From: Tadeusz Struk <tadeusz.struk@intel.com>
Subject: Re: [crypto / sparc64] cryptomgr_test OOPS
Date: Thu, 5 May 2016 09:17:32 -0700
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Cc: David Miller <davem@davemloft.net>, linux-crypto@vger.kernel.org,
	sparclinux@vger.kernel.org, Nicolai Stange <nicstange@gmail.com>
To: Herbert Xu <herbert@gondor.apana.org.au>,
	Anatoly Pugachev <matorola@gmail.com>
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On 05/05/2016 02:50 AM, Herbert Xu wrote:
> On Thu, May 05, 2016 at 12:40:18PM +0300, Anatoly Pugachev wrote:
>>
>> sure, based on your cryptodev git, just tried 4.3 (6a13feb , good)
>> kernel in attempt to find (bisect) when RSA code break, already tested
>> 4.5 (44d1b6d , bad) , 4.4 (afd2ff9 , bad).
>> Going to try your patch soon (when I'm back home).
>> So far 4.3 passes RSA stage without OOPS, but for other reason does
>> not boot to login prompt. Boot log exempt (4.3), this is with
>> CONFIG_CRYPTO_RSA=y :
> 
> That jibes with this being a problem with the SG list since it
> was only added in 4.4.

Before 4.4 the rsa sw implementation kmalloced intermediate flat buffer
and copied the data internally.
Thanks,
-- 
TS