On Maw, 2005-11-15 at 17:25 -0500, Dave Jones wrote: > Just for info: If this goes in, Red Hat/Fedora kernels will fork > swsusp development, as this method just will not work there. > (We have a restricted /dev/mem that prevents writes to arbitary > memory regions, as part of a patchset to prevent rootkits) Perhaps it is trying to tell you that you should be using SELinux rules not kernel hacks for this purpose ? > Even it were not for this, the whole idea seems misconcieved to me > anyway. I'm sceptical too but several Win9x BIOS vendor suspend paths were implemented in roughly this way. I don't however see how you can co-ordinate the freeze with outstanding O_DIRECT DMA to user pages for one item.
