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74534341c1
When I ran "perf kvm ... top", I encountered the following error output. Error: perfcounter syscall returned with -1 (Too many open files) Fatal: No CONFIG_PERF_EVENTS=y kernel support configured? Looking into perf, I found perf opens too many directories at initialization time, but forgets to close them. Here is the fix. LKML-Reference: <4C230362.5080704@cn.fujitsu.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>