On Fri, Aug 07, 2015 at 06:06:17PM -0700, Andi Kleen wrote:
> From: Andi Kleen <a...@linux.intel.com>
>
> When an error happens during alias parsing currently the complete
> parsing of all attributes of the PMU is stopped. This is breaks
> old perf on a newer kernel that may have not-yet-know
> alias attributes (such as .scale or .per-pkg).
hum, both .scale and .per-pgk are skip from term parsing via:
/*
* skip info files parsed in perf_pmu__new_alias()
*/
if (pmu_alias_info_file(name))
continue;
and loaded without any error report:
static int __perf_pmu__new_alias(struct list_head *list, char *dir,
char *name,
char *desc __maybe_unused, char *val)
SNIP
if (dir) {
/*
* load unit name and scale if available
*/
perf_pmu__parse_unit(alias, dir, name);
perf_pmu__parse_scale(alias, dir, name);
perf_pmu__parse_per_pkg(alias, dir, name);
perf_pmu__parse_snapshot(alias, dir, name);
}
list_add_tail(&alias->list, list);
return 0;
}
Which attribute parsing is failing for you?
thanks,
jirka
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