[erlang-questions] Re: Debugger fault at startup.

Attila Rajmund Nohl <>
Mon Sep 27 13:56:45 CEST 2010


I've just tested on R14B on SuSE 10 and the wx demo works fine... My
gut feeling is that your build was not properly built. Or you might
have a hardware error.

2010/9/27, Michael Richter <>:
> After reading Pascal Chapier's message, I tried something else.  From a
> fresh, unaltered build of R14B on a pretty bog-standard Ubuntu 10.04
> installation typing "wx:new()." in the shell generates precisely the same
> crash message.  This leads me to believe that wx is badly broken in R14B.
>  Trying either "wx:new()." or "debugger:start()." in R14B on a completely
> standard Windows XP system causes the VM to crash instantly, whether run as
> werl.exe or erl.exe.  I happen to also have R13B02 on that machine and the
> same problem is exhibited there.
>
> It looks to me like wx support is really badly broken and has been for some
> time.
>
> On 27 September 2010 12:22, Michael Richter <> wrote:
>
>> So, for the first time I find myself having to fire up the debugger in
>> Erlang.  Following the user manual, I do this:
>>
>> $ erl
>>
>> Erlang R14B (erts-5.8.1) [source] [64-bit] [smp:2:2] [rq:2]
>>> [async-threads:0] [hipe] [kernel-poll:true]
>>
>>
>>> Eshell V5.8.1  (abort with ^G)
>>
>> 1> debugger:start().
>>
>> beam.smp: malloc.c:3096: sYSMALLOc: Assertion `(old_top == (((mbinptr)
>>> (((char *) &((av)->bins[((1) - 1) * 2])) - __builtin_offsetof (struct
>>> malloc_chunk, fd)))) && old_size == 0) || ((unsigned long) (old_size) >=
>>> (unsigned long)((((__builtin_offsetof (struct malloc_chunk,
>>> fd_nextsize))+((2 * (sizeof(size_t))) - 1)) & ~((2 * (sizeof(size_t))) -
>>> 1))) && ((old_top)->size & 0x1) && ((unsigned long)old_end & pagemask) ==
>>> 0)' failed.
>>
>>                                  Aborted
>>
>> $
>>
>>
>> I don't even know where to begin here.  Is there any expert on the
>> debugger's inner workings that knows both what that means and what can be
>> done about it?
>>
>> --
>> "Perhaps people don't believe this, but throughout all of the discussions
>> of entering China our focus has really been what's best for the Chinese
>> people. It's not been about our revenue or profit or whatnot."
>> --Sergey Brin, demonstrating the emptiness of the "don't be evil" mantra.
>>
>
>
>
> --
> "Perhaps people don't believe this, but throughout all of the discussions of
> entering China our focus has really been what's best for the Chinese people.
> It's not been about our revenue or profit or whatnot."
> --Sergey Brin, demonstrating the emptiness of the "don't be evil" mantra.
>


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