Re: [racket-dev] repeatable segfault in expander
Fix pushed. At Tue, 20 Sep 2011 11:04:46 -0400, Sam Tobin-Hochstadt wrote: > The below program segfaults the expander, but not the compiler (tested > with git HEAD): > > [samth@punge:~/sw/plt/collects/tests/racket/benchmarks/shootout (master) plt] > r > Welcome to Racket v5.1.3.9. > -> (define x '(module m racket > (require racket/require) > (require (filtered-in (lambda (n) foo) scheme > -> (compile x) > ; reference to an identifier before its definition: foo in module: 'm phase: 1 > -> (expand x) > SIGSEGV MAPERR si_code 1 fault on addr 0x10 > Aborted > > Back trace: > (gdb) where > #0 0x0012e416 in __kernel_vsyscall () > #1 0x001a3e71 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 > #2 0x001a734e in abort () at abort.c:92 > #3 0x0822ed2d in fault_handler (sn=11, si=0x876726c, ctx=0x87672ec) > at ../../../racket/gc2/sighand.c:118 > #4 > #5 scheme_register_unbound_toplevel (env=0xa51fec70, id=0xa5234950) > at ../../../racket/gc2/../src/compenv.c:644 > #6 0x082501ee in scheme_bind_syntaxes (where=0x8264d87 "local syntax > definition", names=0xa51fed20, > a=0xa5234f68, exp_env=0xa5734220, insp=0xb7250828, rec=0xa75484d0, > drec=0, stx_env=0xa51fec70, > rhs_env=0xa51fec70, _pos=0xa75484ec, rename_rib=0xa51fe9f0) > at ../../../racket/gc2/../src/compile.c:3623 > #7 0x0807e7f4 in local_eval (argc=3, argv=0xa88a6ec8) at > ../../../racket/gc2/../src/eval.c:5161 > #8 0x002f196a in ?? () > #9 0x002e1094 in ?? () > #10 0x002dfee4 in ?? () > #11 0x002ee0a4 in ?? () > #12 0x002e15f4 in ?? () > #13 0x08086300 in scheme_do_eval (obj=0x0, num_rands=137223416, > rands=0xa7548a14, get_value=1) > at ../../../racket/gc2/../src/eval.c:2688 > #14 0x0809669f in apply_k () at ../../../racket/gc2/../src/fun.c:1289 > #15 0x0809d858 in scheme_top_level_do_worker (k=0x8096610 , > eb=1, new_thread=0, dyn_state=0x0) > at ../../../racket/gc2/../src/fun.c:1128 > #16 0x0809f016 in scheme_apply_macro (name=0xa51fe278, > menv=0xa570c3c8, rator=0xa5721688, > code=0xa51fe2f8, env=0xa51fded8, boundname=0x82a7644, > rec=0xa7548c38, drec=0, for_set=0) > at ../../../racket/gc2/../src/fun.c:1796 > #17 0x0824a02c in compile_expand_macro_app (form=0xa51fe258, > env=0xa51fded8, rec=0xa7548c38, drec=0, > app_position=0) at ../../../racket/gc2/../src/compile.c:4324 > #18 scheme_compile_expand_expr (form=0xa51fe258, env=0xa51fded8, > rec=0xa7548c38, drec=0, app_position=0) > at ../../../racket/gc2/../src/compile.c:4791 > #19 0x0824d84e in scheme_expand_expr (form=0xa51fe258, env=0xa51fded8, > erec=0xa7548c38, drec=0) > at ../../../racket/gc2/../src/compile.c:5257 > #20 0x0807d9b6 in expand_k () at ../../../racket/gc2/../src/eval.c:4201 > #21 0x0809d858 in scheme_top_level_do_worker (k=0x807d600 , > eb=0, new_thread=0, dyn_state=0x0) > at ../../../racket/gc2/../src/fun.c:1128 > #22 0x0809da48 in scheme_top_level_do (k=0x807d600 , eb=0) > at ../../../racket/gc2/../src/fun.c:1041 > #23 0x08082a4b in do_local_expand (name=0x8264e28 "local-expand", for_stx=0, > catch_lifts=, for_expr=0, argc=3, argv=0xa88a6f64) > at ../../../racket/gc2/../src/eval.c:4766 > #24 0x08083379 in local_expand (argc=3, argv=0xa88a6f64) at > ../../../racket/gc2/../src/eval.c:4814 > #25 0x002df5f6 in ?? () > #26 0x08086300 in scheme_do_eval (obj=0x0, num_rands=137223352, > rands=0xa7549320, get_value=1) > at ../../../racket/gc2/../src/eval.c:2688 > #27 0x0809669f in apply_k () at ../../../racket/gc2/../src/fun.c:1289 > #28 0x0809d858 in scheme_top_level_do_worker (k=0x8096610 , > eb=1, new_thread=0, dyn_state=0x0) > at ../../../racket/gc2/../src/fun.c:1128 > #29 0x0809f016 in scheme_apply_macro (name=0xa51fdd40, > menv=0xa570bd58, rator=0xa570c388, > code=0xa51fddc0, env=0xa5736238, boundname=0x82a7644, > rec=0xa7549668, drec=0, for_set=0) > ---Type to continue, or q to quit--- > at ../../../racket/gc2/../src/fun.c:1796 > #30 0x0824a02c in compile_expand_macro_app (form=0xa5756168, > env=0xa5736238, rec=0xa7549668, drec=0, > app_position=0) at ../../../racket/gc2/../src/compile.c:4324 > #31 scheme_compile_expand_expr (form=0xa5756168, env=0xa5736238, > rec=0xa7549668, drec=0, app_position=0) > at ../../../racket/gc2/../src/compile.c:4791 > #32 0x0824d84e in scheme_expand_expr (form=0xa5756168, env=0xa5736238, > erec=0xa7549668, drec=0) > at ../../../racket/gc2/../src/compile.c:5257 > #33 0x0812fbc0 in do_module_begin_at_phase (form=0xa57361d8, > env=0xa57349c0, rec=0xa7549ef4, drec=0, > erec=0xa7549ef4, derec=0, phase=0, body_lists=0x82a7f1c, bxs=0xa5736208) > at ../../../racket/gc2/../src/module.c:6610 > #34 0x08132f7e in do_module_begin (orig_form=0xa5735fd8, > env=0xa57349c0, rec=0xa7549ef4, drec=0) > at ../../../racket/gc2/../src/module.c:6264 > #35 0x08134536 in module_begin_expand (form=0xa5735fd8, > env=0xa57349c0, erec=0xa7549ef4, drec=0) > at ../../../racket/gc2/../src/module.c:7465 > #36 0x0824af63 in scheme_compile_expand_e
[racket-dev] repeatable segfault in expander
The below program segfaults the expander, but not the compiler (tested with git HEAD): [samth@punge:~/sw/plt/collects/tests/racket/benchmarks/shootout (master) plt] r Welcome to Racket v5.1.3.9. -> (define x '(module m racket (require racket/require) (require (filtered-in (lambda (n) foo) scheme -> (compile x) ; reference to an identifier before its definition: foo in module: 'm phase: 1 -> (expand x) SIGSEGV MAPERR si_code 1 fault on addr 0x10 Aborted Back trace: (gdb) where #0 0x0012e416 in __kernel_vsyscall () #1 0x001a3e71 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 #2 0x001a734e in abort () at abort.c:92 #3 0x0822ed2d in fault_handler (sn=11, si=0x876726c, ctx=0x87672ec) at ../../../racket/gc2/sighand.c:118 #4 #5 scheme_register_unbound_toplevel (env=0xa51fec70, id=0xa5234950) at ../../../racket/gc2/../src/compenv.c:644 #6 0x082501ee in scheme_bind_syntaxes (where=0x8264d87 "local syntax definition", names=0xa51fed20, a=0xa5234f68, exp_env=0xa5734220, insp=0xb7250828, rec=0xa75484d0, drec=0, stx_env=0xa51fec70, rhs_env=0xa51fec70, _pos=0xa75484ec, rename_rib=0xa51fe9f0) at ../../../racket/gc2/../src/compile.c:3623 #7 0x0807e7f4 in local_eval (argc=3, argv=0xa88a6ec8) at ../../../racket/gc2/../src/eval.c:5161 #8 0x002f196a in ?? () #9 0x002e1094 in ?? () #10 0x002dfee4 in ?? () #11 0x002ee0a4 in ?? () #12 0x002e15f4 in ?? () #13 0x08086300 in scheme_do_eval (obj=0x0, num_rands=137223416, rands=0xa7548a14, get_value=1) at ../../../racket/gc2/../src/eval.c:2688 #14 0x0809669f in apply_k () at ../../../racket/gc2/../src/fun.c:1289 #15 0x0809d858 in scheme_top_level_do_worker (k=0x8096610 , eb=1, new_thread=0, dyn_state=0x0) at ../../../racket/gc2/../src/fun.c:1128 #16 0x0809f016 in scheme_apply_macro (name=0xa51fe278, menv=0xa570c3c8, rator=0xa5721688, code=0xa51fe2f8, env=0xa51fded8, boundname=0x82a7644, rec=0xa7548c38, drec=0, for_set=0) at ../../../racket/gc2/../src/fun.c:1796 #17 0x0824a02c in compile_expand_macro_app (form=0xa51fe258, env=0xa51fded8, rec=0xa7548c38, drec=0, app_position=0) at ../../../racket/gc2/../src/compile.c:4324 #18 scheme_compile_expand_expr (form=0xa51fe258, env=0xa51fded8, rec=0xa7548c38, drec=0, app_position=0) at ../../../racket/gc2/../src/compile.c:4791 #19 0x0824d84e in scheme_expand_expr (form=0xa51fe258, env=0xa51fded8, erec=0xa7548c38, drec=0) at ../../../racket/gc2/../src/compile.c:5257 #20 0x0807d9b6 in expand_k () at ../../../racket/gc2/../src/eval.c:4201 #21 0x0809d858 in scheme_top_level_do_worker (k=0x807d600 , eb=0, new_thread=0, dyn_state=0x0) at ../../../racket/gc2/../src/fun.c:1128 #22 0x0809da48 in scheme_top_level_do (k=0x807d600 , eb=0) at ../../../racket/gc2/../src/fun.c:1041 #23 0x08082a4b in do_local_expand (name=0x8264e28 "local-expand", for_stx=0, catch_lifts=, for_expr=0, argc=3, argv=0xa88a6f64) at ../../../racket/gc2/../src/eval.c:4766 #24 0x08083379 in local_expand (argc=3, argv=0xa88a6f64) at ../../../racket/gc2/../src/eval.c:4814 #25 0x002df5f6 in ?? () #26 0x08086300 in scheme_do_eval (obj=0x0, num_rands=137223352, rands=0xa7549320, get_value=1) at ../../../racket/gc2/../src/eval.c:2688 #27 0x0809669f in apply_k () at ../../../racket/gc2/../src/fun.c:1289 #28 0x0809d858 in scheme_top_level_do_worker (k=0x8096610 , eb=1, new_thread=0, dyn_state=0x0) at ../../../racket/gc2/../src/fun.c:1128 #29 0x0809f016 in scheme_apply_macro (name=0xa51fdd40, menv=0xa570bd58, rator=0xa570c388, code=0xa51fddc0, env=0xa5736238, boundname=0x82a7644, rec=0xa7549668, drec=0, for_set=0) ---Type to continue, or q to quit--- at ../../../racket/gc2/../src/fun.c:1796 #30 0x0824a02c in compile_expand_macro_app (form=0xa5756168, env=0xa5736238, rec=0xa7549668, drec=0, app_position=0) at ../../../racket/gc2/../src/compile.c:4324 #31 scheme_compile_expand_expr (form=0xa5756168, env=0xa5736238, rec=0xa7549668, drec=0, app_position=0) at ../../../racket/gc2/../src/compile.c:4791 #32 0x0824d84e in scheme_expand_expr (form=0xa5756168, env=0xa5736238, erec=0xa7549668, drec=0) at ../../../racket/gc2/../src/compile.c:5257 #33 0x0812fbc0 in do_module_begin_at_phase (form=0xa57361d8, env=0xa57349c0, rec=0xa7549ef4, drec=0, erec=0xa7549ef4, derec=0, phase=0, body_lists=0x82a7f1c, bxs=0xa5736208) at ../../../racket/gc2/../src/module.c:6610 #34 0x08132f7e in do_module_begin (orig_form=0xa5735fd8, env=0xa57349c0, rec=0xa7549ef4, drec=0) at ../../../racket/gc2/../src/module.c:6264 #35 0x08134536 in module_begin_expand (form=0xa5735fd8, env=0xa57349c0, erec=0xa7549ef4, drec=0) at ../../../racket/gc2/../src/module.c:7465 #36 0x0824af63 in scheme_compile_expand_expr (form=0xa5735fd8, env=0xa57349c0, rec=0xa7549ef4, drec=0, app_position=0) at ../../../racket/gc2/../src/compile.c:4614 #37 0x0824d84e in scheme_expand_expr (form=0xa5735fd8, env=0xa57349c0, erec=0xa7549ef4, drec=0) at ../../../racket/gc2/../src/compile.c:5257 #38 0x0812991
