Thadeu's patch "3c42e9542050 selftests/powerpc/spectre_v2: Return skip
code when miss_percent is high" was merged on mainline for v5.17-rc1 and
applied via upstream stable to jammy/linux for Ubuntu-5.15.0-19.19 and
to impish/linux for Ubuntu-5.13.0-40.45.
** Changed in: linux (Ubuntu)
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Impish)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Impish)
Status: New => Confirmed
** Changed in: linux (Ubuntu Jammy)
Status: New =>
https://lore.kernel.org/linuxppc-
dev/20211207130557.40566-1-casca...@canonical.com/T/#u
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https://bugs.launchpad.net/bugs/1953366
Title:
spectre_v2 from ubuntu_kernel_selftests ADT
This looks like very similar to the vulnerable case that I changed to
return as skipped. It's possible that the host is doing one mitigation
while the guest is informed of a different mitigation, leading to this
mis-match.
I will take this upstream and see how it goes.
Cascardo.
--
You
As this is failing on ADT, it is failing on VMs on an environment we
don't have much control of. This could be caused by host kernel, qemu or
libvirt combinations that will make the guest kernel observe a given
mitigation while it's not really in place.
This test was added after 5.4, so the
** Also affects: ubuntu-kernel-tests
Importance: Undecided
Status: New
** Tags added: sru-20211129
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https://bugs.launchpad.net/bugs/1953366
Title:
spectre_v2 from
** Tags added: 5.13 ubuntu-kernel-selftests
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https://bugs.launchpad.net/bugs/1953366
Title:
spectre_v2 from ubuntu_kernel_selftests ADT test failure with
5.13/5.11 ppc64el
To manage
** Description changed:
This is a scripted bug report about ADT failures while running linux
tests for linux/5.13.0-23.23 on impish. Whether this is caused by the
dep8 tests of the tested source or the kernel has yet to be determined.
+
+ This test was previously being skipped. After
** Summary changed:
- spectre_v2 from ubuntu_kernel_selftests failure with Impish/Hirsute ppc64el
+ spectre_v2 from ubuntu_kernel_selftests ADT test failure with 5.13/5.11
ppc64el
** Description changed:
This is a scripted bug report about ADT failures while running linux
tests for
