Re: Bug#234976: kernel-source-2.6.4: Software Suspend doesn't work

From: Herbert Xu
Date: Mon Apr 26 2004 - 07:16:15 EST


On Mon, Apr 26, 2004 at 09:27:13PM +1000, Nigel Cunningham wrote:
>
> There used to be such a check. Centrinos, however, if I recall correctly,
> don't have PSE but can suspend with our current method. Perhaps we can

Then it's just pure luck. Whenever you have a page whose page table
lies in a page beyond that page itself the non-PSE case will fail.

> come up with a more nuanced test? Better still, though, we should just get
> proper AGP support for suspending and resuming in.

It's got nothing to do with AGP. This is a flaw in the swsusp code.
It can be triggered by anything that plays with page attributes.
--
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Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
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