On Fri, 25 Jan 2008, Nick Piggin wrote: > On Wednesday 23 January 2008 17:22, Shaohua Li wrote: > > Anonymous page might have fs-private metadata, the page is truncated. As > > the page hasn't mapping, page migration refuse to migrate the page. It > > appears the page is only freed in page reclaim and if zone watermark is > > low, the page is never freed, as a result migration always fail. I > > thought we could free the metadata so such page can be freed in > > migration and make migration more reliable? > > Anonymous pages should not have fs-private metadata. > > Orphaned pages I guess you mean? They should not be accessable via > the pagecache or the page tables, so how do they keep tangling up > migration? Where/how is migration finding these pages?!
Is this maybe related to memory unplug or some such project? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/