BSOD in Part Library Editor When Zooming

[James Patchell]

This is a subtle bug. I run KiCad on 3 computers, and it only occurs on one of them
This is a Lenovo Computer with an I7 sixth gen running Windows 10 Home 64.
It has a GTX960 Video Card, Driver Version:376.33
KiCad Version:4.05 (Stable Version)
Both 32 and 64 bit versions.
Application:Eschema Part Library Editor.
How I make it blue screen:
Create a new part named TEST
Set Zoom Factor to :15.71
Draw a circle on the page.
Press F1 Key to Zoom to 22.00
Result:BSOD

If I do not draw anything on the screen, I can Zoom in and out to my hearts content with no problem.

If I draw a rectangle on the screen, I can also draw to my hearts content.

And just to be clear. I can Zoom In on circles as long as it is NOT from 15.71 to 22.00.

I hope this is good info.
-Jim
1-805-280-2297
<email address hidden>

Application: kicad
Version: 4.0.5 release build
wxWidgets: Version 3.0.2 (debug,wchar_t,compiler with C++ ABI 1009,GCC 5.2.0,wx containers,compatible with 2.8)
Platform: Windows 8 (build 9200), 64-bit edition, 64 bit, Little endian, wxMSW
Boost version: 1.59.0
         USE_WX_GRAPHICS_CONTEXT=OFF
         USE_WX_OVERLAY=OFF
         KICAD_SCRIPTING=ON
         KICAD_SCRIPTING_MODULES=ON
         KICAD_SCRIPTING_WXPYTHON=ON
         USE_FP_LIB_TABLE=HARD_CODED_ON
         BUILD_GITHUB_PLUGIN=ON

[jean-pierre charras (jp-charras)]

Usually, this kind of issue, is a system bug, not an application bug.
(driver bug, or other window bug)
It is unlikely the bug is in Kicad.
A bug in an application is always the crash of the application, never the crash of the OS.

[James Patchell (patchell)]

Normally, I would agree, and pursued that avenue, and it still has a
high probability of being the case, but what bothered me is that the
BSOD only occurs when zooming from 15.71 to 22.00. I asked myself how
the driver or system would know to only do a blue screen under that
condition. All other zoom factors while zooming in do not cause the
problem. And it is also when only redrawing a circle. All other shapes
cause no problems. And also, when using eschema, the problem does not
exist, even though, it is redrawing the same objects, so the problem
seems to be centered about the part editor for some reason. If it was
truly a driver problem, I would expect a similar behavior in this
software module as well.

But I understand the difficulty. It may be that the computer I have may
well be the only one that is doing this, for what ever reason. Since
the other two machines I have do not display this behavior at all. It
might be worth at least keeping this problem in mind, if nothing else.

My current work around is to just not go the the maximum zoom level in
the library part editor if I have circles in the part.

-Jim

On 1/18/2017 11:45 AM, jean-pierre charras wrote:
> Usually, this kind of issue, is a system bug, not an application bug.
> (driver bug, or other window bug)
> It is unlikely the bug is in Kicad.
> A bug in an application is always the crash of the application, never the crash of the OS.
>

[James Patchell (patchell)]

This problem has been resolved at my end. Not exactly sure what the real issue was, but re-installing Windows 10 took care of the problem.