From: Andrew Morton <akpm@osdl.org>
To: Pavel Machek <pavel@ucw.cz>
Cc: petero2@telia.com, linux-kernel@vger.kernel.org
Subject: Re: Software suspend testing in 2.6.0-test1
Date: Fri, 18 Jul 2003 12:37:28 -0700 [thread overview]
Message-ID: <20030718123728.1ff12b51.akpm@osdl.org> (raw)
In-Reply-To: <20030718175045.GA195@elf.ucw.cz>
Pavel Machek <pavel@ucw.cz> wrote:
>
> > It would be much better to freeze kernel threads _after_ doing the big
> > memory shrink.
>
> I wanted to avoid that: we do want user threads refrigerated at that
> point so that we know noone is allocating memory as we are trying to
> do memory shrink.
freeze(threads which have task->mm)
shrink_memory();
freeze(threads which have !task->mm)
That's pretty simple.
> I'd like to avoid having refrigerator run in two phases....
The whole thing can deadlock without kernel thread services.
next prev parent reply other threads:[~2003-07-18 19:30 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-17 19:46 Software suspend testing in 2.6.0-test1 Peter Osterlund
2003-07-17 20:00 ` Pavel Machek
2003-07-17 20:09 ` Andrew Morton
2003-07-18 9:59 ` Peter Osterlund
2003-07-18 10:24 ` Andrew Morton
2003-07-18 15:22 ` Pavel Machek
2003-07-18 15:55 ` Peter Osterlund
2003-07-18 16:45 ` Andrew Morton
2003-07-18 17:50 ` Pavel Machek
2003-07-18 18:02 ` Patrick Mochel
2003-07-18 18:04 ` Pavel Machek
2003-07-18 21:05 ` Nigel Cunningham
2003-07-18 19:37 ` Andrew Morton [this message]
2003-07-18 19:58 ` Peter Osterlund
2003-07-18 20:15 ` Andrew Morton
2003-07-18 22:13 ` Pavel Machek
2003-07-20 0:22 ` Peter Osterlund
2003-07-20 1:01 ` Andrew Morton
2003-07-20 7:45 ` Peter Osterlund
2003-07-18 21:05 ` Nigel Cunningham
2003-07-21 10:00 ` Peter Osterlund
2003-07-21 12:58 ` Pavel Machek
2003-07-21 14:36 ` Peter Osterlund
2003-07-21 21:28 ` Pavel Machek
2003-07-21 23:46 ` Peter Osterlund
2003-07-22 11:04 ` Pavel Machek
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