[Geany-Users] Create custom lexer: segmentation fault

[Lex Trotman]

Your two backtraces show different things, the -old one indeed shows a
crash during document open, inside scintilla but to do with closing
the blank page in the notebook before opening your file.  The crash is
in libgail which (IIUC) is used in ATK the accessibility technology
for which there were some new additions to scintilla recently.

The -new backtrace shows a crash while shutting down Geany, not
opening a file, but again in libgail while closing a notebook tab.

These may not be related to your lexer, you are just "lucky" to manage
to cause the problem to occur.  Hopefully the ATK expert will be in
touch if thats the cause since (presumably) this doesn't happen with
his system.

Cheers
Lex

PS I'm using the same system as you, but running a GTK3 build of Geany.

On 18 December 2016 at 18:36, Fardet Tanguy <fardet.tanguy at laposte.net> wrote:
> Hi Matthew,
>
> thanks for your reply!
>
> I did some modifications on the lexer since yesterday, so I ran gdb on both
> commits just to show that it's not related.
>
> As a note, when I open geany with existing pages in the geany.conf file, the
> pages are correctly loaded at startup, it seems to be only the process
> following the popup window for open (after I chose the file and clicked
> "open") which triggers the segfault, as well as exiting geany.
>
> I'm using Cinnamon 3.07 on LinuxMint 18 64-bit, with kernel 4.4.0-53 and GTK
> 2.24.30, GLib 2.48.1
> Hope this helps,
>
> Best.
> TF
>
>
>
> Le 18/12/2016 à 04:24, Matthew Brush a écrit :
>>
>> On 2016-12-17 01:14 PM, Fardet Tanguy wrote:
>>>
>>> [...]
>>>
>>> Could someone tell me where the problem comes from?
>>> I first thought I forgot to tell geany something about the lexer, but
>>> since the crash occurs for any filetype, I'm no longer sure this is the
>>> problem.
>>> An since my knowledge in C++ development is limited, I don't know how I
>>> could build geany in debug mode to track the problem...
>>>
>>
>> Hi,
>>
>> Can you give a GDB backtrace as described here under "Getting a
>> backtrace":
>>
>> http://www.geany.org/Support/Bugs
>>
>> And to make sure  `https://github.com/Silmathoron/geany` is up to date
>> with the debugged build.
>>
>> Regards,
>> Matthew Brush
>
>
>
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