Re: [PATCH v15 03/15] selftests/powerpc: Add ptrace tests for EBB
From: Simon Guo
Date: Wed Oct 12 2016 - 10:06:50 EST
On Fri, Oct 07, 2016 at 08:44:48AM +1100, Michael Ellerman wrote:
> wei.guo.simon@xxxxxxxxx writes:
> > From: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx>
> > This patch adds ptrace interface test for EBB/PMU specific
> > registers. This also adds some generic ptrace interface
> > based helper functions to be used by other patches later
> > on in the series.
> This is consistently failing for me on a P8 Tuleta (pvr 004b 0201):
> # ./ptrace-ebb
> test: ptrace_ebb_pmu
> tags: git_version:v4.8-rc5-176-g89cf1de0ae90
> EBBRR: 100059f8
> EBBHR: 100053cc; expected: 100053cc
> BESCR: 8000000100000000
> SIAR: 100012d0
> SDAR: 3fff7e4cc000
> SIER: 3000000; expected: 2000000
> MMCR2: 0; expected: 0
> MMCR0: 180000080; expected: 180000080
> failure: ptrace_ebb_pmu
Yes.. SIER has different value in baremetal and virtual machine
due to different MSR[HV] value. I will correct it. Originally I only
tested in virtual BE/LE machines.
Currently all tests cases (with fix) passed on one baremetal P8 machine
with LE OS installed. And I will try to find another baremetal with BE
OS installed to test.
Thanks for indicating it.