It is a known issue that some "commodity" machines fail when asked to
hotplug CPU0, so don't.

Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
--
Tvrtko, is it just this simple? Or do we need to avoid the physical
package?
-Chris
---
 tests/perf_pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/perf_pmu.c b/tests/perf_pmu.c
index a7501ca5..e9ce2881 100644
--- a/tests/perf_pmu.c
+++ b/tests/perf_pmu.c
@@ -982,7 +982,7 @@ static void cpu_hotplug(int gem_fd)
         * this has not affected busyness stats in the parent.
         */
        igt_fork(child, 1) {
-               int cpu = 0;
+               int cpu = 1;
 
                close(link[0]);
 
-- 
2.16.1

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