Re: [PATCH 0/3] sparc64: fix a window fill fixup lockup and two fault bugs

[Imre Kaloz]

On Fri, 28 Aug 2026 14:37:04 +0200
Stian Halseth <stian@xxxxxx> wrote:

> A register window fill that faults is mishandled in three ways on
> sparc64.  The first wedges the CPU in kernel mode and takes the
> machine with it; the other two corrupt what the kernel reports
> about the fault, and were found while chasing the first.

Hi Stian,

Confirmed on a Sun Ultra 45. With the series applied it never faulted
through 80 iterations, without them 60 out of 60.

Tested-by: Imre Kaloz <kaloz@xxxxxxxxxx>


Best,
Imre