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authorJiri Olsa <jolsa@redhat.com>2017-01-03 17:24:54 +0300
committerIngo Molnar <mingo@kernel.org>2017-01-14 13:06:50 +0300
commit18e7a45af91acdde99d3aa1372cc40e1f8142f7b (patch)
tree92cd4d70fa72de908bd1376041cd84ab1829b5f1 /drivers/xen/evtchn.c
parent475113d937adfd150eb82b5e2c5507125a68e7af (diff)
downloadlinux-18e7a45af91acdde99d3aa1372cc40e1f8142f7b.tar.xz
perf/x86: Reject non sampling events with precise_ip
As Peter suggested [1] rejecting non sampling PEBS events, because they dont make any sense and could cause bugs in the NMI handler [2]. [1] http://lkml.kernel.org/r/20170103094059.GC3093@worktop [2] http://lkml.kernel.org/r/1482931866-6018-3-git-send-email-jolsa@kernel.org Signed-off-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vince@deater.net> Cc: Vince Weaver <vincent.weaver@maine.edu> Link: http://lkml.kernel.org/r/20170103142454.GA26251@krava Signed-off-by: Ingo Molnar <mingo@kernel.org>
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