From: Andi Kleen <ak@suse.de>
To: Frank Cornelis <Frank.Cornelis@rug.ac.be>
Cc: linux-kernel@vger.kernel.org
Subject: Re: task_struct.mm == NULL
Date: 28 Nov 2001 13:23:20 +0100 [thread overview]
Message-ID: <p734rnfrsnb.fsf@amdsim2.suse.de> (raw)
In-Reply-To: <Pine.GSO.4.31.0111281300070.8642-100000@eduserv.rug.ac.be.suse.lists.linux.kernel>
In-Reply-To: Frank Cornelis's message of "28 Nov 2001 13:09:45 +0100"
Frank Cornelis <Frank.Cornelis@rug.ac.be> writes:
> Hey,
>
> I found in some code checks for task_struct.mm being NULL.
> When can task_struct.mm of a process be NULL except right before the
> process-kill?
For kernel threads that run in lazy-mm mode. It allows a much cheaper context
switch into kernel threads.
-Andi
next parent reply other threads:[~2001-11-28 12:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.GSO.4.31.0111281300070.8642-100000@eduserv.rug.ac.be.suse.lists.linux.kernel>
2001-11-28 12:23 ` Andi Kleen [this message]
2001-11-28 14:10 ` task_struct.mm == NULL Shaya Potter
2001-11-28 12:03 Frank Cornelis
2001-11-28 12:18 ` Tigran Aivazian
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