From: Stefan Roesch <shr@devkernel.io>
To: Bagas Sanjaya <bagasdotme@gmail.com>
Cc: kernel-team@fb.com, linux-mm@kvack.org, riel@surriel.com,
mhocko@suse.com, david@redhat.com, linux-doc@vger.kernel.org,
akpm@linux-foundation.org, hannes@cmpxchg.org
Subject: Re: [PATCH v1] docs/mm: extend ksm doc
Date: Wed, 15 Mar 2023 08:59:25 -0700 [thread overview]
Message-ID: <qvqwa60ec855.fsf@dev0134.prn3.facebook.com> (raw)
In-Reply-To: <ZBFCud+I8mVAoh87@debian.me>
Bagas Sanjaya <bagasdotme@gmail.com> writes:
> [[PGP Signed Part:Undecided]]
> On Tue, Mar 14, 2023 at 01:45:57PM -0700, Stefan Roesch wrote:
>> +to cancel that advice and restore unshared pages: whereupon KSM
>> +unmerges whatever is merged for that process. Note: this unmerging call
>> +may suddenly require more memory than is available - possibly failing
>> +with EAGAIN, but more probably arousing the Out-Of-Memory killer.
>
This follows the wording in the previous paragraph, do you also want to
change the previous paragraph?
> "... to disable KSM and let it unmerges ... . Note that this unmerging
> call may exhaust memory and triggers OOM killer."
>
>> +However, if the system is dedicated to running multiple jobs within the
>> +same security domain, there is a usecase where multiple instances of the
>> +same job are running inside a safe shared security domain and using the
>> +same sensitive data.
>
> "... it is possible for multiple instances ... and share the same
> sensitive data."
>
Something like this?
>> +However, if the system is dedicated to running multiple jobs within the
>> +same security domain, there is a usecase where multiple instances of the
>> +same job are running inside a safe shared security domain and share the
>> +same sensitive data.
>
The is possible I think is less clear.
Thanks.
prev parent reply other threads:[~2023-03-15 16:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-14 20:45 [PATCH v1] docs/mm: extend ksm doc Stefan Roesch
2023-03-15 3:59 ` Bagas Sanjaya
2023-03-15 4:28 ` Randy Dunlap
2023-03-15 15:59 ` Stefan Roesch [this message]
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