ACK: [SRU][bionic][PATCHv2 0/5] powerpc fixes (deadlock/snooze)

[Khaled Elmously]

On 2018-09-05 09:17:36 , Kamal Mostafa wrote:
> [v2 corrected cherry-picked-from shas]
> 
> Customer-requested fixes for two bugs.  These are all upstream cherry-picks
> which affect only powerpc.
> 
>   Watchdog CPU:19 Hard LOCKUP when kernel crash was triggered
>   BugLink: http://bugs.launchpad.net/bugs/1790636
> 
>   Ubuntu18.04.1: cpuidle: powernv: Fix promotion from snooze if next state disabled (performance)
>   BugLink: http://bugs.launchpad.net/bugs/1790602
> 
>  -Kamal
> 
> -----
> 
> 
> Gautham R. Shenoy (1):
>   cpuidle: powernv: Fix promotion from snooze if next state disabled
> 
> Nicholas Piggin (4):
>   powerpc: hard disable irqs in smp_send_stop loop
>   powerpc: Fix deadlock with multiple calls to smp_send_stop
>   powerpc: smp_send_stop do not offline stopped CPUs
>   powerpc/powernv: Fix opal_event_shutdown() called with interrupts
>     disabled
> 
>  arch/powerpc/kernel/smp.c                     | 48 ++++++++++++++++++---------
>  arch/powerpc/platforms/powernv/opal-irqchip.c |  2 +-
>  drivers/cpuidle/cpuidle-powernv.c             | 32 ++++++++++++++----
>  3 files changed, 60 insertions(+), 22 deletions(-)
>

Acked-by: Khalid Elmously <khalid.elmously at canonical.com>