segfault when defining width of more than 99 about p2pvc HOT 11 CLOSED

Whoops didn't mean to close that. This is surprising because the default width is 100. I've been testing -d 170x50 pretty rigorously, perhaps you could give that a go?

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170x50 segfaults as well. should i recompile with debug symbols?

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yea that'd be useful. I can't seem to replicate the error. what OS/version of open cv are you using?

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Height more than 99 chars works well for me, even 1000 works, but height more than 433 segfaults.
OS X 10.9.5, opencv 2.4.10.1

UPDATE: It doesn’t depend on exact value of height, or width, but both of them. I’m on the meeting, so I can’t provide more detail now.

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arch linux (current), opencv 2.4.10-2

[Thread 0xaa84fb40 (LWP 22597) exited]
[New Thread 0xaa84fb40 (LWP 22598)]
[New Thread 0xa5efeb40 (LWP 22599)]
[New Thread 0xa54ffb40 (LWP 22600)]
[New Thread 0xa4cfeb40 (LWP 22601)]
[New Thread 0xa04fcb40 (LWP 22602)]
�[39;49m
Program received signal SIGABRT, Aborted.
0xb7fdcbcc in __kernel_vsyscall ()
(gdb) bt full
#0 0xb7fdcbcc in __kernel_vsyscall ()
No symbol table info available.
#1 0xb77f7ca7 in raise () from /usr/lib/libc.so.6
No symbol table info available.
#2 0xb77f92e9 in abort () from /usr/lib/libc.so.6
No symbol table info available.
#3 0xb7485de5 in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/libstdc++.so.6
No symbol table info available.
#4 0xb74838e3 in __cxxabiv1::__terminate(void (*)()) () from /usr/lib/libstdc++.so.6
No symbol table info available.
#5 0xb748395d in std::terminate() () from /usr/lib/libstdc++.so.6
No symbol table info available.
#6 0xb7483c21 in __cxa_throw () from /usr/lib/libstdc++.so.6
No symbol table info available.
#7 0xb7e28e8c in cv::error(cv::Exception const&) () from /usr/lib/libopencv_core.so.2.4
No symbol table info available.
#8 0xb7ab3345 in cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int) () from /usr/lib/libopencv_imgproc.so.2.4
No symbol table info available.
#9 0xb7abf1ba in cvResize () from /usr/lib/libopencv_imgproc.so.2.4
No symbol table info available.
#10 0x0804eed2 in start_video ()
No symbol table info available.
#11 0x08049e11 in main ()
No symbol table info available.

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possibly better backtrace:

Starting program: /usr/bin/p2pvc 127.0.0.1 -v -b -d 120x130
warning: Could not load shared library symbols for linux-gate.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0xb0d99b40 (LWP 2690)]
[New Thread 0xb0398b40 (LWP 2691)]
�[1;82r�[0;10m�[4l�[?7h�[?25l�[?1c[New Thread 0xaf9ffb40 (LWP 2692)]
[New Thread 0xaa871b40 (LWP 2693)]
[Thread 0xaa871b40 (LWP 2693) exited]
[New Thread 0xaa871b40 (LWP 2694)]
[Thread 0xaa871b40 (LWP 2694) exited]
[New Thread 0xaa871b40 (LWP 2695)]
[Thread 0xaa871b40 (LWP 2695) exited]
[New Thread 0xaa871b40 (LWP 2696)]
[Thread 0xaa871b40 (LWP 2696) exited]
[New Thread 0xaa871b40 (LWP 2697)]
[New Thread 0xa5efeb40 (LWP 2698)]
[New Thread 0xa54ffb40 (LWP 2699)]
[New Thread 0xa4cfeb40 (LWP 2700)]
[New Thread 0xa44fdb40 (LWP 2701)]
�[39;49m
Program received signal SIGABRT, Aborted.
0xb7fdcbcc in __kernel_vsyscall ()
(gdb) bt
#0 0xb7fdcbcc in __kernel_vsyscall ()
#1 0xb77f7ca7 in raise () from /usr/lib/libc.so.6
#2 0xb77f92e9 in abort () from /usr/lib/libc.so.6
#3 0xb7485de5 in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/libstdc++.so.6
#4 0xb74838e3 in __cxxabiv1::__terminate(void (_)()) () from /usr/lib/libstdc++.so.6
#5 0xb748395d in std::terminate() () from /usr/lib/libstdc++.so.6
#6 0xb7483c21 in __cxa_throw () from /usr/lib/libstdc++.so.6
#7 0xb7e28e8c in cv::error(cv::Exception const&) () from /usr/lib/libopencv_core.so.2.4
#8 0xb7ab3345 in cv::resize(cv::InputArray const&, cv::OutputArray const&, cv::Size, double, double, int) () from /usr/lib/libopencv_imgproc.so.2.4
#9 0xb7abf1ba in cvResize () from /usr/lib/libopencv_imgproc.so.2.4
#10 0x0804f208 in start_video (peer=0xbffffbb9 "127.0.0.1", port=0x805275b "55556", vopt=0xbffff934) at src/video.c:109
#11 0x08049f16 in main (argc=6, argv=0xbffffa34) at src/p2pvc.c:168
(gdb) bt full
#0 0xb7fdcbcc in __kernel_vsyscall ()
No symbol table info available.
#1 0xb77f7ca7 in raise () from /usr/lib/libc.so.6
No symbol table info available.
#2 0xb77f92e9 in abort () from /usr/lib/libc.so.6
No symbol table info available.
#3 0xb7485de5 in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/libstdc++.so.6
No symbol table info available.
#4 0xb74838e3 in __cxxabiv1::__terminate(void ()()) () from /usr/lib/libstdc++.so.6
No symbol table info available.
#5 0xb748395d in std::terminate() () from /usr/lib/libstdc++.so.6
No symbol table info available.
#6 0xb7483c21 in __cxa_throw () from /usr/lib/libstdc++.so.6
No symbol table info available.
#7 0xb7e28e8c in cv::error(cv::Exception const&) () from /usr/lib/libopencv_core.so.2.4
No symbol table info available.
#8 0xb7ab3345 in cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int) () from /usr/lib/libopencv_imgproc.so.2.4
No symbol table info available.
#9 0xb7abf1ba in cvResize () from /usr/lib/libopencv_imgproc.so.2.4
No symbol table info available.
#10 0x0804f208 in start_video (peer=0xbffffbb9 "127.0.0.1", port=0x805275b "55556", vopt=0xbffff934) at src/video.c:109
line_index =
dopt = {intensity_threshold = 0, saturation = -1, ascii_values = 0x0, monochrome = 0, r = 0 '\000', g = 0 '\000', b = 0 '\000'}
thr = 2946497344
color_img =
resize_img = 0x808db70
edge = 0x808dc10
line_buffer = 0xbffff710 ""
tim = {tv_sec = 0, tv_nsec = 49999999}
actual_tim = {tv_sec = 0, tv_nsec = 8388608}
kernel = 7
#11 0x08049f16 in main (argc=6, argv=0xbffffa34) at src/p2pvc.c:168
thr = 2956561216
netopts = {ipaddr = 0xbffffbb9 "127.0.0.1", port = 0x8052761 "55555"}
peer =
audio_port =
video_port =
vopt = {width = 120, height = 0, depth = 0, disp_bandwidth = 1, render_type = 0, refresh_rate = 20, intensity_threshold = 0, saturation = -1, monochrome = 0, r = 0 '\000', g = 0 '\000',
b = 0 '\000', ascii_values = 0x0, edge_filter = 0, edge_lower = 0, edge_upper = 0}
spawn_video =
print_error =
c =
width = 120
height = 0
(gdb) quit
A debugging session is active.

Inferior 1 [process 2686] will be killed.

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what was your command line input? -d 120x0 ?

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127.0.0.1 -v -b -d 120x130

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same with colon as a delimiter. i can see height = 0 in backtrace

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yup, that code actually broke on some versions of gcc. swapped it out with better code. pull the latest it should be fixed. removed the : option for simplicity

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thank you, that did it. i can now safely go with 205x82

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