Em Tue, Nov 16, 2021 at 02:57:33PM +0100, Marco Elver escreveu:

On Tue, Nov 16, 2021 at 09:51AM -0300, Arnaldo Carvalho de Melo wrote:

quoted

Em Mon, Nov 15, 2021 at 12:28:23PM +0100, Marco Elver escreveu:

quoted

Add basic stress test for sigtrap handling as a perf tool built-in test.
This allows sanity checking the basic sigtrap functionality from within
the perf tool.

Works as root:

[root@five ~]# perf test sigtrap
73: Sigtrap                                                         : Ok
[root@five ~]

Not for !root:

[...]

quoted

FAILED sys_perf_event_open(): Permission denied
test child finished with -1
---- end ----
Sigtrap: FAILED!

Ah, that shouldn't be the case. It's missing exclude_kernel/hv, and this
test should work just fine as non-root. Please squash the below as well.
Let me know if you'd like a v2.

Ack for your change printing errors as well.

Squashed, thanks!

- Arnaldo