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Date:   Fri, 8 Nov 2019 17:16:08 +0800
From:   Herbert Xu <herbert@gondor.apana.org.au>
To:     Tero Kristo <t-kristo@ti.com>
Cc:     Gilad Ben-Yossef <gilad@benyossef.com>,
        David Miller <davem@davemloft.net>,
        Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        linux-omap@vger.kernel.org,
        Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 09/10] crypto: add timeout to crypto_wait_req
Message-ID: <20191108091608.i5fxt2vu2nwrybgn@gondor.apana.org.au>
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On Fri, Nov 08, 2019 at 09:40:57AM +0200, Tero Kristo wrote:
>
> The problem is not detecting a hung task, the problem is determining what
> caused the hang. Personally I don't care if the system dies if a crypto
> accelerator self test has failed, as long as I get reported about the exact
> nature of the failure. The failures are expected to happen only in
> development phase of a crypto driver.
> 
> With the timeout patch in place, I get reported what exact crypto test case
> failed and I can focus my debug efforts on that one.

If that's all you need then how about just making the wait killable?

Cheers,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt