*** This bug is a duplicate of bug 1888332 ***
https://bugs.launchpad.net/bugs/1888332
Same issue as LP: #1888332. If we use DSCR privileged MSR when writing
in the tracee, it will set dscr_inherit, which will properly restore the
DSCR that is written by the tracer.
Cascardo.
** This bug has been marked a duplicate of bug 1888332
[Potential Regression] dscr_inherit_exec_test from powerpc in
ubuntu_kernel_selftests failed on B/E/F
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https://bugs.launchpad.net/bugs/1888339
Title:
[Potential Regression] ptrace-tar from powerpc in
ubuntu_kernel_selftests failed on B/E/F
Status in ubuntu-kernel-tests:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Eoan:
Incomplete
Bug description:
Issue found on 5.3.0-64.58 with P8 node modoc (passed with P9 node)
# selftests: powerpc/ptrace: ptrace-tar
# test: ptrace_tar
# tags: git_version:f21e446-dirty
# [User Write (Running)] TAR: 10 PPR: 4000000000000 DSCR: 100
# [User Read (Running)] TAR: 20 PPR: 8000000000000 DSCR: 0
# [Ptrace Read (Running)] TAR: 10 PPR: 4000000000000 DSCR: 100
# [Ptrace Write (Running)] TAR: 20 PPR: 8000000000000 DSCR: 200
# failure: ptrace_tar
not ok 4 selftests: powerpc/ptrace: ptrace-tar # exit=1
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