Messages in this thread | | | Date | Fri, 18 Nov 2005 09:33:20 +0000 (GMT) | From | Hugh Dickins <> | Subject | Re: [PATCH 07/11] unpaged: COW on VM_UNPAGED |
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On Fri, 18 Nov 2005, David S. Miller wrote: > > If we use MAP_SHARED and let vbetool modify the real BIOS data > area, resume fails. That's convincing enough for me :)
Yes, I agree with your analysis: I was expecting Dominik's resume failure to have a more conventional cause, but yes, it's from that new vbetool actually corrupting the memory instead of using it as a template.
Right, no warning message then. (Some other time we might want to withdraw the feature - as you said, they could just read /dev/mem - and put in a research warning in preparation; but right now I've had enough of such noise.)
Dominik's Bad page states I'll be thinking about later in the day.
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