blob: 5386f128a131dfa50852e6fc5869700d0fe09d17 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
C R+poonceonces
(*
* Result: Sometimes
*
* This is the unordered (thus lacking smp_mb()) version of one of the
* classic counterintuitive litmus tests that illustrates the effects of
* store propagation delays.
*)
{}
P0(int *x, int *y)
{
WRITE_ONCE(*x, 1);
WRITE_ONCE(*y, 1);
}
P1(int *x, int *y)
{
int r0;
WRITE_ONCE(*y, 2);
r0 = READ_ONCE(*x);
}
exists (y=2 /\ 1:r0=0)
|
