On Thu, 29 Jul 2021 14:13:16 +1000, Jordan Niethe wrote:
> ISA v3.1 removes TM but includes a synthetic implementation for
> backwards compatibility. With this implementation, the tests
> ptrace-tm-spd-gpr and ptrace-tm-gpr should never be able to make any
> forward progress and eventually should be killed by the timeout.
> Instead on a P10 running in P9 mode, ptrace_tm_gpr fails like so:
>
> test: ptrace_tm_gpr
> tags: git_version:unknown
> Starting the child
> ...
> ...
> GPR[27]: 1 Expected: 2
> GPR[28]: 1 Expected: 2
> GPR[29]: 1 Expected: 2
> GPR[30]: 1 Expected: 2
> GPR[31]: 1 Expected: 2
> [FAIL] Test FAILED on line 98
> failure: ptrace_tm_gpr
> selftests: ptrace-tm-gpr [FAIL]
>
> [...]
Applied to powerpc/next.
[1/2] selftests/powerpc: Add missing clobbered register to to ptrace TM tests
https://git.kernel.org/powerpc/c/c95278a0534449efc64ac8169382bce217963be2
[2/2] selftests: Skip TM tests on synthetic TM implementations
https://git.kernel.org/powerpc/c/e42edf9b9d126bb1c743f2e7984877ba27f09fe7
cheers
