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Re: SERIOUS: Fatal error: invalid memory access [message #42239 is a reply to message #42200]

Sat, 01 March 2014 11:30

mirek is currently offline

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

ManfredHerr wrote on Thu, 27 February 2014 10:56

Today it is a segmentation fault and I have a complete Stacktrace. It is within the appended text file.

When I noticed that there is a parameter version=-2147483648 I remembered the comment of uninitialized variable. And indeed, in ide.cpp function SetMain there is a call of LoadFromFile with two parameters only. In Stream.cpp the function LoadFromFile expects three parameters, the third of which is version.

The compiler does not complain because LoadFromFile is not in any header file.

I don't know whether this is the reason but it is worth to look at.

After further analysis of posted crashdump, I was finally able to deduce what went wrong....

Thing is that TabBar::Serialize (at theide start) left TabBar::Tab attributes like 'size' and 'pos' uninitialized.

So on theide start, these start unitialized, then it gets Paint called BEFORE having chance to initialize records by calling Repos.

I have fixed the issue by adding Repos at the end of Serialize, and also (just to be sure) by initializing them in the constructor.

So hopefully, both issues should be now fixed....

Mirek

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[Message index]

		SERIOUS: Fatal error: invalid memory access By: slashupp on Wed, 12 February 2014 10:54
		Re: SERIOUS: Fatal error: invalid memory access By: Didier on Wed, 12 February 2014 20:12
		Re: SERIOUS: Fatal error: invalid memory access By: slashupp on Thu, 13 February 2014 09:08
		Re: SERIOUS: Fatal error: invalid memory access By: Klugier on Thu, 13 February 2014 14:39
		Re: SERIOUS: Fatal error: invalid memory access By: slashupp on Thu, 13 February 2014 15:55
		Re: SERIOUS: Fatal error: invalid memory access By: Tom1 on Thu, 20 February 2014 12:03
		Re: SERIOUS: Fatal error: invalid memory access By: Klugier on Thu, 20 February 2014 14:00
		Re: SERIOUS: Fatal error: invalid memory access By: mirek on Thu, 20 February 2014 20:41
		Re: SERIOUS: Fatal error: invalid memory access By: mirek on Fri, 21 February 2014 11:35
		Re: SERIOUS: Fatal error: invalid memory access By: mirek on Fri, 21 February 2014 17:58
		Re: SERIOUS: Fatal error: invalid memory access By: Tom1 on Mon, 24 February 2014 10:01
		Re: SERIOUS: Fatal error: invalid memory access By: mirek on Mon, 24 February 2014 11:19
		Re: SERIOUS: Fatal error: invalid memory access By: Didier on Mon, 24 February 2014 20:52
		Re: SERIOUS: Fatal error: invalid memory access By: Tom1 on Tue, 25 February 2014 12:05
		Re: SERIOUS: Fatal error: invalid memory access By: ManfredHerr on Tue, 25 February 2014 15:17
		Re: SERIOUS: Fatal error: invalid memory access By: mirek on Tue, 25 February 2014 20:36
		Re: SERIOUS: Fatal error: invalid memory access By: Didier on Tue, 25 February 2014 20:37
		Re: SERIOUS: Fatal error: invalid memory access By: mirek on Tue, 25 February 2014 20:41
		Re: SERIOUS: Fatal error: invalid memory access By: Didier on Tue, 25 February 2014 20:46
		Re: SERIOUS: Fatal error: invalid memory access By: Tom1 on Tue, 25 February 2014 21:39
		Re: SERIOUS: Fatal error: invalid memory access By: ManfredHerr on Wed, 26 February 2014 20:46
		Re: SERIOUS: Fatal error: invalid memory access By: ManfredHerr on Thu, 27 February 2014 16:56
		Re: SERIOUS: Fatal error: invalid memory access By: mirek on Thu, 27 February 2014 17:28
		Re: SERIOUS: Fatal error: invalid memory access By: ManfredHerr on Fri, 28 February 2014 17:50
		Re: SERIOUS: Fatal error: invalid memory access By: mirek on Fri, 28 February 2014 19:40
		Re: SERIOUS: Fatal error: invalid memory access By: Klugier on Fri, 28 February 2014 20:27
		Re: SERIOUS: Fatal error: invalid memory access By: mirek on Sat, 01 March 2014 11:30
		Re: SERIOUS: Fatal error: invalid memory access By: mirek on Sat, 01 March 2014 11:34

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