From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andrew Morton <akpm@osdl.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-crypto@vger.kernel.org
Subject: Re: [CRYPTO]: Only reschedule if !in_atomic()
Date: Tue, 24 May 2005 09:58:10 +1000 [thread overview]
Message-ID: <1116892690.30513.13.camel@gaston> (raw)
In-Reply-To: <20050523162806.0e70ae4f.akpm@osdl.org>
On Mon, 2005-05-23 at 16:28 -0700, Andrew Morton wrote:
> This code can cause deadlocks on CONFIG_SMP && !CONFIG_PREEMPT kernels.
>
> Please see http://lkml.org/lkml/2005/3/10/358
>
> You (the programmer) *have* to know what context you're running in before
> doing a voluntary yield. There is simply no way to work this out at
> runtime.
Hrm... Linus just merged it though...
Ben.
next prev parent reply other threads:[~2005-05-24 0:03 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200505232300.j4NN07lE012726@hera.kernel.org>
2005-05-23 23:28 ` [CRYPTO]: Only reschedule if !in_atomic() Andrew Morton
2005-05-23 23:58 ` Benjamin Herrenschmidt [this message]
2005-05-24 0:24 ` Andrew Morton
2005-05-24 2:21 ` Herbert Xu
2005-05-24 2:31 ` Andrew Morton
2005-05-24 2:43 ` Herbert Xu
2005-05-24 3:20 ` James Morris
2005-05-24 3:50 ` Herbert Xu
2005-05-24 13:32 ` Bill Davidsen
[not found] ` <20050523.193612.08320356.davem@davemloft.net>
2005-05-24 3:47 ` Herbert Xu
2005-05-24 6:40 ` Arjan van de Ven
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