[dmd-beta] D2 2.058 beta 4

Steve Schveighoffer schveiguy at yahoo.com
Mon Feb 13 13:51:34 PST 2012

This can be any number of things.  It seems like a corruption issue.

Just for your info, however, the code you quoted below is wasteful -- Starting with 2.041 or around there, the code you give will allocate a new array, then throw it away on the first append.

You are better off with this:

Attribute[] attrs;

No, I don't think this will solve your problem.  But it should avoid the throw-away initial array allocation.


----- Original Message -----
> From: Jacob Carlborg <doob at me.com>
> To: Discuss the dmd beta releases for D <dmd-beta at puremagic.com>
> Cc: 
> Sent: Monday, February 13, 2012 3:47 PM
> Subject: Re: [dmd-beta] D2 2.058 beta 4
> On 13 feb 2012, at 21:31, Jacob Carlborg wrote:
>>  On 13 feb 2012, at 21:16, Walter Bright wrote:
>>>  On 2/13/2012 12:03 PM, Jacob Carlborg wrote:
>>>>  My serialization library Orange doesn't work with this beta. I 
> get a segmentation fault. The backtrace from GDB seems to indicate some sort of 
> infinite loop or recursion. I see some traces of "__lambda" in the 
> backtrace but that is not used anywhere in my code.
>>>>  This is the part of the GDB backtrace that repeats itself.
>>>  I'm sorry, but a back trace from your code is not useful to 
> figuring out what went wrong. I don't have your code, know what you're 
> doing, when did this problem appear, anything.
>>  Yeah, I know, sorry. I just posted so you guys know while I'm working 
> on a test case. Hmm, when I'm looking at the backtrace it might be another 
> problem. It might be a problem with array appending or the GC, in this method:
> https://github.com/jacob-carlborg/orange/blob/master/orange/xml/PhobosXml.d#L764
> I'm seeing some general problem with array appending. Removing the append in 
> the above method and the segfault moves to an other part of the code, which uses 
> array appending.
> -- 
> /Jacob Carlborg
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