bug report
[
Date Prev][
Date Next][
Thread Prev][
Thread Next]
[
Date Index]
[
Thread Index]
- Subject: bug report
- From: roberto@... (Roberto Ierusalimschy)
- Date: Mon, 5 Jun 2006 13:03:21 -0300
what: debug hooks may get wrong when mixed with coroutines
report: by Ivko Stanilov, 03/06/2006
example:
-- crashes Lua (by Ivko Stanilov)
function foo (a)
return coroutine.yield(2*a)
end
co = coroutine.create(function (a,b)
local r = foo(a+1)
local r, s = coroutine.yield(a+b, a-b)
return b, "end"
end)
debug.sethook(co, function() end, "lcr")
coroutine.resume(co, 100, 2000)
coroutine.resume(co, 100, 2000)
patch:
* ldo.c:
@@ -389,6 +389,7 @@
return;
}
else { /* resuming from previous yield */
+ L->status = 0;
if (!f_isLua(ci)) { /* `common' yield? */
/* finish interrupted execution of `OP_CALL' */
lua_assert(GET_OPCODE(*((ci-1)->savedpc - 1)) == OP_CALL ||
@@ -399,7 +400,6 @@
else /* yielded inside a hook: just continue its execution */
L->base = L->ci->base;
}
- L->status = 0;
luaV_execute(L, cast_int(L->ci - L->base_ci));
}
(This bug will be corrected in Lua 5.1.1.)
-- Roberto