> segfaults here.. > > [jolsa@krava perf]$ ./perf record -g sleep 1 > [ perf record: Woken up 1 times to write data ] > [ perf record: Captured and wrote 0.013 MB perf.data (~567 samples) ] > [jolsa@krava perf]$ ./perf report > perf: Segmentation fault > [jolsa@krava perf]$
Thanks. Fixed with this patch: commit 124014960a8fb09043914fb79ea86e0444408ab0 Author: Andi Kleen <[email protected]> Date: Wed Mar 5 07:28:56 2014 -0800 perf, tools, report: Fix perf report without -b Fix report crash when -b is not used. Reported by Jiri Olsa. Signed-off-by: Andi Kleen <[email protected]> diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index ef198c3..04ec451 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -1381,15 +1381,15 @@ static int machine__resolve_callchain_sample(struct machine *machine, * - No annotations (should annotate somehow) */ - if (branch->nr > PERF_MAX_BRANCH_DEPTH) { - pr_warning("corrupted branch chain. skipping...\n"); - return 0; - } - - if (callchain_param.branch_callstack) { + if (branch && callchain_param.branch_callstack) { int nr = min(max_stack, (int)branch->nr); struct branch_entry be[nr]; + if (branch->nr > PERF_MAX_BRANCH_DEPTH) { + pr_warning("corrupted branch chain. skipping...\n"); + return 0; + } + for (i = 0; i < nr; i++) { if (callchain_param.order == ORDER_CALLEE) { be[i] = branch->entries[i]; -- [email protected] -- Speaking for myself only -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
