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Message-ID: <2e7637b9-0f84-41e3-bc6e-d22a74b53c74@amd.com>
Date: Thu, 31 Aug 2023 06:27:59 -0500
From: Mario Limonciello <mario.limonciello@....com>
To: Herbert Xu <herbert@...dor.apana.org.au>
Cc: thomas.lendacky@....com, linux-crypto@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/5] Fixes for dynamic boost control for 6.6
On 8/31/2023 04:02, Herbert Xu wrote:
> On Tue, Aug 29, 2023 at 10:07:54AM -0500, Mario Limonciello wrote:
>>
>> This series fixes all problems found. Ideally all patches should
>> be submitted for a future 6.6-rc, but, the most important is
>> "crypto: ccp: Get a free page to use while fetching initial nonce"
>> if the rest must be pushed to 6.7.
>
> As far as I can see it simply means that the new feature of DBC does
> not work. If that's all then I don't think it's an urgent issue and
> this can wait until 6.7.
>
> Cheers,
It works; but it's a failure rate type issue based on what is in the
page it gets. I didn't reproduce it when it was initially submitted.
I only noticed it when testing from Linus' tree.
So I suspect it's related to other completely unrelated code that now
runs before ccp is loaded by the kernel.
So some boots you see the character device and can interact with it,
others you can't. If you start with 'ccp' loaded and it working, then
unload/reload it might not come back.
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