linux-kernel - Re: [PATCH V6] x86/mm: Tracking linear mapping split events

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <fde8e0ff-ef91-56fd-189d-39fd57d164ff@intel.com>
Date:   Mon, 8 Feb 2021 15:30:01 -0800
From:   Dave Hansen <dave.hansen@...el.com>
To:     Saravanan D <saravanand@...com>, x86@...nel.org,
        dave.hansen@...ux.intel.com, luto@...nel.org, peterz@...radead.org,
        willy@...radead.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com,
        linux-mm@...ck.org, songliubraving@...com, tj@...nel.org,
        hannes@...xchg.org
Subject: Re: [PATCH V6] x86/mm: Tracking linear mapping split events

On 1/28/21 3:34 PM, Saravanan D wrote:
> 
> One of the many lasting sources of direct hugepage splits is kernel
> tracing (kprobes, tracepoints).
> 
> Note that the kernel's code segment [512 MB] points to the same
> physical addresses that have been already mapped in the kernel's
> direct mapping range.

Looks fine to me:

Acked-by: Dave Hansen <dave.hansen@...ux.intel.com>