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On Thu, 19 Feb 2004 08:26:30 +0100, Pavel Machek <pavel@suse.cz> wrote: > Hi! > mhf wrote: >> I actually would like to rename the bit PG_nosave to PG_donttouch ;) to make a point with regard to: no transfer of page contents during suspend/resume no netdump no debugger access without override ... but the name does not matter and we do not have to change it. > > Its used for swsusp internal data, too... Yes of course - how else would swsusp run, but these data are also not "touched" during suspend and resume wrt transfer of page content. x86 Pages for PG_nosave: Video/BIOS 0xA0000-0XFFFFF Anything reserved < max_pfn Pentium 2 broken highmem pages Driver specific areas in DMA zone are also thinkable .. or else you get mce's or possibly crashes on newer x86 HW and on 64Bit for sure. - we had a mce recently at 0xa0000 on a Athlon XP and I went digging... Regards Michael -- Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||
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