[racket-dev] Segfault on HEAD?

The latest commit d408ba4 fixes this for me.

On 02/13/2013 10:14 AM, Asumu Takikawa wrote:
> On 2013-02-13 10:36:09 -0600, Robby Findler wrote:
>>    I don't know what would help, but one thing that usually does is a stack
>>    trace. You can probably get it from a coredump file or by something like
>>    this:
>>    $ gdb `which racket`
>>       [... stuff ...]
>>    (gdb) set args -l setup
>>    (gdb) run
> Here's a stack trace from git HEAD in case it helps:
>
> raco setup: 3 making: stepper
> SIGSEGV SI_KERNEL SI_CODE 128 fault on addr (nil) sent by kernel
>
> Program received signal SIGABRT, Aborted.
> [Switching to Thread 0x7fffe3a93700 (LWP 23633)]
> 0x00007ffff71d6475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
> (gdb) bt
> #0  0x00007ffff71d6475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
> #1  0x00007ffff71d96f0 in abort () from /lib/x86_64-linux-gnu/libc.so.6
> #2  0x0000000000675199 in fault_handler (sn=<optimized out>, si=0xa2cb30, ctx=<optimized out>) at ../../../racket/gc2/sighand.c:99
> #3  <signal handler called>
> #4  0x000000000051cd24 in reverse_prim (argc=argc at entry=1, argv=argv at entry=0x7fffe3a70150) at ../../../racket/gc2/../src/list.c:1340
> #5  0x000000000051e7a5 in scheme_reverse (l=<optimized out>) at ../../../racket/gc2/../src/list.c:1312
> #6  0x00000000005bb37d in write_modules_to_strings (l=0x1, m=0x7fffe3a70150, prefix=0x7fffd6345488) at ../../../racket/gc2/../src/print.c:1858
> #7  0x00000000005bb3a9 in write_modules_to_strings (l=0x1, m=0x7fffe3a70150, prefix=0x7fffd6345488) at ../../../racket/gc2/../src/print.c:1860
> #8  0x00000000005c17d8 in print (obj=0x7fffd63479a0, notdisplay=notdisplay at entry=1, compact=compact at entry=0, ht=0x0, mt=mt at entry=0x0, 
>     pp=pp at entry=0x7fffe3a706a0) at ../../../racket/gc2/../src/print.c:3200
> #9  0x00000000005c26ad in print_to_string (obj=0x7fffd63479a0, len=len at entry=0x7fffe3a708e8, write=write at entry=1, port=0x7fffd6360920, 
>     maxl=maxl at entry=-1, qq_depth=0x0, _release_to_quick=_release_to_quick at entry=0x7fffe3a708d4) at ../../../racket/gc2/../src/print.c:1151
> #10 0x00000000005c2da7 in print_to_port (name=name at entry=0x6c054e "write", obj=0x7fffd63479a0, port=0x7fffd6360920, 
>     notdisplay=notdisplay at entry=1, maxl=maxl at entry=-1, qq_depth=qq_depth at entry=0x0) at ../../../racket/gc2/../src/print.c:1187
> #11 0x00000000005c2e8f in scheme_internal_write (obj=<optimized out>, port=<optimized out>) at ../../../racket/gc2/../src/print.c:476
> #12 0x00000000005b6482 in display_write (name=0x6c054e "write", argc=2, argv=0x7fffb9817088, escape=0)
>     at ../../../racket/gc2/../src/portfun.c:3996
> #13 0x00007ffff7e54cef in ?? ()
> #14 0x00007fffb9816fd8 in ?? ()
> #15 0x00007fffd3235dcd in ?? ()
> #16 0x00007fffd3237c79 in ?? ()
> #17 0x00007fffe3a70e10 in ?? ()
> #18 0x00007fffb9817190 in ?? ()
> #19 0x00007fffb98170c8 in ?? ()
> #20 0x000000000000008d in ?? ()
> #21 0xfffffffffffff440 in ?? ()
> #22 0xffffffffffffffff in ?? ()
> #23 0x00007fffb98170c8 in ?? ()
> #24 0x000000000000008a in ?? ()
> #25 0x0000000000460b74 in scheme_do_eval (obj=0x0, num_rands=num_rands at entry=2, rands=0x7fffe3a70dd0, get_value=get_value at entry=-1)
>     at ../../../racket/gc2/../src/eval.c:2924
> #26 0x0000000000482691 in scheme_finish_apply_for_prompt (prompt=0x0, _prompt_tag=<optimized out>, proc=0x7fffd7862140, argc=argc at entry=2, 
>     argv=0x8) at ../../../racket/gc2/../src/fun.c:6084
> #27 0x00000000004828b6 in scheme_apply_for_prompt (prompt=<optimized out>, prompt_tag=<optimized out>, proc=0x7fffd7862140, argc=argc at entry=2, 
>     argv=<optimized out>) at ../../../racket/gc2/../src/fun.c:6163
> #28 0x0000000000488385 in call_with_prompt (in_argc=<optimized out>, in_argv=0x7fffb98170c8) at ../../../racket/gc2/../src/fun.c:6662
> #29 0x00007ffff7ff2102 in ?? ()
> #30 0x00007ffff7161178 in ?? ()
> #31 0x00007fffe3a92b48 in ?? ()
> #32 0x00007fffe3a70fb0 in ?? ()
> #33 0x00000000004ae692 in scheme_on_demand_generate_lambda (argv_delta=<optimized out>, argv=<optimized out>, argc=<optimized out>, 
>     nc=<optimized out>) at ../../../racket/gc2/../src/jit.c:3641
> #34 scheme_on_demand_with_args (in_argv=<optimized out>, argv=0x7fffb98171a0, argv_delta=<optimized out>) at ../../../racket/gc2/../src/jit.c:3653
> #35 0x00007fffd32373e4 in ?? ()
> #36 0x00007fffe3a70ee0 in ?? ()
> #37 0x00007fffe3a92b48 in ?? ()
> #38 0x00007fffe3a710b0 in ?? ()
> #39 0x00007fffb9817190 in ?? ()
> #40 0x0000000000000087 in ?? ()
> #41 0x00007fffb98171c0 in ?? ()
> #42 0x00007fffd6356770 in ?? ()
> #43 0x00007fffb98171a0 in ?? ()
> #44 0x00007fffe3a71010 in ?? ()
> #45 0x00007ffff6dc8049 in ?? ()
> #46 0x00007fffb98171a0 in ?? ()
> #47 0x00007fffd3239889 in ?? ()
> #48 0x00007fffe3a70fa8 in ?? ()
> #49 0x00007fffe3a92b48 in ?? ()
> #50 0xfffffffffffff440 in ?? ()
> #51 0x00007fffb98171b0 in ?? ()
> #52 0x0000000000000086 in ?? ()
> #53 0xfffffffffffff440 in ?? ()
> #54 0xffffffffffffffff in ?? ()
> #55 0x00007fffb98171c0 in ?? ()
> #56 0x0000000000000086 in ?? ()
> #57 0x0000000000460b74 in scheme_do_eval (obj=0x0, num_rands=num_rands at entry=0, rands=0x0, get_value=get_value at entry=-1)
>     at ../../../racket/gc2/../src/eval.c:2924
> #58 0x0000000000463183 in _scheme_apply_multi_from_native (rator=<optimized out>, argc=0, argv=<optimized out>)
>     at ../../../racket/gc2/../src/schnapp.inc:87
> #59 0x00007ffff7ff2044 in ?? ()
> #60 0x00007fffe3a71168 in ?? ()
> #61 0x00007fffe3a92b48 in ?? ()
> #62 0x0000000000000001 in ?? ()
> #63 0xffffffffffffffff in ?? ()
> #64 0x0000000000000000 in ?? ()
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