[PATCH] riscv: Enable interrupt during exception handling

[Maciej W. Rozycki]

On Mon, 23 Jun 2025, Palmer Dabbelt wrote:

> I'm kind of split on a Fixes tag here.  One could argue it's a regression, as
> having interrupts disabled during exceptions is going to cause all sorts of
> performance issues for users.  Seems a bit risk to just backport, though...
> 
> That said, if nobody noticed then it's probably a good sign nobody is really
> paying attention and we should just backport it before anyone notices...

 Oh, someone did notice and it's not only performance, cf. 
<https://lore.kernel.org/r/alpine.DEB.2.21.2501070143250.18889@angie.orcam.me.uk/>.

  Maciej