Re: [v3 PATCH 4/5] powerpc/pseries: Dump and flush SLB contents on SLB MCE errors.

2018-06-12 Thread Aneesh Kumar K.V
On 06/13/2018 09:36 AM, Michael Ellerman wrote: "Aneesh Kumar K.V" writes: On 06/12/2018 07:17 PM, Michael Ellerman wrote: Mahesh J Salgaonkar writes: diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index 2edc673be137..e56759d92356 100644 --- a/arch/

Re: [v3 PATCH 4/5] powerpc/pseries: Dump and flush SLB contents on SLB MCE errors.

2018-06-12 Thread Michael Ellerman
"Aneesh Kumar K.V" writes: > On 06/12/2018 07:17 PM, Michael Ellerman wrote: >> Mahesh J Salgaonkar writes: >>> diff --git a/arch/powerpc/platforms/pseries/ras.c >>> b/arch/powerpc/platforms/pseries/ras.c >>> index 2edc673be137..e56759d92356 100644 >>> --- a/arch/powerpc/platforms/pseries/ras.c

Re: [v3 PATCH 4/5] powerpc/pseries: Dump and flush SLB contents on SLB MCE errors.

2018-06-12 Thread Mahesh Jagannath Salgaonkar
On 06/12/2018 07:17 PM, Michael Ellerman wrote: > Mahesh J Salgaonkar writes: >> diff --git a/arch/powerpc/platforms/pseries/ras.c >> b/arch/powerpc/platforms/pseries/ras.c >> index 2edc673be137..e56759d92356 100644 >> --- a/arch/powerpc/platforms/pseries/ras.c >> +++ b/arch/powerpc/platforms/pse

Re: [v3 PATCH 4/5] powerpc/pseries: Dump and flush SLB contents on SLB MCE errors.

2018-06-12 Thread Aneesh Kumar K.V
On 06/12/2018 07:17 PM, Michael Ellerman wrote: Mahesh J Salgaonkar writes: diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index 2edc673be137..e56759d92356 100644 --- a/arch/powerpc/platforms/pseries/ras.c +++ b/arch/powerpc/platforms/pseries/ras.c @@

Re: [v3 PATCH 4/5] powerpc/pseries: Dump and flush SLB contents on SLB MCE errors.

2018-06-12 Thread Michael Ellerman
Mahesh J Salgaonkar writes: > diff --git a/arch/powerpc/platforms/pseries/ras.c > b/arch/powerpc/platforms/pseries/ras.c > index 2edc673be137..e56759d92356 100644 > --- a/arch/powerpc/platforms/pseries/ras.c > +++ b/arch/powerpc/platforms/pseries/ras.c > @@ -422,6 +422,31 @@ int pSeries_system_re

Re: [v3 PATCH 4/5] powerpc/pseries: Dump and flush SLB contents on SLB MCE errors.

2018-06-07 Thread Mahesh Jagannath Salgaonkar
On 06/08/2018 07:18 AM, Nicholas Piggin wrote: > On Thu, 07 Jun 2018 22:58:55 +0530 > Mahesh J Salgaonkar wrote: > >> From: Mahesh Salgaonkar >> >> If we get a machine check exceptions due to SLB errors then dump the >> current SLB contents which will be very much helpful in debugging the >> roo

Re: [v3 PATCH 4/5] powerpc/pseries: Dump and flush SLB contents on SLB MCE errors.

2018-06-07 Thread Nicholas Piggin
On Thu, 07 Jun 2018 22:58:55 +0530 Mahesh J Salgaonkar wrote: > From: Mahesh Salgaonkar > > If we get a machine check exceptions due to SLB errors then dump the > current SLB contents which will be very much helpful in debugging the > root cause of SLB errors. On pseries, as of today system cra

[v3 PATCH 4/5] powerpc/pseries: Dump and flush SLB contents on SLB MCE errors.

2018-06-07 Thread Mahesh J Salgaonkar
From: Mahesh Salgaonkar If we get a machine check exceptions due to SLB errors then dump the current SLB contents which will be very much helpful in debugging the root cause of SLB errors. On pseries, as of today system crashes on SLB errors. These are soft errors and can be fixed by flushing the