On Sat, 2017-07-29 at 12:50:27 UTC, Nicholas Piggin wrote: > The watchdog soft-NMI exception stack setup loads a stack pointer > twice, which is an obvious error. It ends up using the system reset > interrupt (true-NMI) stack, which is also a bug because the watchdog > could be preempted by a system reset interrupt that overwrites the > NMI stack. > > Change the soft-NMI to use the "emergency stack". The current kernel > stack is not used, because of the longer-term goal to prevent > asynchronous stack access using soft-disable. > > Signed-off-by: Nicholas Piggin <[email protected]>
Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/cc491f1d3583146eaee635c86b9c92 cheers
