Hi,
I have a vi test case that reliably crashes.
It consists of two files. To crash in a 80x24 terminal, the files should
be as follows:
foo.txt should be 27 lines long. The fifth line should consist of 81
characters, and the others 80 or below.
bar.txt should be 5 lines or more, each line of less than 80 characters.
Example foo.txt:
a
b
c
d
123456789012345678901234567890123456789012345678901234567890123456789012345678901
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
A
Example bar.txt:
1
2
3
4
5
6
Start with "vi foo.txt bar.txt".
In foo, hit ^F once, then :n to switch files.
In bar, line 6 is not visible (bug). Hitting ^F here will crash vi.
This might be related to the fact that after the first ^F, foo's long
line is split, with only the second half shown on screen. The crash
occurs when trying to return the logical column of the cursor:
#0 0x00000733ac5cbda6 in vs_column (sp=0x73623e317b0, colp=0x73623e31850)
at /usr/src/usr.bin/vi/build/../vi/vs_relative.c:40
#1 0x00000733ac5c5c15 in vi (spp=0x7f7ffffbfdc0)
at /usr/src/usr.bin/vi/build/../vi/vi.c:110
#2 0x00000733ac5ae0b4 in editor (gp=0x7363966e5f0, argc=<optimized out>,
argv=<optimized out>) at /usr/src/usr.bin/vi/build/../common/main.c:427
#3 0x00000733ac58e6ce in main (argc=3, argv=0x7f7ffffc0008)
at /usr/src/usr.bin/vi/build/../cl/cl_main.c:93
--
Anthony J. Bentley
