---

yaml --- r: 147456 b: refs/heads/master c: 1c80f4b h: refs/heads/master v: v3
git-mirror · May 15, 2009 · b817492 · b817492
1 parent cada1d8
commit b817492
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a4016a79fcbd139e7378944c0d86a39fdbc70ecc
+refs/heads/master: 1c80f4b598d9b075a2a0be694e28be93a6702bcc
diff --git a/trunk/arch/x86/kernel/cpu/perf_counter.c b/trunk/arch/x86/kernel/cpu/perf_counter.c
@@ -473,6 +473,11 @@ x86_perf_counter_set_period(struct perf_counter *counter,
 		left += period;
 		atomic64_set(&hwc->period_left, left);
 	}
+	/*
+	 * Quirk: certain CPUs dont like it if just 1 event is left:
+	 */
+	if (unlikely(left < 2))
+		left = 2;
 
 	per_cpu(prev_left[idx], smp_processor_id()) = left;