Re: [PATCH v2] powerpc: Handle MCE on POWER9 with only DSISR bit 33 set

2017-09-21 Thread Nicholas Piggin
On Thu, 21 Sep 2017 19:57:20 +1000 Michael Neuling wrote: > On Thu, 2017-09-21 at 18:18 +1000, Nicholas Piggin wrote: > > On Thu, 21 Sep 2017 12:04:34 +1000 > > Michael Neuling wrote: > > > > > On POWER9 DD2.1 and below, it's possible to get Machine Check > > > Exception (MCE) where only DSIS

Re: [PATCH v2] powerpc: Handle MCE on POWER9 with only DSISR bit 33 set

2017-09-21 Thread Michael Neuling
On Thu, 2017-09-21 at 18:18 +1000, Nicholas Piggin wrote: > On Thu, 21 Sep 2017 12:04:34 +1000 > Michael Neuling wrote: > > > On POWER9 DD2.1 and below, it's possible to get Machine Check > > Exception (MCE) where only DSISR bit 33 is set. This will result in > > the linux MCE handler seeing an u

Re: [PATCH v2] powerpc: Handle MCE on POWER9 with only DSISR bit 33 set

2017-09-21 Thread Nicholas Piggin
On Thu, 21 Sep 2017 12:04:34 +1000 Michael Neuling wrote: > On POWER9 DD2.1 and below, it's possible to get Machine Check > Exception (MCE) where only DSISR bit 33 is set. This will result in > the linux MCE handler seeing an unknown event, which triggers linux to > crash. > > We change this by