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List: kstars-devel
Subject: Re: Segfault on command line generation
From: Jasem Mutlaq <mutlaqja () ikarustech ! com>
Date: 2020-07-04 10:05:08
Message-ID: CAE0bU5=N9ujdJsAE40QvzZzAODn20-eUtY__FgQJsNWnJko0Pw () mail ! gmail ! com
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There were a couple of crash fixes recently. Please use KStars nightly
release or compile from GIT and retry again.
--
Best Regards,
Jasem Mutlaq
On Fri, Jul 3, 2020 at 11:37 PM Umair Khan <ukhan@pdx.edu> wrote:
> Hello, thanks for the response. The command I am using is: kstars --dump
> --filename kstars.png --height 640 --width 480. I got the command from this
> page in the handbook:
> https://docs.kde.org/trunk5/en/extragear-edu/kstars/dumpmode.html
> I also just ran it with gdb. Below is the backtrace.
>
> ...
> Loading satellites
> [New Thread 0x7fffb7659700 (LWP 16238)]
> QPaintDevice: Cannot destroy paint device that is being painted
> Thread 1 "kstars" received signal SIGSEGV, Segmentation fault.
> 0x00007ffff30da7a6 in QPainter::end() () from
> /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
> (gdb) bt
> #0 0x00007ffff30da7a6 in QPainter::end() () at
> /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
> #1 0x00007ffff30db3f8 in QPainter::~QPainter() () at
> /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
> #2 0x0000555555b2ad28 in SkyLabeler::~SkyLabeler() (this=0x555556a94000,
> __in_chrg=<optimized out>) at ./kstars/skycomponents/skylabeler.cpp:111
> #3 0x0000555555679f01 in
> std::default_delete<SkyLabeler>::operator()(SkyLabeler*) const
> (this=<optimized out>, __ptr=0x555556a94000) at
> /usr/include/c++/7/bits/unique_ptr.h:78
> #4 0x0000555555679f01 in std::unique_ptr<SkyLabeler,
> std::default_delete<SkyLabeler> >::~unique_ptr() (this=0x5555569549b8,
> __in_chrg=<optimized out>) at /usr/include/c++/7/bits/unique_ptr.h:263
> #5 0x0000555555679f01 in SkyMapComposite::~SkyMapComposite()
> (this=0x5555569548c0, __in_chrg=<optimized out>) at
> ./kstars/skycomponents/skymapcomposite.h:84
> #6 0x000055555567e2c8 in SkyMapComposite::~SkyMapComposite()
> (this=0x5555569548c0, __in_chrg=<optimized out>) at
> ./kstars/skycomponents/skymapcomposite.h:84
> #7 0x000055555567e2c8 in
> std::default_delete<SkyMapComposite>::operator()(SkyMapComposite*) const
> (this=<optimized out>, __ptr=0x5555569548c0) at
> /usr/include/c++/7/bits/unique_ptr.h:78
> #8 0x000055555567e2c8 in std::unique_ptr<SkyMapComposite,
> std::default_delete<SkyMapComposite> >::~unique_ptr() (this=0x55555691ae18,
> __in_chrg=<optimized out>) at /usr/include/c++/7/bits/unique_ptr.h:263
> #9 0x000055555567e2c8 in KStarsData::~KStarsData() (this=0x55555691ae00,
> __in_chrg=<optimized out>) at ./kstars/kstarsdata.cpp:119
> #10 0x000055555567e4bd in KStarsData::~KStarsData() (this=0x55555691ae00,
> __in_chrg=<optimized out>) at ./kstars/kstarsdata.cpp:130
> #11 0x000055555562c9a5 in main(int, char**) (argc=<optimized out>,
> argv=<optimized out>) at ./kstars/main.cpp:309
>
> Thank you for the workaround, I will look into that as well.
>
> Best,
> Umair
>
> On Jul 3 2020, at 1:25 pm, Akarsh Simha <akarshsimha@gmail.com> wrote:
>
> Hi Umair
>
> I don't see the instructions you refer to. Could you give me the procedure
> you used? I'm not very familiar with valgrind either, but a backtrace from
> running under gdb should suffice. If you can tell me how you're invoking it
> from the command line, I'll look into it and see if I can reproduce the
> crash.
>
> Also: a workaround is to get the charts from the DBus interface when
> KStars is fully up and running.
>
> Regards
> Akarsh
>
>
> On Fri, Jul 3, 2020 at 10:19 Umair Khan <ukhan@pdx.edu> wrote:
>
> Hello,
>
> My name is Umair Khan, and I'm a student at Portland State University in
> Oregon. I'm not sure if this mailing list is a place to seek user support,
> so apologies if this is not the correct way to ask questions.
>
> I'm trying to use KStars to generate images of the night sky from the
> command line, as per the instructions listed here. However, when I attempt
> to do so, the program segfaults with no error messages, and I'm not quite
> sure if or how this issue can be fixed. I was hoping someone here could
> provide some insight or a solution.
>
> The GUI, on the other hand, works completely fine (at least as far as I
> can tell). Below are the details for the hardware I'm running KStars on:
>
> - OS: Ubuntu 18.04.4
> - Kernel: 4.15.0-108-generic
> - DE: GNOME 3.28.4
> - CPU: Intel Core i7-6600u
>
> In addition, I have attached two text files to this email containing shell
> input/output. One is for the plain command (default.txt), and another is a
> debug run using valgrind (valgrind.txt). Valgrind does appear to show
> several errors, but I am not quite sure how to interpret them or go about
> fixing them. Any help would be much appreciated.
>
> Thanks a lot for your consideration!
>
> Best,
> Umair
>
>
[Attachment #3 (text/html)]
<div dir="ltr">There were a couple of crash fixes recently. Please use KStars nightly release or compile \
from GIT and retry again.<div><br clear="all"><div><div dir="ltr" class="gmail_signature" \
data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>--</div><div>Best \
Regards,<br>Jasem Mutlaq<br></div><div><br></div></div></div></div></div></div><br></div></div><br><div \
class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jul 3, 2020 at 11:37 PM Umair Khan <<a \
href="mailto:ukhan@pdx.edu">ukhan@pdx.edu</a>> wrote:<br></div><blockquote class="gmail_quote" \
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>Hello, \
thanks for the response. The command I am using is: kstars --dump --filename kstars.png --height 640 \
--width 480. I got the command from this page in the handbook: <a \
href="https://docs.kde.org/trunk5/en/extragear-edu/kstars/dumpmode.html" \
title="https://docs.kde.org/trunk5/en/extragear-edu/kstars/dumpmode.html" \
target="_blank">https://docs.kde.org/trunk5/en/extragear-edu/kstars/dumpmode.html</a><br></div><div>I \
also just ran it with gdb. Below is the backtrace.</div><br><div>...</div><div>Loading \
satellites</div><div>[New Thread 0x7fffb7659700 (LWP 16238)]</div><div>QPaintDevice: Cannot destroy paint \
device that is being painted</div><div>Thread 1 "kstars" received signal SIGSEGV, Segmentation \
fault.</div><div>0x00007ffff30da7a6 in QPainter::end() () from \
/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5</div><div>(gdb) bt</div><div>#0 0x00007ffff30da7a6 in \
QPainter::end() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5</div><div>#1 0x00007ffff30db3f8 in \
QPainter::~QPainter() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5</div><div>#2 0x0000555555b2ad28 in \
SkyLabeler::~SkyLabeler() (this=0x555556a94000, __in_chrg=<optimized out>) at \
./kstars/skycomponents/skylabeler.cpp:111</div><div>#3 0x0000555555679f01 in \
std::default_delete<SkyLabeler>::operator()(SkyLabeler*) const (this=<optimized out>, \
__ptr=0x555556a94000) at /usr/include/c++/7/bits/unique_ptr.h:78</div><div>#4 0x0000555555679f01 in \
std::unique_ptr<SkyLabeler, std::default_delete<SkyLabeler> >::~unique_ptr() \
(this=0x5555569549b8, __in_chrg=<optimized out>) at \
/usr/include/c++/7/bits/unique_ptr.h:263</div><div>#5 0x0000555555679f01 in \
SkyMapComposite::~SkyMapComposite() (this=0x5555569548c0, __in_chrg=<optimized out>) at \
./kstars/skycomponents/skymapcomposite.h:84</div><div>#6 0x000055555567e2c8 in \
SkyMapComposite::~SkyMapComposite() (this=0x5555569548c0, __in_chrg=<optimized out>) at \
./kstars/skycomponents/skymapcomposite.h:84</div><div>#7 0x000055555567e2c8 in \
std::default_delete<SkyMapComposite>::operator()(SkyMapComposite*) const (this=<optimized \
out>, __ptr=0x5555569548c0) at /usr/include/c++/7/bits/unique_ptr.h:78</div><div>#8 \
0x000055555567e2c8 in std::unique_ptr<SkyMapComposite, std::default_delete<SkyMapComposite> \
>::~unique_ptr() (this=0x55555691ae18, __in_chrg=<optimized out>) at \
/usr/include/c++/7/bits/unique_ptr.h:263</div><div>#9 0x000055555567e2c8 in KStarsData::~KStarsData() \
(this=0x55555691ae00, __in_chrg=<optimized out>) at ./kstars/kstarsdata.cpp:119</div><div>#10 \
0x000055555567e4bd in KStarsData::~KStarsData() (this=0x55555691ae00, __in_chrg=<optimized out>) at \
./kstars/kstarsdata.cpp:130</div><div>#11 0x000055555562c9a5 in main(int, char**) (argc=<optimized \
out>, argv=<optimized out>) at ./kstars/main.cpp:309</div><br><div>Thank you for the workaround, \
I will look into that as well.</div><br><div>Best,</div><div>Umair</div><br><div>On Jul 3 2020, at 1:25 \
pm, Akarsh Simha <<a href="mailto:akarshsimha@gmail.com" target="_blank">akarshsimha@gmail.com</a>> \
wrote:</div><blockquote><div><div>Hi Umair</div><div><br></div><div>I don't see the instructions you \
refer to. Could you give me the procedure you used? I'm not very familiar with valgrind either, but a \
backtrace from running under gdb should suffice. If you can tell me how you're invoking it from the \
command line, I'll look into it and see if I can reproduce the crash.</div><div><br></div><div>Also: a \
workaround is to get the charts from the DBus interface when KStars is fully up and \
running.</div><div><br></div><div>Regards</div><div>Akarsh </div><div><br></div></div><div><br><div \
class="gmail_quote"><div class="gmail_attr"><div>On Fri, Jul 3, 2020 at 10:19 Umair Khan <<a \
href="mailto:ukhan@pdx.edu" title="mailto:ukhan@pdx.edu" target="_blank">ukhan@pdx.edu</a>> \
wrote:</div></div><blockquote><div>Hello,</div><br><div>My name is Umair Khan, and I'm a student at \
Portland State University in Oregon. I'm not sure if this mailing list is a place to seek user \
support, so apologies if this is not the correct way to ask questions.</div><br><div>I'm trying to \
use KStars to generate images of the night sky from the command line, as per the instructions listed \
here. However, when I attempt to do so, the program segfaults with no error messages, and I'm not \
quite sure if or how this issue can be fixed. I was hoping someone here could provide some insight or a \
solution.</div><br><div>The GUI, on the other hand, works completely fine (at least as far as I can \
tell). Below are the details for the hardware I'm running KStars on:</div><ul><li><div>OS: Ubuntu \
18.04.4</div></li><li><div>Kernel: 4.15.0-108-generic</div></li><li><div>DE: GNOME \
3.28.4</div></li><li><div>CPU: Intel Core i7-6600u</div></li></ul><div>In addition, I have attached two \
text files to this email containing shell input/output. One is for the plain command (default.txt), and \
another is a debug run using valgrind (valgrind.txt). Valgrind does appear to show several errors, but I \
am not quite sure how to interpret them or go about fixing them. Any help would be much \
appreciated.</div><br><div>Thanks a lot for your \
consideration!</div><br><div>Best,</div><div>Umair</div></blockquote></div></div></blockquote></blockquote></div>
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