Hi,
This is the v2 to fix cpu buffers unavailable problem after some operations on file 'tracing_cpumask' and 'snapshot', also upload its testcase. Changes show as below.
v2: - Fix compile issue reported-by kernel test robot lkp@intel.com with suggestion from Steve: - Link: https://lore.kernel.org/all/202308050731.PQutr3r0-lkp@intel.com/ - Link: https://lore.kernel.org/all/20230804125107.41d6cdb1@gandalf.local.home/
- Add a step to set tracing_on in testcase (see patch 2) and add descriptions of each step.
v1: - Link: https://lore.kernel.org/all/20230804124549.2562977-1-zhengyejian1@huawei.com...
Zheng Yejian (2): tracing: Fix cpu buffers unavailable due to 'record_disabled' messed selftests/ftrace: Add a basic testcase for snapshot
kernel/trace/trace.c | 6 ++++ .../ftrace/test.d/00basic/snapshot1.tc | 31 +++++++++++++++++++ 2 files changed, 37 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/00basic/snapshot1.tc