e603dc1507
The kernel refuses mmapping an event with the inherit flag set for something that is systemwide (cpu == -1), and the evsel layer got this reversed at some point, fix it. The symtom was that the --pid and --tid parameters for 'perf record' and 'perf top' returned with -EINVAL, like: # /tmp/build-perf/perf record -v -fo/tmp/perf.data -p 1042 Warning: ... trying to fall back to cpu-clock-ticks Fatal: failed to mmap with 22 (Invalid argument) Reported-by: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> 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: Arnaldo Carvalho de Melo <acme@redhat.com> |
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| firewire | ||
| perf | ||
| power/x86 | ||
| slub | ||
| testing/ktest | ||
| usb | ||
| virtio | ||