Re: [PATCH v5 4/4] pseries/mobility: set NMI watchdog factor during an LPM

2022-07-26 Thread Michael Ellerman
Laurent Dufour writes: > Le 13/07/2022 à 22:17, Randy Dunlap a écrit : >> Hi Laurent, >> >> On 7/13/22 08:47, Laurent Dufour wrote: >>> diff --git a/Documentation/admin-guide/sysctl/kernel.rst >>> b/Documentation/admin-guide/sysctl/kernel.rst >>> index ddccd1077462..d73faa619c15 100644 >>> --- a

Re: [PATCH v5 4/4] pseries/mobility: set NMI watchdog factor during an LPM

2022-07-25 Thread Laurent Dufour
Le 13/07/2022 à 22:17, Randy Dunlap a écrit : > Hi Laurent, > > On 7/13/22 08:47, Laurent Dufour wrote: >> diff --git a/Documentation/admin-guide/sysctl/kernel.rst >> b/Documentation/admin-guide/sysctl/kernel.rst >> index ddccd1077462..d73faa619c15 100644 >> --- a/Documentation/admin-guide/sysctl

Re: [PATCH v5 4/4] pseries/mobility: set NMI watchdog factor during an LPM

2022-07-13 Thread Randy Dunlap
Hi Laurent, On 7/13/22 08:47, Laurent Dufour wrote: > diff --git a/Documentation/admin-guide/sysctl/kernel.rst > b/Documentation/admin-guide/sysctl/kernel.rst > index ddccd1077462..d73faa619c15 100644 > --- a/Documentation/admin-guide/sysctl/kernel.rst > +++ b/Documentation/admin-guide/sysctl/ker

[PATCH v5 4/4] pseries/mobility: set NMI watchdog factor during an LPM

2022-07-13 Thread Laurent Dufour
During an LPM, while the memory transfer is in progress on the arrival side, some latencies are generated when accessing not yet transferred pages on the arrival side. Thus, the NMI watchdog may be triggered too frequently, which increases the risk to hit an NMI interrupt in a bad place in the kern