: 2470 Aborted (core dumped) >>>>> /usr/racket/bin/drracket >>>>> pking@pk-Aspire-5733Z:~/Source$ >>>>> >>>>> I haven't found where the core dump is actually hiding. There is no >>>>> line 2470 in usr/racket/bin/drracket, which is what ./drracket.sh: line 2 >>>>> appears to reference. It might refer to a line deep in the gracket source. >>>>> >>>>> Thanks, Pat. >>>>> >>>>> >>>>> >>>> >>> >> >
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