From: Andrew Morton <akpm@osdl.org>
To: Pavel Machek <pavel@ucw.cz>
Cc: linux-kernel@vger.kernel.org, benh@kernel.crashing.org
Subject: Re: swsusp does not stop DMA properly during resume
Date: Tue, 20 Jan 2004 15:06:29 -0800 [thread overview]
Message-ID: <20040120150629.6949eda7.akpm@osdl.org> (raw)
In-Reply-To: <20040120224653.GA19159@elf.ucw.cz>
Pavel Machek <pavel@ucw.cz> wrote:
>
> Hi!
>
> As Ben pointed out, swsusp is not doing the right thing with devices
> in 2.6.1. I had patch for a long time here, and it needs to go
> in... It stops them before copying pages back, so there are no issues
> with running DMAs etc.
I _think_ what this patch is doing is suspending all devices from within
the boot kernel before starting into the resumed kernel. Is this correct?
> + update_screen(fg_console); /* Hmm, is this the problem? */
Cryptic comment. To what "problem" does this refer?
next prev parent reply other threads:[~2004-01-20 23:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-20 22:46 swsusp does not stop DMA properly during resume Pavel Machek
2004-01-20 23:06 ` Andrew Morton [this message]
2004-01-20 23:08 ` Pavel Machek
2004-01-20 23:40 ` Benjamin Herrenschmidt
2004-01-20 23:53 ` Pavel Machek
2004-01-21 0:01 ` Andrew Morton
2004-01-21 0:05 ` Pavel Machek
2004-01-21 0:09 ` Benjamin Herrenschmidt
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