[cairo] static array allocation caused a segfault
dave at dajobe.org
Fri Nov 9 20:25:04 PST 2007
> The following program caused repeatable segfaults on my system.
> It's a Debian unstable, up-to-date, running Linux 2.6.22-2-686.
> I'm not an experienced programmer. But the program compiles
> and it's pretty small so I can't find if it's my programming error or else.
> Please let me know! Thank you! The unused variable thing is because I
> extracted it from a program I'm working on...
> gcc -Wall -Wextra -o cairo-bug cairo-bug.c \
> `pkg-config --cflags --libs cairo-png`
> #include <cairo.h>
> int main(void)
> // if we remove the allocation, program runs and $? is 0.
> // however, program segfaults if the next line is in.
> double rgb[805*805*3];
> cairo_surface_t *surface = cairo_image_surface_create(
> return 0;
Probably something to do with allocating a 15Mbyte array on the stack.
805*805*3*8 = 15552600
Not related to Cairo.
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