Re: [PATCH v2 1/2] selftests/powerpc: Add missing clobbered register to to ptrace TM tests
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From: Michael Ellerman <hidden>
Date: 2021-08-27 13:28:49
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