[Dot] Crash in dot when using "corner" ports.
Ported Issue from Mantis Original ID: 1367 Reported By: Aleksey Nogin
SEVERITY: CRITICAL Submitted: 2008-07-28 22:49:51
OS: X86-LINUX-RHEL 5.2
VERSION: 2.21.20080727.0445
DESCRIPTION
The following crashes dot.
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208367424 (LWP 27778)]
makeFlatEnd (sp=0xbfdfa8b8, P=0x85c9348, n=0x8599b58, e=0x8599cd0, endp=0xbfdf5e5c, isBegin=0 '\0')
at dotsplines.c:982
982 b.UR.y = endp->boxes[endp->boxn - 1].UR.y;
(gdb) bt
#0 makeFlatEnd (sp=0xbfdfa8b8, P=0x85c9348, n=0x8599b58, e=0x8599cd0, endp=0xbfdf5e5c, isBegin=0 '\0')
at dotsplines.c:982
#1 0x00ed71de in make_flat_edge (sp=0xbfdfa8b8, P=0x85c9348, edges=0x85cac00, ind=1, cnt=1, et=8)
at dotsplines.c:1217
#2 0x00ed5c52 in _dot_splines (g=0x85986f8, normalize=1) at dotsplines.c:393
#3 0x00eca9d6 in dot_layout (g=0x85986f8) at dotinit.c:212
#4 0x0030be18 in gvLayoutJobs (gvc=0x858d428, g=0x85986f8) at gvlayout.c:69
#5 0x08048992 in main (argc=2, argv=Cannot access memory at address 0x8e
) at dot.c:180
#6 0x00ae6dec in __libc_start_main () from /lib/libc.so.6
#7 0x08048801 in _start ()
strict digraph G {
edge [constraint = false];
Node1 -> Node2; Node1:sw -> Node3:ne;
};
ADDITIONAL INFORMATION
If I use "s" in place of "sw" or "n" in place of "ne", it does not crash. This might be related to bugs 1370, 1372.
[erg] Works okay in 2.12.