From: Paul Mackerras <paulus@samba.org>
To: David Wilder <dwilder@us.ibm.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [RFC-PATCH] Prevent tasks from sleeping in die()
Date: Thu, 11 May 2006 09:45:43 +1000 [thread overview]
Message-ID: <17506.31527.114193.218433@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <44628316.80600@us.ibm.com>
David Wilder writes:
> I am seeing an issue in die() when voluntary preemption is enabled.
> die()
> ->>show_regs()->>show_instructions()->>__get_user_nocheck()->>might_sleep()
Are you using Linus' current git tree? It has a patch that fixes this
problem by making __get_user_nocheck do the might_sleep only if the
address you give it is a user address.
Paul.
prev parent reply other threads:[~2006-05-10 23:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-11 0:19 [RFC-PATCH] Prevent tasks from sleeping in die() David Wilder
2006-05-10 23:45 ` Paul Mackerras [this message]
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