Re: [PATCH v3 0/4] Fixes for 3 separate NMI reentrancy bugs

2019-02-25 Thread Satheesh Rajendran
On Tue, Feb 26, 2019 at 04:08:57PM +1000, Nicholas Piggin wrote: > This series fixes several similar but unrelated bugs with NMIs > clobbering live registers without noticing it, because MSR[RI] is set. > Pretty rare bugs, but serious silent corruption consequences. > > For the most part these

[PATCH v3 0/4] Fixes for 3 separate NMI reentrancy bugs

2019-02-25 Thread Nicholas Piggin
This series fixes several similar but unrelated bugs with NMIs clobbering live registers without noticing it, because MSR[RI] is set. Pretty rare bugs, but serious silent corruption consequences. For the most part these can be observed and tested quite easily with the mambo simulator, except that