Re: [PATCH 17/53] perf test: Improve bp_signal

On 2016/1/12 5:37, Arnaldo Carvalho de Melo wrote:

Em Mon, Jan 11, 2016 at 01:48:08PM +0000, Wang Nan escreveu:

quoted

Will Deacon [1] has some question on patch [2]. This patch improves
test__bp_signal so we can test:

  1. A watchpoint and a breakpoint that fire on the same instruction
  2. Nested signals

Test result:

  On x86_64 and ARM64 (result are similar with patch [2] on ARM64):

  # ./perf test -v signal
  17: Test breakpoint overflow signal handler                  :
  --- start ---
  test child forked, pid 10213
  count1 1, count2 3, count3 2, overflow 3, overflows_2 3
  test child finished with 0
  ---- end ----
  Test breakpoint overflow signal handler: Ok

So at least 2 cases Will doubted are handled correctly.

[1] http://lkml.kernel.org/g/20160104165535.GI1616@arm.com
[2] http://lkml.kernel.org/g/1450921362-198371-1-git-send-email-wangnan0@huawei.com

Signed-off-by: Wang Nan <redacted>
Cc: Will Deacon <redacted>

Will, are you ok with this one? Can I have an Acked-by or better,
Tested-by for the AARCH64 base?

Patch [2] is still in question. On AArch64 this test will fail even
without this patch.

Thank you.