Re: [ruby-gnome2-devel-en] seeing GC-related crashes in 3.0.7, I think

[Kouhei S. <ko...@co...>]

Hi,

In <CAG...@ma...>
  "[ruby-gnome2-devel-en] seeing GC-related crashes in 3.0.7, I think" on Tue, 20 Oct 2015 13:50:13 +0100,
  jc...@gm... wrote:

> Hi, thank you very much for 3.0, it's added a couple of features I
> needed and I'm now making progress on a goi binding for my image
> processing library.
> 
> However I'm seeing crashes which seem to be related to
> #<GLib::Param::Object:0x000000011be6e8> objects being GCd when they
> should not.
> 
> I have an Argument class I used to track object args during setup. The
> init looks like:
> 
>         def initialize(op, name)
>             @op = op
>             @name = name.tr '-', '_'
>             @cls = op.gtype.to_class
>             @prop = @cls.property name
>         end
> 
> ie. I have a prop member which keeps track of the gobject property
> during creation. After a GC, these pointers will sometimes become
> invalid and I get crashes on lines like:
> 
>             value = Argument::arrayize prop.value_type, value
> 
> as it tries to use the prop. The C backtraces look like:
> 
> /usr/lib/x86_64-linux-gnu/libruby-2.1.so.2.1(+0x18a4b7) [0x7f8df89794b7]
> /usr/lib/x86_64-linux-gnu/libruby-2.1.so.2.1(+0x18a583) [0x7f8df8979583]
> /usr/lib/x86_64-linux-gnu/libruby-2.1.so.2.1(+0x6db13)
> [0x7f8df885cb13] printf-parse.h:88
> /usr/lib/x86_64-linux-gnu/libruby-2.1.so.2.1(rb_bug+0xb3)
> [0x7f8df885d183] printf-parse.h:75
> ... etc
> 
> Please let me know if you need more information.

Could you show us a script that reproduces your problem?
We can't fix your problem without running the script on our
environment.


Thanks,
--
kou