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yaml --- r: 262398 b: refs/heads/master c: cc34321 h: refs/heads/master v: v3
git-mirror · Aug 3, 2011 · 2c1b477 · 2c1b477
1 parent 5fb3a78
commit 2c1b477
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 391c62feb1798b6d31bd88076eae649b091ad8bf
+refs/heads/master: cc34321d5806b7919531a1d951bb6deb62c163c9
diff --git a/trunk/arch/s390/kernel/smp.c b/trunk/arch/s390/kernel/smp.c
@@ -473,7 +473,12 @@ int __cpuinit start_secondary(void *cpuvoid)
 	S390_lowcore.restart_psw.addr =
 		PSW_ADDR_AMODE | (unsigned long) psw_restart_int_handler;
 	__ctl_set_bit(0, 28); /* Enable lowcore protection */
-	/* Switch on interrupts */
+	/*
+	 * Wait until the cpu which brought this one up marked it
+	 * active before enabling interrupts.
+	 */
+	while (!cpumask_test_cpu(smp_processor_id(), cpu_active_mask))
+		cpu_relax();
 	local_irq_enable();
 	/* cpu_idle will call schedule for us */
 	cpu_idle();