Hi! > [Please consider as 2.6.23 material.] > --- > From: Rafael J. Wysocki <rjw@xxxxxxx> > > On some systems some PFNs reported by the early initialization code as 'nosave' > may be invalid. If we try to set the corresponding bits in the hibernation > bitmap, BUG_ON() in memory_bm_find_bit() will be triggered and the system > won't be able to boot (cf. https://bugzilla.novell.com/show_bug.cgi?id=296242). > > Prevent this from happening by verifying if the 'nosave' PFNs are valid in > mark_nosave_pages(). > > Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx> ACK. > @@ -709,7 +709,8 @@ static void mark_nosave_pages(struct mem > region->end_pfn << PAGE_SHIFT); > > for (pfn = region->start_pfn; pfn < region->end_pfn; pfn++) > - memory_bm_set_bit(bm, pfn); > + if (pfn_valid(pfn)) > + memory_bm_set_bit(bm, pfn); > } > } > -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
