Changes in libcfa/src/concurrency/kernel.cfa [dab09ad:f2384c9a]

File:

• libcfa/src/concurrency/kernel.cfa (modified) (2 diffs)

libcfa/src/concurrency/kernel.cfa

@@ -103 +103 @@
         // Do it here
         kernelTLS.rand_seed ^= rdtscl();
+        kernelTLS.ready_rng.fwd_seed = 25214903917_l64u * (rdtscl() ^ (uintptr_t)&runner);
+        __tls_rand_advance_bck();
 
         processor * this = runner.proc;
@@ -532 +534 @@
                 unsigned total   = this.total;
                 processor * proc = &this.list`first;
-                // Thread fence is unnecessary, but gcc-8 and older incorrectly reorder code without it
-                __atomic_thread_fence(__ATOMIC_SEQ_CST);
+                // Compiler fence is unnecessary, but gcc-8 and older incorrectly reorder code without it
+                asm volatile("": : :"memory");
                 if(l != __atomic_load_n(&this.lock, __ATOMIC_SEQ_CST)) { Pause(); continue; }
                 return [idle, total, proc];