Re: [PATCH v2 2/3] powerpc: use NMI IPI for smp_send_stop

2017-10-31 Thread Nicholas Piggin
On Tue, 24 Oct 2017 07:15:30 +0800 kbuild test robot wrote: > Hi Nicholas, > > [auto build test ERROR on powerpc/next] > [also build test ERROR on v4.14-rc6 next-20171018] > [if your patch is applied to the wrong git tree, please drop us a note to > help improve the system] > > url: > http

Re: [PATCH v2 2/3] powerpc: use NMI IPI for smp_send_stop

2017-10-23 Thread kbuild test robot
Hi Nicholas, [auto build test ERROR on powerpc/next] [also build test ERROR on v4.14-rc6 next-20171018] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Nicholas-Piggin/avoid-secondary-hold-spinlo

Re: [PATCH v2 2/3] powerpc: use NMI IPI for smp_send_stop

2017-10-23 Thread kbuild test robot
Hi Nicholas, [auto build test ERROR on powerpc/next] [also build test ERROR on v4.14-rc6 next-20171018] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Nicholas-Piggin/avoid-secondary-hold-spinlo

[PATCH v2 2/3] powerpc: use NMI IPI for smp_send_stop

2017-10-23 Thread Nicholas Piggin
Use the NMI IPI rather than smp_call_function for smp_send_stop. Have stopped CPUs hard disable interrupts rather than just soft disable. This function is used in crash/panic/shutdown paths to bring other CPUs down as quickly and reliably as possible, and minimizing their potential to cause troubl