Re: [linux-next:master] [x86/module] 6661cae1aa: WARNING:at_arch/x86/mm/pat/set_memory.c:#__cpa_process_fault

From: Mike Rapoport
Date: Fri Oct 11 2024 - 11:44:26 EST


On Fri, Oct 11, 2024 at 07:00:01AM -0700, Dave Hansen wrote:
> On 10/11/24 06:08, Mike Rapoport wrote:
> > This patch disables ROX caches on 32-bit, it should fix the issue.
>
> While I'm not going to shed a tear for 32-bit, what's the actual
> compatibility issue with 32-bit?

>From the stack trace it looks like execmem tries to update the direct map
for highmem memory, and cpa is not happy about it.

--
Sincerely yours,
Mike.