On 12/04/2016 12:26, Stephen Wilkinson wrote:
Following a recent Cygwin update, I get segmentation faults when I try to plot graphs in Octave. Creating the
figure window works (i.e. issuing the command "figure" doesn't cause the crash, it is only when
plotting within the figure that I get a crash). I use the Octave command "sombrero" to test the
plotting of data, but even simpler commands ("plot(1:10,1:10);") cause the crash. The crash occurs
whether using the fltk or qt graphics toolkit.
I'm using:
Octave: GNU Octave, version 4.0.1
Cygwin: CYGWIN_NT-6.1-WOW OEM-9D7L362 2.5.0(0.297/5/3) 2016-04-11 09:55 i686
Cygwin
The command I issue in Octave is:
sombrero
And I get this error message:
panic: Segmentation fault -- stopping myself...
attempting to save variables to 'octave-workspace'...
save to 'octave-workspace' complete
I ran strace to try to debug the problem. The strace output is too large (MB) to attach, but
comparing strace for a normal termination of octave (run octave, create a figure but without
plotting) and a segmentation fault termination of octave (run octave, issue command
"sombrero"), I see that a segmentation fault causes "threads exited with status
0xc0000005". However I don't know how to debug this any further.
I attach the output of cygcheck -s -v -r
Any suggestions on how to debug this further or how to fix it would be very
welcome! I have tried downgrading octave and qt but to no avail.
Regards,
Steve
confirmed for 32bit only. 64 bit version seems to work normally.
As workaround "graphics_toolkit gnuplot" does not crash, for what I see.
Did you ever had any problem on 4.0.0 ?
Regards
Marco
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
