Re: [PATCH] parisc/entry: fix space adjustment on interruption

[Helge Deller]

On 10/30/25 08:56, Sven Schnelle wrote:
> In wide mode, the IASQ contain the upper part of the GVA
> during interruption. This needs to be reversed before
> the space is used - otherwise it contains parts of IAOQ.
> See Page 2-13 "Processing Resources / Interruption Instruction
> Address Queues" in the Parisc 2.0 Architecture Manual page 2-13
> for an explanation.
>
> The IAOQ/IASQ space_adjust was skipped for other interruptions
> than itlb misses. However, the code in handle_interruption()
> checks whether iasq[0] contains a valid space. Due to the not
> masked out bits this match failed and the process was killed.
>
> Also add space_adjust for IAOQ1/IASQ1 so ptregs contains sane values.
>
> Signed-off-by: Sven Schnelle <svens@xxxxxxxxxxxxxx>
> ---
>   arch/parisc/kernel/entry.S | 11 ++++++++---
>   1 file changed, 8 insertions(+), 3 deletions(-)

applied.

Thanks!
Helge