Gerber Viewer crash to open gerberjob

[Hildo Guillardi Júnior]

The Gerber Viewer crash and close and I try to open a Gerber job file in the graphical modes Modern (Fallback and Accelerated). In the Legacy graphics works fine.

My KiCad version is 201802041432+c7bc154~61~ubuntu16.04.1 and this error happens in different machines (with the same OS, just tested on Ubuntu).

To reproduce the error I used the Gerber attached on the issue https://bugs.launchpad.net/kicad/+bug/1745203.

On terminal, I got this output:

(gerbview:10172): GLib-GObject-CRITICAL **: g_closure_unref: assertion 'closure->ref_count > 0' failed
**
GLib-GObject:ERROR:/build/glib2.0-prJhLS/glib2.0-2.48.2/./gobject/gsignal.c:693:handler_unref_R: assertion failed: (hlist->tail_after == handler)

[Jon Evans (craftyjon)]

If you have gdb installed, you can use it to get a backtrace

something like:
$ gdb gerbview
(gdb) run
... wait for crash
(gdb) backtrace

See also:
https://senarvi.github.io/2016/07/05/stack-trace-with-gdb

[Hildo Guillardi Júnior (hildogjr)]

@Evans, did it and:
1) Running gerbview from Linux terminal (or form gdb doing `gdb gerbview`) the problem is the already reported bug #1745203 (not matter the size of the Gerber files);
2) This crash here is happening open "gerber job" using the Modern canvas (Fallback and Accelerated) when I open GerbView from KiCad;
3) The bug (2) not happen when I try to use (1).

So, I didn't got a useful log, because running `gdb kicad` I don't get a software crash, just a GerbView unexpected exit.

Neither of theses bug happen using Legacy canvas.

[Jon Evans (craftyjon)]

Maybe this was same bug as 1746770 which just got a fix committed, so once there is a new nightly available, please see if your crash is also fixed.

[Hildo Guillardi Júnior (hildogjr)]

Yes, @Evans.
Fixed in the version 201802062243+a35cc44~61~ubuntu16.04.1
It is not crash anymore, just freezing yet (bug #1745203). But this report can be closed.