Crashes with fprof

Matthias Lang <>
Fri Jul 23 13:56:45 CEST 2004


Manfred Widera writes:

 > ===========================================================
 > wbs2 Code/Test> erl
 > Erlang (BEAM) emulator version 5.3.6.3 [source] [hipe]
 > 
 > Eshell V5.3.6.3  (abort with ^G)
 > 1> fprof:apply(loop1,l,[10]).
 > Speicherschutzverletzung
 >                         wbs2 Code/Test>
 > ============================================================
 > 
 > ("Speicherschutzverletzung" is the german term for a segmentation fault).
 > 
 > where loop1 is defined by 
 > 
 > -------------------------------------------------------------
 > -module(loop1).
 > 
 > -export([l/1]).
 > 
 > l(0) -> 0;
 > l(X) -> 1 + l(X - 1).
 > -------------------------------------------------------------

I tried this on locally compiled R9C-1 and R9C-2 running on Debian
unstable. No problem in either case:

  | Erlang (BEAM) emulator version 5.3.6.3 [source] [hipe]
  | 
  | Eshell V5.3.6.3  (abort with ^G)
  | 1> c(loop1).
  | {ok,loop1}
  | 2> fprof:apply(loop1, l, [10]).
  | 10

Maybe it's some random memory trashing, maybe it's a toolchain
problem. I don't have any SuSE machines, but someone else on the list
is bound to.

Matthias



More information about the erlang-questions mailing list