Re: [RESEND PATCH v5] arm64: Enable vmalloc-huge with ptdump

From: Dev Jain

Date: Fri Sep 19 2025 - 03:46:25 EST



On 19/09/25 12:57 pm, Will Deacon wrote:
Dev,

On Wed, Sep 17, 2025 at 04:43:00PM +0100, Will Deacon wrote:
On Tue, Sep 16, 2025 at 11:30:26AM +0100, Will Deacon wrote:
I'm currently trying to put together a litmus test with James (cc'd) so
maybe we can help you out with that part.
Here's what we came up with. There's not a good way to express the IPI
from kick_all_cpus_sync() but it turns out that the ISB from the TLB
invalidation is sufficient anyway. Does it make sense to you?
Any comments on the litmus test and/or my question about serialisation
of the static key? I'll be moving the arm64 tree to "fixes only" soon
as far as 6.18 is concerned.

Sorry, I had read your replies but thought I will take time to respond since
it seemed this patch wouldn't land in 6.18, and I need to recall the discussion :)
I'll reply to the other mail.


Will