• Arnaldo Carvalho de Melo's avatar
    perf session: Remove threads from tree on PERF_RECORD_EXIT · 720a3aeb
    Arnaldo Carvalho de Melo authored
    Move them to a session->dead_threads list just like we do with maps that
    are replaced, because we may have hist_entries pointing to them.
    
    This fixes a bug when inserting maps for a new thread that reused the
    TID, mixing maps for two different threads, causing an endless loop.
    
    The code for insering maps should be made more robust but for .35 this
    is the minimalistic patch.
    Reported-by: default avatarIngo Molnar <mingo@elte.hu>
    Cc: David S. Miller <davem@davemloft.net>
    Cc: Frédéric Weisbecker <fweisbec@gmail.com>
    Cc: Mike Galbraith <efault@gmx.de>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Stephane Eranian <eranian@google.com>
    Cc: Tom Zanussi <tzanussi@gmail.com>
    LKML-Reference: <new-submission>
    Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    720a3aeb
session.c 22.2 KB