LuaJIT segfault
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- Subject: LuaJIT segfault
- From: Pierre Chapuis <catwell@...>
- Date: 2011年11月08日 11:24:37 +0100
LuaJIT segfaults at GC step when running this snippet:
local ffi = require "ffi"
local get_str = function()
local f = io.popen("dd if=/dev/urandom bs=1 count=10000")
local s = f:read("*all")
f:close()
return s
end
local convert = function(str)
local l = #str
local s = ffi.new("char[?]",l,str) // <=
return ffi.string(s,l)
end
for i=1,200 do
print(i)
convert(get_str())
end
If I replace the line marked "<=" by this:
local s = ffi.new("char[?]",l+1,str)
the problem goes away.
Is that behavior expected? It looks like a bug to me.
--
Pierre Chapuis