> On 25-May-2021, at 7:21 PM, Athira Rajeev <atraj...@linux.vnet.ibm.com> wrote: > > The "no_handler_test" in ebb selftests attempts to read the PMU > registers after closing of the event via helper function > "dump_ebb_state". With the MMCR0 control bit (PMCCEXT) in ISA v3.1, > read access to group B registers is restricted when MMCR0 PMCC=0b00. > Hence the call to dump_ebb_state after closing of event will generate > a SIGILL, which is expected. > > Test has below in logs: > <<>> > !! child died by signal 4 > failure: no_handler_test > <<>> > Tested patches on Power9 and Power10 - PowerVM environment.
Power9 - no_handler_test - with and without patch - success Power10 - no_handler_test - without patch - failure Power10 - no_handler_test - with patch - success Power9 - regs_access_pmccext_test - with patch - success Power10 - regs_access_pmccext_test - with patch - success Tested-by: Nageswara R Sastry <rnsas...@linux.ibm.com <mailto:rnsas...@linux.ibm.com>> Thank you.
