On 10/8/25 6:06 PM, Jan Beulich wrote:
On 08.10.2025 13:20, Roger Pau Monné wrote:
On Mon, Sep 29, 2025 at 07:35:53PM -0400, Jason Andryuk wrote:
On 2025-09-25 08:18, Teddy Astie wrote:
Le 25/09/2025 à 12:48, Jan Beulich a écrit :
Along with Zen2 (which doesn't expose ERMS), both families reportedly
suffer from sub-optimal aliasing detection when deciding whether REP MOVSB
can actually be carried out the accelerated way. Therefore we want to
avoid its use in the common case (memset(), copy_page_hot()).
s/memset/memcpy (memset probably uses rep stosb which is not affected IIUC)
Reported-by: Andrew Cooper<[email protected]>
Signed-off-by: Jan Beulich<[email protected]>
With Teddy's suggested change:
Reviewed-by: Jason Andryuk<[email protected]>
Acked-by: Roger Pau Monné<[email protected]>
May I ask for a release-ack here, seeing that it alters behavior that went in
close before the freeze?
Release-Acked-by: Oleksii Kurochko<[email protected]>
~ Oleksii
