Bug#1100909: fix selftest tpdir2 Segmentation fault

[Kang Wenlin <wenlin.kang@windriver.com>]

On 3/20/2025 21:38, Salvatore Bonaccorso wrote:
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> Control: severity -1 normal
> Control: tags -1 + moreinfo
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> On Thu, Mar 20, 2025 at 07:04:14PM +0800, Wenlin Kang wrote:
> > Package: linux
> > Version: 6.1.129-1
> > Severity: critical
> >
> > The selftest tpidr2 fails with a segfault(Segmentation fault) when i run it.
> >
> > root@localhost:~# uname -rvm
> > 6.1.0-32-arm64 #1 SMP Debian 6.1.129-1 (2025-03-06) aarch64
> > root@localhost:~#
> > root@localhost:~# cd linux-kenel/tools/testing/selftests/arm64/abi && make
> > root@localhost:~/linux-kernel/tools/testing/selftests/arm64/abi# ./tpidr2
> > Segmentation fault
> >
> >
> > I've backported the fix patches from upstream for debian-linux(branch:
> > debian/6.1/bookworm)
> > and attached it, it works as:
> >
> > root@localhost:~/linux-kernel/tools/testing/selftests/arm64/abi# ./tpidr2
> > TAP version 13
> > 1..5
> > ok 0 skipped, TPIDR2 not supported
> > ok 1 skipped, TPIDR2 not supported
> > ok 2 skipped, TPIDR2 not supported
> > ok 3 skipped, TPIDR2 not supported
> > ok 4 skipped, TPIDR2 not supported
> I'm sorry but we are not going to apply such a patch series. Make sure
> they get backported upstream to the 6.1.y branch and let us know again
> when this has happened. Note that the upstream commit of the first
> patch is as well not correct, it would be
> dc64cc12bcd14219afb91b55d23192c3eb45aa43 ? Was this a typo?


Thank you for the clarification. I understand the requirement to backport
to the upstream 6.1.y branch. In addition, my apologies for the incorrect
commit ID on the first patch, thank you for correcting me. I will backport
the patches with the correct commit and inform you when it is complete.


> So in short: Make sure that the backport land in the upstream stable
> 6.1.y branch and then it will flow automatically down to us.
>
> I will close this bug for the time beeing as it can be handled on the
> upstream side.
>
> Regards,
> Salvatore

--
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Thanks
Wenlin Kang