ACK/cmnt: [Bionic][PATCH][SRU 0/3] IBM Boston CPU hardlockup

[Kleber Souza]

On 04/30/18 18:57, Gustavo Walbon wrote:
> BugLink: http://bugs.launchpad.net/bugs/1767927
> 
> == SRU Justification ==
> In few tests of validation of firmware was detected this issue which
> triggers a hardlockup that was fixed through an update for firmware
> in the skiboot project and this patchset in the kernel side.
> 
> All patches were merged on the upstream kernel v4.17-rc1.
> 
> Nicholas Piggin (3):
>   powerpc/powernv: Handle unknown OPAL errors in opal_nvram_write()
>   powerpc/64s: return more carefully from sreset NMI
>   powerpc/64s: sreset panic if there is no debugger or crash dump
>     handlers
> 
>  arch/powerpc/include/asm/hw_irq.h           |  8 ++++
>  arch/powerpc/include/asm/paca.h             |  1 +
>  arch/powerpc/kernel/asm-offsets.c           |  1 +
>  arch/powerpc/kernel/exceptions-64s.S        | 61 +++++++++++++++++++++++++++--
>  arch/powerpc/kernel/traps.c                 | 15 ++++++-
>  arch/powerpc/platforms/powernv/opal-nvram.c |  4 ++
>  6 files changed, 85 insertions(+), 5 deletions(-)
> 

>From the comments made on the original IBM bug it seems that a fourth
patch has been sent upstream but not accepted. The patches are limited
to the powerpc architecture, so provided that IBM tests the changes for
regressions and make sure the three patches are sufficient once they
reach a build in -proposed:

Acked-by: Kleber Sacilotto de Souza <kleber.souza at canonical.com>