Segmentation Fault when editing a Footprint

[Leandro Heck]

I am improving a footprint and I just received a segfault when deleting a line segment.

Last lines of the output running it with GDB:

Thread 1 "kicad" received signal SIGSEGV, Segmentation fault.
_int_malloc (av=av@entry=0x7ffff5b4dc40 <main_arena>, bytes=bytes@entry=64) at malloc.c:3675
3675 malloc.c: No such file or directory.
(gdb)

================

Application: kicad
Version: 6.0.0-rc1-unknown-ef6f7e9~84~ubuntu18.04.1, release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.58.0 OpenSSL/1.1.0g zlib/1.2.11 libidn2/2.0.4 libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3
Platform: Linux 4.15.0-25-generic x86_64, 64 bit, Little endian, wxGTK
Build Info:
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 2.24
    Boost: 1.65.1
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.58.0
    Compiler: GCC 7.3.0 with C++ ABI 1011

Build settings:
    USE_WX_GRAPHICS_CONTEXT=OFF
    USE_WX_OVERLAY=OFF
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_WXPYTHON=OFF
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_USE_OCC=OFF
    KICAD_SPICE=ON

[Nick Østergaard (nickoe)]

Please type 'bt' in gdb tp get the actual backtrace.

[Leandro Heck (leoheck)]

Footprints failing were generated by importing a .dxf file.

I'm working with grids now, so I was replacing multiples segment lines by a single one and round corners to clean the footprint. I am adding the footprint I am editing, attached here. Segments were already replaced using Kicad 5. But the segfault persists in version 6.

Here is the output of the (gdb) bt as requested.

Thread 1 "kicad" received signal SIGSEGV, Segmentation fault.
__GI___libc_free (mem=0x55ff59e35de0) at malloc.c:3103
3103 malloc.c: No such file or directory.
(gdb) bt
#0 0x00007ffff57f998d in __GI___libc_free (mem=0x55ff59e35de0) at malloc.c:3103
#1 0x00007fffe088ea52 in () at /usr/lib/kicad-nightly/bin/_pcbnew.kiface
#2 0x00007fffe0e15e1e in () at /usr/lib/kicad-nightly/bin/_pcbnew.kiface
#3 0x00007fffe0e1942d in () at /usr/lib/kicad-nightly/bin/_pcbnew.kiface
#4 0x00007fffe0e1ae90 in () at /usr/lib/kicad-nightly/bin/_pcbnew.kiface
#5 0x00007fffe0e1b153 in () at /usr/lib/kicad-nightly/bin/_pcbnew.kiface
#6 0x00007fffe0b4ee3e in () at /usr/lib/kicad-nightly/bin/_pcbnew.kiface
#7 0x00007fffe084a960 in () at /usr/lib/kicad-nightly/bin/_pcbnew.kiface
#8 0x00007fffe0e1c870 in () at /usr/lib/kicad-nightly/bin/_pcbnew.kiface
#9 0x00007fffe0e7ab41 in make_fcontext () at /usr/lib/kicad-nightly/bin/_pcbnew.kiface
#10 0x0000000000000000 in ()
(gdb)

[Seth Hillbrand (sethh)]

Can confirm this issue on master. Does not occur with 5.0.1

[Leandro Heck (leoheck)]

Agree, 5.0.1 is safe! I was using it after I found that version 6.0 had
this problem.

--
Leandro Heck

On Mon, Oct 1, 2018 at 10:30 AM Seth Hillbrand <email address hidden>
wrote:

> Can confirm this issue on master. Does not occur with 5.0.1
>
> ** Changed in: kicad
> Milestone: 6.0.0-rc1 => 5.1.0
>
> ** Changed in: kicad
> Status: New => Triaged
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1795281
>
> Title:
> Segmentation Fault when editing a Footprint
>
> Status in KiCad:
> Triaged
>
> Bug description:
> I am improving a footprint and I just received a segfault when
> deleting a line segment.
>
>
> Last lines of the output running it with GDB:
>
> Thread 1 "kicad" received signal SIGSEGV, Segmentation fault.
> _int_malloc (av=av@entry=0x7ffff5b4dc40 <main_arena>, bytes=bytes@entry=64)
> at malloc.c:3675
> 3675 malloc.c: No such file or directory.
> (gdb)
>
> ================
>
> Application: kicad
> Version: 6.0.0-rc1-unknown-ef6f7e9~84~ubuntu18.04.1, release build
> Libraries:
> wxWidgets 3.0.4
> libcurl/7.58.0 OpenSSL/1.1.0g zlib/1.2.11 libidn2/2.0.4
> libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3
> Platform: Linux 4.15.0-25-generic x86_64, 64 bit, Little endian, wxGTK
> Build Info:
> wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+
> 2.24
> Boost: 1.65.1
> OpenCASCADE Community Edition: 6.9.1
> Curl: 7.58.0
> Compiler: GCC 7.3.0 with C++ ABI 1011
>
> Build settings:
> USE_WX_GRAPHICS_CONTEXT=OFF
> USE_WX_OVERLAY=OFF
> KICAD_SCRIPTING=ON
> KICAD_SCRIPTING_MODULES=ON
> KICAD_SCRIPTING_WXPYTHON=OFF
> KICAD_SCRIPTING_ACTION_MENU=ON
> BUILD_GITHUB_PLUGIN=ON
> KICAD_USE_OCE=ON
> KICAD_USE_OCC=OFF
> KICAD_SPICE=ON
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/kicad/+bug/1795281/+subscriptions
>

[Jeff Young (jeyjey)]

@Seth, is this GTK-specific (or footprint-specific)? I can't reproduce it on OSX (on master).

[Seth Hillbrand (sethh)]

I'll have a look

[Seth Hillbrand (sethh)]

Hmmm, does not reproduce anymore. Maybe your recent fix got it?

@Leandro- can you confirm it is fixed for you as well?

[Jeff Young (jeyjey)]

D'oh. Yes, this is the reading-freed-memory bug. Sorry I didn't recognize it earlier.

[Leandro Heck (leoheck)]

I couldn't even answer it. You were fast, awesome guys.

On Mon, Oct 1, 2018, 20:20 Seth Hillbrand <email address hidden>
wrote:

> ** Changed in: kicad
> Assignee: Seth Hillbrand (sethh) => (unassigned)
>
> ** Changed in: kicad
> Status: Triaged => Fix Committed
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1795281
>
> Title:
> Segmentation Fault when editing a Footprint
>
> Status in KiCad:
> Fix Committed
>
> Bug description:
> I am improving a footprint and I just received a segfault when
> deleting a line segment.
>
>
> Last lines of the output running it with GDB:
>
> Thread 1 "kicad" received signal SIGSEGV, Segmentation fault.
> _int_malloc (av=av@entry=0x7ffff5b4dc40 <main_arena>, bytes=bytes@entry=64)
> at malloc.c:3675
> 3675 malloc.c: No such file or directory.
> (gdb)
>
> ================
>
> Application: kicad
> Version: 6.0.0-rc1-unknown-ef6f7e9~84~ubuntu18.04.1, release build
> Libraries:
> wxWidgets 3.0.4
> libcurl/7.58.0 OpenSSL/1.1.0g zlib/1.2.11 libidn2/2.0.4
> libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3
> Platform: Linux 4.15.0-25-generic x86_64, 64 bit, Little endian, wxGTK
> Build Info:
> wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+
> 2.24
> Boost: 1.65.1
> OpenCASCADE Community Edition: 6.9.1
> Curl: 7.58.0
> Compiler: GCC 7.3.0 with C++ ABI 1011
>
> Build settings:
> USE_WX_GRAPHICS_CONTEXT=OFF
> USE_WX_OVERLAY=OFF
> KICAD_SCRIPTING=ON
> KICAD_SCRIPTING_MODULES=ON
> KICAD_SCRIPTING_WXPYTHON=OFF
> KICAD_SCRIPTING_ACTION_MENU=ON
> BUILD_GITHUB_PLUGIN=ON
> KICAD_USE_OCE=ON
> KICAD_USE_OCC=OFF
> KICAD_SPICE=ON
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/kicad/+bug/1795281/+subscriptions
>