On 27.11.23 16:07, Alexandru Elisei wrote:
Hi,
On Fri, Nov 24, 2023 at 08:54:12PM +0100, David Hildenbrand wrote:
On 19.11.23 17:57, Alexandru Elisei wrote:
To be able to reserve the tag storage associated with a page requires that
the tag storage page can be migrated.
When HW KASAN is enabled, the kernel allocates pages, which are now tagged,
in non-preemptible contexts, which can make reserving the associate tag
storage impossible.
I assume that it's the only in-kernel user that actually requires tagged
memory (besides for user space), correct?
Indeed, this is the case. I'll expand the commit message to be more clear about
it.
Great, thanks!
--
Cheers,
David / dhildenb
