On Thu, 2006-03-16 at 07:08 +0800, Pavel Machek wrote: > On Thu 16-03-06 11:53:27, Shaohua Li wrote: > > I thought there was a discussion before, but I still saw many pages > like > > BIOS reserved are saved/restored in swsusp. Pages reserved by BIOS, > not > > used by OS and kernel text should be skipped in swsusp to me. Below > > patch works in my test. Any thought? > > This will need quite a lot of testing. > > Does it actually fix anything? No, it doesn't. Just want to speed up swsusp. > I'm afraid that some of the BIOSs state is actually shared knowledge > with kernel, and that we should better save it, so that kernel's and > BIOS's view are consistent after resume. Fair enough. ACPI BIOS does communicate with OS by reserved memory. But in the mean time, blindly save/restore such mem might be dangerous. If all ACPI devices have their suspend/resume method, reserved memory should not be saved. Anyway, skipping kernel text should be safe, isn't it? Thanks, Shaohua
