Re: swsusp does not stop DMA properly during resume

[Andrew Morton]

Pavel Machek <pavel@xxxxxx> 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?


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