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由 Adrian Hunter 提交于
Attempting to clone map groups onto themselves will deadlock. It only happens because of other bugs, but the code should protect itself anyway. Reported-by: NLinus Torvalds <torvalds@linux-foundation.org> Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com> Tested-by: NJiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/1439994561-27436-2-git-send-email-adrian.hunter@intel.com [ Use pr_debug() instead of dump_fprintf() ] Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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