Em Thu, May 10, 2018 at 12:01:59PM +0800, Leo Yan escreveu: > CoreSight doesn't allocate thread structure for unknown_thread in etm > auxtrace, so unknown_thread is NULL pointer. If the perf data doesn't > contain valid tid and then cs_etm__mem_access() uses unknown_thread > instead as thread handler, this results in segmentation fault when > thread__find_addr_map() accesses thread handler. > > This commit creates new thread data which is used by unknown_thread, so > CoreSight tracing can roll back to use unknown_thread if perf data > doesn't include valid thread info. This commit also releases thread > data for initialization failure case and for normal auxtrace free flow. > > Signed-off-by: Leo Yan <leo....@linaro.org> > Acked-by: Mathieu Poirier <mathieu.poir...@linaro.org>
Thanks, applied to perf/urgent. And please use a more descriptive, eye catching summary, something like: perf cs-etm: Fix segfault when accessing NULL unknown_thread variable :-) - Arnaldo
